Gases in air quality index

EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act: ground-level ozone , particle pollution (also known as particulate matter ), carbon monoxide , sulfur dioxide , and nitrogen dioxide. The problem of air pollution has become a new challenge for the world. A bad air quality index indicates that air is not fit for breathing and can cause many unwanted problems. Therefore, the problem of air pollution has to be tackled at the root level. Devices like the electrostatic precipitator and scrubber help in removing particulate matter and some harmful gases respectively.

Currently, only particulate matter, nitrogen dioxide and sulphur dioxide are being measured. For example: in village air, methane high due to open compost pits and animal husbandry. YET under this index, village air-quality will be “good”, because methane not monitored. Doesn’t monitor Benzene.

Benzene is a carcinogen chemical from Petrol and diesel. The AQI is an index for reporting daily air quality. It tells you how clean or unhealthy your air is, and what associated health effects might be a concern.

These gases, collectively called greenhouse gases, include carbon dioxide , organic chemicals called chlorofluorocarbons ( CFCs ), methane , nitrous oxide , ozone, and many others. Carbon dioxide , although not the most potent of the greenhouse gases, is the most important because of the huge volumes emitted into the air by combustion of fossil fuels (e.g., gasoline, oil, coal). Air Quality Index (AQI) The pollutants.

However, the air also contains smaller amounts of many other gases and particles. Decomposition of garbage that releases unwanted gases in the air. Excessive usage of fossil fuels that increases the particulate matter in the air.

Smoke coming out from thermal power plants, forest fires etc. Usage of leaded petrol in automobiles. Air quality and greenhouse gases The JRC provides essential support to policy for improving air quality , including initiatives to harmonise air quality monitoring processes and to develop integrated greenhouse gas and air pollutant emission inventories and projections.

When ozone is the only pollutant affecting air quality, the risks to people’s health can be described from both short-term exposure to ozone (based on 1-hr averaged concentrations) and longer-term exposure to ozone (based on 8-hr average concentrations). While some of these gases occur naturally, like carbon dioxide in the expulsion of air from the lungs, the serious polluters come from the burning of fossil fuels: coal, oil and natural gas. This air pollution causes various problems including smog, acid rain and global warming.

The air quality index indicates the actual pollutants level on the air and how can be hazardous for our health. Which are the major air pollutants? You can think of the AQI as a yardstick that runs from to 500. The higher the AQI value, the greater the level of air pollution and the greater the health danger. Most of the stations on the map are monitoring both PM 2. Particle pollution — also called particulate matter (PM) — is made up of particles (tiny pieces) of solids or liquids that are in the air.

These particles may include: Some particles are big enough (or appear dark enough) to see — for example, you can often see smoke in the air. The Index is centred around five chief pollutants: Particulate Matter, Ozone, Nitrogen Dioxide and Carbon Monoxide. You could also have some major questions, but we’ll get to that in a bit. Major source of air pollution in the U. Estimation of perceptions about pollution in Dubai.

Result of surveys about air pollution , water pollution , greens and parks satisfaction, light and noise pollution , etc.