Aqi to ppm

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).

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. The conversion factor depends on the temperature at which you want the conversion (usually degrees Centigrade in the US), as well as the ambient pressure. And for both pollutants the upper end of this range ( ppm for ozone, ppm for carbon monoxide) is the national standard set by the EPA, so the upper end of both ranges is equal to an AQI value of 100. First, round off the 0. Secon look in the Breakpoints Table (.pdf) under the 8-hour ozone column for the range of concentrations that contain this concentration (- ppm ). 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. In addition, the US EPA does not have a short-term NOx National Ambient Air Quality Standard (NAAQS), so a NOx index can only be over 200.

The Air Quality Index is adjusted periodically to reflect these changes. 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. AQI : Unhealthy for Sensitive Groups (1- 150) Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air. Like the weather, it can change from day to day or even hour to hour.

Environmental Protection Agency (EPA) and your local air quality agency have been working to make information about outdoor air quality as easy to find and understand as weather forecasts. A key tool in this effort is the Air Quality Index , or AQI. The last question is to look at the impact of a temperature variation on the Air Quality Index. The associated pollutant concentration and health information are indicated below. So, an 8-hour ozone concentration of 0. Bloom Engineering Company, Inc.

What is the Air Quality Index ? It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air. Indoor air quality (IAQ) is the air quality within and around buildings and structures.

IAQ is known to affect the health, comfort and well-being of building occupants. Poor indoor air quality has been linked to sick building syndrome, reduced productivity and impaired learning in schools. Different countries use different indices for measuring air quality by monitoring some or all of the following pollutants: carbon monoxide, PM2.

Fairbanks Area SPM PM 2. AQI Map (Click a Station for air quality details.) Station Name PM 2. This scale is based on the National Ambient Air Quality Standards (NAAQS) and is described in the Code of Federal Regulations, Part 5 Appendix G. This report is based on the AQI standards. How to convert ppb to ppm. There was a time when you were considered a pretty good supplier when your defect rate was less than , (10PPM ), then the expectation was increased to 0. Parts per million is the molar mass, volume or mass ratio between the pollutant component and the solution. Now the rate for most automotive components is targeted at PPM or 0.