Examining the Global Impact of Local/Regional Air Pollution: The Role of Global Chemical Transport Models

摘要: The environmental impact of chemically reactive air pollutants on both local quality (smog) and the regional ecosystem (acid rain) is well established. chemical meteorological models used to study these problems are known most at this conference. On a larger scale potential impacts pollution global environment, direct (air quality, sulfur nitrogen budgets) indirect (atmospheric reactivity, climate). Pollution sources SO2, NOx CO form major component respective budgets (e.g. Logan et al., 1981; Logan, 1983). Moreover, concentrations, in polluted cities remote troposphere, play dominant role tropospheric ozone production Isaksen, 1988), indirectly control oxidative power i.e. its ability cleanse itself greenhouse gases such as methane. Gaseous levels over ocean may have impact, via CCN levels, cloudiness climate (Charlson 1988).