As seasons change, air quality in many Indian cities often plummets. Staying informed about the air you breathe is a crucial first step to protecting your health. Here’s a simple guide to check real-time air pollution data from your phone or computer.
First, Understand the Air Quality Index (AQI)
Before you start checking data, it's important to understand what you're looking at. Most platforms use the Air Quality Index or AQI, a single number that simplifies complex pollution data. Launched by the Central Pollution Control Board (CPCB) in 2014, India’s National AQI translates the concentration of eight key pollutants—including PM2.5 and PM10—into one easy-to-understand figure, typically on a scale of 0 to 500. It is accompanied by a colour code and a health advisory. The six categories are: Good (0-50, Green), Satisfactory (51-100, Light Green/Yellow), Moderate (101-200, Yellow/Orange), Poor (201-300, Orange/Red), Very Poor (301-400, Red), and Severe (401-500, Maroon/Dark Red). The higher the number, the greater the health risk.
Go To the Official Government Sources
For the most authoritative data, government portals are your best bet. The CPCB runs the National Air Quality Index dashboard (app.cpcbccr.com), which provides real-time data from hundreds of monitoring stations across the country. Another key official source is SAFAR (System of Air Quality and Weather Forecasting and Research), managed by the Ministry of Earth Sciences. SAFAR provides data and forecasts for major metros like Delhi, Mumbai, Pune, and Ahmedabad. There's a key difference between the two: CPCB generally reports a 24-hour average, while SAFAR provides a real-time figure. This means SAFAR’s readings can appear to spike more quickly during sudden pollution events. The government also has an app called 'Sameer' which sources data directly from CPCB stations.
Use Popular Third-Party Apps
A host of user-friendly mobile apps make checking the AQI as simple as checking the weather. Many of these apps present data from official sources in a more accessible format, often with added features like forecasts and health recommendations. IQAir AirVisual is a popular global app that provides detailed pollutant breakdowns and historical data, though it often uses the US EPA scale by default, which can differ from India's AQI calculation. Other reliable options popular in India include AQI.in, which offers hyperlocal coverage, BreezoMeter, and Plume Labs (now part of AccuWeather), which is known for its forecasts. Some of these apps also feature home screen widgets, allowing you to see the current AQI at a glance.
Check Your Phone's Built_In Features
You may not even need to download a new app. Many smartphone operating systems and default apps now integrate air quality data directly. For instance, Google Maps has rolled out an air quality layer in India, which shows AQI data from nearby monitoring stations directly on the map. Similarly, the default weather apps on both iOS and Android platforms often display the local AQI alongside the temperature and weather forecast. These features are incredibly convenient for getting a quick, general sense of the air quality in your immediate vicinity without needing to consult a specialised application.
What To Do With The Information
Knowing the daily AQI is not just about awareness; it's about taking action to protect yourself and your family. When the AQI enters the 'Poor' to 'Very Poor' range (201–400), even healthy people can experience breathing discomfort, while those with existing conditions are at higher risk. On such days, it is advisable to reduce or avoid strenuous outdoor activities like jogging or sports. When the index crosses 400 into the 'Severe' category, everyone should limit their time outdoors and keep windows closed. People in vulnerable groups—children, the elderly, and individuals with respiratory or heart conditions—should be especially cautious. Using N95 masks when outside and running air purifiers indoors can help mitigate exposure on high–pollution days.
