Lammel, Gerhard
Ghim, Young-Sung
Grados, Amelie
Gao, Huiwang
Huehnerfuss, Heinrich
Lohmann, Rainer
2024-01-21T01:36:01Z
2024-01-21T01:36:01Z
2021-09-04
2007-01
1352-2310
https://pubs.kist.re.kr/handle/201004/134792
The occurrence of persistent toxic substances (PTS) in China and possibly their regional transport in the Yellow and East China Seas region was studied. Organochlorines in atmospheric gas-phase and particulate matter were collected by high-volume sampling (filters and polyurethane foams) during 2 weeks in June 2003 (dry season) simultaneously at a Yellow Sea coastal site in an urban area, Qingdao, China, and a rural island site, Gosan, Jeju Island, Korea. Using GC methods, the samples were analysed for 9 persistent organic pollutants (POPs) regulated under the global POP convention, namely aldrin, chlordane (cis- and trans-isomers CC and TC), DDT and metabolites (o,p'-DDT, p,p'-DDD, and p,p'-DDE), dieldrin, endrin, heptachlor, hexachlorobenzene (HCB), mirex and PCB (congeners number 28, 52, 101 153 and 180), and for hexachlorocycloltexane (alpha-, beta- and gamma-isomers), a PTS and now considered for regulation under the convention, too. At the coastal site additionally o,p'-DDE and -DDD, beta-endosulfan, isodrin, heptachlorepoxide and delta-HCH, and at the island site additionally p,p'-DDT and 12 additional PCB congeners were analysed. 9 samples were collected at the coastal and 15 (for PCBs 5) at the island site. Long-range advection pathways were determined based on analysed back-trajectory calculations. The mean concentrations of DDT and its metabolites, HCB, HCH, and PCB at the coast were in the 100-1000 pg m(-3) range. Higher concentrations prevailed during nighttime. The levels were in general lower at the island site, but not for DDT. Local sources are likely. PCBs were even 2 orders of magnitude lower, suggesting that PCBs are not subject to regional transport but elevated concentrations in air are limited to the source areas. Organochlorine pesticide levels on the other hand were seemingly determined by regional transport over Mainland China rather than by emissions in the coastal area. The currently used pesticides mirex and chlordane were found at elevated levels, i.e. 79 (6.6-255) and 36 (< 6-71) pg m(-3), respectively, at the coast but not over the island. The POPs pesticides aldrin, dieldrin and endrin, never registered in China, were mostly found at < 10 pg m(-3) except for endrin at the coastal site (up to 400 pg m(-3)) and aldrin at the island site (up to 50 pg m(-3)). (c) 2006 Elsevier Ltd. All rights reserved.
English
PERGAMON-ELSEVIER SCIENCE LTD
ORGANOCHLORINE PESTICIDES
POLYCHLORINATED-BIPHENYLS
EXTRACTABLE ORGANOHALOGENS
PINE NEEDLES
PCBS
ENANTIOMERS
TRANSPORT
SEDIMENTS
TRENDS
IMPACT
Levels of persistent organic pollutants in air in China and over the Yellow Sea
Article
10.1016/j.atmosenv.2006.08.045
1
ATMOSPHERIC ENVIRONMENT, v.41, no.3, pp.452 - 464
ATMOSPHERIC ENVIRONMENT
41
3
452
464
scie
scopus
000243831000001
2-s2.0-33845396776
Environmental Sciences
Meteorology & Atmospheric Sciences
Environmental Sciences & Ecology
Meteorology & Atmospheric Sciences
Article
ORGANOCHLORINE PESTICIDES
POLYCHLORINATED-BIPHENYLS
EXTRACTABLE ORGANOHALOGENS
PINE NEEDLES
PCBS
ENANTIOMERS
TRANSPORT
SEDIMENTS
TRENDS
IMPACT
persistent organic pollutants
organochlorine pesticides
PCB
China
Yellow Sea
long-range transport