The database contains results of urban outdoor air pollution monitoring from almost 1100 cities in 91 countries.

这个数据库包含91个国家，几乎覆盖1100个城市的城市室外空气污染检测结果。

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Developmental prospects of the remote sensing technique in Marine environment pollution monitoring are also discussed.

对遥感技术在海洋环境污染监测中的发展前景也作了探讨。

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During the recent red alert, pollution peaked at 508 on Tuesday, according to the US Embassy's air pollution monitoring service in Beijing.

据美国驻北京大使馆的空气污染监测服务中心数据显示，北京红色预警期间，污染在星期二达到峰值508微克。

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The finished product, if ever someone actually concocts one, could be applied across a variety of fields -- everything from pollution monitoring to medicine.

ENGADGET

We saw a bevy of new gadgets and gizmos hitting the scene this week such as intelliPaper, which recently found a way to transform tiny scraps of paper into fully functional USB drives and programmable documents and CitiSense, a portable pollution monitoring system that allows you to check nearby air quality on your smartphone.

ENGADGET: Inhabitat's Week in Green: invisibility cloak, a Hobbit House and a portable washing machine

The data used came from a daily monitoring of pollution levels recorded from 2007 through 2009, as collected by the Environmental Protection Agency (EPA).

FORBES: List: America's Most Polluted Cities