4.7 Article

Assessing and predicting the changes for inorganic mercury and methylmercury concentrations in surface waters of a tidal estuary (Adour Estuary, SW France)

期刊

MARINE POLLUTION BULLETIN
卷 186, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2022.114400

关键词

Effect separation; Contaminant transport; Pollution sources; Analysis of covariance; Mercury speciation; Water

向作者/读者索取更多资源

Total and dissolved concentrations of inorganic mercury (IHg) and methylmercury (MeHg) in water were analyzed in Adour Estuary. Factors such as sampling time and sample type were considered, and the results showed that the estuary has experienced historical anthropogenic contamination, but decreased emissions have led to reduced Hg concentrations. The concentrations of IHg and MeHg were influenced by suspended particulate matter and particulate organic carbon, with higher concentrations detected near specific discharge points.
Total and dissolved concentrations of inorganic mercury (IHg) and methylmercury (MeHg) in water (Adour Estuary) were determined during three sampling campaigns and related to biogeochemical variables (nutrients, organic matter). Factors (sampling time, sample type) were included in analysis of covariance with effect sep-aration. The urban estuary suffered historically from anthropogenic sources, however, decreased emissions have reduced Hg concentrations. Total IHg (0.51-3.42 ng L-1) and MeHg (25-81 pg L-1) concentrations are additively described by suspended particulate matter and particulate organic carbon. Higher total concentrations, carried by organic-rich particles, were found near specific discharge points (0.79-8.02 ng L-1 and 34-235 pg L-1 for IHg and MeHg, respectively). The associated high dissolved MeHg concentrations could not be explained only by biogeochemical variables. Better efficiency of the models is found for total than for dissolved concentrations. Models should be checked with other contaminants or with estuaries, suffering from downstream contamination.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据