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  2. What Is Air Quality? When air quality is good, the air is clear and contains only small amounts of solid particle and chemical pollutants. Poor air quality, which contains high levels of pollutants, is often hazy and dangerous to health and the environment.
    scied.ucar.edu/learning-zone/air-quality/what-is-air …
    Air quality is a measure of how clean or polluted the air is. Monitoring air quality is important because polluted air can be bad for our health—and the health of the environment. Air quality is measured with the Air Quality Index, or AQI. The AQI works sort of like a thermometer that runs from 0 to 500 degrees.
    Think of the AQI as a yardstick that runs from 0 to 500. The higher the AQI value, the greater the level of air pollution and the greater the health concern. For example, an AQI value of 50 or below represents good air quality, while an AQI value over 300 represents hazardous air quality.
    www.airnow.gov/aqi/aqi-basics/
    The U.S. Air Quality Index (AQI) is EPA's index for reporting air quality. Every day the AQI tells you how clean or polluted your outdoor air is, along with associated health effects that may be of concern.
     
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    What does air quality mean?“Air quality” refers to the condition of the air within our surroundings. Good air quality pertains to the degree to which the air is clean, clear and free from pollutants such as smoke, dust and smog, among other gaseous impurities in the air. Air quality is determined by assessing a variety of pollution indicators.
    How does air quality affect outdoor activities and health?
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    Dr. Anet Varghese

    Doctor of Medicine (MBBS) · 1 years of exp

    The common sources of outdoor air pollution are emissions caused by combustion processes from motor vehicles, solid fuel burning and industry. It is associated with a number of human health effects including heart attacks, asthma attacks, bronchitis, hospital and emergency room visits, work and school days lost, restricted activity days, respiratory symptoms, and premature mortality. By reducing air pollution levels, countries can reduce the burden of disease from stroke, heart disease, lung cancer, and both chronic and acute respiratory diseases, including asthma.
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    microsoftstart.msn.com
    What is air quality & why is it important?Air quality is a measure of how clean or polluted the air is. Monitoring air quality is important because polluted air can be bad for our health—and the health of the environment. Air quality is measured with the Air Quality Index, or AQI. The AQI works sort of like a thermometer that runs from 0 to 500 degrees.
    How is air quality measured?The Short Answer: Air quality is measured with the Air Quality Index, or AQI. The AQI works like a thermometer that runs from 0 to 500 degrees. However, instead of showing changes in the temperature, the AQI is a way of showing changes in the amount of pollution in the air. A photograph showing smog over downtown Los Angeles. Credit: Public Domain
    What does a good air quality AQI mean?Each level is also assigned a corresponding color, with green representing "good" ranging to maroon representing "hazardous." If the AQI values are at or are below 100, air quality is generally deemed as satisfactory. However, once the AQI goes above that value, it is unhealthy.
    How is air quality reported?Air quality is reported using the Air Quality Index (AQI). The AQI has six categories that communicate the level of health concern using specific colors. Code Green and Yellow means the air is generally safe for everyone. Code Orange is unhealthy for sensitive groups, including children, senior citizens, and people with heart and lung diseases.
     
  4. AirNow.gov

     
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    WebAug 4, 2018 · AQI is a measurement of air pollutant concentrations and health risks in ambient air. Learn how AQI is calculated, what categories and levels mean, and how to protect yourself from air pollution.

  7. Air Quality Index (AQI) | AirNow.gov

    WebEvery day the Air Quality Index (AQI) tells you how clean or polluted your outdoor air is, along with associated health effects that may be of concern. Importance of Air Quality. Local air quality affects how you live and …

  8. Air Quality Index (AQI) Basics - AirNow

  9. Air Quality | US EPA

    WebApr 29, 2024 · Air quality is the condition of the air we breathe, which can be affected by pollution from various sources. Learn how to check air quality forecasts, what causes poor air quality, and how to improve it with EPA …

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  11. How Is Air Quality Measured? | NOAA SciJinks – All …

    WebApr 30, 2024 · Air quality is a measure of how clean or polluted the air is. Learn about the Air Quality Index (AQI), the five major air pollutants, and how satellites monitor the air quality around the world.

  12. How is air quality measured? - UNEP - UN Environment Programme

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    WebJun 29, 2023 · The Air Quality Index measures the density of five pollutants in the air: ground-level ozone, particulates, carbon monoxide, nitrogen dioxide, and sulfur dioxide. It was...

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