Skip to Main Content
Spatial characteristics of net methylmercury production hot spots in peatlandsAuthor(s): Carl P.J. Mitchell; Brian A. Branfireun; Randall K. Kolka
Source: Environmental Science & Technology. 42: 1010-1016.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: View PDF (436.24 KB)
DescriptionMany wetlands are sources of methylmercury (MeHg) to surface waters, yet little information exists about the distribution of MeHg within wetlands. Total mercury (THg) and MeHg in peat pore waters were studied in four peatlands in spring, summer, and fall 2005. Marked spatial variability in the distribution of MeHg, and %MeHg as a proxy for net MeHg production, was observed, with highest values occurring in discrete zones. We denote these zones "MeHg hot spots", defined as an area where the pore water %MeHg exceeded the 90th percentile of the data set (n=463) or >22% of THg as MeHg. MeHg hot spots occurred near the interface between peatland and the upland watershed with few exceptions.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationMitchell, Carl P.J.; Branfireun, Brian A.; Kolka, Randall K. 2008. Spatial characteristics of net methylmercury production hot spots in peatlands. Environmental Science & Technology. 42: 1010-1016.
- Methylmercury dynamics at the upland-peatland interface: Topographic and hydrogeochemical controls
- Assessing sulfate and carbon controls on net methylmercury production in peatlands: An in situ mesocosm approach
- The effects of hydrologic fluctuation and sulfate regeneration on mercury cycling in an experimental peatland
XML: View XML