IQAir AirVisual takes the concentrations of pollutants reported by a station and calculates each pollutant’s AQI value. Chinese and USA AQI scales are comparable for values above 200.

This is not the current AirNow website. Covering 10,000+ locations from a global network of government monitoring stations and AirVisual’s own validated sensors. Showing all regions of areas affected by current bush fires & recommendations eg wear mask, do or don’t exercise outdoors, risk to those sensitive to poor air etc. Learn how better air can profoundly impact patients and staff. The data IQAir AirVisual reports – both from governmental and non-governmental monitors – is constantly monitored by its Artificial Intelligent (AI) system, which flags what it considers inappropriate data. How does IQAir AirVisual calculate the Air Quality Index value? In August 2018, Malaysia added PM2.5 to the calculation of its Air Pollution Index, which means it now bases its Air Pollution Index on the average concentrations of six air pollutants: PM2.5, PM10, PM2.5, sulphur dioxide, nitrogen dioxide, carbon monoxide and ozone.

The graph below shows how each US EPA-defined AQI corresponds to single pollutant concentrations.

Welcome to the first and only app to provide real-time and forecast air pollution and weather data for more than 10,000 cities around the world. For each station, it always lists the data source, contributor and location. EPA developed the Air Quality Index, or AQI, to make information available about the health effects of the five most common air pollutants, and how to avoid those effects. The AQI is determined by the pollutant with the highest index. For lower values, the US AQI is more stringent. IQAir AirVisual believes that it is the air quality data provider that has done more than any other to ensure data accuracy and reliability.More details on IQAir AirVisual’s validation and calibration processes are available Find an IQAir dealer to customize your air quality solutions. In these cases, it writes next to the AQI number that this data is an estimated figure.Each pollutant has both a concentration and Air Quality Index (AQI) value. Unaware how bad Nth West Africa extreme pollution levels are ❗️Can even buy a device reads your air pollution levels inside and out & use it as a reporting station for your area to the app. widely used AQI systems. The main pollutant's AQI is the overall Index value.It uses the United States’ AQI, which is one of the world’s most stringent.IQAir AirVisual updates it in real-time, not on a 24-hour rolling average. IQAir offers solutions for the most critical environments.

But *EDIT: Aug. 5, 2013, CORRECTIONS: China’s index is known as API, not AQI. It’s numerical as well as graded into good, moderate etc interpreting the reading for us. Local air quality can affect our daily lives. An AQI of 200 does not mean that the pollution concentration is twice as heavy compared to an AQI of 100.3. Air Quality Index (AQI) icons* Good 0 - 50 Little to no health risk Moderate 51 - 100 Sensitive individuals may Learn more. The standards are as follows: 0-50, “Good” Air quality is satisfactory and poses little or no health risk. IQAir AirVisual does this to be fully transparent and to give its users a choice as to which data they want to follow.It mostly reports from ground-based stations, which are the most accurate.

For example, if the PM2.5 AQI is 125, the PM10 AQI is 50, SO2 is 30, NOx is 50, and all other pollutants are less than 125, then the AQI is 125–determined ONLY by the concentration of PM2.5. Learn about AQI, our data sources, and how we validate and visualize air quality data. Learn more about IQAir’s full line of personal, room, and whole-house air purification systems.

Like the weather, it can change from day to day. (Can’t point any fingers just yet.)

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