Ozone air quality and radiative forcing consequences of changes in ozone precursor emissions
Ozone air quality and radiative forcing consequences of changes in ozone precursor emissions
复制标题
臭氧空气质量和臭氧前体排放变化的辐射强迫后果
DOI：
10.1029/2006gl029173
复制
发表时间：
2007
影响因子：
5.2
通讯作者：
D. Mauzerall
中科院分区：
文献类型：
--
作者：
J. West;A. Fiore;V. Naik;L. Horowitz;M. Schwarzkopf;D. Mauzerall
Changes in emissions of ozone (O3) precursors affect both air quality and climate. We first examine the sensitivity of surface O3 concentrations (O3srf) and net radiative forcing of climate (RFnet) to reductions in emissions of four precursors – nitrogen oxides (NOx), non‐methane volatile organic compounds, carbon monoxide, and methane (CH4). We show that long‐term CH4‐induced changes in O3, known to be important for climate, are also relevant for air quality; for example, NOx reductions increase CH4, causing a long‐term O3 increase that partially counteracts the direct O3 decrease. Second, we assess the radiative forcing resulting from actions to improve O3 air quality by calculating the ratio of ΔRFnet to changes in metrics of O3srf. Decreases in CH4 emissions cause the greatest RFnet decrease per unit reduction in O3srf, while NOx reductions increase RFnet. Of the available means to improve O3 air quality, therefore, CH4 abatement best reduces climate forcing.
