It was caused by local pollution.

酸雨主要是局地污染造成。

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"Clean coal" is a term coined by the industry decades ago, referring to its efforts to reduce local pollution.

“清洁煤”是由行业在几十年前创造的术语，指行业为了减少当地的污染而作的努力。

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Lucchini's team, which had already planned to examine 300 middle schoolers for neural effects of local pollution, included a smell assay in the tests.

卢基尼小组已计划对三百名中学生做检查，分析当地污染物对其神经造成的影响，这些检查包括嗅觉测试。

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The U.S.Environmental Protection Agency,or EPA, lists stormwater as the primary cause of water pollution in the United States, and encourages local communities to develop management plans to treat run-off before it pollutes their rivers, lakes or streams.

VOA: standard.2010.08.04

China's rulers recognise that they face serious consequences from local pollution and from changes to the global climate.

ECONOMIST: Smelly China is poised to outdo dirty America

China's rulers should meanwhile note that, besides cooking the climate, aviation also causes local pollution, which poor countries suffer more grievously than rich ones.

ECONOMIST: Planes and pollution

Boosting energy-efficiency and the use of renewables not only helps secure energy supplies and cuts local pollution, but also helps keep carbon emissions in check too.

ECONOMIST: China, India and climate change