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  • Organohalogen contamination in passerine birds from three metropolises in China: geographical variation and its implication for anthropogenic effects on urban environments.

Organohalogen contamination in passerine birds from three metropolises in China: geographical variation and its implication for anthropogenic effects on urban environments.

Environmental pollution (Barking, Essex : 1987) (2014-03-04)
Le-Huan Yu, Xiao-Jun Luo, Hong-Ying Liu, Yan-Hong Zeng, Xiao-Bo Zheng, Jiang-Ping Wu, Yun-Jiang Yu, Bi-Xian Mai
ABSTRACT

Contamination of organohalogen pollutants (OHPs), including dichlorodiphenyl trichloroethane and its metabolites (DDTs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), decabromodiphenylethane (DBDPE), hexabromocyclododecanes (HBCDs), and dechlorane plus (DP) in three metropolises of China, Beijing, Wuhan, and Guangzhou, and a reference rural site were determined using terrestrial residential passerine species as bioindicator. DDTs dominated in Wuhan whereas flame retardants dominated in Guangzhou and Beijing. No geographical variation was found for PCB levels but it exhibited different homologue profiles among different sites which could be attributed to different dietary sources of birds. Industry characteristics of the sampling location contributed to the geographical differences in the occurrence and contamination profile of OHPs. The transformation of traditional agriculture characterized contamination profiles to industry characterized profiles in Beijing and Guangzhou implicates significantly environmental concern on the flame retardants contamination in non-hot-spot regions of China.

MATERIALS
Product Number
Brand
Product Description

Supelco
4,4′-DDT, PESTANAL®, analytical standard
Supelco
4,4′-DDT solution, certified reference material, 5000 μg/mL in methanol