Pm2 5 index

AQI Calculator - AQI Calculator. DIRECTIONS: Choose the tab for AQI to Concentration or the tab for Concentration to AQI. Select a pollutant, then enter the AQI value or the concentration (in units).

Some particles are released directly from a specific source, while others form in complicated chemical reactions in the atmosphere. Find out what they mean and why you should monitor their levels. Most of the stations on the map are monitoring both PM 2. PM data, but there are few exceptions where only PM is. The air quality index is a piecewise linear function of the pollutant concentration. At the boundary between AQI categories, there is a discontinuous jump of one AQI unit.

National Trends in PM 2. Under the Clean Air Act, EPA sets and reviews. The GAIA air quality monitoring stations are using high-tech laser particle sensors to measure in real-time PM2. Very easy to set up, they only require a WIFI access point and a USB power supply. Once connecte air pollution levels are reported instantaneously and in real-time on our. The CCME standard for particulate matter 2. Health Effects Statement PM2.

Air Quality Index (AQI) PM2. Unusually sensitive people should consider limiting prolonged outdoor exertion. Unhealthy for Sensitive Groups. Based on several studies at both low and high pollution levels, the human health effects are believed to be.

Think about a single hair from your head. The average human hair is about micrometers in diameter – making it times larger than the largest fine particle. Use the chart below to help reduce your exposure and protect your health. The AQI is determined by the pollutant with the highest index. For example, if the PM2.

AQI is 12 the PMAQI is 5 SOis 3 NOx is 5 and all other pollutants are less than 12 then the AQI is 125–determined ONLY by the concentration of PM2. Particulate matter, or PM2. This is less than the thickness of a human hair. The most recent update to U. The newest standards maintained a PM2.

PM1 temperature, humidity and noise in Uttar Pradesh. Beijing Air Pollution: PM2. PM is particulate matter micrometers or less in diameter, PM 2. By way of comparison, a human hair is about 1micrometres, so roughly fine particles could be placed on its width. Check out which city in the world had the highest level of air pollution PM2. Download the IQAir AirVisual world air quality report.

Check out the most trusted live and forecast air quality information for people and organizations. Helping the world with free AQI data, forecast, API, air quality monitor and solutions for organizations. Thomas here, the nerd behind Smart Air.