Only 11 of 91 countries meet WHO standard on air quality

BMJ 2011; 343 doi: (Published 27 September 2011) Cite this as: BMJ 2011;343:d6210
  1. John Zarocostas
  1. 1Geneva

Outdoor air pollution in cities, especially in poor and rapidly developing countries, have reached levels that pose a serious threat to people’s health, says a study by the World Health Organization that was based on data from nearly 1100 cities in 91 countries.

“We hope this will generate some public pressure,” said Maria Neira, WHO’s director for public health and the environment.

Dr Neira said that effective interventions to reduce air pollution would also help reduce the cost of hospitalisation of people who have chronic diseases attributable to poor air quality.

WHO says that PM10 …

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