Measurements and Analysis Research Section, Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, M3H 5T4, Canada
Measurements and Analysis Research Section, Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, M3H 5T4, Canada
Measurements and Analysis Research Section, Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, M3H 5T4, Canada
Alexandra Steffen
Processes Research Section, Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, M3H 5T4, Canada
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Total article views: 1,780 (including HTML, PDF, and XML)
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1,467
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1,780
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Supplement: 114
BibTeX: 59
EndNote: 66
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288
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Total article views: 2,327 (including HTML, PDF, and XML)
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Total article views: 1,780 (including HTML, PDF, and XML)
Thereof 1,678 with geography defined
and 102 with unknown origin.
Total article views: 547 (including HTML, PDF, and XML)
Thereof 539 with geography defined
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Using the positive matrix factorization (PMF) model and observations, we showed that natural surface emission (wildfires and re-emitted Hg) dominated anthropogenic contributions to total gaseous mercury (TGM). Decreasing TGM was due to reduced shipping, local combustion, and regional emissions. Relative contributions from natural surface emissions increased by 0.3–1.8 % yr-1. Results showed Hg control measures have been effective, but greater attention is needed for monitoring surface re-emissions.
Using the positive matrix factorization (PMF) model and observations, we showed that natural...