Thresholds for total phosphorus (P) and total nitrogen (N) concentrations in coastal waters set for water management are below: 24 P and 350 N µg L-1 in the Gulf of Finland, 20 P and 325 N µg L-1 in the Gulf of Finland and 23 P in the southwestern archipelago L-1, 20 P and 310 N µg L-1 in the southwestern archipelago, 18 P and 290 N µg L-1 in the southwestern archipelago, 20 P and 315 N µg L-1 in the inland coastal waters and 14 P and 275 N µg in the outer coastal waters of the Bothnian Sea L-1, 17 P and 325 N µg in the Inner Kvarken Archipelago, 13 P and 280 N µg in the outer Kvarken Archipelago, 14 P and 340 N µg in the inner Gulf of Bothnia and 11 P and 315 N µg in the outer Gulf of Bothnia L-1. These apply from July 1st to September 7th. average concentration in 1 m surface water. The eutrophication status is determined by the HELCOM HEAT tool, which first estimates the weighted average of the indicators by indicator group. The overall estimate of the eutrophication status is determined by the indicator group in the weakest state.The eutrophication status is defined by the HELCOMin HEATT tool, which first assesses the weighted average indicators by group of indicators. The overall assessment of the eutrophication situation is determined by the group of the most vulnerable indicators.

The thresholds for the concentrations of the high seas nitrogen (N) and phosphorus (P) laid down in HELCOM in the Gulf of Finland are reduced by 298 µg N L-1 and 17,0 µg P L-1 in the Gulf of Finland, 227 µg N L-1 and 11,8 µg P L-1 in North Sea, 219 µg N L-1 and 8,7 µg P L-1 in the Åland Sea, 220 µg N L-1 and 7,4 µg P L-1 in the Bothnian Sea, 242 µg N L-1 and 7,4 µg P L-1 and 237 µg P L-1 in the Bothnian Sea and 5,6 µg P L-1 in the Bothnian Sea. These relate to the annual mean concentration of between 1 and 10 m in surface water. The eutrophication status is defined by the HELCOMin HEATT tool, which first assesses the weighted average indicators by group of indicators. The overall assessment of the eutrophication situation is determined by the group of the most vulnerable indicators.

The threshold values in the open sea dissolved organic nitrogen (DIN) and phosphorus (DIP) levels set in HELCOM are under-implemented: In the Gulf of Finland, 53,2 µg DIN L-1 and 18,3 µg for DIP L-1, 40,6 µg DIN L-1 and 7,7 µg for DIP L-1, 37,8 µg DIN L-1 and 6,5 µg for DIP L-1, 39,2 µg DIN L-1 and 5,9 µg for DIP L-1, 51,8 µg DIN L-1 and 3,1 µg for DIP L-1 and 72,9 µg for DIP L-1 and 2,2 µg for DIP L-1 in the Bothnian Sea. These relate to the centre value of the Christmas to February 1-10 m in surface water. The eutrophication status is defined by the HELCOMin HEATT tool, which first assesses the weighted average indicators by group of indicators. The overall assessment of the eutrophication situation is determined by the group of the most vulnerable indicators.

Thresholds for chlorophyll concentrations in coastal waters below: 3.5 µg L-1 in the Gulf of Finland, 2.5 µg L-1 in the outer Gulf of Finland, 3.0 µg L-1 in the Southwestern Inland Archipelago, 2.5 µg L-1 in the Southwestern Archipelago 2.3 µg L-1 in the outer archipelago, 2.7 µg L-1 in the inland coastal waters of the Bothnian Sea, 2.1 µg L-1 in the outer coastal waters of the Bothnian Sea, 3.3 µg L-1 in the Kvarken Archipelago, 2.2 µg L-1 in the outer Kvarken Archipelago , 3.3 µg L-1 in the inland coastal waters of the Bothnian Bay and 2.2 µg L-1 in the outer coastal waters of the Bothnian Bay. The eutrophication status is determined by the HELCOM HEAT tool, which first estimates the weighted average of indicators by indicator group. The overall estimate of the eutrophication status is determined by the indicator group in the weakest state.

Thresholds for chlorophyll levels of phytoplankton in HELCOM offshore are below: 2.00 µg L-1 in the Gulf of Finland, 1.65 µg L-1 in the North Sea, 1.5 µg L-1 in the Åland Sea, 1.5 µg L-1 in the Bothnian Sea µg L-1 and 2.00 µg L-1 in the Gulf of Bothnia. The eutrophication status is determined by the HELCOM HEAT tool, which first estimates the weighted average of indicators by indicator group. The overall estimate of the eutrophication status is determined by the indicator group in the weakest state.

The scale and biomass of cyanobacteria fall below the HELCOM agreed threshold values: 0.90 in the Gulf of Finland; North Baltic Sea 0.77; and 0,58 to the Bothnian Sea. The eutrophication status is defined by the HELCOM HEAT tool, which first assesses the weighted average indicators by group of indicators. The overall assessment of the eutrophication situation is determined by the group of the most vulnerable indicators.

TRANSPARENCY The visual depth thresholds set for coastal water management are exceeded in: Inland Gulf Coast 3.5 m, Gulf Outermost 4.4 m, Southwestern Inner Archipelago 3.6m, Southwestern Inner Archipelago 4.6m, Southwestern Inland Archipelago 5 m 3 m, 4.1 m in the outer coastal waters of the Bothnian Sea, 2.3 m in the Inner Kvarken Archipelago, 3.7 m in the Inner Kvarken Archipelago, and 3.3 m in the outer coastal waters of the Bothnian Bay. The eutrophication status is determined by first, the weighted average of the indicators by indicator group. The overall estimate of the eutrophication status is determined by the indicator group in the weakest state.

TRANSPARENCY Offshore visual thresholds laid down in HELCOM are exceeded: 5.5 m in the Gulf of Finland, 7.1 m in the Northern Baltic Sea, 6.9 m in the Åland Sea, 6.8 m in the Kvarken and 5.8 m in the Bothnian Bay. tool, which first estimates the weighted average of the indicators by indicator group. The overall estimate of the eutrophication status is determined by the indicator group in the weakest state.

The concentrations of dissolved oxygen in water bodies in coastal waters do not fall below 4 mg L-1 (monthly mean). The eutrophication status is defined by HELCOM in HEAT tool, which first assesses the weighted average indicators by group of indicators. The overall assessment of the eutrophication situation is determined by the group of the most vulnerable indicators.

The oxygen shortfall in the Baltic Sea must not exceed the values of the oxygen bond index, which is 8,66 in the Gulf of Finland, 8,66 in Northern Baltic Sea, 2,02 in the Åland Islands, 2,02 in the Bothnian Sea and 0,81 in the Bothnian Sea. The eutrophication status is defined by HELCOM in HEAT tool, which first assesses the weighted average indicators by group of indicators. The overall assessment of the eutrophication situation is determined by the group of the most vulnerable indicators.

The lower limit of the bladderwrack zone (5% coverage in 6 m2; ELS values ​​in brackets) is 3.0 / 3.5 m (0.75 / 0.7) (sheltered / open) in the Gulf of Finland, 4.0 / 5 in the outer Gulf of Finland , 0 m (0.73 / 0.77) (sheltered / open), Southwestern Inner Archipelago 3.2 / 4.0 m (0.76 / 0.73) (sheltered / open), Southwestern Archipelago 4.0 / 4 , 5 m (0.73 / 0.75) (sheltered / open), Southwestern Outer Archipelago 5.5 / 6.0 m (0.79 / 0.75) (sheltered / open), Inshore offshore 3.0 / 5.2 m (0.76 / 0.74) (sheltered / open), in the outer coastal waters of the Bothnian Sea (not specified), 3.7 m (0.74) (open) in the inner Kvarken Archipelago, 4.4 m in the outer Kvarken Archipelago (0 , 74) (open). The species does not occur in the Bothnian Bay. The eutrophication status is determined by the HELCOM HEAT tool, which first estimates the weighted average of the indicators by indicator group. The overall estimate of the eutrophication status is determined by the indicator group in the weakest state.

The value of BQI in the high seas benthic communities (< 60m in depth) is in the Gulf of Finland 0,93, Northern Baltic 4,0, 4,0 in the Åland Sea, 4,0 in Bothnian Sea, 1,5 in the Kvarken Sea and 1,5 in the Bothnian Sea. The eutrophication status is defined by the HELCOMin HEATT tool, which first assesses the weighted average indicators by group of indicators. The overall assessment of the eutrophication situation is determined by the group of the most vulnerable indicators.

The water management thresholds (ELS) for coastal benthic communities in the BBI Index are 0.52 / 0.51 (0-10 m /> 10 m) in the Gulf of Finland and 0.56 / 0.56 (0-10 m /> in the outer Gulf of Finland). 10 m), In the southwestern inner archipelago 0.53 / 0.57 (0-10 m /> 10 m), In the southwestern intermediate archipelago 0.56 / 0.53 (0-10 m /> 10 m), In the southwestern outer archipelago 0.55 / 0.54 (0-10 m /> 10 m), 0.56 / 0.57 (0-10 m /> 10 m) in the inland coastal waters of the Bothnian Sea, 0.53 / 0.55 (0-10 m) in the outer coastal waters of the Bothnian Sea /> 10 m), Inner Kvarken Archipelago 0.57 / 0.58 (0-10 m /> 10 m), In outer Kvarken Archipelago 0.56 / 0.59 (0-10 m /> 10 m), Inland Gulf Coast 0 , 57 / 0.55 (0-10 m /> 10 m) and 0.56 / 0.55 (0-10 m /> 10 m) in the outer Gulf of Bothnia. The eutrophication status is determined by the HELCOM HEAT tool, which first estimates the weighted average of the indicators by indicator group. The overall estimate of the eutrophication status is determined by the indicator group in the weakest state.The eutrophication status is defined by the HELCOMin HEATT tool, which first assesses the weighted average indicators by group of indicators. The overall assessment of the eutrophication situation is determined by the group of the most vulnerable indicators.