India Pollution Monitors Overwhelmed by Toxic Smog

India pollution monitors overwhelmed by toxic smog

The admission comes after opposition politicians accused authorities of deliberately allowing gaps in official readings for several hours overnight Sunday into Monday, just as pollution surged with a barrage of fireworks for Diwali, the Hindu festival of lights. New Delhi is one of the world's most polluted capitals, where winter smog from vehicle emissions, farm fires and industry already chokes millions. But the missing readings meant officia…

India: CPCB addresses stark Delhi pollution data gap on Diwali night

India's main pollution monitor has issued a clarification on a wide air quality data gap between official and private reporting in New Delhi that saw the city choked amid Diwali fireworks. DW has the latest.

Why Is Max AQI Capped At 500? Pollution Board Attempts To Clear The Air

The CPCB has now broken its silence and issued a clarification on the core mechanics of India's National Air Quality Index (NAQI) framework, its design methodology, and its international alignment.

AQI capped at 500? CPCB explains why official monitors missed Delhi’s peak Diwali smog

Concerns were being raised over apparent data gaps at certain Delhi monitoring stations, a perceived AQI “cap” of 500, and glaring differences between official values and those shown by private platforms.

Why pollution watchdog's AQI data differs from private apps? Panel explains

The CPCB clarified why its AQI readings differ from private apps during extreme pollution episodes. It said methodology and equipment limits, not under-reporting, explain variations and data gaps.

Delhi's Diwali pollution puzzle: Updated data shows massive spikes, gaps remain

On Diwali night, alarming gaps in air quality monitoring data raised serious concerns about pollution levels in Delhi. Some monitoring stations displayed particulate matter levels far exceeding prescribed limits. The Central Pollution Control Board revealed data omissions during the critical pollution period.