• Thumbnail for Particulate matter
    Particulate matter (PM) or particulates are microscopic particles of solid or liquid matter suspended in the air. An aerosol is a mixture of particulates...
    219 KB (20,463 words) - 12:12, 18 July 2025
  • Thumbnail for Diesel particulate filter
    A diesel particulate filter (DPF) is a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine. Wall-flow...
    35 KB (4,155 words) - 01:21, 6 July 2025
  • Thumbnail for Diesel exhaust
    premature deaths. Methods exist to reduce nitrogen oxides (NOx) and particulate matter (PM) in the exhaust. Some countries have set a date to stop selling...
    66 KB (6,781 words) - 05:37, 19 July 2025
  • in the database is represented by the annual mean concentration of particulate matter (PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometers...
    45 KB (130 words) - 09:32, 24 June 2025
  • Thumbnail for Air pollution
    chronic obstructive pulmonary disease (COPD), asthma and lung cancer. Particulate matter is the most deadly, both for indoor and outdoor air pollution. Ozone...
    145 KB (13,956 words) - 06:21, 19 July 2025
  • Suspended particulate matter can refer to: Particulates, atmospheric aerosol particles Suspended solids, colloidal suspensions in water in general Total...
    280 bytes (68 words) - 00:27, 29 September 2021
  • an indicator of heavy pollution. List of most-polluted cities by particulate matter concentration List of countries by air pollution Air quality monitoring...
    32 KB (163 words) - 11:33, 27 June 2025
  • Thumbnail for Particulate organic matter
    Particulate organic matter (POM) is a fraction of total organic matter operationally defined as that which does not pass through a filter pore size that...
    55 KB (6,456 words) - 21:18, 16 June 2025
  • suspended in some medium. There are three primary forms: atmospheric particulate matter, marine debris, and space debris. Some particles are released directly...
    28 KB (2,990 words) - 01:43, 6 July 2025
  • Thumbnail for List of countries by air pollution
    List of countries by air pollution (category Particulates)
    of the world according to their average measured concentration of particulate matter (PM2.5) in micrograms per cubic meter (μg/m3). The World Health Organization's...
    21 KB (329 words) - 23:00, 21 May 2025
  • Thumbnail for Fossil fuel power station
    Particulate matter from coal-fired plants can be harmful and have negative health impacts. Studies have shown that exposure to particulate matter is...
    52 KB (5,864 words) - 02:07, 10 July 2025
  • Thumbnail for Pig farming
    through the air on particulate matter and increase the risk of transmission of disease. OSHA requires that toxic gas and particulate matter be measured at...
    41 KB (4,495 words) - 02:46, 14 July 2025
  • A particulate matter sampler is an instrument for measuring the properties (such as mass concentration or chemical composition) of particulates in the...
    5 KB (578 words) - 21:40, 11 October 2024
  • Thumbnail for Exhaust gas
    nitrogen oxides (NOx) from excessive combustion temperatures, and particulate matter (mostly soot) from incomplete combustion. Exhaust gas temperature...
    32 KB (3,412 words) - 00:54, 6 July 2025
  • Thumbnail for Wildfire
    vapor, particulate matter, organic chemicals, nitrogen oxides and other compounds. The principal health concern is the inhalation of particulate matter and...
    202 KB (20,310 words) - 15:36, 12 July 2025
  • Thumbnail for Air pollution in Delhi
    spiked far beyond acceptable levels. The levels of PM2.5 and PM 10 particulate matter hit 999 micrograms per cubic meter, well above their respective 24-hour...
    59 KB (5,814 words) - 20:22, 20 July 2025
  • Thumbnail for Soot
    carcinogenic properties. Most broadly, the term includes all the particulate matter produced by this process, including black carbon and residual pyrolysed...
    24 KB (2,720 words) - 08:40, 15 July 2025
  • Thumbnail for Hopper (particulate collection container)
    pyramidal or conical container used in industrial processes to hold particulate matter or flowable material of any sort (e.g. dust, gravel, nuts, or seeds)...
    4 KB (438 words) - 19:28, 22 April 2025
  • Power tools can produce large amounts of particulates, including ultrafine particles. Airborne particulate matter is a Group 1 carcinogen. Power tools are...
    28 KB (2,376 words) - 02:55, 6 June 2025
  • Thumbnail for Brain health and pollution
    analyses, exposure to harmful particulates caused lower game scores. Airborne particulate matter is a Group 1 carcinogen. Particulates are the most harmful form...
    69 KB (6,977 words) - 17:41, 17 July 2025
  • Thumbnail for Particle
    aerosol. Particles may also be suspended in the form of atmospheric particulate matter, which may constitute air pollution. Larger particles can similarly...
    18 KB (1,643 words) - 11:01, 8 July 2025
  • Thumbnail for Aerosol
    term aerosol commonly refers to the mixture of particulates in air, and not to the particulate matter alone. Examples of natural aerosols are fog, mist...
    47 KB (5,954 words) - 11:19, 16 July 2025
  • Ultrafine particles (UFPs) are particulate matter of nanoscale size (less than 0.1 μm or 100 nm in diameter). Regulations do not exist for this size class...
    27 KB (2,564 words) - 02:13, 6 July 2025
  • Thumbnail for Non-exhaust emissions
    Very fine particulate matter has been linked to cardiovascular disease. Multiple epidemiological studies have demonstrated that particulate matter exposure...
    12 KB (1,139 words) - 00:22, 20 May 2025
  • Water Authority Particulates Farahat, A.; Abuelgasim, A. (2022-02-01). "Effect of cloud seeding on aerosol properties and particulate matter variability in...
    19 KB (2,488 words) - 19:20, 17 July 2025
  • Thumbnail for Smoke
    [citation needed] The visible particulate matter in such smokes is most commonly composed of carbon (soot). Other particulates may be composed of drops of...
    62 KB (6,469 words) - 12:15, 27 June 2025
  • Thumbnail for Catalytic converter
    converters are still used on lean-burn engines[citation needed] to oxidize particulate matter and hydrocarbon emissions (including diesel engines, which typically...
    56 KB (6,754 words) - 00:32, 6 July 2025
  • Thumbnail for Composition of electronic cigarette aerosol
    is made up of fine and ultrafine particles of particulate matter. Vaping generates particulate matter 2.5 μm or less in diameter (PM2.5), but at notably...
    131 KB (12,859 words) - 02:12, 11 July 2025
  • Thumbnail for Air pollution in India
    dioxide (SO2), oxides of nitrogen (NOx), suspended particulate matter (SPM) and respirable particulate matter (PM10). These are target air pollutants for regular...
    47 KB (5,232 words) - 15:35, 17 July 2025
  • Thumbnail for Air quality index
    four air pollutants: ozone; nitrogen dioxide; sulfur dioxide and particulate matter (including PM10 and PM2.5). For any given hour the AQHI is calculated...
    65 KB (4,818 words) - 05:35, 10 July 2025