Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9456525 | Environmental Pollution | 2005 | 8 Pages |
Abstract
Organochlorine compounds (OCs) including polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), polychlorinated biphenyls (PCBs) and 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (p-pâ²-DDE), heavy metals (Pb, Cd, Zn, Cu), and arsenic were measured in house sparrows (Passer domesticus) and common ground doves (Columbina passerina) from Baja California Sur, México. Concentrations of PCDD/Fs were low, with 21Â pg/g for house sparrows, and 7.7Â pg/g for common ground doves. Non-ortho-PCB concentrations in house sparrow and common ground doves were 58 and 254Â pg/g, respectively, and are within the highest concentrations reported in species that are in the low levels of food webs. The major differences in organochlorine levels between species were found for ortho-PCBs and DDTs. ortho-PCB levels were higher in the seedeater species, whereas DDT levels were higher in the omnivorous species. Heavy metal levels were far below those associated with negative effects.
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Authors
Begoña Jiménez, Ricardo RodrÃguez-Estrella, Rubén Merino, Gema Gómez, Laura Rivera, MarÃa José González, Esteban Abad, Josep Rivera,