Air quality index meaning

How do I read the air quality index? What is the air quality index and why is it important? What does the Air Quality Index measure? Air quality is considered satisfactory, and air pollution poses little or no risk.

An air quality index ( AQI ) is a number used by government agencies to communicate to the public how polluted the air currently is or how polluted it is forecast to become. As the AQI increases , an increasingly large percentage of the population is likely to experience increasingly severe adverse health effects. Public health risks increase as the AQI rises.

Different countries have their own air quality indices , corresponding to different national air quality standards. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. It provides simple information on local air quality, the health concerns for different levels of air pollution, and how you can protect your health when pollutants reach unhealthy levels. People who are unusually sensitive to ozone or particle pollution may experience respiratory symptoms.

Unhealthy for Sensitive Groups. The color-coded Air Quality Index (AQI) describes air quality levels in a standard way all across the country. The AQI is between and 100. In other words “code re means the same thing in Los Angeles as it does in Raleigh, NC or Washington, D. Each color corresponds to a different level of health concern. The air quality index (AQI) is an index for reporting daily and hourly air quality.

It is an indication of how clean or polluted the air is in areas across NSW. The health effects from extreme pollution in places like China can be severe. AQI refers to the Air Quality Index. Indices definition To present the air quality situation in European cities in a comparable and easily understandable way, all detailed measurements are transformed into a single relative figure: the Common Air Quality Index (or CAQI). Air Quality Index is an indicator of overall air quality , because it takes into account all of the criteria air pollutants measured within a geographic area.

Although AQI includes all available pollutant measurements, you should be aware that many areas have monitoring stations for some, but not all, of the pollutants. ACT Health reports on air quality using up-to-date, accurate data on levels of pollutants in the air. He would support a plan to improve air quality in a smog-filled city on the grounds that it would improve human health along with the natural environment.

Current Air Quality Index (AQI) Conditions - California Cities. Please select a city for detailed current conditions and forecasts. Find out what they mean and why you should monitor their levels. PM) that have a diameter of less than 2. Environmental Protection Agency. At 1to 15 the air is considered unhealthy for sensitive groups: The elderly, children,.

The daily air quality index (DAQI) has been developed to provide advice on expected levels of air pollution. In addition, information on the short-term effects on health that might be expected to. An AQI between and is good.

It is a health protection tool that is designed to help you make decisions to protect your health by limiting short-term exposure to air pollution. Outdoor air quality is a measure of the impact on the atmosphere of outdoor air pollution. It is calculated from several sets of air pollution data. It was formerly used in mainland China and Hong Kong.

Air pollution poses little or no risk. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.