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BACKGROUND Ground-level concentrations of ozone (O3) and fine particulate matter [< or = 2.5 microm in aerodynamic diameter (PM2.5)] have increased since preindustrial times in urban and rural regions and are associated with cardiovascular and respiratory mortality. OBJECTIVES We estimated the global burden of mortality due to O3 and PM2.5 from(More)
Assessments of human health impacts associated with outdoor air pollution often use air quality models to represent exposure, but involve uncertainties due to coarse model resolution. Here we quantify how estimates of mortality in the United States attributable to ozone (O3) and fine particulate matter (PM2.5) at coarse resolution differ from those at finer(More)
Methane (CH(4)) contributes to the growing global background concentration of tropospheric ozone (O(3)), an air pollutant associated with premature mortality. Methane and ozone are also important greenhouse gases. Reducing methane emissions therefore decreases surface ozone everywhere while slowing climate warming, but although methane mitigation has been(More)
The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Health benefits of reducing NOx emissions in the presence of epidemiological and atmospheric nonlinearities A J Pappin, A Hakami, P Blagden et al. Abstract In September 2015, the Volkswagen Group (VW) admitted the use of 'defeat devices'(More)
BACKGROUND Tropospheric ozone and black carbon (BC), a component of fine particulate matter (PM ≤ 2.5 µm in aerodynamic diameter; PM(2.5)), are associated with premature mortality and they disrupt global and regional climate. OBJECTIVES We examined the air quality and health benefits of 14 specific emission control measures targeting BC and methane, an(More)
[1] Reducing methane (CH 4) emissions is an attractive option for jointly addressing climate and ozone (O 3) air quality goals. With multidecadal full-chemistry transient simulations in the MOZART-2 tropospheric chemistry model, we show that tropospheric O 3 responds approximately linearly to changes in CH 4 emissions over a range of anthropogenic emissions(More)
Background concentrations of tropospheric ozone are increasing and are sensitive to methane emissions, yet methane mitigation is currently considered only for climate change. Methane control is shown here to be viable for ozone management. Identified global abatement measures can reduce approximately 10% of anthropogenic methane emissions at a cost-savings,(More)
[1] Changes in emissions of ozone (O 3) precursors affect both air quality and climate. We first examine the sensitivity of surface O 3 concentrations (O 3 srf) and net radiative forcing of climate (RF net) to reductions in emissions of four precursors – nitrogen oxides (NO x), non-methane volatile organic compounds, carbon monoxide, and methane (CH 4). We(More)
This study quantifies the national burden of disease attributed to particulate matter (PM) and ozone (O(3)) in ambient air in the United Arab Emirates (UAE), a rapidly growing nation in which economic development and climatic conditions pose important challenges for air quality management. Estimates of population exposure to these air pollutants are based(More)