Winter Heating or Clean Air? Unintended Impacts of China's Huai River Policy
利用1981-1993年数据，发现中国淮河政策导致北方空气总悬浮颗粒物浓度远超国家标准，是美国的五倍，揭示了供暖政策对空气质量的意外负面影响。
Air quality in China is notoriously poor. Ambient concentrations of Total Suspended Particulates (TSP) 1981-1993 were more than double China’s National Annual Mean Ambient Air Quality Standard of 200 mg/m-3 (Xiaohui Bi et al., 2007) and five times the level that prevailed in the U.S. before passage of the Clean Air Act in 1970. Further, it is frequently claimed that air quality is especially poor in northern Chinese cites. For example, following a career in the southern city of Shanghai, Prime Minister Zhu Rongi quipped in 1999: “If I work in your Beijing [in northern China], I would shorten my life at least five years” (The Economist, 2004, pp. 55-57).