Under inversion and other weather conditions, haze is a form of urban and regional pollution, causing by aerosol.

霾在大气逆温等稳定气象条件下，由气溶胶和气体污染物造成的一种城市和区域性空气污染现象。

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Also factored out were broader variations in air quality, but "even in an area with low regional pollution, children living near a major roadway are a increased risk of health effects."

还排除了更广的空气质量的变化，但即使在污染程度较低的地区，居住在主要高速公路附近的儿童的健康更易受到危协。

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In order to create an environmentally friendly and safe world, it is necessary for each country to set vehicular quotas and limit the permits in number to control regional air pollution.

为了创造一个有益于环保和安全的世界，每个国家都有必要定出汽车限额，并限制发放许可证的数量，以控制地区的空气污染。

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Modern industrial societies have proved that--with willpower, innovation and capital--they are good at mitigating local and regional pollution.

FORBES: Magazine Article

This project makes use for the first time of high resolution simulations from a state-of-the-art regional atmospheric chemistry model to capture both urban and regional scale air pollution features.

UNESCO: 2015 For Women In Science Fellows

Other countries, too, have problems such as creaking education systems, ageing populations, ill health, pollution, poverty, bad bureaucrats, regional tensions, uncompetitive heavy industries, cash-hungry public services and terrorism.

ECONOMIST: Life for most Russians is bleak, unhealthy and short