Member State report / Art8 / 2012 / D5 / Romania / Black Sea

Report type Member State report to Commission
MSFD Article Art. 8 Initial assessment (and Art. 17 updates)
Report due 2012-10-15
GES Descriptor D5 Eutrophication
Member State Romania
Region/subregion Black Sea
Reported by Ministerul Mediului si Padurilor
Report date 2012-10-15
Report access RO_MSFD8bPressures_20130430.xml

Periboina-Vama Veche-Mangalia

GES component
D5C1 Nutrient concentrations (5.1, 5.1.1)
D5C1 Nutrient concentrations (5.1, 5.1.1)
D5C1 Nutrient concentrations (5.1, 5.1.1)
D5C1 Nutrient concentrations (5.1, 5.1.1)
D5C1 Nutrient concentrations (5.1, 5.1.1)
D5C1 Nutrient concentrations (5.1, 5.1.1)
Feature
LevelPressureOverall
LevelPressureNLoad
LevelPressureNLoad
LevelPressureNLoad
LevelPressureNConcentration
LevelPressurePLoad
LevelPressurePConcentration
LevelPressureOLoad
LevelPressureOLoad
LevelPressureOConcentration
ImpactPressureWaterColumn
ImpactPressureSeabedHabitats
Assessment Topic
NutrientsNitrogen5_1
NutrientsNitrogen5_1
NutrientsNitrogen5_1
NutrientsPhosphorus5_1
NutrientsOrganicMatter5_1
NutrientsOrganicMatter5_1
Element
NotRelevant
NotRelevant
Element 2
not assessed
not assessed
ThresholdValue
0,03
0,1
1,5
0,03
6
6,2
Threshold value/Value unit
mg/l N-NO2
mg/l N-NH4
mg/l N-NO3
mg/l P-PO4
mg/l BOD5
mg/l O2
Proportion threshold value
0
67
0
0
0
0
Status of criteria/indicator
NotGood
NotGood
NotGood
Good
Good
Good
Status trend
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Status confidence
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Description (status of criteria/indicator)
Limitations
The DIN concentration (dissolved inorganic nitrogen) represents the sum of oxidized forms nitrate and nitrite concentrations and of reduced form, ammonium. The future trend can not be determined because the concentration of these forms of nitrogen in the water column is influenced by several factors: pollution from land based sources, intake tributaries, rainfall, biological activities and physicochemical phenomena of the ecosystem.
The future trends was not assess because the discharged loads depending on the number of point pollution sources, the number of activity hours and during the season time depending on the number of tourists.
The future trends was not assess because the discharged loads depending on the number of point pollution sources, the number of activity hours and during the season time depending on the number of tourists.
The future trends was not assess because the discharged loads depending on the number of point pollution sources, the number of activity hours and during the season time depending on the number of tourists.
The future trends can not be determined because the concentration of N-NO3 in the water column is influenced by several factors: pollution from land based sources, intake tributaries, rainfall, biological activities and physicochemical phenomena of the ecosystem.
The future trends was not assess because the discharged loads depending on the number of point pollution sources, the number of activity hours.
The future trends can not be determined because the concentration of P-PO4 in the water column is influenced by several factors: pollution from land based sources, intake tributaries, rainfall, biological activities and physicochemical phenomena of the ecosystem.
The future trends was not assess because the discharged loads depending on the number of point pollution sources, the number of activity hours and during the season time depending on the number of tourists.
The future trends was not assess because the discharged loads depending on the number of point pollution sources, the number of activity hours and during the season time depending on the number of tourists.
The future trends can not be established because the oxygen regime variability depends on many factors: the currents and winds, water temperature, intake tributaries, various biological and chemical processes in water.
not assessed
not assessed
Assessment period
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
Description
Dissolved inorganic nitrogen content in the coastal waters of the Black Sea, is influenced by the Danube - Black Sea Channal intake, port and industrial activities and the urban wastewater treatment plants which record higher concentrations of ammonium form. The water column DIN seasonal variation is due to biological and physico-chemical phenomena in the marine ecosystem. During the studied period the lowest value was recorded in 2007 and highest in 2010.
The N-NO3 load was calculated taking into consideration the point pollution sources identified as being significant, according to WFD and CIS Guidance document no. 3 on Analysis of Pressures and Impacts. Those are represented by the Urban Wastewater Treatment Plants, industrial units ant other types of activities which discharges only urban wastewater. The significant point pollution sources are located along the coastal area: the industrial sources discarges in the northern and southern part of coastal waters and the urban sources are equaly spread along the costal waters shore. Another transport way of the nutrients into the Black Sea is represented by the Danube-Black Sea Channal, through its both branches. The N-NO3 load represents an average load discharged between 2007-2011 into the marine environment.
The N-NO3 load was calculated taking into consideration the point pollution sources identified as being significant, according to WFD and CIS Guidance document no. 3 on Analysis of Pressures and Impacts. Those are represented by the Urban Wastewater Treatment Plants, industrial units ant other types of activities which discharges only urban wastewater. The significant point pollution sources are located along the coastal area: the industrial sources discarges in the northern and southern part of coastal waters and the urban sources are equaly spread along the costal waters shore. Another transport way of the nutrients into the Black Sea is represented by the Danube-Black Sea Channal, through its both branches. The N-NO3 load represents an average load discharged between 2007-2011 into the marine environment.
The N-NO3 load was calculated taking into consideration the point pollution sources identified as being significant, according to WFD and CIS Guidance document no. 3 on Analysis of Pressures and Impacts. Those are represented by the Urban Wastewater Treatment Plants, industrial units ant other types of activities which discharges only urban wastewater. The significant point pollution sources are located along the coastal area: the industrial sources discarges in the northern and southern part of coastal waters and the urban sources are equaly spread along the costal waters shore. Another transport way of the nutrients into the Black Sea is represented by the Danube-Black Sea Channal, through its both branches. The N-NO3 load represents an average load discharged between 2007-2011 into the marine environment.
N-NO3 concentration was determined in the water column. Data is from national monitoring network. The mean annual concentrations for the studied period is coresponding to the reference state, according to the ,,Studies on the development of classification and comprehensive assessment of the status of surface waters (transitional waters and coastal waters) as required by the Water Framework Directive 2000/60/EC on the basis of biological, chemical and hydromorphological ", developed by the National Institute for Marine Research and Development ”Grigore Antipa” from Constanta. Is noted, however, an increase in these values ​​in 2009 and 2010, but not exceeding the reference state.
The P-PO4 load was calculated taking into consideration the load trasported only by the Danube - Black Sea Channal. The Black Sea Channal discharges into the Black Sea through its branches located in the central part of the coastal waters. The P-PO4 load represents an annual average load for the 2007-2011 period.
P-PO4 concentration was determined in the water column. Data is from national monitoring network. The mean annual concentrations for the studied period is coresponding to the reference state, according to the ,,Studies on the development of classification and comprehensive assessment of the status of surface waters (transitional waters and coastal waters) as required by the Water Framework Directive 2000/60/EC on the basis of biological, chemical and hydromorphological ", developed by the National Institute for Marine Research and Development ”Grigore Antipa” from Constanta, showing a slight increase in 2007.
The CBO5 load was calculated taking into consideration the point pollution sources identified as being significant, according to WFD and CIS Guidance document no. 3 on Analysis of Pressures and Impacts.Those are represented by the Urban Wastewater Treatment Plants, industrial units ant other types of activities which discharges only urban wastewater. The significant point pollution sources are located along the coastal area: the industrial sources discarges in the northern and southern part of coastal waters and the urban sources are equaly spread along the costal waters shore. Another transport way of the nutrients into the Black Sea is represented by the Danube-Black Sea Channal, through its both branches. The CBO5 load represents an average load discharged between 2007-2011 into the marine environment.
The CBO5 load was calculated taking into consideration the point pollution sources identified as being significant, according to WFD and CIS Guidance document no. 3 on Analysis of Pressures and Impacts.Those are represented by the Urban Wastewater Treatment Plants, industrial units ant other types of activities which discharges only urban wastewater. The significant point pollution sources are located along the coastal area: the industrial sources discarges in the northern and southern part of coastal waters and the urban sources are equaly spread along the costal waters shore. Another transport way of the nutrients into the Black Sea is represented by the Danube-Black Sea Channal, through its both branches. The CBO5 load represents an average load discharged between 2007-2011 into the marine environment.
O2 concentration was determined in the water column. Data is from national monitoring network. The mean annual concentrations for the studied period is coresponding to the good status, according to the ,,Studies on the development of classification and comprehensive assessment of the status of surface waters (transitional waters and coastal waters) as required by the Water Framework Directive 2000/60/EC on the basis of biological, chemical and hydromorphological ", developed by the National Institute for Marine Research and Development ”Grigore Antipa” from Constanta. Is noted an improvement ​​in 2008-2010.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
Input load
Unknown_NotAssessed
362,873
362,873
362,873
Unknown_NotAssessed
13,65
Unknown_NotAssessed
1251,613
1251,613
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Load unit
tones/year
tones/year
tones/year
tones/year
tones/year
tones/year
Confidence
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Non related GES component
Non related GES component
Trends (recent)
Increasing
Stable
Stable
Stable
Increasing
Decreasing
Decreasing
Decreasing
Decreasing
Decreasing
Trends (future)
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Description (activities)
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
The main pollution sources located in the assessment area are the waste water treatment plants from agglomerations, industrial units and other activities. The waste water treatment plants receives urban wastewater, industrial wastewater and partly rain water. They serve the coastal villages and resorts in the area. In recent years, the type of waste water is mainly domestic wastewater because of industrial activity decreasing. The main parameter that excedeed the limits provided by current legislation are CBO5, CCO-Cr and NH4. Industrial units discharges treates urban wastewater and industrial wastewater. In rare cases CBO5, CCO-Cr, NH4, total N and total P exced the limits according to the legislation.
Activity type
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
Information gaps
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.

marine waters from 1nm to shelf waters (50m isobath), between Sulina - Vama Veche transects

GES component
5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)
D5C1 Nutrient concentrations (5.1, 5.1.1)
D5C1 Nutrient concentrations (5.1, 5.1.1)
Feature
LevelPressureOverall
LevelPressureNLoad
LevelPressureNConcentration
LevelPressurePLoad
LevelPressurePConcentration
LevelPressureOLoad
LevelPressureOConcentration
ImpactPressureWaterColumn
ImpactPressureSeabedHabitats
Assessment Topic
NutrientsOrganicEnrichment5_1
NutrientsNitrogen5_1
NutrientsPhosphorus5_1
NutrientsEnrichmentWaterColumn5_2or5_3
Element
MarineShelf
ShallMxdSed
Element 2
not assessed
not assessed
ThresholdValue
Threshold value/Value unit
Proportion threshold value
Status of criteria/indicator
Descriptive
Descriptive
Descriptive
Descriptive
Status trend
Unknown_NotAssessed
Declining
Improving
Unknown_NotAssessed
Status confidence
Moderate
Moderate
Moderate
Moderate
Description (status of criteria/indicator)
TOC (N=350) ranges within 0.58-9.12mg/L, 87% values in the interval 2.0-6.0mg/L. The highest means are found in the central area (characterized by the highest variability, too) followed by the Southern part.
DIN concentrations, N=1536, range within 1.14-160.04µM, 90.8% up to 20.0µM. The highest means are from Northern part, under the Danube’s influence, all the year.
DIP concentrations, N=1529, ranged within 0.01-16.50 µM, 93% up to 0.05 µM. The extreme values, >4.00 µM, are seasonally, on restricted area, in the influence zone of Constanţa and Mangalia.
DIN-The water column has two distinct layers delimited, any season by the 2.0µM isoline, at 25m approx. depth. Long-term (1980-2011, N=3914), is generally observed the decreasing of DIN means, up to comparable values from 1991-1992.
Limitations
Assessment period
1980-2011
1980-2011
1980-2011
1980-2011
1980-2011
1980-2011
1980-2011
1980-2011
1980-2011
Description
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
5.1DIP concentrations, N=1529, ranged within 0.01-16.50 µM, 93% up to 0.05 µM. The extreme values, >4.00 µM, are seasonally, on restricted area, in the influence zone of Constanţa and Mangalia. The means are homogenous and don’t allow distinction between fluvial and coastal sources. In spring, the concentrations decrease, being the lowest throughout the year due to phytoplanktonic consumption. In summer, the fluvial input becomes significant, but with concentrations in the natural variability. The DIP vertical variation is influenced by the biological and physical processes. The water column has two distinct layers delimited any season by the 0.2µM isoline. We find the maximum concentration in winter. Than, the uptake of the phytoplankton during spring bloom lead to minimum concentrations. End of spring is characterized by increasing gradient with depth, with maximum concentrations at 50m. In autumn, these values are not found, but the gradient is evident in a lower range. The vertical distribution is generally characterized by two maxima: the smaller one in the 0-20m layer and other at the interface water-sediment. Long-term (1964-2011, N=6964) is observed the DIP concentrations decrease up to comparable values with 60’s, reference period for the good quality of the sea waters.
5.1DIN concentrations, N=1536, range within 1.14-160.04µM, 90.8% up to 20.0µM. The highest means are from Northern part, under the Danube’s influence, all the year. DIN input is more outlined in spring and autumn, with the increased precipitations. This input is reduced due to the biological consumption from spring, still limited by phosphorus, and, in summer, the gradient decreases from North to South. In winter, the means are homogenous and low along the entire coast. The water column has two distinct layers delimited, any season by the 2.0µM isoline, at 25m approx. depth. The highest values are from spring, in the superior layer, both due to fluvial and coastal input and the seasonal thermocline delineation. The biological consumption during spring moved the maximum, early summer, at 10-30m instead of surface. The end of summer is characterized by the regeneration interruption by a second bloom leading to minimum concentrations, whole water column. In November, due to the breaking thermocline and increase of the input from land the DIN regeneration starts and continues during winter. Long-term (1980-2011, N=3914), is generally observed the decreasing of DIN means, up to comparable values from 1991-1992, when the eutrophication intensity starts to decrease. Nowadays, DIN values are slightly increasing than the end of 90’s when minimum was observed.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
5.1 TOC (N=350) ranges within 0.58-9.12mg/L, 87% values in the interval 2.0-6.0mg/L. The highest means are found in the central area (characterized by the highest variability, too) followed by the Southern part. The seasonal variability is influenced by the internal production and anthropogenic input. The TOC from Romanian Black Sea waters is generally provided by the internal production, confirmed by TOC increases in post-algal blooms periods, confirmed by significant correlation with chlorophyll a concentrations (N=13, r=-0,54). In summer, the increasing gradient is outlined from coast to off-shore. In autumn, the surface waters are the most depleted in TOC. The inventory regenerates due to more precipitations from spring and autumn. The water column is most homogenous in winter, due to more mixing water masses. In spring, are distinguished two layers corresponding with nutrients maxima: at 0-10m and 40-50m depths. In the intermediate layer, 10-40m, the lowest concentrations are still evident in summer even if the magnitude is not the same with other seasons. The high bottom concentrations contribute to sedimentation and, sometimes, to oxygen depletion due to decomposition. In autumn, TOC concentrations are lowest throughout the year in the layer 10-20m. Annually, TOC means oscillated within 3.456-5.535mg/L without any identified trend.
In general, nutrient concentrations in seawater are significantly higher near major sources of pollution from land. Extreme values measured in the waters near the shore are seasonal, highest in summer, that cause an increased variability in these areas. Inorganic phosphorus concentrations are higher in winter in front of the Danube’s mouths. In the hot season, from spring to autumn, maximum concentrations are measured near Constanta South WWTP. These concentrations are no longer encountered in open sea area, decreasing 5-6 times along 20m and 30m isobaths, where there is noticed a slight descending gradient from the river mouths area to the southern littoral, stronger in summer and autumn. Comparative study of concentrations near sources of pollution and off-shore highlights the importance of pollution sources for inorganic nitrogen budget. Thus, the highest concentrations are recorded at the mouths of the Danube and near Constanta South WWTP. Unlike Constance area, much larger flow of the Danube enriches even open sea area of northern littoral, where in winter and spring, along with increasing rainfall, is characterized by maximum concentrations. Higher nutrient concentrations near sources of pollution from land provide seasonally a ratio N/P close to the optimum value, 16, in respective areas, which favors the development of phytoplankton communities. With decreasing DIP concentrations it becomes limiting for phytoplankton development, limitation which increases with distance from shore, open sea area. Phytoplankton is the first link in the chain of transformations of matter in aquatic basins. Input of nutrients from land-based sources has nutritional effect on phytoplankton community, especially in summer, when the water temperature rises. Biological activity and transport of water masses cause the propagation of land-based input effect beyond 5m isobath, so that the maximum density and biomass of phytoplankton are found further from the shore, along 20m and 30m isobaths, in front of Danube mouths, where nutrient concentrations are generally higher. So, it reinforces the role of river input in the North Western Black Sea (Danube, Dniester, etc). The only bloom over 10 million cells/ L, during 2006-2011, was in the Constanta Sud (September 2010) and was dominated by diatoms in proportion of 99.8%. The only significant difference between the two areas was recorded for densities for other groups than diatoms and dinoflagellates, that in areas under human influence are on average 2.6 times higher than densities recorded offshore. In both cases the highest values were determined near the mouths of the Danube. Surface waters are generally well oxygenated due to exchange at the air-water interface and photosynthetic oxygen production. Extreme event during the studied period, hypoxia is found exclusively in the hot season and is episodic, so at the Romanian Black Sea coast there are no permanent hypoxic areas, the phenomenon being more influenced by climatic factors than biological ones.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
Input load
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Load unit
tones/year
tones/year
tones/year
Confidence
Non related GES component
Moderate
Moderate
Non related GES component
Non related GES component
Non related GES component
Moderate
Non related GES component
Non related GES component
Trends (recent)
Decreasing
Increasing
Unknown_NotAssessed
Trends (future)
Unknown_NotAssessed
Be stable
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Description (activities)
not assessed
not assessed
not assessed
not assessed
not assessed
not assessed
not assessed
not assessed
not assessed
Activity type
  • NotReported
  • NotReported
  • NotReported
  • NotReported
  • NotReported
  • NotReported
  • NotReported
  • NotReported
  • NotReported
Information gaps
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.

Chilia - Periboina

GES component
D5C1 Nutrient concentrations (5.1, 5.1.1)
D5C1 Nutrient concentrations (5.1, 5.1.1)
D5C1 Nutrient concentrations (5.1, 5.1.1)
D5C1 Nutrient concentrations (5.1, 5.1.1)
D5C1 Nutrient concentrations (5.1, 5.1.1)
D5C1 Nutrient concentrations (5.1, 5.1.1)
Feature
LevelPressureOverall
LevelPressureNLoad
LevelPressureNLoad
LevelPressureNLoad
LevelPressureNConcentration
LevelPressurePLoad
LevelPressurePConcentration
LevelPressureOLoad
LevelPressureOLoad
LevelPressureOConcentration
ImpactPressureWaterColumn
ImpactPressureSeabedHabitats
Assessment Topic
NutrientsNitrogen5_1
NutrientsNitrogen5_1
NutrientsNitrogen5_1
NutrientsPhosphorus5_1
NutrientsOrganicMatter5_1
NutrientsOrganicMatter5_1
Element
NotRelevant
NotRelevant
Element 2
not assessed
not assessed
ThresholdValue
0,03
0,1
1,5
0,03
6
6,2
Threshold value/Value unit
mg/l N-NO2
mg/l N-NH4
mg/l N-NO3
mg/l P-PO4
mg/l BOD5
mg/l O2
Proportion threshold value
0
39
0
0
0
0
Status of criteria/indicator
Good
Good
Good
Good
Good
Good
Status trend
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Status confidence
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Description (status of criteria/indicator)
Limitations
The DIN (dissolved inorganic nitrogen) concentration represents the sum of oxidized forms nitrate and nitrite concentrations and of reduced form, ammonium. The future trend can not be determined because the concentration of these forms of nitrogen in the water column is influenced by several factors: pollution from land based sources, intake tributaries, rainfall, biological activities and physicochemical phenomena of the ecosystem.
According to the scenarios elaborated within the Danube River Basin District management Plan, the future trend (2015) for nutrients is decreasing, but cannot be assess at parameter level.
According to the scenarios elaborated within the Danube River Basin District management Plan, the future trend (2015) for nutrients is decreasing, but cannot be assess at parameter level.
According to the scenarios elaborated within the Danube River Basin District management Plan, the future trend (2015) for nutrients is decreasing, but cannot be assess at parameter level.
The future trends can not be determined because the concentration of N-NO3 in the water column is influenced by several factors: pollution from land based sources, intake tributaries, rainfall, biological activities and physicochemical phenomena of the ecosystem.
According to the scenarios elaborated within the Danube River Basin District management Plan, the future trend (2015) for nutrients is decreasing, but cannot be assess at parameter level.
The future trends can not be determined because the concentration of P-PO4 in the water column is influenced by several factors: pollution from land based sources, intake tributaries, rainfall, biological activities and physicochemical phenomena of the ecosystem.
According to the scenarios elaborated within the Danube River Basin District Management Plan, the future trend (2015) for CBO5 is decreasing.
According to the scenarios elaborated within the Danube River Basin District Management Plan, the future trend (2015) for CBO5 is decreasing.
The future trends can not be established because the oxygen regime variability depends on many factors: the currents and winds, water temperature, intake tributaries, various biological and chemical processes in water.
not assessed
not assessed
Assessment period
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
2007-2011
Description
Dissolved inorganic nitrogen content of marine transitional waters of the Black Sea, is influenced by Danube intake. The water column DIN seasonal variation is due to biological and physico-chemical phenomena in the marine ecosystem. During the analyzed period were recorded lower values ​​in 2007-2008, the highest value recorded was in 2011.
The N-NO3 load was calculated taking into consideration the load trasported only by the Danube -River. The Danube River discharges into the Black Sea through its three branches, in the northern part of the transitional waters. The N-NO3 load represents an annual average load for the 2006-2010 period, from the Reni TNMN sampling point.
The N-NO3 load was calculated taking into consideration the load trasported only by the Danube -River. The Danube River discharges into the Black Sea through its three branches, in the northern part of the transitional waters. The N-NO3 load represents an annual average load for the 2006-2010 period, from the Reni TNMN sampling point.
The N-NO3 load was calculated taking into consideration the load trasported only by the Danube -River. The Danube River discharges into the Black Sea through its three branches, in the northern part of the transitional waters. The N-NO3 load represents an annual average load for the 2006-2010 period, from the Reni TNMN sampling point.
N-NO3 concentration was determined in the water column. Data from national monitoring network. The mean annual concentrations for the studied period is coresponding to the reference state, according to the ,,Studies on the development of classification and comprehensive assessment of the status of surface waters (transitional waters and coastal waters) as required by the Water Framework Directive 2000/60/EC on the basis of biological, chemical and hydromorphological ", developed by the National Institute for Marine Research and Development ”Grigore Antipa” from Constanta. Showing a slight increase in 2011.
The P-PO4 load was calculated taking into consideration the load trasported only by the Danube -River. The P-PO4 load represents an annual average load for the 2006-2010 period, from the Reni TNMN sampling point.
P-PO4 concentration was determined in the water column. Data from national monitoring network. The mean annual concentrations for the studied period is coresponding to the reference state, according to the ,,Studies on the development of classification and comprehensive assessment of the status of surface waters (transitional waters and coastal waters) as required by the Water Framework Directive 2000/60/EC on the basis of biological, chemical and hydromorphological ", developed by the National Institute for Marine Research and Development ”Grigore Antipa” from Constanta. Showing a slight increase in 2011.
The CBO5 load was calculated taking into consideration the load trasported only by the Danube -River. The CBO5 load represents an annual average load for the 2006-2010 period, from the Reni TNMN sampling point.
The CBO5 load was calculated taking into consideration the load trasported only by the Danube -River. The CBO5 load represents an annual average load for the 2006-2010 period, from the Reni TNMN sampling point.
O2 concentration was determined in the water column. Data is from national monitoring network. The mean annual concentrations for 2008 and 2010 period is coresponding to the reference state, according to the ,,Studies on the development of classification and comprehensive assessment of the status of surface waters (transitional waters and coastal waters) as required by the Water Framework Directive 2000/60/EC on the basis of biological, chemical and hydromorphological ", developed by the National Institute for Marine Research and Development ”Grigore Antipa” from Constanta. For 2007, 2009 and 2011 is corresponding to good status according to the same study.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
There were insufficient data. The appropriate date will be provided in the second cycle of the MSFD reporting.
Input load
Unknown_NotAssessed
367972
367972
367972
Unknown_NotAssessed
8222,8
Unknown_NotAssessed
404597,8
404597,8
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Load unit
tones/year
tones/year
tones/year
tones/year
tones/year
tones/year
Confidence
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Moderate
Non related GES component
Non related GES component
Trends (recent)
Increasing
Increasing
Increasing
Increasing
Increasing
Increasing
Increasing
Decreasing
Decreasing
Increasing
Trends (future)
Unknown_NotAssessed
NotReported
NotReported
NotReported
Unknown_NotAssessed
Unknown_NotAssessed
Unknown_NotAssessed
Decrease
Decrease
Unknown_NotAssessed
Description (activities)
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
The main pollution source is represented by the Danube river which discharge a large amount of water into the Black Sea. The Danube river collects and transport to the Black Sea the pollutants from his entire river basin. The main pollution sources within the Danube river basin are the urban waste water treatment plants, industrial units, agriculture and other type of activities.
Activity type
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
  • Industry
  • NotReported
  • Urban
Information gaps
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.
There are no threshold values according to WFD, for CCO-, P total and N total.