Mercury Concentrations in Litterfall, Bad River Watershed, Wisconsin, 2012-2018
Dates
Publication Date
2020-08-28
Start Date
2012-09-18
End Date
2018-11-06
Citation
Burns, D.A., 2020, Mercury Data from the Bad River Watershed, Wisconsin, 2004-2018: U.S. Geological Survey data release, https://doi.org/10.5066/P9HRS2C3.
Summary
Annual litterfall samples were collected and analyzed for THg (total mercury) and MHg (methyl mercury) at a site (WI95) on Bad River tribal lands during 2012 to 2018. Litterfall was collected at a second site, WI01, during 2012 only. Litterfall was sampled in eight collectors, from which annual mass was determined. Total mercury analyses were performed on only four samples from the collectors with the lowest numbers in the sequence. A mass weighted sample based on the four THg samples was analyzed for MHg. Neither the collection of litterfall samples nor the Hg analyses were performed by the U.S. Geological Survey, New York Water Science Center.
Summary
Annual litterfall samples were collected and analyzed for THg (total mercury) and MHg (methyl mercury) at a site (WI95) on Bad River tribal lands during 2012 to 2018. Litterfall was collected at a second site, WI01, during 2012 only. Litterfall was sampled in eight collectors, from which annual mass was determined. Total mercury analyses were performed on only four samples from the collectors with the lowest numbers in the sequence. A mass weighted sample based on the four THg samples was analyzed for MHg. Neither the collection of litterfall samples nor the Hg analyses were performed by the U.S. Geological Survey, New York Water Science Center.
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Related External Resources
Type: Related Primary Publication
Burns, D.A., 2020, Compilation of mercury data and associated risk to human and ecosystem health, Bad River Band of Lake Superior Chippewa, Wisconsin: U.S. Geological Survey Open-File Report 2020–1095, 19 p., https://doi.org/10.3133/ofr20201095.
Data were collected to quantify Hg sources and concentrations in environmental media on Bad River Tribal lands. The goal was to better understand risk to human health and to the health of other biota from consumption of Hg-contaminated food sources as Hg bioaccumulates and biomagnifies in aquatic food webs.
Data source 2012-2016
Input directly
Natural Resources Department, Bad River Band of Lake Superior Chippewa
Data Source 2017-2018
Input directly
U.S. Geological Survey
