The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'single-use plastics' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good has been provisionally indicated for this category, even though no specific threshold has been established.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'fishing gear' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good' has been provisionally indicated for this category, even though no specific threshold has been established.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'plastic' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good' has been provisionally indicated for this category, even though no specific threshold has been established.

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (1, 2)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (10, 16)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (44, 55)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (58, 69)

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'single-use plastics' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good has been provisionally indicated for this category, even though no specific threshold has been established.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'fishing gear' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good' has been provisionally indicated for this category, even though no specific threshold has been established.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'plastic' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good' has been provisionally indicated for this category, even though no specific threshold has been established.

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (1, 2)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (10, 16)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (44, 55)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (58, 69)

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'single-use plastics' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good has been provisionally indicated for this category, even though no specific threshold has been established.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'fishing gear' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good' has been provisionally indicated for this category, even though no specific threshold has been established.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'plastic' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good' has been provisionally indicated for this category, even though no specific threshold has been established.

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (1, 2)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (10, 16)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (44, 55)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (58, 69)

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'single-use plastics' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good has been provisionally indicated for this category, even though no specific threshold has been established.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'fishing gear' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good' has been provisionally indicated for this category, even though no specific threshold has been established.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'plastic' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good' has been provisionally indicated for this category, even though no specific threshold has been established.

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (1, 2)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (10, 16)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (44, 55)

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (58, 69)

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'fishing gear' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good' has been provisionally indicated for this category, even though no specific threshold has been established.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'single-use plastics' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good has been provisionally indicated for this category, even though no specific threshold has been established.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures.

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (2, 3)

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures.

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (4, 6)

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures. For 'other materials' the number of items found exceeds the European threshold (20 items/100m). Therefore, 'Not good' has been provisionally indicated for this category, even though no specific threshold has been established.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures.

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures.

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (6, 11)

The assessment was carried out according to the OSPAR method, using data from four beach locations. The current status was assessed based on the measurement years 2018 to 2020 and with the median as a measure for the average. The trend analysis is also median-based (Theil-Sen method) and covers the years 2015 to 2020. At European level, a threshold value of 20 pieces of litter per 100 metres of beach length has been set. The composition of the waste plays no role in testing against the threshold value, but is monitored and reported. Insight into the composition and quantities per waste category is important for being able to trace sources and to be able to take targeted measures.

Mean probability that a haul contains a litter item over the eight years of the assessment. 95% confidence intervals based on the yearly probability means. (5, 8)

Northern fulmars are ‘true’ seabirds. They forage exclusively on the sea surface and are known to regularly ingest litter. The OSPAR indicator focuses on these ingested quantities and thus provides an indication of the amount of floating litter and the potential negative health effects for these birds. The stomach contents of beached northern fulmars are analysed, whereby the total weight and composition of the litter (> 1 mm) are determined. The methodology used is internationally standardised and because the monitoring has been ongoing for many years, a lot of data is available. See the OSPAR CEMP Guidelines (2015) for further methodological details. Good environmental status is achieved when a maximum of 10 percent of the birds have more than 0.1 gram of plastic in their stomach. This threshold value was established by OSPAR in 2020. The assessment of the current situation was based on the measurement years 2014 to 2018. The trend analysis was carried out using data from 2009 to 2018.