Trends in background levels of persistent organic pollutants at Kosetice observatory, Czech Republic.1) Part I. Ambient air and wet deposition 1996-2005.
Kosetice observatory is a facility of the Czech Hydrometeorological Institute, which is a part of the European Monitoring and Evaluation Programme (EMEP) network. Persistent organic pollutants (POPs: PCBs, DDTs, HCHs, PAHs) have been monitored in all environmental matrices using the integrated monitoring approach. Generally, the atmospheric levels of POPs in this Central European background station (mean values: 0.115 ng m(-3) for SigmaPCBs, 0.040 ng m(-3) for SigmaDDTs, 0.077 ng m(-3) for SigmaHCHs, and 17 ng m(-3) for SigmaPAHs) are significantly higher than those in other EMEP stations localized mostly in Northern and Western Europe. Long-term trends of POP concentrations in the ambient air and wet deposition are presented in this article and they show a slow decline in the last decade for most of the investigated compounds. Temporally increased levels of certain chemicals were associated with some local climatic (floods) or socio-economic (fuel prices) factors.
Holoubek
Ivan
I
RECETOX, Faculty of Science, Masaryk University, Kamenice 126/3, 625 00, Brno, Czech Republic.
Klánová
Jana
J
Jarkovský
Jirí
J
Kohoutek
Jirí
J
D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry; D000397:Air Pollution / Q000032:analysis*; D001272:Atmosphere / Q000737:chemistry; D018153:Czech Republic; D004784:Environmental Monitoring; D009930:Organic Chemicals / Q000032:analysis* / Q000737:chemistry; D011891:Rain / Q000737:chemistry*; D013997:Time Factors
D000393:Air Pollutants; D009930:Organic Chemicals