期刊
ENVIRONMENTAL POLLUTION
卷 229, 期 -, 页码 531-538出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2017.06.008
关键词
Methylmercury; Labile dissolved organic matter; Humic matter; Hg-II methylation; Interannual variability
资金
- Danish Council for Independent Research [1325-00030, 1323-00745]
- Swedish Research Council Formas [2014-1088]
- Kempe Foundation [SMK-1243]
- Swedish Environmental Protection Agency
Levels of neurotoxic methylmercury (MeHg) in phytoplankton are strongly associated with water MeHg concentrations. Because uptake by phytoplankton is the first and largest step of bioaccumulation in aquatic food webs many studies have investigated factors driving seasonal changes in water MeHg concentrations. Organic matter (OM) is widely accepted as an important driver of MeHg production and uptake by phytoplankton but is also known for strong interannual variability in concentration and composition within systems. In this study, we explore the role of OM on spatial and interannual variability of MeHg in a subarctic coastal sea, the northern Baltic Sea. Using MeHg (2014: 80 +/- 25 fM; 2015:
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