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An air quality index (AQI) is an indicator developed by government agencies [1] to communicate to the public how polluted the air currently is or how polluted it is forecast to become. [ 2 ] [ 3 ] As air pollution levels rise, so does the AQI, along with the associated public health risk.
PM 2.5 AQI of US monitors, calculated utilizing NowCast, courtesy US EPA PM2.5 AQI map, calculated utilizing NowCast, courtesy US EPA. The PM (particulate matter) NowCast is a weighted average of hourly air monitoring data used by the United States Environmental Protection Agency (USEPA) for real-time reporting of the Air Quality Index (AQI) for PM (PM 10 - particles less than 10 micrometers ...
A unique feature, the top of the Airmega 100 is color-coded and will changes based on what the device’s real-time Air Quality Indicator (AQI) senses: blue for good quality, green for moderate ...
The European Environment Agency collects its air quality data from 3,500 monitoring stations across the continent. [24] The measurements made by sensors like these, which are much more accurate, are also near real-time and are used to generate air quality indexes (AQIs). Between the two extremes of large-scale static and small-scale wearable ...
Kansas City is seeing a rise in unhealthy air quality alerts. Here’s where you can check the latest levels of ozone and other pollutants.
POTTER TWP. ― Environmental watchdog groups plan to leverage more than $630,000 in Shell penalty funds to install five real-time air monitors throughout Beaver County – gathering data to ...
Passive or "diffusive" air sampling depends on meteorological conditions such as wind to diffuse air pollutants to a sorbent medium. Passive samplers, such as diffusion tubes, have the advantage of typically being small, quiet, and easy to deploy, and they are particularly useful in air quality studies that determine key areas for future continuous monitoring.
IQAir also operates AirVisual, a real-time air quality information platform. [ 3 ] [ 4 ] As of February 2020, it had around 500 employees worldwide, 150 of them in China, and its most important markets were Asia and North America .