As Diwali festivities conclude, concerns over air quality rise. With so many apps and websites reporting different numbers, finding reliable data is crucial. This guide directs you to the official government sources for verified Air Quality Index updates.
Why Official Data Is Crucial
In a sea of information from various private apps and websites, official data provides a standardised benchmark. Government sources use calibrated equipment at specific monitoring stations, ensuring the data is consistent and reliable for public health advisories. These platforms are managed by nodal agencies like the Central Pollution Control Board (CPCB), which are tasked with environmental regulation. Trusting official sources means you are getting information that is used to inform policy and public health warnings, free from commercial interests that might influence the data presented on other platforms.
SAMEER App: The CPCB's Official Tool
The most direct way to access official air quality data on your phone is through the 'SAMEER' app, developed by the Central Pollution Control Board. Available for both Android and iOS, this app provides hourly Air Quality Index (AQI) updates for over 100 cities across India. It presents a colour-coded, easy-to-understand interface that shows real-time AQI levels. Beyond just providing data, the SAMEER app also allows users to register complaints about polluting activities, such as garbage burning or construction dust, with photos, which are then directed to the relevant authorities.
SAFAR: Advanced Forecasting for Major Metros
The System of Air Quality and Weather Forecasting and Research (SAFAR) is another premier national initiative, run by the Ministry of Earth Sciences. It provides location-specific air quality information and forecasts for major metropolitan areas, including Delhi, Mumbai, Pune, and Ahmedabad. SAFAR's data is highly detailed, monitoring not just standard pollutants like PM2.5 and PM10, but also others like mercury, benzene, and toluene. You can access SAFAR's forecasts and real-time data through its dedicated website (safar.tropmet.res.in) and app, which can help you plan activities based on predicted air quality for the next 72 hours.
Central and State Portals
For those on a desktop, the CPCB's central website offers a comprehensive national air quality bulletin. Additionally, most State Pollution Control Boards (SPCBs) and Pollution Control Committees (PCCs) for Union Territories maintain their own websites with real-time data dashboards. For example, the Delhi Pollution Control Committee (DPCC) has its own portal (dpccairdata.com) with a map-based view of monitoring stations across the capital. Websites for states like Haryana, Rajasthan, and Kerala also offer direct access to local air quality data, providing a granular view of pollution levels in specific cities and industrial areas.
How to Read the Air Quality Index (AQI)
Understanding the numbers is as important as finding them. The AQI is a single number used to communicate how polluted the air currently is. It is calculated for eight major pollutants and reported on a scale from 0 to 500. The scale is divided into six categories, each with a corresponding colour and health advisory. - 0-50 (Green): Good. Minimal impact. - 51-100 (Light Green): Satisfactory. Minor breathing discomfort to sensitive people. - 101-200 (Yellow): Moderate. Breathing discomfort to those with lung or heart disease. - 201-300 (Orange): Poor. Breathing discomfort to most people on prolonged exposure. - 301-400 (Red): Very Poor. Can lead to respiratory illness on prolonged exposure. - 401-500 (Maroon): Severe. Affects healthy people and seriously impacts those with existing diseases.
