Pm2 5 aqi

AQI Calculator - AQI Calculator. DIRECTIONS: Choose the tab for AQI to Concentration or the tab for Concentration to AQI. Based on several studies at both low and high pollution levels, the human health effects are believed to be. PM1 temperature, humidity and noise data of your location, city and state.

Think of the AQI as a yardstick that runs from to 500. 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.

The GAIA air quality monitoring stations are using high-tech laser particle sensors to measure in real-time PM2. AQI readings for other countries. However, different countries follow different scales.

Both of these are more “forgiving” scales. Discover AirVisual Map, live world air pollution and air quality index (AQI) interactive 2D animated map combining PM2. Most of the stations on the map are monitoring both PM 2. PM data, but there are few exceptions where only PM is.

Health Effects Statement PM2. Unusually sensitive people should consider limiting prolonged outdoor exertion. Unhealthy for Sensitive Groups. Find out what they mean and why you should monitor their levels.

Air Quality Index ( AQI ) PM2. Get real-time, historical and forecast PM2. Read the air pollution in Bangkok, Thailand with AirVisual. The small particles are smaller than 2. These particles are called PM2. P M two point five, as in Particulate Matter up to 2. PMThe big particles are between 2. The dominating pollutants in outdoor air are monitored down to a single city block and updated hourly: AQI (EPA index), particles ( PM2. , PM10), nitrogen dioxide (NO) sulfur dioxide (SO2), carbon monoxide (CO) and ozone (O3).

Beijing Air Pollution: PM2. Under the Clean Air Act, EPA is required to review an if necessary, revise air-quality standards for criteria pollutants, including PM, every five years. Bear with us here while it gets a bit mathematics-y! AQI : Even at moderate levels. The scale used for PM2.

So you can’t use AQI to compare the two values, only concentration. See the AirNow AQI calculator here to see how to convert between AQI and. This is where AQI gets confusing. Fine Particles ( PM 2. ) Questions and.

The China AQI standard is less strict than the US standard for PM2. The detailed break-down of China vs. John Bachmann, a former EPA official who helped develop the first national air quality standards for fine particles “appears to be the biggest source of air pollution-related health effects in the world.

That’s not news to residents of California’s San Joaquin Valley. AQI value (2and above) when the PM 2.