Animal excrement: A potential biomonitor of heavy metal contamination in the marine environment
作者： Xuebin Yin , Lijun Xia , Liguang Sun , Honghao Luo , Yuhong Wang
DOI: 10.1016/J.SCITOTENV.2008.03.005
关键词:
摘要: To assess the feasibility of using animal excrement to biomonitor extent heavy metal contamination in marine environment, concentrations mercury (Hg), lead (Pb), copper (Cu) and zinc (Zn) fresh seabirds mammals, along with other biomaterials, from Arctic, Antarctica (West East), Xisha Archipelago South China Sea were determined. Results show that animals at higher trophic levels generally contained high Hg, demonstrating biomagnification Hg through food chains different remote regions. Significant variations accumulation excrements observed among distinctive geographical areas, highest concentration Pb which reflects air pollution various sampling locations. Concentrations Cu primarily correlate geochemical background High found near Great Wall Station West where a mineralized belt exists. No clear spatial variation pattern was for Zn excrement. This study shows can be used as bioindicators level advantages easy sampling, accurate detection (i.e., accumulation), reconstructing historical trends by long-term monitoring sedimentary excrements.
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