Levels and seasonal variations of organochlorine pesticides in urban and rural background air of southern Ghana

dc.contributor.authorAdu-Kumi, S.
dc.contributor.authorKareš, R.
dc.contributor.authorLiterák, J.
dc.contributor.authorBorůvková, J.
dc.contributor.authorYeboah, P.O.
dc.contributor.authorCarboo, D.
dc.contributor.authorAkoto, O.
dc.contributor.authorDarko, G.
dc.contributor.authorOsae, S.
dc.contributor.authorKlánová, J.
dc.date.accessioned2019-01-15T10:43:43Z
dc.date.available2019-01-15T10:43:43Z
dc.date.issued2012-06
dc.description.abstractUrban, suburban and rural background air samples were collected in southern Ghana in 2008 employing polyurethane foam disc passive air samplers (PAS). PAS were analysed for organochlorine pesticides (OCPs), namely hexachlorocyclohexanes (α-, β-, γ- and δ-hexachlorocyclohexane), dichlorodiphenyltrichloroethane including metabolites (o,p′- and p,p′-DDT, DDE and DDD), hexachlorobenzene, pentachlorobenzene, aldrin, dieldrin, endrins (endrin, endrin aldehyde and endrin ketone), isodrin, heptachlors (heptachlor, heptachlor epoxide A and heptachlor epoxide B), chlordanes (α-, β-chlordane, oxychlordane and trans-nonachlor), endosulfans (α- and β-endosulfan and endosulfan sulphate), methoxychlor and mirex using a gas chromatograph coupled to a mass spectrometer. The levels of OCPs ranged for the individual pesticides from below limit of quantification to 750 pg m-3 (for α-endosulfan), and current agricultural application seemed to be the main primary source of most abundant pesticides. Re-volatilization of previously used pesticides from contaminated soils could not be ruled out either as potential secondary source of contamination, especially in warm and dry seasons and periods of intensive agricultural activities. Higher atmospheric concentrations were observed in November and December during the dry season compared to lower concentrations observed in June, July and August when the country experiences heavy rains. The highest seasonal variation was observed for currently used pesticides as α-endosulfan. A p,p′-DDT/p,p′-DDE ratio suggested recent inputs of fresh technical DDT. © 2012 Springer-Verlag.en_US
dc.identifier.otherVol. 19(6): pp 1963-70
dc.identifier.otherDOI: 10.1007/s11356-012-1013-y
dc.identifier.urihttp://ugspace.ug.edu.gh/handle/123456789/26822
dc.language.isoenen_US
dc.publisherEnvironmental Science and Pollution Researchen_US
dc.subjectAfricaen_US
dc.subjectAmbient airen_US
dc.subjectDDTen_US
dc.subjectEndosulfanen_US
dc.subjectGhanaen_US
dc.subjectOCPsen_US
dc.subjectOrganochlorine pesticidesen_US
dc.subjectPassive air samplingen_US
dc.titleLevels and seasonal variations of organochlorine pesticides in urban and rural background air of southern Ghanaen_US
dc.typeArticleen_US

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