MMWR Morb Mortal Wkly Rep. 1994 Apr 29;43(16):290-3.
Despite improvements in air quality since the 1970s, air pollution remains an important environmental risk to human health. A national health objective for the year 2000 is to reduce exposure to air pollutants so that at least 85% of persons live in counties that meet U.S. Environmental Protection Agency (EPA) standards (objective 11.5). This report provides estimates from the American Lung Association (ALA) of populations potentially at risk from exposure to particulate air pollution in the United States during 1992.
尽管自20世纪70年代以来空气质量有所改善，但空气污染仍然是对人类健康的一个重要环境风险。2000年的一项国家卫生目标是减少对空气污染物的暴露，以便至少85%的人生活在符合美国环境保护局（EPA）标准的县（目标11.5）。本报告提供了美国肺脏协会（ALA）对1992年期间美国可能因接触空气中的颗粒物污染而面临风险的人群的估计。
