Observed decrease in atmospheric mercury explained by global decline in anthropogenic emissions

Observed decrease in atmospheric mercury explained by global decline in anthropogenic emissions

Observations of elemental mercury (Hg⁰) at sites in North America and Europe show large decreases (∼1–2% y⁻¹) from 1990 to present. Observations in background northern hemisphere air, including Mauna Loa Observatory (Hawaii) and CARIBIC (Civil Aircraft for the Regular Investigation of the atmosphere...

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Veröffentlicht in:Proceedings of the National Academy of Sciences - PNAS 2016-01, Vol.113 (3), p.526-531
Hauptverfasser: Zhang, Yanxu, Jacob, Daniel J., Horowitz, Hannah M., Chen, Long, Amos, Helen M., Krabbenhoft, David P., Slemr, Franz, St. Louis, Vincent L., Sunderland, Elsie M.
Format: Artikel
Sprache:eng
Schlagworte:
Air Pollutants - analysis
Air Pollution - analysis
Atmosphere
Atmosphere - chemistry
Coal
Emissions
Human Activities
Humans
Internationality
Mercury
Mercury - analysis
Mining
Physical Sciences
Simulation
United States
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Zusammenfassung:Observations of elemental mercury (Hg⁰) at sites in North America and Europe show large decreases (∼1–2% y⁻¹) from 1990 to present. Observations in background northern hemisphere air, including Mauna Loa Observatory (Hawaii) and CARIBIC (Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container) aircraft flights, show weaker decreases (
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.1516312113