Speciated atmospheric mercury at the Waliguan Global Atmosphere Watch station in the northeastern Tibetan Plateau: implication of dust-related sources for particulate bound mercury
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, 99 Lincheng West Road, Guiyang,
550081, China
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, 99 Lincheng West Road, Guiyang,
550081, China
CAS Center for Excellence in Quaternary Science and Global Change, Institute of Earth Environment, Chinese Academy of Sciences,
Xi'an, 710061, China
State Key Laboratory of Environmental Chemistry and Ecotoxicology,
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences,
Beijing, 100085, China
Baoxin Li
China Global Atmosphere Watch Baseline Observatory, Qinghai
Meteorological Bureau, Xining, 810001, China
Peng Liu
China Global Atmosphere Watch Baseline Observatory, Qinghai
Meteorological Bureau, Xining, 810001, China
Guoqing Zhang
China Global Atmosphere Watch Baseline Observatory, Qinghai
Meteorological Bureau, Xining, 810001, China
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, 99 Lincheng West Road, Guiyang,
550081, China
CAS Center for Excellence in Quaternary Science and Global Change, Institute of Earth Environment, Chinese Academy of Sciences,
Xi'an, 710061, China
University of Chinese Academy of Sciences, Beijing, 100049, China
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Our observations of speciated atmospheric mercury at the Waliguan GAW Baseline Observatory show that concentrations of gaseous elemental mercury (GEM) and particulate bound mercury (PBM) were elevated compared to the Northern Hemisphere background. We propose that the major sources of GEM and PBM were mainly related to anthropogenic emissions and desert dust sources. This study highlights that dust-related sources played an important role in the variations of PBM in the Tibetan Plateau.
Our observations of speciated atmospheric mercury at the Waliguan GAW Baseline Observatory show...
