1. U.S Embassy Beijing Air Quality Monitor
The U.S. Embassy has an air quality monitor to measure PM 2.5 particulates on the Embassy compound as an indication of the air quality. This monitor is a resource for the health of the Mission community. Citywide analysis cannot be done, however, on data from a lone machine.

Particulates less than 2.5 micrometers in diameter (PM 2.5) are referred to as “fine” particulates and are believed to pose the largest health risks. PM 2.5 is a standard recognized by the U.S. Environmental Protection Agency and allows us to compare against U.S. standard measures. PM 2.5 particulates are of concern since they are small enough to get into the lungs and even the blood stream. For more information, please visit the EPA site http://www.epa.gov/ttn/naaqs/pm/pm25_index.html.

美國駐華大使館空氣品質監測站

美國大使館的空氣品質監測站在使館館區內通過衡量PM2.5懸浮顆粒監測空氣品質。其目的是為了給美國駐京外交人員提供健康方面的資訊。 整個城市的空氣品質是無法通過單一空氣監測站的資料得到的。

直徑2.5微米以下的懸浮顆粒(PM 2.5)被稱為“細顆粒”,並被認為對健康最為有害。PM2.5是美國國家環境保護局認可的一個標準,它可以讓我們與美國標準基準做對比。PM2.5顆粒值得關注是因為它們體積足夠微小,以至於可以進入肺部甚至血液迴圈。欲瞭解更多資訊,請訪問美國國家環境保護局網。

2. The monitor’s measurements are available on following address http://beijingair.sinaapp.com and http://www.lantiantian.com.