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  2. Air quality guideline - Wikipedia

    en.wikipedia.org/wiki/Air_quality_guideline

    For ozone (O 3), the guidelines suggest values no higher than 100 μg/m 3 for an 8-hour mean and 60 μg/m 3 peak season mean. [2] For nitrogen dioxide (NO 2), the guidelines set 10 μg/m 3 for the annual mean or 25 μg/m 3 for a 24-hours mean. [2] For sulfur dioxide (SO 2), the guidelines stipulate concentrations not exceeding 40 μg/m 3 24 ...

  3. Air pollution - Wikipedia

    en.wikipedia.org/wiki/Air_pollution

    This would save about $600 billion in health costs a year due to reduced air pollution in 2050, or about 3.6% of the 2014 U.S. gross domestic product. [286] Air quality improvement is a near-term benefit among the many societal benefits from climate change mitigation.

  4. Pollution - Wikipedia

    en.wikipedia.org/wiki/Pollution

    Air pollution control system, known as a thermal oxidizer, decomposes hazard gases from industrial air streams at a factory in the United States. A dust collector in Pristina, Kosovo. Pollution control is a term used in environmental management. It refers to the control of emissions and effluents into air, water or soil.

  5. Climate and Clean Air Coalition to Reduce Short-Lived Climate ...

    en.wikipedia.org/wiki/Climate_and_Clean_Air...

    Short-lived climate pollutants (SLCPs) have a relatively short lifetime in the atmosphere – a few days to a few decades – and a powerful warming influence on climate.. The main short-lived climate pollutants are black carbon, methane and tropospheric ozone, which are the most important contributors to the human enhancement of the global greenhouse effect after C

  6. 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. [2] [3] As air pollution levels rise, so does the AQI, along with the associated public health risk. Children, the elderly and individuals with respiratory or ...

  7. Are Christmas trees toxic to cats? How to cat-proof your home ...

    www.aol.com/christmas-trees-toxic-cats-cat...

    No matter if you decorate immediately after Halloween or you wait until post-Thanksgiving, Christmas trees are a staple of the winter season. From balsam firs to pines and spruces to cedars, there ...

  8. South Carolina had no alternative but to shoot from the perimeter, and it was very successful with a 8-for-11 mark from 3-point line. The only problem was the Bruins were able to match it with 10 ...

  9. Air pollution in Malaysia - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_Malaysia

    The air quality in Malaysia is reported as the Air Pollution Index (API). Four of the index's pollutant components (i.e., carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide) are reported in ppmv but PM 10 particulate matter is reported in μg/m 3. This scale below shows the health classifications used by the Malaysian government. 0-50 Good