美国驻广州总领事馆有一个空气质量监测器，用来测量该领事馆所在珠江新城地区空气质量指数的PM2.5微粒。如颗粒污染物的污染物与一些显着的健康影响相连 – 这些影响可能对患心脏或肺部疾病的人、儿童和老年人等敏感人群更为严重。该监测器是美国人社区健康的一个资源。然而，从一台机器上得到的数据不能进行全市范围的分析。
直径小于2.5微米的微粒（PM2.5）被称为“微小”颗粒，它们被认为构成了最大的健康风险。PM2.5是美国环境保护局（EPA）认可的标准，让我们能够与美国的标准措施进行对比。PM2.5微粒之所以得到关注，是因为它们小到足以直接进入肺部甚至血液。有关详情，请访问环保局网站。
美国环境保护局开发了一个可以把PM2.5读数转化为空气质量指数的公式，有助于告知与健康有关的决策。比如说，空气质量指数为50代表空气质量优，对公众健康几乎没有影响。当指数为大于300时，代表有害的空气质量。值得注意的是，空气质量指数不同于在中国使用的空气污染指数。这里可了解关于空气质量指数的更多信息以及它是如何计算的。
监测的测量值以PM2.5浓度（µg/m3）的形式以及相应的空气质量指数，发布在www.stateair.net和推特上。
中国环境保护部为中国各地城市提供其自己空气质量数据。广东省环保局和广州市环保局也发布了空气质量数据。

The U.S. Consulate has an air quality monitor to measure PM 2.5 particulates as an indication of the air quality on the Consulate Guangzhou compound located in Zhujiang New Town. Pollutants such as particle pollution are linked to a number of significant health effects — and those effects are likely to be more severe for sensitive populations, including people with heart or lung disease, children, and older adults. This monitor is a resource for the health of the American community. Citywide analysis cannot be done, however, on data from a single 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 (EPA) and allows us to compare against U.S. standard measures. PM 2.5 particulates are of concern since they are small enough to directly enter the lungs and even the blood stream. For more information, please visit the EPA site.
The U.S. EPA has developed a formula to convert PM 2.5 readings into an air quality index (AQI) value than can help inform health-related decisions. For example, an AQI value of 50 represents good air quality with little potential to affect public health, while an AQI value over 300 represents hazardous air quality. Please note that AQI is different from the Air Pollution Index (API) used in China. See more information on AQI and how it is calculated.
The monitor’s measurements, expressed in the form of PM 2.5 concentration (micrograms per cubic meter, µg/m3) and corresponding AQI, are available at http://www.stateair.net/ and on Twitter.
Extremely High Levels of PM2.5: Steps to Reduce Your Exposure (Embassy Beijing)
The Guangzhou Air Quality and Consular Information App is designed to assist and inform American citizens living in or visiting south China. The app conveniently brings same day air quality PM 2.5 readings from the U.S. Consulate’s air monitor on Shamian island in Guangzhou, China. The app also provides contact information, office hours, and other details for people who need to report a missing passport or apply for a new passport. Information on visa procedures, notarial services, reports of birth abroad is also provided.The app also provides environmental protection themed content – local blogs, a “this week in environmental history” section and classic public service announcements from the 1970s.The Chinese Ministry of Environmental Protection provides its own air quality data for cities throughout China. The Guangdong Environmental Protection Department and the Guangzhou Environmental Protection Bureau also provide air quality data.
The Guangzhou Air Quality and Consular Information App is designed to assist and inform American citizens living in or visiting south China. The app conveniently brings same day air quality PM 2.5 readings from the U.S. Consulate’s air monitor on Shamian island in Guangzhou, China. The app also provides contact information, office hours, and other details for people who need to report a missing passport or apply for a new passport. Information on visa procedures, notarial services, reports of birth abroad is also provided.
The app also provides environmental protection themed content – local blogs, a “this week in environmental history” section and classic public service announcements from the 1970s.
Apple iTunes version is available at China iTunes and US store.
Android version, and (for those with VPN).