PMID- 27475438 OWN - NLM STAT- MEDLINE DCOM- 20190114 LR - 20200217 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 25 IP - 32 DP - 2018 Nov TI - Atmospheric monitoring of organochlorine pesticides across some West African countries. PG - 31828-31835 LID - 10.1007/s11356-016-7284-y [doi] AB - Most African countries have ratified the Stockholm Convention on persistent organic pollutants (POPs) and are expected to reduce emissions of POPs such as organochlorine pesticides (OCPs) to the atmosphere. Emerging evidence, however, suggests that there are contemporary sources of OCPs in African countries despite the global ban on these products. This study investigated the atmospheric contamination from OCPs in four West African countries-Togo, Benin, Nigeria, and Cameroon-to ascertain the emission levels of OCPs and the characteristic signatures of contamination. Polyurethane foam (PUF) disk passive air samplers (PAS) were deployed in each country for ca. 55 days in 2012 and analyzed for 25 OCPs. Hexachlorocyclohexanes (HCHs) and DDTs constituted the highest burden of atmospheric OCPs in the target countries, at average concentrations of 441 pg m(-3) (range 23-2718) and 403 pg m(-3) (range 91-1880), respectively. Mirex had the lowest concentration, ranged between 0.1 and 3.3 pg m(-3). The concentration of OCPs in rainy season was higher than in dry season in Cameroon, and presupposed inputs from agriculture during the rainy season. The concentrations of summation operator25 OCPs in each country were in the following order: Cameroon > Nigeria > Benin > Togo. There was significant evidence, based on chemical signatures of the contamination that DDT, aldrin, chlordane, and endosulfan were recently applied at certain sites in the respective countries. FAU - Isogai, Nahomi AU - Isogai N AD - Faculty of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan. FAU - Hogarh, Jonathan N AU - Hogarh JN AD - Department of Environmental Science, College of Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana. jhogarh@gmail.com. FAU - Seike, Nobuyasu AU - Seike N AD - National Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba, 305-8604, Japan. FAU - Kobara, Yuso AU - Kobara Y AD - National Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba, 305-8604, Japan. FAU - Oyediran, Femi AU - Oyediran F AD - Environmental Laboratories Limited, P. O. Box 15104, Ikeja G.P.O., Lagos, Nigeria. FAU - Wirmvem, Mengnjo J AU - Wirmvem MJ AD - Department of Chemistry, School of Science, Tokai University, Hiratsuka, 259-1211, Japan. FAU - Ayonghe, Samuel N AU - Ayonghe SN AD - Department of Environmental Science, Faculty of Science, University of Buea, P. O. Box 63, Buea, Cameroon. FAU - Fobil, Julius AU - Fobil J AD - Department of Biological, Environmental and Occupational Health Sciences, School of Public Health, University of Ghana, Legon, Ghana. FAU - Masunaga, Shigeki AU - Masunaga S AD - Faculty of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan. LA - eng PT - Journal Article DEP - 20160731 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Air Pollutants) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Pesticides) RN - 0 (Polyurethanes) RN - 12789-03-6 (Chlordan) RN - 59NEE7PCAB (Hexachlorocyclohexane) RN - 9009-54-5 (polyurethane foam) RN - OKA6A6ZD4K (Endosulfan) SB - IM MH - Africa, Western MH - Agriculture MH - Air Pollutants/*analysis MH - Atmosphere MH - Cameroon MH - Chlordan/analysis MH - Endosulfan/analysis MH - Environmental Monitoring MH - Hexachlorocyclohexane/analysis MH - Hydrocarbons, Chlorinated/*analysis MH - Nigeria MH - Pesticides/*analysis MH - Polyurethanes/analysis MH - Seasons OTO - NOTNLM OT - Organochlorine pesticides (OCPs) OT - Passive air sampling OT - Persistent organic pollutants (POPs) OT - West Africa EDAT- 2016/08/01 06:00 MHDA- 2019/01/15 06:00 CRDT- 2016/08/01 06:00 PHST- 2016/04/19 00:00 [received] PHST- 2016/07/18 00:00 [accepted] PHST- 2016/08/01 06:00 [pubmed] PHST- 2019/01/15 06:00 [medline] PHST- 2016/08/01 06:00 [entrez] AID - 10.1007/s11356-016-7284-y [pii] AID - 10.1007/s11356-016-7284-y [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2018 Nov;25(32):31828-31835. doi: 10.1007/s11356-016-7284-y. Epub 2016 Jul 31.