Aqi pm

What does AQI stand for? Why is air quality important? The AQI is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you.

An air quality index ( AQI ) is used by government agencies to communicate to the public how polluted the air currently is or how polluted it is forecast to become. Public health risks increase as the AQI rises. Different countries have their own air quality indices, corresponding to different national air quality standards.

Around much of the worl the Air Quality Index AQI is dominated these days by particulate matter 2. Based on several studies at both low and high pollution levels, the human health effects are believed to be non-linear. Coarse dust particles ( PM 10) are 2. Sources include crushing or grinding operations and dust stirred up by vehicles on roads. When the AQI level ( air quality index ) is below 5 people are breathing fresh, clean air. People are no longer exposed to any health risk because the quality of air is pure.

Be highly active outside and spend more time. Breathe as much fresh air as you can. Discover AirVisual Map, live world air pollution and air quality index ( AQI ) interactive 2D animated map combining PM2. Bangkok overall air quality index is 68.

Particulate matter, or PM2. This is less than the thickness of a human hair. EPA criteria air pollutants, is a mixture that can include organic chemicals, dust, soot and metals. AQI, governments use a machine called a beta attenuation monitor that estimates the number of micrograms (the mass or weight) per cubic meter of air. So the raw number is the number of micrograms.

AQI is one of the best measures of air quality. And particulate matter smaller than 2. Several pollutants are taken into account. NO2), oxides of nitrogen (NOx), sulfur dioxide (SO2), lead (Pb), fine particles less than 10μm (PM10), less than 2. Carbon (CO), Benzene (C6H6) and ozone (O3).

AQI is 12 the PMAQI is 5 SOis 3 NOx is 5 and all other pollutants are less than 12 then the AQI is 125–determined ONLY by the concentration of PM2. In addition, the US EPA does not have a short-term NOx National Ambient Air Quality Standard (NAAQS), so a NOx index can only be over 200. EPA is updating the Air Quality Index (AQI) for fine particle pollution (PM ). Fairbanks Area SPM PM 2. Click a Station for air quality details. Shanghai, Beijing, Chengdu and Guangzhou.

Get real-time, historical and forecast PM2.