Abstract：
Air pollution is a leading cause of death globally and has resulted in the loss of millions of healthy years of life. Moreover, the health burden has fallen disproportionately upon people in many low- and middle-income countries, where air quality continues to deteriorate. To assist authorities and civil society in improving air quality, World Health Organization has published the first global update to its 2005 air quality guidelines based on a significantly improved body of evidence. To facilitate the implementation of the World Health Organization Global Air Quality Guideline recommendations, this article summarizes the purpose and rationale of the quantitative air quality guidelines and interim target levels for six key pollutants: particulate matter 2.5, particulate matter 10, sulfur dioxide, nitrogen dioxide, ozone, and carbon monoxide. In addition, good practice statements are established for the management of pollutants of concern that lack sufficient evidence to substantiate numerical targets.
摘要：
空气污染是全球死亡的主要原因，并已导致数百万健康年的生命损失。此外，在许多低收入和中等收入国家，人们的健康负担不成比例地下降，空气质量持续恶化。协助当局和民间社会改善空气质量，世界卫生组织发布了其2005年空气质量指南的第一个全球更新，该指南基于一个显著改进的证据。为了促进世界卫生组织全球空气质量准则建议的实施，本文总结了空气质量定量指南和六种关键污染物的临时目标水平的目的和原理：颗粒物2.5，颗粒物10，二氧化硫，二氧化氮,臭氧,还有一氧化碳.此外,良好做法声明是为缺乏足够证据证明数字目标的关注污染物的管理而制定的。
