TY - JOUR
T1 - Toward a global network for persistent organic pollutants in air
T2 - Results from the GAPS study
AU - Pozo, Karla
AU - Harner, Tom
AU - Wania, Frank
AU - Muir, Derek C.G.
AU - Jones, Kevin C.
AU - Barrie, Leonard A.
PY - 2006/8/15
Y1 - 2006/8/15
N2 - The Global Atmospheric Passive Sampling (GAPS) study aims to demonstrate the feasibility of using passive samplers to assess the spatial distribution of persistent organic pollutants on a worldwide basis. The GAPS network includes more than 40 sites on 7 continents, mainly in background locations, with some representation of urban and agricultural areas. Here we present concentrations of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) in Polyurethane foam disk samplers, deployed from December 2004 to March 2005. Legacy OCPs such as α-HCH (hexachlorocyclohexane), Chlordanes (trans- and cis-Chlordane and frans-Nonachlor), Dieldrin, and dichlorodiphenyltrichloroethane isomers were detected at most sites with some high values that may be related to possible continued use and/or re-emissions related to historic use. Geometric mean (GM) air concentrations (pg/m3) were: 8.5 for IHCH (sum of α- and γ-isomers), 2.6 for ΣChlordanes, 0.8 for Dieldrin, and 0.8 for p,p′-DDE. Current-use pesticides such as γ-HCH (lindane) and especially Endosulfan I exhibited more variable and higher concentrations with GMs of 5 and 58, respectively. PCBs and PBDEs were elevated at urban/suburban sites consistent with their historical use pattern. GM concentrations (pg/m 3) were 17 for PCBs and 4 for PBDEs. Sampling under GAPS will continue and will eventually allow seasonality effects and longer-term temporal and spatial trends to be evaluated.
AB - The Global Atmospheric Passive Sampling (GAPS) study aims to demonstrate the feasibility of using passive samplers to assess the spatial distribution of persistent organic pollutants on a worldwide basis. The GAPS network includes more than 40 sites on 7 continents, mainly in background locations, with some representation of urban and agricultural areas. Here we present concentrations of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) in Polyurethane foam disk samplers, deployed from December 2004 to March 2005. Legacy OCPs such as α-HCH (hexachlorocyclohexane), Chlordanes (trans- and cis-Chlordane and frans-Nonachlor), Dieldrin, and dichlorodiphenyltrichloroethane isomers were detected at most sites with some high values that may be related to possible continued use and/or re-emissions related to historic use. Geometric mean (GM) air concentrations (pg/m3) were: 8.5 for IHCH (sum of α- and γ-isomers), 2.6 for ΣChlordanes, 0.8 for Dieldrin, and 0.8 for p,p′-DDE. Current-use pesticides such as γ-HCH (lindane) and especially Endosulfan I exhibited more variable and higher concentrations with GMs of 5 and 58, respectively. PCBs and PBDEs were elevated at urban/suburban sites consistent with their historical use pattern. GM concentrations (pg/m 3) were 17 for PCBs and 4 for PBDEs. Sampling under GAPS will continue and will eventually allow seasonality effects and longer-term temporal and spatial trends to be evaluated.
UR - http://www.scopus.com/inward/record.url?scp=33747502180&partnerID=8YFLogxK
U2 - 10.1021/es060447t
DO - 10.1021/es060447t
M3 - Article
C2 - 16955879
AN - SCOPUS:33747502180
SN - 0013-936X
VL - 40
SP - 4867
EP - 4873
JO - Environmental Science and Technology
JF - Environmental Science and Technology
IS - 16
ER -