The mass burning of agricultural stubble in Punjab - a key driver of toxic air across the Indo-Gangetic plains and especially the NCR - returns to debate every year. While state governments claim that farm-fire incidents are falling, a new iFOREST study, echoed by an NDTV independent investigation last year, reveals a significant undercount of these fires.
Why? Because farmers are burning stubble after 3 pm, when no satellites are passing overhead. With nearly 90% of large fires taking place during this "blind window," the official data dramatically underreports the actual scale of burning. This "hidden fire zone" may be a major reason behind severe pollution spikes and worsening smog levels despite lower reported fire numbers.
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Companies will be paid for days when their machines achieve at least a 20% reduction in both PM2.5 and PM10, the tiny particles that make Delhi's air dangerous to breathe.
Fine particulate matter, the PM2.5 you hear about in air quality reports, is small enough to settle on the skin and even penetrate it. These particles, along with ozone and traffic-related pollutants, generate what we call oxidative stress.
The day's maximum temperature was recorded at 31.7 degrees Celsius, the India Meteorological Department (IMD) said.
The clearest sign that Delhi is on a path to cleaner air would be a decline in the amount of paddy grown nearby, and therefore the acreage liable to be burned each year.
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Monday October 19, 2026The clearest sign that Delhi is on a path to cleaner air would be a decline in the amount of paddy grown nearby, and therefore the acreage liable to be burned each year.
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