It's a complicated technical issue and it's difficult to know what you're looking for.But there are a few easy ways to check for air pollution near your house.Read on to learn more.

空气污染是很复杂的技术问题，很难测定出来，但有几种简易方法来检测房屋附近的空气污染度。

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Check air pollution conditions several times a day.

一天能查上好几次空气污染情况。

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Asked about China's environmental pollution, Fu said that every morning she draws the curtains to check whether there is haze.

当被问及中国的环境污染时，傅莹说她每天早上拉开窗帘都要看一下今天有没有雾霾。

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But a few days later, I whizzed through the pollution check for my ancient car at the Seattle testing station in just 13 minutes.

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Nature groups like the National Fish and Wildlife Foundation and government-funded research organizations such as Connecticut Sea Grant and the Long Island Sound Study sponsored Mr. Yarish's seaweed project to show how seaweed can keep nutrient pollution in check.

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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.

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