According to the data of the period of 2012-2017, the average summer (06-09 months) TN concentration (0.411 mg N / l) in coastal waters (BAL-LT-AA-01) always exceeded the GES value (0.25 mg N / l), except in 2012. The mean summer (06-09 months) TP concentration was 0.022 ± 0.016 mg P / l, corresponded to the GES value (0.026 mg P / l) and was lower than in the previous MSFD I assessment period 2006-2011 (0.035 ± 0.016 mg P / l). l). However, the TN GES value was not reached in all, but only in 75% of the research stations, therefore the condition according to TP is not good. Average warm period chlorophyll-a concentration in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 5.82 ± 3.74 μg / l and showed poor environmental status. A similar (5.24 ± 3.51 μg / l) average warm-period chlorophyll-a concentration was determined in 2006-2011. period. Average warm period Secchi disk depth in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 3.40 ± 0.95 m during the period and showed poor environmental condition. A slightly higher (3.94 ± 0.62 m) average warm-up Secchi disk depth was found in 2006-2011. period. The maximum depth of the red alga Furcellaria lumbricalis habitat in coastal waters was up to 15 m. The EQS obtained was 0.93, which corresponds to a very good ecological status. The latter has not changed since 2013. The average value of the Benthic Quality Index (BQI) in coastal waters (BAL-LT-AA-01) was 3.7 and indicated good environmental status (GAB> 3.2). In summary, of the 6 indicators used to assess eutrophication in coastal waters (BAL-LT-AA-01), two (F. lumbricalis depth of distribution and BQI index) reached GAB values. By integrating indicators at the level of criteria and applying the OOAO rule, the sea area in 2012-2017. did not achieve good environmental status.

According to the data of the period of 2012-2017, the average summer (06-09 months) TN concentration (0.411 mg N / l) in coastal waters (BAL-LT-AA-01) always exceeded the GES value (0.25 mg N / l), except in 2012. The mean summer (06-09 months) TP concentration was 0.022 ± 0.016 mg P / l, corresponded to the GES value (0.026 mg P / l) and was lower than in the previous MSFD I assessment period 2006-2011 (0.035 ± 0.016 mg P / l). l). However, the TN GES value was not reached in all, but only in 75% of the research stations, therefore the condition according to TP is not good. Average warm period chlorophyll-a concentration in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 5.82 ± 3.74 μg / l and showed poor environmental status. A similar (5.24 ± 3.51 μg / l) average warm-period chlorophyll-a concentration was determined in 2006-2011. period. Average warm period Secchi disk depth in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 3.40 ± 0.95 m during the period and showed poor environmental condition. A slightly higher (3.94 ± 0.62 m) average warm-up Secchi disk depth was found in 2006-2011. period. The maximum depth of the red alga Furcellaria lumbricalis habitat in coastal waters was up to 15 m. The EQS obtained was 0.93, which corresponds to a very good ecological status. The latter has not changed since 2013. The average value of the Benthic Quality Index (BQI) in coastal waters (BAL-LT-AA-01) was 3.7 and indicated good environmental status (GAB> 3.2). In summary, of the 6 indicators used to assess eutrophication in coastal waters (BAL-LT-AA-01), two (F. lumbricalis depth of distribution and BQI index) reached GAB values. By integrating indicators at the level of criteria and applying the OOAO rule, the sea area in 2012-2017. did not achieve good environmental status.

According to the data of the period of 2012-2017, the average summer (06-09 months) TN concentration (0.411 mg N / l) in coastal waters (BAL-LT-AA-01) always exceeded the GES value (0.25 mg N / l), except in 2012. The mean summer (06-09 months) TP concentration was 0.022 ± 0.016 mg P / l, corresponded to the GES value (0.026 mg P / l) and was lower than in the previous MSFD I assessment period 2006-2011 (0.035 ± 0.016 mg P / l). l). However, the TN GES value was not reached in all, but only in 75% of the research stations, therefore the condition according to TP is not good. Average warm period chlorophyll-a concentration in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 5.82 ± 3.74 μg / l and showed poor environmental status. A similar (5.24 ± 3.51 μg / l) average warm-period chlorophyll-a concentration was determined in 2006-2011. period. Average warm period Secchi disk depth in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 3.40 ± 0.95 m during the period and showed poor environmental condition. A slightly higher (3.94 ± 0.62 m) average warm-up Secchi disk depth was found in 2006-2011. period. The maximum depth of the red alga Furcellaria lumbricalis habitat in coastal waters was up to 15 m. The EQS obtained was 0.93, which corresponds to a very good ecological status. The latter has not changed since 2013. The average value of the Benthic Quality Index (BQI) in coastal waters (BAL-LT-AA-01) was 3.7 and indicated good environmental status (GAB> 3.2). In summary, of the 6 indicators used to assess eutrophication in coastal waters (BAL-LT-AA-01), two (F. lumbricalis depth of distribution and BQI index) reached GAB values. By integrating indicators at the level of criteria and applying the OOAO rule, the sea area in 2012-2017. did not achieve good environmental status.

According to the data of the period of 2012-2017, the average summer (06-09 months) TN concentration (0.411 mg N / l) in coastal waters (BAL-LT-AA-01) always exceeded the GES value (0.25 mg N / l), except in 2012. The mean summer (06-09 months) TP concentration was 0.022 ± 0.016 mg P / l, corresponded to the GES value (0.026 mg P / l) and was lower than in the previous MSFD I assessment period 2006-2011 (0.035 ± 0.016 mg P / l). l). However, the TN GES value was not reached in all, but only in 75% of the research stations, therefore the condition according to TP is not good. Average warm period chlorophyll-a concentration in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 5.82 ± 3.74 μg / l and showed poor environmental status. A similar (5.24 ± 3.51 μg / l) average warm-period chlorophyll-a concentration was determined in 2006-2011. period. Average warm period Secchi disk depth in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 3.40 ± 0.95 m during the period and showed poor environmental condition. A slightly higher (3.94 ± 0.62 m) average warm-up Secchi disk depth was found in 2006-2011. period. The maximum depth of the red alga Furcellaria lumbricalis habitat in coastal waters was up to 15 m. The EQS obtained was 0.93, which corresponds to a very good ecological status. The latter has not changed since 2013. The average value of the Benthic Quality Index (BQI) in coastal waters (BAL-LT-AA-01) was 3.7 and indicated good environmental status (GAB> 3.2). In summary, of the 6 indicators used to assess eutrophication in coastal waters (BAL-LT-AA-01), two (F. lumbricalis depth of distribution and BQI index) reached GAB values. By integrating indicators at the level of criteria and applying the OOAO rule, the sea area in 2012-2017. did not achieve good environmental status.

According to the data of the period of 2012-2017, the average summer (06-09 months) TN concentration (0.411 mg N / l) in coastal waters (BAL-LT-AA-01) always exceeded the GES value (0.25 mg N / l), except in 2012. The mean summer (06-09 months) TP concentration was 0.022 ± 0.016 mg P / l, corresponded to the GES value (0.026 mg P / l) and was lower than in the previous MSFD I assessment period 2006-2011 (0.035 ± 0.016 mg P / l). l). However, the TN GES value was not reached in all, but only in 75% of the research stations, therefore the condition according to TP is not good. Average warm period chlorophyll-a concentration in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 5.82 ± 3.74 μg / l and showed poor environmental status. A similar (5.24 ± 3.51 μg / l) average warm-period chlorophyll-a concentration was determined in 2006-2011. period. Average warm period Secchi disk depth in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 3.40 ± 0.95 m during the period and showed poor environmental condition. A slightly higher (3.94 ± 0.62 m) average warm-up Secchi disk depth was found in 2006-2011. period. The maximum depth of the red alga Furcellaria lumbricalis habitat in coastal waters was up to 15 m. The EQS obtained was 0.93, which corresponds to a very good ecological status. The latter has not changed since 2013. The average value of the Benthic Quality Index (BQI) in coastal waters (BAL-LT-AA-01) was 3.7 and indicated good environmental status (GAB> 3.2). In summary, of the 6 indicators used to assess eutrophication in coastal waters (BAL-LT-AA-01), two (F. lumbricalis depth of distribution and BQI index) reached GAB values. By integrating indicators at the level of criteria and applying the OOAO rule, the sea area in 2012-2017. did not achieve good environmental status.

According to the data of the period of 2012-2017, the average summer (06-09 months) TN concentration (0.411 mg N / l) in coastal waters (BAL-LT-AA-01) always exceeded the GES value (0.25 mg N / l), except in 2012. The mean summer (06-09 months) TP concentration was 0.022 ± 0.016 mg P / l, corresponded to the GES value (0.026 mg P / l) and was lower than in the previous MSFD I assessment period 2006-2011 (0.035 ± 0.016 mg P / l). l). However, the TN GES value was not reached in all, but only in 75% of the research stations, therefore the condition according to TP is not good. Average warm period chlorophyll-a concentration in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 5.82 ± 3.74 μg / l and showed poor environmental status. A similar (5.24 ± 3.51 μg / l) average warm-period chlorophyll-a concentration was determined in 2006-2011. period. Average warm period Secchi disk depth in the coastal zone (BAL-LT-AA-01) in 2012-2017. was 3.40 ± 0.95 m during the period and showed poor environmental condition. A slightly higher (3.94 ± 0.62 m) average warm-up Secchi disk depth was found in 2006-2011. period. The maximum depth of the red alga Furcellaria lumbricalis habitat in coastal waters was up to 15 m. The EQS obtained was 0.93, which corresponds to a very good ecological status. The latter has not changed since 2013. The average value of the Benthic Quality Index (BQI) in coastal waters (BAL-LT-AA-01) was 3.7 and indicated good environmental status (GAB> 3.2). In summary, of the 6 indicators used to assess eutrophication in coastal waters (BAL-LT-AA-01), two (F. lumbricalis depth of distribution and BQI index) reached GAB values. By integrating indicators at the level of criteria and applying the OOAO rule, the sea area in 2012-2017. did not achieve good environmental status.

Between 2012 and 2017, the average summer TN concentration (between 06 and 09 months) in the area of distribution of Curonian Lagoon waters in the Baltic Sea (BAL-LT-AA-02) was twice as high as the GEC value (06,09 mg N/l).Compared to the period 2006-2011, the TN concentration increased on average between 2012 and 2017 by 12 %, from 0.48 ± 0.14 to 0.54 ± 0.18 mg N/l. The average summer (between 06 and 09 months) TP concentration (0.033 mg P/l) exceeded the GAB threshold (0.026 mg P/l). During the assessment period the TP concentration was lower than in the period 2006-2011 (0,041± 0,02 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a at sea (BAL-LT-AA-02) in the warm period (06 to 09 months) was 7.42 μg/l below the GEC value. Good environmental status was observed only in 2014 and 2017. During the period 2006-2011, the average value of the indicator was also below good status and similar to 7.70 μg/l. In the area of distribution of the Curonian Lagoon waters in the Baltic Sea, saltwater and freshwater of the Curonian Lagoon are mixed. Therefore, the GEC for TN, TP and chlorophyll-a is based on the salinity of the water (>4 PSU (applies to coastal criteria), 2-4 PSU, <2 psu (applies to the indicator criteria for the northern part of the Curonian Lagoon)). During the study period, the average salinity was above PSU 4 and the GEC values of the coastal zone were used for the assessment of the status. During the period covered by the study, the maximum depth of the production area of the branched whale Furcellaria lumbricalis in the waters of BAL-LT-AA-02 was until 10. The ecological quality ratio (EQF) reached 0.71, which corresponds to the average ecological status of transitional waters, i.e. below good. Between 2012 and 2017, the average value of the Bentos Quality Index (BQI) for intermediate waters (BAL-LT-AA-02) was 3.3, indicating good environmental status (GAB > 3.2). However, good status is recorded on the basis of the average BQI value for one of the two monitoring stations (50 %) and therefore the area is below good status. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Between 2012 and 2017, the average summer TN concentration (between 06 and 09 months) in the area of distribution of Curonian Lagoon waters in the Baltic Sea (BAL-LT-AA-02) was twice as high as the GEC value (06,09 mg N/l).Compared to the period 2006-2011, the TN concentration increased on average between 2012 and 2017 by 12 %, from 0.48 ± 0.14 to 0.54 ± 0.18 mg N/l. The average summer (between 06 and 09 months) TP concentration (0.033 mg P/l) exceeded the GAB threshold (0.026 mg P/l). During the assessment period the TP concentration was lower than in the period 2006-2011 (0,041± 0,02 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a at sea (BAL-LT-AA-02) in the warm period (06 to 09 months) was 7.42 μg/l below the GEC value. Good environmental status was observed only in 2014 and 2017. During the period 2006-2011, the average value of the indicator was also below good status and similar to 7.70 μg/l. In the area of distribution of the Curonian Lagoon waters in the Baltic Sea, saltwater and freshwater of the Curonian Lagoon are mixed. Therefore, the GEC for TN, TP and chlorophyll-a is based on the salinity of the water (>4 PSU (applies to coastal criteria), 2-4 PSU, <2 psu (applies to the indicator criteria for the northern part of the Curonian Lagoon)). During the study period, the average salinity was above PSU 4 and the GEC values of the coastal zone were used for the assessment of the status. During the period covered by the study, the maximum depth of the production area of the branched whale Furcellaria lumbricalis in the waters of BAL-LT-AA-02 was until 10. The ecological quality ratio (EQF) reached 0.71, which corresponds to the average ecological status of transitional waters, i.e. below good. Between 2012 and 2017, the average value of the Bentos Quality Index (BQI) for intermediate waters (BAL-LT-AA-02) was 3.3, indicating good environmental status (GAB > 3.2). However, good status is recorded on the basis of the average BQI value for one of the two monitoring stations (50 %) and therefore the area is below good status. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Between 2012 and 2017, the average summer TN concentration (between 06 and 09 months) in the area of distribution of Curonian Lagoon waters in the Baltic Sea (BAL-LT-AA-02) was twice as high as the GEC value (06,09 mg N/l).Compared to the period 2006-2011, the TN concentration increased on average between 2012 and 2017 by 12 %, from 0.48 ± 0.14 to 0.54 ± 0.18 mg N/l. The average summer (between 06 and 09 months) TP concentration (0.033 mg P/l) exceeded the GAB threshold (0.026 mg P/l). During the assessment period the TP concentration was lower than in the period 2006-2011 (0,041± 0,02 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a at sea (BAL-LT-AA-02) in the warm period (06 to 09 months) was 7.42 μg/l below the GEC value. Good environmental status was observed only in 2014 and 2017. During the period 2006-2011, the average value of the indicator was also below good status and similar to 7.70 μg/l. In the area of distribution of the Curonian Lagoon waters in the Baltic Sea, saltwater and freshwater of the Curonian Lagoon are mixed. Therefore, the GEC for TN, TP and chlorophyll-a is based on the salinity of the water (>4 PSU (applies to coastal criteria), 2-4 PSU, <2 psu (applies to the indicator criteria for the northern part of the Curonian Lagoon)). During the study period, the average salinity was above PSU 4 and the GEC values of the coastal zone were used for the assessment of the status. During the period covered by the study, the maximum depth of the production area of the branched whale Furcellaria lumbricalis in the waters of BAL-LT-AA-02 was until 10. The ecological quality ratio (EQF) reached 0.71, which corresponds to the average ecological status of transitional waters, i.e. below good. Between 2012 and 2017, the average value of the Bentos Quality Index (BQI) for intermediate waters (BAL-LT-AA-02) was 3.3, indicating good environmental status (GAB > 3.2). However, good status is recorded on the basis of the average BQI value for one of the two monitoring stations (50 %) and therefore the area is below good status. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Between 2012 and 2017, the average summer TN concentration (between 06 and 09 months) in the area of distribution of Curonian Lagoon waters in the Baltic Sea (BAL-LT-AA-02) was twice as high as the GEC value (06,09 mg N/l).Compared to the period 2006-2011, the TN concentration increased on average between 2012 and 2017 by 12 %, from 0.48 ± 0.14 to 0.54 ± 0.18 mg N/l. The average summer (between 06 and 09 months) TP concentration (0.033 mg P/l) exceeded the GAB threshold (0.026 mg P/l). During the assessment period the TP concentration was lower than in the period 2006-2011 (0,041± 0,02 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a at sea (BAL-LT-AA-02) in the warm period (06 to 09 months) was 7.42 μg/l below the GEC value. Good environmental status was observed only in 2014 and 2017. During the period 2006-2011, the average value of the indicator was also below good status and similar to 7.70 μg/l. In the area of distribution of the Curonian Lagoon waters in the Baltic Sea, saltwater and freshwater of the Curonian Lagoon are mixed. Therefore, the GEC for TN, TP and chlorophyll-a is based on the salinity of the water (>4 PSU (applies to coastal criteria), 2-4 PSU, <2 psu (applies to the indicator criteria for the northern part of the Curonian Lagoon)). During the study period, the average salinity was above PSU 4 and the GEC values of the coastal zone were used for the assessment of the status. During the period covered by the study, the maximum depth of the production area of the branched whale Furcellaria lumbricalis in the waters of BAL-LT-AA-02 was until 10. The ecological quality ratio (EQF) reached 0.71, which corresponds to the average ecological status of transitional waters, i.e. below good. Between 2012 and 2017, the average value of the Bentos Quality Index (BQI) for intermediate waters (BAL-LT-AA-02) was 3.3, indicating good environmental status (GAB > 3.2). However, good status is recorded on the basis of the average BQI value for one of the two monitoring stations (50 %) and therefore the area is below good status. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Between 2012 and 2017, the average summer TN concentration (between 06 and 09 months) in the area of distribution of Curonian Lagoon waters in the Baltic Sea (BAL-LT-AA-02) was twice as high as the GEC value (06,09 mg N/l).Compared to the period 2006-2011, the TN concentration increased on average between 2012 and 2017 by 12 %, from 0.48 ± 0.14 to 0.54 ± 0.18 mg N/l. The average summer (between 06 and 09 months) TP concentration (0.033 mg P/l) exceeded the GAB threshold (0.026 mg P/l). During the assessment period the TP concentration was lower than in the period 2006-2011 (0,041± 0,02 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a at sea (BAL-LT-AA-02) in the warm period (06 to 09 months) was 7.42 μg/l below the GEC value. Good environmental status was observed only in 2014 and 2017. During the period 2006-2011, the average value of the indicator was also below good status and similar to 7.70 μg/l. In the area of distribution of the Curonian Lagoon waters in the Baltic Sea, saltwater and freshwater of the Curonian Lagoon are mixed. Therefore, the GEC for TN, TP and chlorophyll-a is based on the salinity of the water (>4 PSU (applies to coastal criteria), 2-4 PSU, <2 psu (applies to the indicator criteria for the northern part of the Curonian Lagoon)). During the study period, the average salinity was above PSU 4 and the GEC values of the coastal zone were used for the assessment of the status. During the period covered by the study, the maximum depth of the production area of the branched whale Furcellaria lumbricalis in the waters of BAL-LT-AA-02 was until 10. The ecological quality ratio (EQF) reached 0.71, which corresponds to the average ecological status of transitional waters, i.e. below good. Between 2012 and 2017, the average value of the Bentos Quality Index (BQI) for intermediate waters (BAL-LT-AA-02) was 3.3, indicating good environmental status (GAB > 3.2). However, good status is recorded on the basis of the average BQI value for one of the two monitoring stations (50 %) and therefore the area is below good status. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Based on data from 2012 to 2017, in the territorial sea (BAL-LT-AA-03), the annual average nitrogen concentration (0,37 mg N/l) was 1,7 times higher than the GES value (0,225 mg N/l). The TN concentration was slightly higher than that observed between 2006 and 2011 (0.35 mg N/l). The average annual concentration of TP varied between 0.016 mg P/l and 0.024 mg P/l, exceeding the GES value (0.014 mg P/l), except for 2014 years. In the period 2012-2017, the average TP concentration was twice as low (0.018 mg P/l) as in 2006-2011 (0.033 mg P/l). The average concentration of dissolved inorganic nitrogen (DIN) in the winter part of BAL-LT-AA-03 was 0.084 mg N/l and the GES (0.04 mg N/l) was twice as high. The concentration of dissolved inorganic phosphorus (DIP) in the winter part of BAL-LT-AA-03 was 0.017 mg P/l and almost twice the GES value (0.01 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a in the warm period in open waters (BAL-LT-AA-03) was 3.55 μg/l below good environmental status (< 1.90 μg/l). The average annual chlorophyll-a concentration (3,35 μg/l) also exceeded the GES value (<0,99 μg/l). The average depth of Secchi during the warm period in open waters (BAL-LT-AA-03) was 5.16 metres below the GEC value (>7 metres). A similar value (5.15 metres) was established for the period 2006-2011. The average annual depth of the Secchi disc was 5.88 metres and was also below the GES value (>8.8 metres). During the period 2012-2017, good status according to BQI mean values was achieved in all high seas waters (subsequently halocolin, about 3000 km²), except for the ground burial zone (23.2 km²). The environment is stable compared to 2006-2011. In summary, of the 9 indicators used to measure eutrophication in high seas (BAL-LT-AA-03), only one (BQI-index) reached the GES value. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Based on data from 2012 to 2017, in the territorial sea (BAL-LT-AA-03), the annual average nitrogen concentration (0,37 mg N/l) was 1,7 times higher than the GES value (0,225 mg N/l). The TN concentration was slightly higher than that observed between 2006 and 2011 (0.35 mg N/l). The average annual concentration of TP varied between 0.016 mg P/l and 0.024 mg P/l, exceeding the GES value (0.014 mg P/l), except for 2014 years. In the period 2012-2017, the average TP concentration was twice as low (0.018 mg P/l) as in 2006-2011 (0.033 mg P/l). The average concentration of dissolved inorganic nitrogen (DIN) in the winter part of BAL-LT-AA-03 was 0.084 mg N/l and the GES (0.04 mg N/l) was twice as high. The concentration of dissolved inorganic phosphorus (DIP) in the winter part of BAL-LT-AA-03 was 0.017 mg P/l and almost twice the GES value (0.01 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a in the warm period in open waters (BAL-LT-AA-03) was 3.55 μg/l below good environmental status (< 1.90 μg/l). The average annual chlorophyll-a concentration (3,35 μg/l) also exceeded the GES value (<0,99 μg/l). The average depth of Secchi during the warm period in open waters (BAL-LT-AA-03) was 5.16 metres below the GEC value (>7 metres). A similar value (5.15 metres) was established for the period 2006-2011. The average annual depth of the Secchi disc was 5.88 metres and was also below the GES value (>8.8 metres). During the period 2012-2017, good status according to BQI mean values was achieved in all high seas waters (subsequently halocolin, about 3000 km²), except for the ground burial zone (23.2 km²). The environment is stable compared to 2006-2011. In summary, of the 9 indicators used to measure eutrophication in high seas (BAL-LT-AA-03), only one (BQI-index) reached the GES value. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Based on data from 2012 to 2017, in the territorial sea (BAL-LT-AA-03), the annual average nitrogen concentration (0,37 mg N/l) was 1,7 times higher than the GES value (0,225 mg N/l). The TN concentration was slightly higher than that observed between 2006 and 2011 (0.35 mg N/l). The average annual concentration of TP varied between 0.016 mg P/l and 0.024 mg P/l, exceeding the GES value (0.014 mg P/l), except for 2014 years. In the period 2012-2017, the average TP concentration was twice as low (0.018 mg P/l) as in 2006-2011 (0.033 mg P/l). The average concentration of dissolved inorganic nitrogen (DIN) in the winter part of BAL-LT-AA-03 was 0.084 mg N/l and the GES (0.04 mg N/l) was twice as high. The concentration of dissolved inorganic phosphorus (DIP) in the winter part of BAL-LT-AA-03 was 0.017 mg P/l and almost twice the GES value (0.01 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a in the warm period in open waters (BAL-LT-AA-03) was 3.55 μg/l below good environmental status (< 1.90 μg/l). The average annual chlorophyll-a concentration (3,35 μg/l) also exceeded the GES value (<0,99 μg/l). The average depth of Secchi during the warm period in open waters (BAL-LT-AA-03) was 5.16 metres below the GEC value (>7 metres). A similar value (5.15 metres) was established for the period 2006-2011. The average annual depth of the Secchi disc was 5.88 metres and was also below the GES value (>8.8 metres). During the period 2012-2017, good status according to BQI mean values was achieved in all high seas waters (subsequently halocolin, about 3000 km²), except for the ground burial zone (23.2 km²). The environment is stable compared to 2006-2011. In summary, of the 9 indicators used to measure eutrophication in high seas (BAL-LT-AA-03), only one (BQI-index) reached the GES value. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Based on data from 2012 to 2017, in the territorial sea (BAL-LT-AA-03), the annual average nitrogen concentration (0,37 mg N/l) was 1,7 times higher than the GES value (0,225 mg N/l). The TN concentration was slightly higher than that observed between 2006 and 2011 (0.35 mg N/l). The average annual concentration of TP varied between 0.016 mg P/l and 0.024 mg P/l, exceeding the GES value (0.014 mg P/l), except for 2014 years. In the period 2012-2017, the average TP concentration was twice as low (0.018 mg P/l) as in 2006-2011 (0.033 mg P/l). The average concentration of dissolved inorganic nitrogen (DIN) in the winter part of BAL-LT-AA-03 was 0.084 mg N/l and the GES (0.04 mg N/l) was twice as high. The concentration of dissolved inorganic phosphorus (DIP) in the winter part of BAL-LT-AA-03 was 0.017 mg P/l and almost twice the GES value (0.01 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a in the warm period in open waters (BAL-LT-AA-03) was 3.55 μg/l below good environmental status (< 1.90 μg/l). The average annual chlorophyll-a concentration (3,35 μg/l) also exceeded the GES value (<0,99 μg/l). The average depth of Secchi during the warm period in open waters (BAL-LT-AA-03) was 5.16 metres below the GEC value (>7 metres). A similar value (5.15 metres) was established for the period 2006-2011. The average annual depth of the Secchi disc was 5.88 metres and was also below the GES value (>8.8 metres). During the period 2012-2017, good status according to BQI mean values was achieved in all high seas waters (subsequently halocolin, about 3000 km²), except for the ground burial zone (23.2 km²). The environment is stable compared to 2006-2011. In summary, of the 9 indicators used to measure eutrophication in high seas (BAL-LT-AA-03), only one (BQI-index) reached the GES value. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Based on data from 2012 to 2017, in the territorial sea (BAL-LT-AA-03), the annual average nitrogen concentration (0,37 mg N/l) was 1,7 times higher than the GES value (0,225 mg N/l). The TN concentration was slightly higher than that observed between 2006 and 2011 (0.35 mg N/l). The average annual concentration of TP varied between 0.016 mg P/l and 0.024 mg P/l, exceeding the GES value (0.014 mg P/l), except for 2014 years. In the period 2012-2017, the average TP concentration was twice as low (0.018 mg P/l) as in 2006-2011 (0.033 mg P/l). The average concentration of dissolved inorganic nitrogen (DIN) in the winter part of BAL-LT-AA-03 was 0.084 mg N/l and the GES (0.04 mg N/l) was twice as high. The concentration of dissolved inorganic phosphorus (DIP) in the winter part of BAL-LT-AA-03 was 0.017 mg P/l and almost twice the GES value (0.01 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a in the warm period in open waters (BAL-LT-AA-03) was 3.55 μg/l below good environmental status (< 1.90 μg/l). The average annual chlorophyll-a concentration (3,35 μg/l) also exceeded the GES value (<0,99 μg/l). The average depth of Secchi during the warm period in open waters (BAL-LT-AA-03) was 5.16 metres below the GEC value (>7 metres). A similar value (5.15 metres) was established for the period 2006-2011. The average annual depth of the Secchi disc was 5.88 metres and was also below the GES value (>8.8 metres). During the period 2012-2017, good status according to BQI mean values was achieved in all high seas waters (subsequently halocolin, about 3000 km²), except for the ground burial zone (23.2 km²). The environment is stable compared to 2006-2011. In summary, of the 9 indicators used to measure eutrophication in high seas (BAL-LT-AA-03), only one (BQI-index) reached the GES value. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Based on data from 2012 to 2017, in the territorial sea (BAL-LT-AA-03), the annual average nitrogen concentration (0,37 mg N/l) was 1,7 times higher than the GES value (0,225 mg N/l). The TN concentration was slightly higher than that observed between 2006 and 2011 (0.35 mg N/l). The average annual concentration of TP varied between 0.016 mg P/l and 0.024 mg P/l, exceeding the GES value (0.014 mg P/l), except for 2014 years. In the period 2012-2017, the average TP concentration was twice as low (0.018 mg P/l) as in 2006-2011 (0.033 mg P/l). The average concentration of dissolved inorganic nitrogen (DIN) in the winter part of BAL-LT-AA-03 was 0.084 mg N/l and the GES (0.04 mg N/l) was twice as high. The concentration of dissolved inorganic phosphorus (DIP) in the winter part of BAL-LT-AA-03 was 0.017 mg P/l and almost twice the GES value (0.01 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a in the warm period in open waters (BAL-LT-AA-03) was 3.55 μg/l below good environmental status (< 1.90 μg/l). The average annual chlorophyll-a concentration (3,35 μg/l) also exceeded the GES value (<0,99 μg/l). The average depth of Secchi during the warm period in open waters (BAL-LT-AA-03) was 5.16 metres below the GEC value (>7 metres). A similar value (5.15 metres) was established for the period 2006-2011. The average annual depth of the Secchi disc was 5.88 metres and was also below the GES value (>8.8 metres). During the period 2012-2017, good status according to BQI mean values was achieved in all high seas waters (subsequently halocolin, about 3000 km²), except for the ground burial zone (23.2 km²). The environment is stable compared to 2006-2011. In summary, of the 9 indicators used to measure eutrophication in high seas (BAL-LT-AA-03), only one (BQI-index) reached the GES value. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Based on data from 2012 to 2017, in the territorial sea (BAL-LT-AA-03), the annual average nitrogen concentration (0,37 mg N/l) was 1,7 times higher than the GES value (0,225 mg N/l). The TN concentration was slightly higher than that observed between 2006 and 2011 (0.35 mg N/l). The average annual concentration of TP varied between 0.016 mg P/l and 0.024 mg P/l, exceeding the GES value (0.014 mg P/l), except for 2014 years. In the period 2012-2017, the average TP concentration was twice as low (0.018 mg P/l) as in 2006-2011 (0.033 mg P/l). The average concentration of dissolved inorganic nitrogen (DIN) in the winter part of BAL-LT-AA-03 was 0.084 mg N/l and the GES (0.04 mg N/l) was twice as high. The concentration of dissolved inorganic phosphorus (DIP) in the winter part of BAL-LT-AA-03 was 0.017 mg P/l and almost twice the GES value (0.01 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a in the warm period in open waters (BAL-LT-AA-03) was 3.55 μg/l below good environmental status (< 1.90 μg/l). The average annual chlorophyll-a concentration (3,35 μg/l) also exceeded the GES value (<0,99 μg/l). The average depth of Secchi during the warm period in open waters (BAL-LT-AA-03) was 5.16 metres below the GEC value (>7 metres). A similar value (5.15 metres) was established for the period 2006-2011. The average annual depth of the Secchi disc was 5.88 metres and was also below the GES value (>8.8 metres). During the period 2012-2017, good status according to BQI mean values was achieved in all high seas waters (subsequently halocolin, about 3000 km²), except for the ground burial zone (23.2 km²). The environment is stable compared to 2006-2011. In summary, of the 9 indicators used to measure eutrophication in high seas (BAL-LT-AA-03), only one (BQI-index) reached the GES value. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Based on data from 2012 to 2017, in the territorial sea (BAL-LT-AA-03), the annual average nitrogen concentration (0,37 mg N/l) was 1,7 times higher than the GES value (0,225 mg N/l). The TN concentration was slightly higher than that observed between 2006 and 2011 (0.35 mg N/l). The average annual concentration of TP varied between 0.016 mg P/l and 0.024 mg P/l, exceeding the GES value (0.014 mg P/l), except for 2014 years. In the period 2012-2017, the average TP concentration was twice as low (0.018 mg P/l) as in 2006-2011 (0.033 mg P/l). The average concentration of dissolved inorganic nitrogen (DIN) in the winter part of BAL-LT-AA-03 was 0.084 mg N/l and the GES (0.04 mg N/l) was twice as high. The concentration of dissolved inorganic phosphorus (DIP) in the winter part of BAL-LT-AA-03 was 0.017 mg P/l and almost twice the GES value (0.01 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a in the warm period in open waters (BAL-LT-AA-03) was 3.55 μg/l below good environmental status (< 1.90 μg/l). The average annual chlorophyll-a concentration (3,35 μg/l) also exceeded the GES value (<0,99 μg/l). The average depth of Secchi during the warm period in open waters (BAL-LT-AA-03) was 5.16 metres below the GEC value (>7 metres). A similar value (5.15 metres) was established for the period 2006-2011. The average annual depth of the Secchi disc was 5.88 metres and was also below the GES value (>8.8 metres). During the period 2012-2017, good status according to BQI mean values was achieved in all high seas waters (subsequently halocolin, about 3000 km²), except for the ground burial zone (23.2 km²). The environment is stable compared to 2006-2011. In summary, of the 9 indicators used to measure eutrophication in high seas (BAL-LT-AA-03), only one (BQI-index) reached the GES value. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.

Based on data from 2012 to 2017, in the territorial sea (BAL-LT-AA-03), the annual average nitrogen concentration (0,37 mg N/l) was 1,7 times higher than the GES value (0,225 mg N/l). The TN concentration was slightly higher than that observed between 2006 and 2011 (0.35 mg N/l). The average annual concentration of TP varied between 0.016 mg P/l and 0.024 mg P/l, exceeding the GES value (0.014 mg P/l), except for 2014 years. In the period 2012-2017, the average TP concentration was twice as low (0.018 mg P/l) as in 2006-2011 (0.033 mg P/l). The average concentration of dissolved inorganic nitrogen (DIN) in the winter part of BAL-LT-AA-03 was 0.084 mg N/l and the GES (0.04 mg N/l) was twice as high. The concentration of dissolved inorganic phosphorus (DIP) in the winter part of BAL-LT-AA-03 was 0.017 mg P/l and almost twice the GES value (0.01 mg P/l). Between 2012 and 2017, the average concentration of chlorophyll-a in the warm period in open waters (BAL-LT-AA-03) was 3.55 μg/l below good environmental status (< 1.90 μg/l). The average annual chlorophyll-a concentration (3,35 μg/l) also exceeded the GES value (<0,99 μg/l). The average depth of Secchi during the warm period in open waters (BAL-LT-AA-03) was 5.16 metres below the GEC value (>7 metres). A similar value (5.15 metres) was established for the period 2006-2011. The average annual depth of the Secchi disc was 5.88 metres and was also below the GES value (>8.8 metres). During the period 2012-2017, good status according to BQI mean values was achieved in all high seas waters (subsequently halocolin, about 3000 km²), except for the ground burial zone (23.2 km²). The environment is stable compared to 2006-2011. In summary, of the 9 indicators used to measure eutrophication in high seas (BAL-LT-AA-03), only one (BQI-index) reached the GES value. By integrating indicators at criterion level and applying the OOAO rule, according to Descriptor D5, the sea area was below good environmental status between 2012 and 2017.