Hourly aqi map

Particulate matter is the term used for a mixture of solid particles and liquid droplets found in the air. Coarse particles (larger than micrometers) come from a variety of sources including windblown dust and grinding operations. Data on this site is presented in Standard Time at the time the measurement ended. The EPA also posts the Air Quality Index for dozens of California cities.

The Bay Area air quality district lists current and recent AQI from individual monitoring stations. The private company PurpleAir maintains an interactive, crowdsourced air quality map. 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. Public comments and suggestions are encouraged.

A FAQ page is available. Air Quality Index (AQI) Calculation The Air Quality Index is based on measurement of particulate matter (PM and PM 10), Ozone (O 3), Nitrogen Dioxide (NO 2), Sulfur Dioxide (SO 2) and Carbon Monoxide (CO) emissions. Most of the stations on the map are monitoring both PM 2. PM data, but there are few exceptions where only PM is.

Please select a city for detailed current conditions and forecasts. Interactive Map of Air Quality. The AQI is not routinely updated on weekends and during holiday periods. Hourly Air Quality Index Maps.

Air quality readings are updated hourly and a daily air quality forecast is made for the Greater Sydney Metropolitan Region at 4pm each day. Current and forecast air quality. This map provides near real-time information on particulate matter air pollution less than 2. Under typical conditions, PM 2. The purpose of the Air Quality Index ( AQI ) is to help you understand what local air quality means to your health.

The higher the AQI value, the greater the level of air pollution, which means the greater the health concerns. Get current and historical air quality and weather information for the Bay Area. National Digital Air Quality Forecast Guidance Page. The starting point for graphical digital government air quality guidance.

Script courtesy of Michael Holden of Relay Weather. The following map shows the current Air Quality Index ( AQI ) for each monitoring site in the state that collects hourly data. The forecast legend in the map below pertains to those areas where the state maintains an air quality monitoring site as identified in the squares shown on the map. Site details are available by clicking on the site you. How clean is the air in your metropolitan area or county?

Use this map to find out. Environmental Protection Agency (EPA) has provided a scale called the Air Quality Index ( AQI ) for rating air quality. The forecasted Air Quality Index ( AQI ) is representative of pollution exposure for a 24- hour period.

Colorado Air Quality Map Every hour a live image of Denver is archived from the same location where visibility data are collected and calculated as the VSI. Several reports are available and range from a quick snapshot of air quality, to more detailed customized reports for selected dates. BreezoMeter created a new and uniform air quality index - the BreezoMeter AQI , BAQI, that provides a clear and intuitive way to read and understand real-time air quality information. Discover the most accurate information on air quality today, using our air quality index map to find air quality anywhere in the world.

The best practice is to report real-time air quality using hourly data, which is what most EPA worldwide do. For instance, during a period of Haze, where the Air Quality Index can deteriorate significantly and fast, the published Air Pollution index is most likely lower than the actual pollution.