Global review of national ambient air quality standards for PM10 and SO2 (24 h)(7 page pdf, Candace Vahlsing & Kirk R. Smith, Air Qual Atmos Health, Jan. 2011)
Today we review an assessment of national air quality standards for PM10 and SO2 for over 80% of the population of the world compared to guidelines issued by the United Nations through the World Health Organization. Results indicate that average national standards in place exceed those of the WHO. Also, the degree of national compliance is inversely proportional to energy use and directly proportional to observed national PM levels i.e. standards are less applied in high energy use countries and more applied where the pollution is poorer. An interesting observation when it comes to health impacts fro air pollution is that countries tend to restrict their use of these studies tot hose conducted within their country rather than extrapolate findings from other countries.
To see Key Quotes and Links to key reports about this post, click HERE