EXPOSURE OF CALIFORNIA PEREGRINE FALCON (FALCO PEREGRINUS) TO BROMINATED FLAME RETARDANTS (PBDES AND NEW ALTERNATIVE BFRS) AND PCBS: DIFFERENT PROFILES OF PBDES, PREY, AND ISOTOPE PATTERNS BETWEEN COASTAL AND BIG CITY NESTING BIRDS
California peregrine falcon eggs (n = 90 eggs from 52 birds, 38 nest sites, collected 1986-2007) showed among highest levels of polybrominated diphenyl ethers (PBDEs) ranging 0.08-53.1 ug/g lipid with median 5.11. Over the 21-year period during which peregrine falcon eggs were collected, ∑PBDE levels in the California peregrine falcon population significantly doubled each decade (r=0.55, p<0.01), whereas PCB levels decreased slightly. For PBDEs, urban eggs had markedly different patterns from coastal eggs: BDE- 209 and the higher brominated PBDEs (hexa-nona) were dominant congeners in urban eggs, while BDE-47 and -99 were dominant in coastal eggs. The patterns of peregrine prey and stable isotope values of eggs (δ13C, δD, δ15N) suggest that the differences in PBDE profiles seen in urban vs coastal eggs may arise from differences in peregrine prey and in turn from differences in diet of the prey birds. Levels of new BFR replacements for PBDEs were examined in a subset of eggs (n=19) that had the highest PBDE levels and/or were most recently collected (1999-2007). HBB and BTBPE were detected in most eggs. This indicates that the classic and new alternative BFRs are likely to escape from consumer products and become environmental contaminants, bioaccumulating in the aquatic and terrestrial food web.
Park J-S Fong A Linthicum J Hooper K Holden A Chu V Newsome S D Henry R W Wang M Kim M Rhee A Patel P
California Department of Toxic Substances Control,California Environmental Protection Agency,Berkele Long Marine Laboratory,University of California-Santa Cruz,CA 95060,USA Carnegie Institution for Science,Washington,DC 20015,USA
国际会议
北京
英文
1-4
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）