Delhi AQI hits 208: CAQM invokes GRAP Stage-1 measures across NCR
Synopsis
Delhi's air quality slipped to 208 — 'Poor' on the AQI scale — prompting the CAQM to activate GRAP Stage-1 across the entire NCR on 19 May. Flying squads logged 39 violations across construction sites, industries, and DG sets in just three weeks of inspections, with 13 DG sets sealed and seven units ordered shut. The activation signals that Delhi's summer pollution cycle is already under regulatory watch.
Key Takeaways
CAQM invoked GRAP Stage-I measures across the NCR on 19 May after Delhi's AQI reached 208 (Poor category).
Measures include strict PUC norm enforcement , dust control at construction sites, and mechanised street sweeping.
Flying squads conducted 125 inspections between 29 April and 19 May , detecting 39 violations across C&D sites, industries, and DG sets.
Proposed enforcement actions include closure of 7 units , sealing of 13 DG sets , and issuance of 12 Show Cause Notices .
17 resumption orders have been issued after compliance verification — 13 for industrial units and 4 for C&D sites.
The Commission for Air Quality Management (CAQM) on Tuesday, 19 May invoked all actions under Stage-I of the Graded Response Action Plan (GRAP) across the entire National Capital Region (NCR) after Delhi's Air Quality Index (AQI) climbed to 208, placing it firmly in the 'Poor' category. The Sub-Committee's decision follows a review of prevailing air quality conditions alongside forecasts from the India Meteorological Department (IMD) and the Indian Institute of Tropical Meteorology (IITM).
What GRAP Stage-1 Means on the Ground
GRAP Stage-I is triggered when AQI falls in the 201–300 (Poor) range. The measures now in force include strict enforcement of Pollution Under Control (PUC) norms for vehicles, rigorous dust management at construction sites, and mechanised street sweeping across the NCR. These are baseline controls designed to prevent further deterioration before conditions warrant escalation to higher GRAP stages.
Enforcement Drive: 125 Inspections, 39 Violations
Between 29 April and 19 May, flying squads of the CAQM carried out 125 air quality-related inspections, detecting 39 violations across three sectors. The inspections comprised 20 checks at Construction and Demolition (C&D) sites, 51 at industrial units, and 54 related to Diesel Generator (DG) sets.
Of the 39 violations, 10 were at C&D sites, 10 in the industrial sector, and 19 involved DG set infractions, according to a statement issued after the 131st meeting of the Enforcement Task Force (ETF).
Proposed and Completed Enforcement Actions
Based on inspection findings, the CAQM has proposed a range of enforcement actions: closure of seven units or projects, sealing of 13 DG sets, issuance of 12 Show Cause Notices (SCNs), imposition of Environmental Compensation (EC) in four cases, and issuance of advisories to units in three cases. Of these, six actions have already been completed, while the remainder are under process.
Compliance Verified, Resumption Orders Issued
The Task Force also reviewed follow-up actions from its 130th ETF meeting, confirming that all actionable cases across the industrial, C&D, and DG set sectors have been addressed by the relevant agencies. A total of 17 resumption orders have been issued after compliance verification — 13 for industrial units and four for C&D sites across the NCR.
With summer conditions typically worsening air quality in the capital, authorities are expected to closely monitor AQI trends and assess whether a further escalation to GRAP Stage-II becomes necessary in the coming days.
Point of View
Delhi's pollution crisis peaks in winter, yet a 'Poor' AQI reading in summer points to year-round structural vulnerabilities in dust management and diesel generator use. The CAQM's enforcement data reveals that DG set violations alone account for nearly half of all infractions detected, a persistent blind spot that repeated task force meetings have yet to resolve. With only six of the proposed enforcement actions completed at the time of reporting, the gap between detection and consequence remains wide — which is precisely what emboldens repeat violations. Unless closure and sealing orders are executed faster, the compliance signal sent by GRAP activation risks being diluted before it takes effect.
NationPress
9 Aug 2026
Frequently Asked Questions
Why has CAQM invoked GRAP Stage-1 in Delhi NCR?
CAQM invoked GRAP Stage-1 because Delhi's AQI rose to 208, placing it in the 'Poor' category (201–300). The Sub-Committee reviewed IMD and IITM forecasts before ordering the activation of all Stage-I measures across the NCR on 19 May.
What actions are included under GRAP Stage-1?
GRAP Stage-1 measures include strict enforcement of Pollution Under Control (PUC) norms for vehicles, dust management at construction and demolition sites, and mechanised street sweeping. These are baseline controls aimed at preventing further air quality deterioration.
How many violations did CAQM flying squads find?
Flying squads detected 39 violations during 125 inspections conducted between 29 April and 19 May 2025. Of these, 10 were at C&D sites, 10 in the industrial sector, and 19 involved DG set infractions.
What enforcement actions has CAQM proposed?
CAQM has proposed closure of seven units or projects, sealing of 13 DG sets, issuance of 12 Show Cause Notices, Environmental Compensation in four cases, and advisories in three cases. Six of these actions have already been completed.
When could Delhi see GRAP Stage-2 activated?
GRAP Stage-2 is triggered when AQI enters the 'Very Poor' range (301–400). Authorities are expected to monitor AQI trends closely in the coming days, and escalation would depend on whether conditions worsen beyond the current 208 reading.
