Main indoor air pollutants: Difference between revisions
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== Indoor air particles == | == Indoor air particles == | ||
[[Particulate matter|'''Particulate matter''']] (PM) is a mixture of solid particles and liquid droplets suspended in the air. These particles vary in size, composition, and origin, and | [[Particulate matter|'''Particulate matter''']] (PM) is a mixture of solid particles and liquid droplets suspended in the air. These particles vary in size, composition, and origin, and their effects on human health depend on these characteristics. | ||
PM is classified by its aerodynamic diameter, which is the size of a unit-density sphere with the same aerodynamic properties as the particle. | PM is classified by its aerodynamic diameter, which is the size of a unit-density sphere with the same aerodynamic properties as the particle. | ||
=== Coarse particles (PM<sub>10</sub>) === | |||
Coarse particles are inhalable particles, with diameters that are generally 10 micrometers and smaller. | |||
=== Fine particles (PM<sub>2.5</sub>) === | |||
Fine particles are inhalable particles, with diameters that are generally 2.5 micrometers and smaller. Due to their small size, they can penetrate deep into the respiratory tract, reaching the lungs. | |||
=== Ultrafine particles (PM<sub>0.1</sub> ) === | |||
Ultrafine particles are | |||
== Concentration limit values for main air pollutants == | == Concentration limit values for main air pollutants == | ||
Revision as of 11:12, 5 June 2024
Indoor air chemical pollutants
Very volatile organic compounds
Very volatile organic compounds (VVOCs)
Volatile organic compounds
Volatile organic compounds (VOCs) are a large group of chemicals that easily become gases or vapors at room temperature. They are found in many common household products and building materials, and they can have a significant impact on indoor air quality (IAQ).
Semi-volatile organic compounds
Semi-volatile organic compounds (SVOCs)
Indoor air particles
Particulate matter (PM) is a mixture of solid particles and liquid droplets suspended in the air. These particles vary in size, composition, and origin, and their effects on human health depend on these characteristics.
PM is classified by its aerodynamic diameter, which is the size of a unit-density sphere with the same aerodynamic properties as the particle.
Coarse particles (PM10)
Coarse particles are inhalable particles, with diameters that are generally 10 micrometers and smaller.
Fine particles (PM2.5)
Fine particles are inhalable particles, with diameters that are generally 2.5 micrometers and smaller. Due to their small size, they can penetrate deep into the respiratory tract, reaching the lungs.
Ultrafine particles (PM0.1 )
Ultrafine particles are
Concentration limit values for main air pollutants
| Pollutant | |||
|---|---|---|---|
| Benzene | |||
| Naphthalene | |||
| Polycyclic aromatic hydrocarbons | |||
| Tetrachloroethylene | |||
| Trichloroethylene | |||
| PM0.1 | |||
| PM2.5 | |||
| PM10 | |||
| Radon | |||
| O3 | |||
| NO2 | |||
| CO |