The levels of air pollutants are rising exponentially across the world. According to WHO, more than eighty percent of urban population world-wide have exceeded the permissible air quality levels. Air is getting polluted at both indoors and outdoors by harmful pollutants in the air. Some of the major air pollutants include Particulate matter, ozone, Sulphur dioxide, carbon monoxide and nitrogen dioxide. These pollutants cause various respiratory and cardiovascular diseases that are causing fatal deaths worldwide. So, to prevent yourself from the ill-effects of poor air quality, monitoring of certain air-parameters are not only essential but is the need of the hour. You can use certain apps to check the air quality level in your location or other city to take preventive measures.
Causes of air pollution
- Transport emissions
- Indoor Combustion devices
- Industrial facilities
- Crackers
- Forest and crop burning
Permissible levels of air pollutants as per WHO
| Air-Pollutant | Value (ug/m3) |
|---|---|
| PM2.5(annual-mean) | 10 |
| PM10(annual-mean) | 20 |
| O3 (8-hour mean) | 100 |
| NO2 (annual-mean) | 40 |
| SO2 (24-hour mean) | 20 |
Although WHO has prescribed the limits for air pollutants but different countries have devised their own permissible standards according to their local environment conditions.
- National Ambient Air Quality Standards in India
- European Union Air Quality Standards
- National Ambient Air Quality Standards United States
Best Apps to Monitor Air Quality in Different Cities
AirVisual
Air visual is an app for monitoring the key pollutants of the air and also forecasts the weather. The app is available on both Android Play store and Apple iTunes. It covers six thousand cities spread across more than forty countries across the globe. When you install it, it will ask your permission to access the current location. It will also update its database the first time you use it.
On the home screen it will show the overall status of the air quality of the nearest monitoring station. The air pollutants are recorded by monitoring stations and it may be possible that there are no recording stations in your city or they are nearby your current location. In my case, Airvisual app shows the status of the area that is 15 kms from my current location.
On the upper left of the app screen, there is a plus sign. You can search for the particular location from its database of cities. Now if you need to check the values of different air pollutants, just click on the city-report shown to you.
The detailed stats will show you real time and forecast of weather along with the wind speed. In the next section, it will show the concentration levels of 5 pollutants that include PM2.5, O3, NO2, SO2, and CO.
Below this, you can see the historical values of air quality index (AQI). On the bottom the report, this app will show you the current and other nearest monitoring stations in a graphical map.
Cons
- The app shows detailed information but needs to add more monitoring station to cover more areas.
- On searching the city, the app takes a lot of time. (It might be quick on your mobile)
Verdict
Overall it is a useful air monitoring app with organized user interface.
Download Links:
Beezometer
This a simple app to get the information about the air quality in your area. After installation, it will ask to acces your location. Once granted, it will straightaway show the air quality index of your location. The app is quick and covers most of the locations across the world.
“Air quality index is one value derived from the concentrations of eight various pollutants. This is a simple measurement for a common man to check the air quality around him. Every country has its own AQI.”
Beezometer calculates the air quality in its own way considering the local AQI. It shows the meter reading between 0 to 100. More value means better air quality. What is best about this app is that depending on the result of AQI, it will advise you on what you should do to tackle the situation. It also allows you to share the air-quality status on various social media channels.
If you need to check the actual AQI of your location, you can move to three dots on the top-right of the screen and click it. Now from the drop-down menu, tap on local info. It will show you the exact AQI value of your area according to your country standards. It will show the values in different colors. Red color is for worst situation and green is for good air quality.
The app shows the AQI of your current location automatically but if you want to know the Air quality index of some other location around the globe, you can easily search from the top of the screen by typing the city name and tap on the search icon.
Cons
It does not show the concentrations of individual air pollutants.
Verdict
Best app for a common man.
Download
Air Quality Index India
Note: You can check the air quality Index for India on arthapedia.in
Download Air Monitoring Apps to Prevent Yourself from Toxic Air
There are many apps available in play store but I have shortlisted the above two as best after testing them on my android phone. You need to be careful especially in winter season when the fog mixes with moisture in the air and create hazardous chemicals in the air. You need to share this piece of information with the maximum people for whom you care of.
Dear shubash, I am from Bangalore. Your website is very informative. That air in my house appears very bad as my wife is having lots of problems like stuffy nose, cough, eye irritation, sneezing etc. Outside the house she is more comfortable….My question is how to measure or assess the quality of air in my house , and what is the remedy. Grateful if you could advise Me. Thanks……venugopal age 77.