Deposition of air pollutants around the North Sea and the North-East Atlantic in 2012

Executive summary

This report presents the results of monitoring undertaken by OSPAR Contracting Parties for the Comprehensive Atmospheric Monitoring Programme (CAMP) during 2012. Under the CAMP, OSPAR Contracting Parties are committed to monitoring, on a mandatory basis, the concentrations of a range of metals, organic compounds and nutrients in precipitation and air. The CAMP also encourages OSPAR Contracting Parties to monitor, on a voluntary basis, additional compounds (such as certain persistent organic pollutants). The report gives detailed information on observed atmospheric inputs of selected contaminants to the OSPAR maritime area and its regions during 2012.

Region II, the Greater North Sea, remains the most intensely observed sub‐region. Sub‐regional coasts that are most under‐represented are the Irish Sea (Region III), the Bay of Biscay (Region IV) and the far north‐ east (Region I).

Full Report

All Contracting Parties reported data for 2012. For most Parties some elements are missing to comply completely with the monitoring obligation defined by CAMP.  

The regional distribution of the various pollutants show in general elevated levels closest to the main source areas, although there is variability at some sites, which may be (relatively) more influenced by local or nearby sources.  

Time trends show decreases in nitrogen, heavy metals and  ƴ‐HCH in line with the general emission reductions achieved in Europe over recent decades. The OSPAR CAMP data are accessible online at http://ebas.nilu.no.

Table 2.1 and Figure 2.1: Monitoring sites reporting reduced and oxidised nitrogen compounds, heavy metals (HM), mercury and persistent organic pollutants (POPs) to CAMP in 2012.