What determines indoor air quality?

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What determines indoor air quality?

In addition, several other factors affect indoor air quality, including the air exchange rate, outdoor climate, weather conditions, and occupant behavior. The air exchange rate with the outdoors is an important factor in determining indoor air pollutant concentrations.

What is the difference between air quality index and air quality?

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.

How do I know if my house has bad air quality?

Poor Air Quality Symptoms: 8 Ways to Tell If Your Indoor Air…

  1. Coughing or Difficulty Breathing.
  2. Sneezing or Allergic Reactions.
  3. Skin Dryness or Irritation.
  4. Headaches or Nausea.
  5. Inability to Sleep.
  6. Dust Buildup.
  7. Hot and Cold Spots.
  8. Unpleasant Odor.
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What is considered bad air quality?

ground-level ozone

  • particle pollution (also known as particulate matter,including PM2.5 and PM10)
  • carbon monoxide
  • sulfur dioxide
  • nitrogen dioxide

    • What is considered good air quality?

    Good air quality pertains to the degree 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.

    What is a good air quality index?

    – AQI is 0-50. Air quality conditions are good, and this is symbolized by the color green. Air quality poses little or no health risk. – AQI is 51-100. Air quality conditions are moderate, and this is symbolized by the color yellow. Those who are sensitive may experience some respiratory symptoms at this level. – AQI is 101-150. Air quality conditions are unhealthy for sensitive groups, and this is symbolized by the color orange. – AQI is 151-200. Air quality conditions are unhealthy, and this is symbolized by the color red. – AQI is 210-300. Air quality conditions are very unhealthy, and this is symbolized by the color purple. – AQI is 301-500. Air quality conditions are hazardous, and this is symbolized by the color maroon.

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    What is a good air quality number?

    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.

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