| Abstract: | From 1977-1978 to 1990, concentrations of polychlorinated biphenyls (PCBs) and most organochlorine pesticides declined in eggs of red-breasted mergansers (Mergus serrator) nesting on islands in northwestern Lake Michigan. Further declines took place between 1990 and 2002. Between 1977-1978 and 1990 total PCBs decreased 60% (from 21 to 8.5 ??g/g, wet weight). An additional decline of 46% took place between 1990 and 2002 (8.5 to 4.6 ??g/g). Between 1977-1978 and 1990 p,p ???-DDE decreased 66% (from 6.5 to 2.2 ??g/g), and from 1990 to 2002 an additional decline of 36% took place (from 2.2 to 1.4 ??g/g). Between 1977-1978 and 1990 dieldrin decreased only 16% (from 0.82 to 0.69 ??g/g), but from 1990 to 2002 a 96% decrease occurred (from 0.69 to 0.03 ??g/g). ?? 2008 Springer Science+Business Media B.V. |
| Genre: | Article |
| ProdID: | 70035858 |
| Citation Author: | Heinz, G. H.; Stromborg, K. L. |
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| Citation End Page: | 168 |
| Citation Issue: | 1-4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Environmental Monitoring and Assessment |
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| Citation Number Of Pages: | 6 |
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| Citation Search Results Text: | Further declines in organochlorines in eggs of red-breasted mergansers from Lake Michigan, 1977-1978 versus 1990 versus 2002; 2009; Article; Journal; Environmental Monitoring and Assessment; Heinz, G. H.; Stromborg, K. L. |
| Citation Start Page: | 163 |
| Citation Volume: | 159 |
| Citation Year: | 2009 |
| Type: | citation/reference |
| Text: | Further declines in organochlorines in eggs of red-breasted mergansers from Lake Michigan, 1977-1978 versus 1990 versus 2002; 2009; Article; Journal; Environmental Monitoring and Assessment; Heinz, G. H.; Stromborg, K. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1007/s10661-008-0619-5 |
| Date Other: | Thu, 1 Jan 2009 00:00 -0600 |
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