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  2. Air pollution - Wikipedia

    en.wikipedia.org/wiki/Air_pollution

    Air pollution is the presence of substances in the atmosphere that are harmful to humans and other living beings, or cause damage to the environment. Air pollution can be chemical, physical or biological. [1]

  3. Air Pollution Index - Wikipedia

    en.wikipedia.org/wiki/Air_Pollution_Index

    The air quality in Malaysia is reported as the API (Air Pollutant Index) or in Malay as IPU (Indeks Pencemaran Udara). Four of the index's pollutant components (i.e., carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide) are reported in ppmv but PM 2.5 particulate matter is reported in μg/m 3.

  4. Air pollution in Malaysia - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_Malaysia

    Air pollution has been an ongoing problem in many countries in the Southeast Asia region, and Malaysia is one of the worst affected. Haze has been a major issue for the country, driven by slash and burn practices by farmers and peat fires blown by the wind from Indonesia.

  5. Particulate pollution - Wikipedia

    en.wikipedia.org/wiki/Particulate_pollution

    Average global distribution of particulate matter (PM2.5) concentrations (2001-2006) Atmospheric particulate matter, also known as particulate matter, or PM, describes solids and/or liquid particles suspended in a gas, most commonly the Earth's atmosphere. [1]

  6. 2015 Southeast Asian haze - Wikipedia

    en.wikipedia.org/wiki/2015_Southeast_Asian_haze

    The 2015 Southeast Asian haze was an air pollution crisis affecting several countries in Southeast Asia, including Brunei, Indonesia (especially its islands of Sumatra and Borneo), Malaysia, Singapore, southern Thailand, Vietnam, Cambodia and the Philippines.

  7. Density of air - Wikipedia

    en.wikipedia.org/wiki/Density_of_air

    The density of air or atmospheric density, denoted ρ, [1] is the mass per unit volume of Earth's atmosphere.Air density, like air pressure, decreases with increasing altitude.

  8. Contamination - Wikipedia

    en.wikipedia.org/wiki/Contamination

    Within the sciences, the word "contamination" can take on a variety of subtle differences in meaning, whether the contaminant is a solid or a liquid, [3] as well as the variance of environment the contaminant is found to be in. [2] A contaminant may even be more abstract, as in the case of an unwanted energy source that may interfere with a process. [2]

  9. Udara - Wikipedia

    en.wikipedia.org/wiki/Udara

    Udara is a genus of butterflies in the family Lycaenidae. The species are found in the Indomalayan and the Australasian realms. Male Udara dilecta from Thailand, type species of the genus