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Lacustrine responses to decreasing wet mercury deposition rates: results from a case study in northern Minnesota

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Lacustrine responses to decreasing wet mercury deposition rates: results from a case study in northern Minnesota; 2014; Article; Journal; Environmental Science and Technology; Brigham, Mark E.; Sandheinrich, Mark B.; Gay, David A.; Maki, Ryan P.; Krabbenhoft, David P.; Wiener, James G.

Summary

We present a case study comparing metrics of methylmercury (MeHg) contamination for four undeveloped lakes in Voyageurs National Park to wet atmospheric deposition of mercury (Hg), sulfate (SO4–2), and hydrogen ion (H+) in northern Minnesota. Annual wet Hg, SO4–2, and H+ deposition rates at two nearby precipitation monitoring sites indicate considerable decreases from 1998 to 2012 (mean decreases of 32, 48, and 66%, respectively). Consistent with decreases in the atmospheric pollutants, epilimnetic aqueous methylmercury (MeHgaq) and mercury in small yellow perch (Hgfish) decreased in two of four lakes (mean decreases of 46.5% and 34.5%, respectively, between 2001 and 2012). Counter to decreases in the atmospheric pollutants, MeHgaq [...]

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Harvested on Tue Sep 30 03:20:28 MDT 2014 from MODS XML Service

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Type Scheme Key
local-index unknown 70123972
local-pk unknown 70123972
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1021/es500301a
series unknown Environmental Science & Technology

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journalEnvironmental Science & Technology
parts
typevolume
value48
typeissue
value11
languageEnglish
citationTypeArticle

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