Lowest air quality index

Keep track of the most polluted cities in the world with our air quality index (AQI) ranking. The highest sub-index for any given hour is recorded as the AQI for that hour. In simple terms, AQI is like a yardstick that ranges from zero to five hundred (0-500).

The index is a relative scale, meaning, the lower the index the better the quality of air and the lesser the health concern, and vice versa. 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 estimated 0people die though some concluded that the bad air eventually caused 1000. Significantly, AQI values reflect air quality management objectives , which are based on the lowest achievable emissions rate, rather than exclusive concern for human health.

American Lung Association’s annual report, which looks at levels of ozone and particulates, which are tiny particles that can. Here’s A through M from cities in India with the worst air quality (highest PM in the graph) to the best air quality (lowest PM number is the graph). Note: the numbers used in this graph show PM2.

The Particulate are lowest in here. Air Quality Index’ or AQI. This index has ten points, which are further grouped into four bands: low , moderate, high and very high. Each of the bands comes with advice for at-risk groups and the general population. Every day at 4pm, the NSW Office of Environment and Heritage (OEH) issues a forecast for the next day’s air quality index.

If the predicted AQI is 1or more (poor, very poor, or hazardous) an air pollution health alert will be issued. Despite being in smog-plagued Southern California, Anaheim still has great air, with an air quality index that is 60. In Anaheim, they know that it can�t be �The Happiest Place on Earth� if you can�t breathe.

As the air quality gets worse the number gets higher and the color associated with it becomes a darker shade of red. You can check the AQI level through the national air quality website, AirNow,. However, instead of showing changes in the temperature, the AQI is a way of showing changes in the amount of pollution in the air.

The rank above might not be a complete list. Karachi air pollution was the lowest among the four cities at number 318. This is due to off-gassing of volatile organic compounds (VOCs) found in paint, adhesives and many everyday objects in the home. Exposure to poor indoor air quality can cause short-term eye, nose and throat irritation as well as headaches, dizziness and fatigue. It can also exacerbate the effects of asthma,.

The following spreadsheets provide air quality status and trends for counties and cities, defined as CBSAs (Core-Based Statistical Areas Exit), with monitoring data. Those include carbon monoxide, nitrogen dioxide, ozone, particulate matter (10µm or less and µm or less), as well as sulfur dioxide. With a staggering 20deaths due to air pollution, England is suffering the most from dirty air in the UK. It has the worst air quality of any part of the UK.

Within Englan the north and Cornwall have the lowest levels of pollution. Poor air quality is responsible for an estimated 60premature deaths in the United. To access current rankings (updated continuously) please visit Pollution Index Rate (Current). The higher the AQI value, the greater the level of air pollution and the. Doing these steps can help lower air pollution levels either at home, the office or in the city in which you live.

Getting others to do the same will help spread the. The more people advocating for improved air quality , and actively taking actions to curb harmful air pollution , the better off we will be. Like the weather, it can change from day to day or even hour to hour.

Bakersfield (CA) returned to the top of both lists for most polluted for particle pollution, thanks to worse year-round and short-term exposures. Environmental Protection Agency (EPA) and others are working to make information about outdoor air quality as easy to understand as the weather forecast. The gorgeous Fairmount Park is the largest landscaped urban park in the world. Unfortunately, the air quality in the Philadelphia, Reading and Camden area of Pennsylvania, New Jersey, Delaware and Maryland ranks among the worst in the nation. The hourly index is updated every hour and allows you to see how air quality changes and evolves during the day.

Compare the year average air quality for a general overview.