The effects of air pollution are worst in the developing world, where in some places lost-labor income equals nearly 1% of GDP.

发展中国家受空气污染影响最为严重，在一些地区，劳动力收入损失几乎相当于国内生产总值的1%。

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A growing number of studies look at the long-term health effects of air pollution.

关注空气污染对健康长期影响的研究越来越多。

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Objective To study the effects of air pollution on non-special immunity function of pupils.

目的探讨大气污染对小学生非特异性免疫功能的影响。

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Anyone viewing the smoggy images of major Chinese cities recently would certainly think otherwise with Chinese entrepreneurs selling cans of fresh air to ease the effects of air pollution.

FORBES: Why China Cannot Solve Its Pollution Problem

Janice Nolen, national policy adviser at the American Lung Association, says that rather than dealing with the harmful effects of air pollution, the focus should be on tackling the problem at source.

CNN: Smog-eating tiles gobble up air pollution

The Department of Environment, Food and Rural Affairs said even though air quality in the UK is "generally good, more needs to be done, especially in the cities, to reduce the harmful effects of air pollution".

BBC: Traffic fumes linked to lower birth weight