NEW DELHI, Feb 28, 2026 — A staggering 85 per cent of India’s population—more than 1.2 billion people—lives outside the reach of any measurable real-time Delhi air quality monitoring, according to the 2026 State of India’s Environment report. While the national capital maintains a robust network, the report highlights a critical “monitoring blind spot” across the rest of the country, leaving vast regions unable to record or respond to toxic air levels effectively.
Air Pollution Monitoring Divide: Delhi vs. The Rest of India
As per the details provided by the Centre for Science and Environment (CSE), only 15 per cent of Indians live within 10 km of a continuous real-time monitor. The report draws a sharp contrast between the AQI levels recorded in major hubs and the lack of data in rural and smaller urban areas. In Delhi, only 3.5 per cent of the population is outside the measurable range, whereas in states like Bihar and Uttar Pradesh, the coverage is alarmingly low.
| State/UT | Population Covered (Within 10km of Monitor) | Monitoring Status |
| Chandigarh | 100% | Best in India |
| Delhi | 96.5% | Strong Presence |
| Puducherry | ~50% (by area) | High Accessibility |
| Bihar | 13% | Large Gaps |
| Uttar Pradesh | 9% | Weakest Network |
Structural Inequity in Environmental Governance
According to the report from the source URL, 64 per cent of India’s 742 districts currently lack any continuous air quality monitoring stations. Experts at the CSE pointed out that this gap is not just a lack of information but a structural failure. Cities with monitors can demonstrate pollution trends to secure clean air funding and create action plans, while smaller towns with potentially higher particulate levels remain invisible to policy frameworks.
Currently, India operates 562 real-time monitors across 294 cities. However, these are heavily concentrated in large urban centers, leaving industrial belts and expanding peri-urban areas without hourly data.
Health Risks of “Blind” Breathing
The article states that for over a billion people, pollution is a “lived reality but not a recorded one.” Without real-time AQI levels, residents in states like West Bengal—where 19 per cent coverage leaves districts like Hooghly and Murshidabad without a single monitor—cannot take informed health precautions.
The CSE advocates for a transition to a “hybrid network design” that combines high-grade monitors with low-cost sensors and satellite data. This approach is essential to prioritize high-risk zones like schools and hospitals, ensuring that Delhi air quality standards or similar metrics can eventually be applied nationwide.
What Happens Next
The 2026 report calls for a unified and open data ecosystem to integrate datasets from various agencies into a single national portal. As cities expand, experts emphasize that the monitoring grid must become dynamic, relocating stations to reflect new patterns of land use and shifting emission sources. Until then, the majority of India will continue to breathe without knowing the true extent of the hazard they face.
How many people in India are not covered by air quality monitors?
Approximately 1.2 billion people, or 85 per cent of India’s population, live outside the measurable range of a continuous air quality monitor.
How does Delhi’s air monitoring compare to other states?
Delhi has one of the strongest networks, with 96.5% of its population covered. In contrast, Uttar Pradesh covers only 9% and Bihar only 13% of their respective populations.
Which city has the best air quality monitoring in India?
Chandigarh has the best coverage in the country, with every resident living within 10 km of a real-time monitor.
Why is lack of monitoring a problem for smaller towns?
Without real-time data, smaller towns cannot prove their pollution levels, which prevents them from securing clean air funding and forming effective action plans.
Nidhi Kapoor is an environmental journalist and air pollution monitoring expert with 8 years of experience. She specializes in collecting, analyzing, and interpreting air quality data to identify pollutant sources and their impact on public health. Through her investigative reporting, Nidhi develops insights and advocates for evidence-based solutions to reduce atmospheric contamination.