Millions of children living in the world’s largest cities, particularly in developing countries, are exposed to life-threatening air pollution two to eight times above the maximum World Health Organization (WHO) guidelines.
Given the projected growth of cities and the relatively young average age of their populations, regional and international efforts to control air pollution are of increasing importance. Pollution does not discriminate between nations; efforts need to concentrate on standardizing monitoring and data collection methods and on information sharing. Actions to promote energy efficiency, especially in transport and energy sectors, will have collateral benefits to protecting the health of millions of children.
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