Ospar Commission
OSPAR's Quality Status Report 2023 Friday Ocean Findings Issue 31
Artificial and naturally occurring chemicals end up in the North-East Atlantic as a result of land-based and sea-based human activities. In fact, the OSPAR Maritime Area receives chemical pressure from approximately 140 000 hazardous substances. Some of these chemicals are hazardous for the marine environment. OSPAR seeks to prevent pollution by hazardous substances, by eliminating their emissions, discharges and losses, to achieve levels that do not give rise to adverse effects on human health or the marine environment.

In this week's newsletter we feature 3 assessments produced by OSPAR's Hazardous Substances and Eutrophication Committee. These assessments contribute to our 2023 Quality Status Report and will, when combined, create a picture of the health of the marine environment of the North-East Atlantic. Please do contact us with any comments at [email protected]
Waterborne and Atmospheric Inputs of Nutrients and Metals to the Sea

This report describes results of the trend analysis of data collected under OSPAR's Riverine Inputs and Direct Discharges Monitoring Programme, under national and European assessments by Contracting Parties and under the Co-operative programme for monitoring and evaluation of the long-range transmission of air pollutants in Europe. It provides supporting evidence for conclusions on progress towards the specific targets of the OSPAR Hazardous Substances Strategy and Eutrophication Strategy 2010-2020 to reduce discharges and associated riverine inputs of pollutants to the North-East Atlantic.

Integrated biological effects and chemical contaminants approach: a case study

The monitoring expertise shared by OSPAR Contracting Parties over the last ten years is illustrated here by different case studies carried out under voluntary national monitoring programmes, in both coastal and offshore areas, in sites with contrasted contamination patterns, and in the short and long term. They apply a combination of biomarkers and chemical contaminants from a core list of sentinel species that were selected according to their spatial distribution.

Status and Trend Hazardous Substances using CHASE

The combined impact of biota and sediments indicators was calculated using the CHASE method. For sediments, seven subregions had data to calculate the CHASE score, with only one subregion having good environmental status. For biota, data from 13 subregions were available, with only three subregions having good environmental status.

More information on OSPAR's Hazardous Substances and Eutrophication Committee
OSPAR Commission
https://www.ospar.org/ | [email protected]
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