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After 18 d on their respective mercury diets, the eggs of mallards fed 0.5, 1, 2, 4, or 8 \u03bcg\/g mercury contained 97.8, 86.0, 89.9, 88.9, and 85.9%, respectively, of the peak concentrations reached after 23 d. Depending on the dietary concentration of mercury, no more than approximately a week may be required for harmful concentrations (0.5\u20130.8 \u03bcg\/g, wet weight) to be excreted into eggs.<\/jats:p>","DOI":"10.1897\/09-060.1","type":"journal-article","created":{"date-parts":[[2009,8,6]],"date-time":"2009-08-06T22:17:26Z","timestamp":1249597046000},"page":"1979-1981","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Rapid increases in mercury concentrations in the eggs of mallards fed methylmercury"],"prefix":"10.1093","volume":"28","author":[{"given":"Gary H.","family":"Heinz","sequence":"first","affiliation":[{"name":"Patuxent Wildlife Research Center, U.S. Geological Survey, BARC-East, Building 308, 10300 Baltimore Avenue, Beltsville, Maryland 20705"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David J.","family":"Hoffman","sequence":"additional","affiliation":[{"name":"Patuxent Wildlife Research Center, U.S. Geological Survey, BARC-East, Building 308, 10300 Baltimore Avenue, Beltsville, Maryland 20705"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jon D.","family":"Klimstra","sequence":"additional","affiliation":[{"name":"Patuxent Wildlife Research Center, U.S. Geological Survey, BARC-East, Building 308, 10300 Baltimore Avenue, Beltsville, Maryland 20705"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katherine R.","family":"Stebbins","sequence":"additional","affiliation":[{"name":"Patuxent Wildlife Research Center, U.S. Geological Survey, BARC-East, Building 308, 10300 Baltimore Avenue, Beltsville, Maryland 20705"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2009,9,1]]},"reference":[{"year":"2000","author":"Alpers","key":"2025010317061739100_bib1"},{"key":"2025010317061739100_bib2","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1007\/s00244-006-0163-7","article-title":"Mercury and drought along the lower Carson River, Nevada: I. 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