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标题：Global Assessment of Silver Pollution using Sperm Whales (Physeter macrocephalus) as an Indicator Species
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作者：Laura C Savery ; Sandra S Wise ; Carolyne Falank 等
期刊名称：Journal of Environmental & Analytical Toxicology
电子版ISSN：2161-0525
出版年度：2013
卷号：3
期号：2
DOI：10.4172/2161-0525.1000169
语种：English
出版社：OMICS International
摘要：Silver pollution in the marine environment is of concern, particularly, with the rapid increasing use of silver nanoparticles in consumer products providing additional sources of silver emissions. Silver is highly toxic and known to bioaccumulate in aquatic organisms; however, the risk silver poses to the marine ecosystem is poorly understood. The sperm whale (Physeter macrocephalus), a toothed whale having a wide global distribution and high trophic level, is a sentinel of ocean health. The aim of this study was to provide a global baseline for silver as a marine pollutant using the sperm whale as an indicator species. Skin biopsies were collected in free-ranging sperm whales around the globe during the voyage of the research vessel, Odyssey, during 2000 and 2005. Total silver levels were measured in 298 sperm whales from 16 regions. Detectable levels were found in 176 whales and ranged from 0.1 to 4,179.0 μg/g ww with a global mean level of 16.9 ± 14.1 μg/g ww. The highest mean level was found in whales sampled in waters near Seychelles with 123.3 μg/g ww, and the lowest mean in whales near Chagos with 0.1 μg/g ww. These data provide an important global baseline for silver pollution that precedes the recent emergence of silver nanoparticles.
关键词：Silver; Sperm whale; Skin biopsies; Atlantic Ocean; Indian Ocean; Pacifc Ocean; Mediterranean Sea