1. Particulates - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Particulates‎
    Wikipedia
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    ... stringent standards. The CCME standard for particulate matter 2.5 (PM2.5) is 30 μg/m3 (daily average, i.e. 24-hour period, 3 year average, 98th percentile).
    ‎Sources of atmospheric ... - ‎Composition - ‎Deposition processes

  2. Particle Pollution (PM10) and (PM2.5) - AIRNow

    airnow.gov/index.cfm?action=aqibasics.particle‎
    Particle Pollution (PM10) and (PM2.5) - This page supplies information and resources to particle pollution.

  3. Frequent Questions | Fine Particle (PM2.5) Designations | US EPA

    www.epa.gov › ... › Particulate Matter‎
    United States Environme...
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    You are here: EPA Home · Air & Radiation · Six Common Pollutants · Particulate Matter · Fine particle (PM2.5) Designations; Frequent Questions ...

  4. Beijing Air Pollution: Real-time PM2.5 Air Quality Index (AQI)

    aqicn.org/‎
    PM2.5 AQI. Beijing PM25 (fine particulate matter) measured by Beijing Environmental Protection Monitoring Center (北京, 501, 85, 501. PM10 AQI. Beijing PM10 ...

  5. Air Info Now: What is Particulate Matter

    www.airinfonow.org/html/ed_particulate.html‎
    These particles are called PM2.5 (we say "P M two point five", as in Particulate Matter up to 2.5 micrometers in size). Where particulate matter comes from .

  6. Fine Particles (PM 2.5) Questions and Answers

    https://www.health.ny.gov/.../air/pmq_a.htm‎
    New York State Departme...
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    Fine Particles (PM 2.5) Questions and Answers. Fine particulate matter (PM2.5) is an air pollutant that is a concern for people's health when levels in air are high.

  7. Fine Particulate Matter - Air Quality Ontario

    www.airqualityontario.com › Information › Monitoring System‎
    Fine Particulate Matter. What is fine particulate matter? Particulate matter is characterized according to size - mainly because of the different health effects ...

  8. PSI Reading - National Environment Agency

    www.nea.gov.sg/psi/‎
    National Environment Ag...
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    Feb 13, 2014 - Temp | Wind | Rainfall | Humidity | UV Index. 24hr PSI & PM2.5 Concentrations. at 11 PM on 20 Feb 14. 24-hr PSI: 24-30, 3-hr PSI: 29 at 11 PM ...

  9. PM2.5: Invisible Killer - CNTV English

    english.cntv.cn/special/pm25/index.shtml‎
    CCTV News
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    Air monitoring data from the US Embassy in Beijing started circulating on micro blogs suggesting the density of PM2.5 was about 250 to 350 on Oct 30, 2011.

  10. PM2.5分布予測 - 日本気象協会 tenki.jp

    guide.tenki.jp/guide/particulate_matter/‎
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    健康への影響が懸念されるPM2.5(微小粒子状物質)の分布を日本気象協会の独自気象予測モデルなどを用いて、当日から3日先までのPM2.5の傾向を予測しています。