NEW SUBSTANCES: Model assessment of potential for long-range transboundary atmospheric transport and persistence of Endosulfan
نویسندگان
چکیده
منابع مشابه
Overall Persistence, Long-range Transport Potential and Global Distribution of Endosulfan and its Transformation Products
Overall persistence (POV) and long-range transport potential (LRTP) of and endosulfan and two of their transformation products, endosulfan sulfate and endosulfan diol, are estimated with two multimedia box models, the OECD POV and LRTP Screening Tool and the global, latitudinally resolved model CliMoChem. The OECD Tool yields POV and LRTP for each compound separately, whereas the CliMoChem mode...
متن کاملComparison of predictions from multi-media box models and a multicompartment chemistry-atmospheric transport model
Background, Aim and Scope. Modelling of the fate of environmental chemicals can be done by relatively simple multi-media box models or using complex atmospheric transport models. It was the aim of this work to compare the results obtained for both types of models using a small set of non-ionic and non-polar or moderately polar organic chemicals, known to be distributed over long distances. Mate...
متن کاملAtmospheric transport of persistent organic pollutants (POPs) to Bjørnøya (Bear island).
A first medium term monitoring of atmospheric transport and distribution for persistent organic pollutants (POPs) in Bjørnøya (Bear island) air samples has been performed in the period between week 51/1999 and week 28/2003. A total of 50 single compounds consisting of polychlorinated biphenyls (33 congeners), hexachlorobenzene (HCB), hexachlorocyclohexane isomers (alpha-, beta-, gamma-HCH), alp...
متن کاملSeasonal trends and potential sources of ambient air OCPs in urban and suburban areas in Dalian, China.
A seasonal field campaign by passive sampling was conducted from February 2008 to February 2009, aiming to measure air concentrations of organochlorine pesticides (OCPs) in the urban and suburban areas in Dalian. At the urban site, similar annual average concentrations of α-endosulfan and α-HCH were found, both being approximately 4 times as high as those of p,p'-DDT and p,p'-DDE, while at the ...
متن کاملAtmospheric deposition of current use pesticides in the Arctic: snow core records from the Devon Island Ice Cap, Nunavut, Canada.
Current use pesticides (CUPs) have been detected in the Arctic, even though there are no direct sources and their long range atmospheric transport potential is generally lower than that of legacy pesticides. Data on the deposition of CUPs in the Arctic are required to assess the impact of their global usage and emission. In this study, selected CUPs were measured in the layers of a snow pit sam...
متن کامل