作者
Andrea G Bravo, Dolly N Kothawala, Katrin Attermeyer, Emmanuel Tessier, Pascal Bodmer, José LJ Ledesma, Joachim Audet, Joan Pere Casas-Ruiz, Núria Catalán, Sophie Cauvy-Fraunié, Miriam Colls, Anne Deininger, Vesela V Evtimova, Jérémy A Fonvielle, Thomas Fuß, Peter Gilbert, Sonia Herrero Ortega, Liu Liu, Clara Mendoza-Lera, Juliana Monteiro, Jordi-René Mor, Magdalena Nagler, Georg H Niedrist, Anna C Nydahl, Ada Pastor, Josephine Pegg, Catherine Gutmann Roberts, Francesca Pilotto, Ana Paula Portela, Clara Romero González-Quijano, Ferran Romero, Martin Rulík, David Amouroux
发表日期
2018/11/1
期刊
Water Research
卷号
144
页码范围
172-182
出版商
Pergamon
简介
Large-scale studies are needed to identify the drivers of total mercury (THg) and monomethyl-mercury (MeHg) concentrations in aquatic ecosystems. Studies attempting to link dissolved organic matter (DOM) to levels of THg or MeHg are few and geographically constrained. Additionally, stream and river systems have been understudied as compared to lakes. Hence, the aim of this study was to examine the influence of DOM concentration and composition, morphological descriptors, land uses and water chemistry on THg and MeHg concentrations and the percentage of THg as MeHg (%MeHg) in 29 streams across Europe spanning from 41°N to 64 °N. THg concentrations (0.06–2.78 ng L−1) were highest in streams characterized by DOM with a high terrestrial soil signature and low nutrient content. MeHg concentrations (7.8–159 pg L−1) varied non-systematically across systems. Relationships between DOM …
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AG Bravo, DN Kothawala, K Attermeyer, E Tessier… - Water Research, 2018