J 2012

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

ADU-KUMI, S., Radovan KAREŠ, Jaromír LITERÁK, Jana BORŮVKOVÁ, P.O. YEBOAH et. al.

Basic information

Original name

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

Authors

ADU-KUMI, S. (288 Ghana, guarantor), Radovan KAREŠ (203 Czech Republic, belonging to the institution), Jaromír LITERÁK (203 Czech Republic, belonging to the institution), Jana BORŮVKOVÁ (203 Czech Republic, belonging to the institution), P.O. YEBOAH (288 Ghana), D. CARBOO (288 Ghana), O. AKOTO (288 Ghana), G. DARKO (288 Ghana), S. OSAE (288 Ghana) and Jana KLÁNOVÁ (203 Czech Republic, belonging to the institution)

Edition

Environmental Science and Pollution Research, HEIDELBERG, GERMANY, SPRINGER HEIDELBERG, 2012, 0944-1344

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 2.618

RIV identification code

RIV/00216224:14310/12:00061025

Organization unit

Faculty of Science

DOI

UT WoS

000306123000011

Keywords in English

Organochlorine pesticides; OCPs; Ambient air; Passive air sampling; Ghana; Africa; DDT; Endosulfan

Tags

Změněno: 10/4/2013 19:17, Ing. Andrea Mikešková

Abstract

V originále

Urban, 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 (alpha-, beta-, gamma- and delta-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 (alpha-, beta-chlordane, oxychlordane and trans-nonachlor), endosulfans (alpha- and beta-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 alpha-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 alpha-endosulfan. A p,p'-DDT/p,p'-DDE ratio suggested recent inputs of fresh technical DDT.

Links

ED0001/01/01, research and development project
Name: CETOCOEN