Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Intercontinental impacts of ozone pollution on human mortality.
AU - Casper-Anenberg, Susan
AU - West, J.Jason
AU - Fiore, Arlene M.
AU - Jaffe, Daniel A.
AU - Prather, Michael J.
AU - Bergmann, Daniel
AU - Cuvelier, Kees
AU - Dentener, Frank J.
AU - Duncan, Bryan N.
AU - Gauss, Michael
AU - Hess, Peter
AU - Jonson, Jan Eiof
AU - Lupu, Alexandru
AU - MacKenzie, Ian A.
AU - Marmer, Elina
AU - Park, Rokjin J.
AU - Sanderson, Michael G.
AU - Schultz, Martin
AU - Shindell, Drew T.
AU - Szopa, Sophie
AU - Vivanco, Marta G.
AU - Wild, Oliver
AU - Zeng, Guang
PY - 2009/9/1
Y1 - 2009/9/1
N2 - Ozone exposure is associated with negative health impacts, including premature mortality. Observations and modeling studies demonstrate that emissions from one continent influence ozone air quality over other continents. We estimate the premature mortalities avoided from surface ozone decreases obtained via combined 20% reductions of anthropogenic nitrogen oxide, non-methane volatile organic compound, and carbon monoxide emissions in North America (NA), East Asia (EA), South Asia (SA), and Europe (EU). We use estimates of ozone responses to these emission changes from several atmospheric chemical transport models combined with a health impact function. Foreign emission reductions contribute approximately 30%, 30%, 20%, and >50% of the mortalities avoided by reducing precursor emissions in all regions together in NA, EA, SA, and EU, respectively. Reducing emissions in NA and EU avoids more mortalities outside the source region than within, owing in part to larger populations in foreign regions. Lowering the global methane abundance by 20% reduces mortality most in SA, followed by EU, EA, and NA. For some source−receptor pairs, there is greater uncertainty in our estimated avoided mortalities associated with the modeled ozone responses to emission changes than with the health impact function parameters.
AB - Ozone exposure is associated with negative health impacts, including premature mortality. Observations and modeling studies demonstrate that emissions from one continent influence ozone air quality over other continents. We estimate the premature mortalities avoided from surface ozone decreases obtained via combined 20% reductions of anthropogenic nitrogen oxide, non-methane volatile organic compound, and carbon monoxide emissions in North America (NA), East Asia (EA), South Asia (SA), and Europe (EU). We use estimates of ozone responses to these emission changes from several atmospheric chemical transport models combined with a health impact function. Foreign emission reductions contribute approximately 30%, 30%, 20%, and >50% of the mortalities avoided by reducing precursor emissions in all regions together in NA, EA, SA, and EU, respectively. Reducing emissions in NA and EU avoids more mortalities outside the source region than within, owing in part to larger populations in foreign regions. Lowering the global methane abundance by 20% reduces mortality most in SA, followed by EU, EA, and NA. For some source−receptor pairs, there is greater uncertainty in our estimated avoided mortalities associated with the modeled ozone responses to emission changes than with the health impact function parameters.
U2 - 10.1021/es900518z
DO - 10.1021/es900518z
M3 - Journal article
VL - 43
SP - 6482
EP - 6487
JO - Environmental Science and Technology
JF - Environmental Science and Technology
SN - 0013-936X
IS - 17
ER -