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Beijing Air Quality Current Reading | Beijing, China - Embassy of the United States
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Beijing Air Quality Current Reading
Beijing Air Quality Current Reading
Translation:
U.S Embassy Beijing Air Quality Monitor
U.S. Embassy
has an air quality
monitor to measure PM 2.5 particulates as an indication of the air quality on the Embassy
compound located in Chaoyang district.& 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
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 .
U.S. EPA has developed a formula to convert PM 2.5 readings into an air quality
index (AQI) value that 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. For more information on AQI and how it is calculated, please click .
monitor's&measurements, expressed in the form of PM 2.5 concentration
(micrograms per cubic meter, &g/m3) and corresponding AQI, are
available on&&.
Air Quality Index& (AQI)&
Health Effects Statement
Cautionary Statement
Good&(0-50)
PM2.5 air pollution poses little or no risk.
Moderate(51-100)
Unusually sensitive individuals may experience respiratory symptoms.
Unusually sensitive people should consider reducing prolonged or heavy exertion.
Unhealthy for Sensitive Groups&(101-150)
Increasing likelihood of respiratory symptoms in sensitive individuals, aggravation of heart or lung disease and premature mortality in persons with cardiopulmonary disease and the elderly.
People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.
Unhealthy&&&&&&&&(151-200)
Increased aggravation of heart or lung disease and premature mortality in persons with cardiopulmonary dis increased respiratory effects in general population.
People with heart or lung disease, older adults, and children should avoid prolong everyone else should reduce prolonged or heavy exertion.
Very Unhealthy&(201-300)
Significant aggravation of heart or lung disease and premature mortality in persons with cardiopulmonary dis significant increase in respiratory effects in general population.
People with heart or lung disease, older adults, and children should avoid all physical activity outdoors. Everyone else should avoid prolonged or heavy exertion.
Hazardous&(301-500)
Serious aggravation of heart or lung disease and premature mortality in persons with cardiopulmonary dis serious risk of respiratory effects in general population.
Everyone should avoid all physic people with heart or lung disease, older adults, and children should remain indoors and keep activity levels low.
Chinese Ministry of Environmental Protection provides its own air quality data for
cities throughout China.& You can view this information at . (In Chinese)
More Air Quality Information
Latest Air Quality for Beijing
Date pollutant
AQI; definition.
This site is managed by the U.S. Department of State. External links to other Internet sites should not be construed as an endorsement of the views or privacy policies contained therein.Net Monitor使用简介_图文_百度文库
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