Persistent toxic substances in remote lake and coastal sediments from Svalbard, Norwegian Arctic: levels, sources and fluxes.
Surface sediments from remote lakes and coastal areas from Ny-Alesund, Svalbard, Norwegian Arctic were analyzed for polycyclic aromatic hydrocarbons (PAHs), polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs). Relatively high levels of PAHs were encountered from several lakes from Ny-Alesund, which were within the range of levels reported for European high mountain lakes and some urban/industrialized areas in the world, pointing to the role of remote Arctic lakes as potential reservoir of semi-volatile organic compounds. Specific patterns of PBDEs were observed, showing higher concentrations of lower brominated compounds such as BDE-7, 17 and 28. Estimated surface sediment fluxes of PAHs in Ny-Alesund remote lakes were similar to those observed for some European high mountain lakes. The current PAH levels in sediments from three lakes exceeded Canadian sediment quality guidelines, suggesting the presence of possible risks for aquatic organisms and the need for further studies.
Jiao
Liping
L
Department of Biology & Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, China.
Zheng
Gene J
GJ
Minh
Tu Binh
TB
Richardson
Bruce
B
Chen
Liqi
L
Zhang
Yuanhui
Y
Yeung
Leo W
LW
Lam
James C W
JC
Yang
Xulin
X
Lam
Paul K S
PK
Wong
Ming H
MH
D001110:Arctic Regions; D004054:Diethylstilbestrol / Q000031:analogs & derivatives / Q000032:analysis; D054750:Ecotoxicology / Q000379:methods*; D004784:Environmental Monitoring / Q000379:methods; D004785:Environmental Pollutants / Q000032:analysis*; D005618:Fresh Water; D019015:Geologic Sediments / Q000737:chemistry*; D006843:Hydrocarbons, Chlorinated / Q000032:analysis; D009664:Norway; D011078:Polychlorinated Biphenyls / Q000032:analysis; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D012623:Seawater; D013997:Time Factors
D004785:Environmental Pollutants; D006843:Hydrocarbons, Chlorinated; D011084:Polycyclic Aromatic Hydrocarbons; C048587:diethylstilbestrol monophosphate; D004054:Diethylstilbestrol; D011078:Polychlorinated Biphenyls