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  2. Particulate pollution - Wikipedia

    en.wikipedia.org/wiki/Particulate_pollution

    Particulate matter (PM), particularly PM2.5, was found to be harmful to aquatic invertebrates. [41] These aquatic invertebrates include fish, crustaceans, and Mollusca. In a study by Han et al, the effects of PM<2.5 micrometers on life history traits and oxidative stress were observed in Tigriopus japonicus.

  3. Congestion pricing - Wikipedia

    en.wikipedia.org/wiki/Congestion_pricing

    Critics maintain that congestion pricing is not equitable, places an economic burden on neighboring communities, and adversely affects retail businesses and general economic activity. There is a consensus among economists that congestion pricing in crowded transportation networks, and subsequent use of the proceeds to lower other taxes, makes ...

  4. Air pollutant concentrations - Wikipedia

    en.wikipedia.org/wiki/Air_pollutant_concentrations

    As an example, a measured NO x concentration of 45 ppmv in a dry gas having 5 volume % O 2 is: 45 × ( 20.9 - 3 ) ÷ ( 20.9 - 5 ) = 50.7 ppmv of NO x. when corrected to a dry gas having a specified reference O 2 content of 3 volume %. Note: The measured gas concentration C m must first be corrected to a dry basis before using the above equation.

  5. Convention on Long-Range Transboundary Air Pollution

    en.wikipedia.org/wiki/Convention_on_Long-Range...

    The Convention has been extended by eight protocols that identify specific measures to be taken by Parties to cut their emissions of air pollutants: Protocol on Long-Term Financing of the Cooperative Programme for Monitoring and Evaluation of the Long-range Transmission of Air Pollutants in Europe (EMEP) (1984)

  6. Air quality guideline - Wikipedia

    en.wikipedia.org/wiki/Air_quality_guideline

    In terms of health effects, the guideline states that PM2.5 concentration of 10 is the lowest level at which total, cardiopulmonary and lung cancer mortality have been shown to increase with more than 95% confidence in response to long-term exposure to PM2.5. [2]

  7. The Link Between Air Pollution And Increased Type 2 Diabetes Risk

    www.aol.com/between-air-pollution-increased-type...

    Measuring less than 5% of the width of a human hair, it can cause a range of health effects from minor eye, throat and lung irritation to asthma attacks, worsening heart disease and other chronic ...

  8. Air Quality Health Index (Canada) - Wikipedia

    en.wikipedia.org/wiki/Air_Quality_Health_Index...

    The national AQHI is based on three-hour average concentrations of ground-level ozone (O 3), nitrogen dioxide (NO 2), and fine particulate matter (PM2.5). O 3 and NO 2 are measured in parts per billion (ppb) while PM2.5 is measured in micrograms per cubic metre (μg/m 3).

  9. NowCast (air quality index) - Wikipedia

    en.wikipedia.org/wiki/NowCast_(air_quality_index)

    PM 2.5 AQI of US monitors, calculated utilizing NowCast, courtesy US EPA PM2.5 AQI map, calculated utilizing NowCast, courtesy US EPA. The PM (particulate matter) NowCast is a weighted average of hourly air monitoring data used by the United States Environmental Protection Agency (USEPA) for real-time reporting of the Air Quality Index (AQI) for PM (PM 10 - particles less than 10 micrometers ...