When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. 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.

  3. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    An air quality index (AQI) is an indicator developed by government agencies [1] to communicate to the public how polluted the air currently is or how polluted it is forecast to become.

  4. Indoor air quality - Wikipedia

    en.wikipedia.org/wiki/Indoor_air_quality

    For health reasons it is crucial to breathe clean air, free from chemicals and toxicants as much as possible. It is estimated that humans spend approximately 90% of their lifetime indoors [8] and that indoor air pollution in some places can be much worse than that of the ambient air.

  5. Kovats retention index - Wikipedia

    en.wikipedia.org/wiki/Kovats_retention_index

    The Kovats index applies to organic compounds.The method interpolates peaks between bracketing n-alkanes.The Kovats index of n-alkanes is 100 times their carbon number, e.g. the Kovats index of n-butane is 400.

  6. Depok - Wikipedia

    en.wikipedia.org/wiki/Depok

    Depok (Sundanese: ᮓᮨᮕᮧᮊ᮪) is a landlocked city in West Java province. It is located directly south of Jakarta, it is the third largest urban centre in the Greater Jakarta metropolitan area after Jakarta and Bekasi and it has an area of 199.91 km 2.

  7. Air-to-cloth ratio - Wikipedia

    en.wikipedia.org/wiki/Air-to-cloth_ratio

    The air-to-cloth ratio is the volumetric flow rate of air (m 3 /minute; SI m 3 /second) flowing through a dust collector's inlet duct divided by the total cloth area (m 2) in the filters.

  8. List of Indonesian cities by GDP - Wikipedia

    en.wikipedia.org/wiki/List_of_Indonesian_cities...

    GRP Nominal is the regional or provincial counterpart of the national gross domestic product, the most comprehensive measure of national economic activity.The Statistics Indonesia (Badan Pusat Statistik) derives GRP for a province as the sum of the GRP Nominal originating in all the industries in the province at current prices market.

  9. International roughness index - Wikipedia

    en.wikipedia.org/wiki/International_roughness_index

    Roughness progression for a road in Texas, US. Blue dots show the times of maintenance. The international roughness index (IRI) is the roughness index most commonly obtained from measured longitudinal road profiles.