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Delhi Air Pollution Update: Delhiites stared at the poor quality of air in the city once again as aurthorities announced the imposition of Graded Response Action Plan (GRAP) 1 restrictions. Currently, restrictions divided into four categories -- GRAP 1, GRAP 2, GRAP 3 and GRAP 4 -- come into force automatically based on different degrees of severity in air pollution. The first stage of restrictions -- GRAP 1 -- marks the lowest level of restrictions that are triggered when the quality of air, measured by the Air Quality Index (AQI), enters the 201-300 range (poor). 
The Commission for Air Quality Management (CAQM) notified the imposition of Stage 1 GRAP restrictions with immediate effect.
<img alt="GRAP 1 Delhi, Delhi air pollution, GRAP 1 restrictions Delhi April 16 what is banned, why GRAP 1 imposed in Delhi NCR AQI 226 poor category, Delhi air quality today GRAP Stage 1 rules and guidelines, what happens under GRAP Stage 1 restrictions in Delhi N" title="GRAP 1 Delhi, Delhi air pollution, GRAP 1 restrictions Delhi April 16 what is banned, why GRAP 1 imposed in Delhi NCR AQI 226 poor category, Delhi air quality today GRAP Stage 1 rules and guidelines, what happens under GRAP Stage 1 restrictions in Delhi N" height="675" width="1200" src="https://cdn.zeebiz.com/sites/default/files/Apr16_Delhi-pollution_____1200-675_.jpg" />
CAQM is the official body that combats air pollution in the National Capital Region (NCR) and its surrounding areas. 
<blockquote><a href="https://twitter.com/hashtag/CAQM?src=hash&amp;ref_src=twsrc%5Etfw">#CAQM</a> Sub-Committee on GRAP invokes Stage-I of <a href="https://twitter.com/hashtag/GRAP?src=hash&amp;ref_src=twsrc%5Etfw">#GRAP</a> in the entire <a href="https://twitter.com/hashtag/NCR?src=hash&amp;ref_src=twsrc%5Etfw">#NCR</a>, with immediate effect.
For more details, visit:<a href="https://t.co/4GOa3Ev4yd">https://t.co/4GOa3Ev4yd</a><a href="https://twitter.com/moefcc?ref_src=twsrc%5Etfw">@moefcc</a> <a href="https://twitter.com/PIB_India?ref_src=twsrc%5Etfw">@PIB_India</a>
— Commission for Air Quality Management (@CAQM_Official) <a href="https://twitter.com/CAQM_Official/status/2044766608959356949?ref_src=twsrc%5Etfw">April 16, 2026</a></blockquote>
<script async="" src="https://platform.twitter.com/widgets.js" charset="utf-8"></script> 
<h2>What triggered GRAP 1 curbs in Delhi-NCR?</h2>
 
The curbs were triggered after a GRAP sub-committee recorded Delhi's AQI at 226 (poor) due to unfavourable weather conditions. 
Forecasts indicate air quality is set to remain in the ‘poor’ category for the next two days in the region. 
Authorities have been instructed to implement, monitor and intensify GRAP Stage I measures across the NCR to prevent further deterioration in the quality of air.
Citizens are urged to fully comply with the guidelines to help curb pollution levels. 
The panel will continue to monitor the situation closely and take further decisions accordingly, if needed.
 
<h2>What are four stages of GRAP restrictions? When are they triggered?</h2>
Under the pollution control mechanism, the four stages of GRAP curbs are defined as follows:
<ul>
<li>Stage I - - Poor (201 - 300)</li>
<li>Stage II - - Very Poor (301 - 400)</li>
<li>Stage III - - Severe (401 - 450)</li>
<li>Stage IV - - Severe+ (450 +)</li>
</ul>
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<h2>What do Stage 1 curbs entail?</h2>
The mildest intervention level under the system, GRAP Stage 1 deals in areas like dust control, waste management and enforcement checks, whereas the higher levels touch aspects like transport or construction bans. 
Here's a summary of restrictions imposed in the region under GRAP 1:
<ul>
<li>Unfavourable meteorology
<ul>
<li>Low wind speed</li>
<li>Temperature inversion </li>
</ul>
</li>
<li>Dust resuspension</li>
<li>Local emissions
<ul>
<li>Traffic</li>
<li>Construction</li>
<li>Industry </li>
</ul>
</li>
</ul>
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<h2>GRAP 1 curbs in April</h2>
Generally, these restrictions are triggered in national capital and its adjoining areas around the winter months of October-December, owing to factors such as crop burning, festive emissions and stagnant winds
Over the past few years, various levels of restrictions have been active for a 2-3 months every year. 
ALSO READ: <a href="https://www.zeebiz.com/real-estate/news-builder-bank-nexus-cbi-launches-major-crackdown-conducts-77-raids-across-india-in-housing-fraud-probe-393640">Builder–Bank Nexus | CBI launches major crackdown, conducts 77 raids across country in housing fraud probe</a>

Delhi Air Pollution Update: Delhiites stared at the poor quality of air in the city once again as aurthorities announced the imposition of Graded Response Action Plan (GRAP) 1 restrictions. Currently, restrictions divided into four categories -- GRAP 1, GRAP 2, GRAP 3 and GRAP 4 -- come into force automatically based on different degrees of severity in air pollution. The first stage of restrictions -- GRAP 1 -- marks the lowest level of restrictions that are triggered when the quality of air, measured by the Air Quality Index (AQI), enters the 201-300 range (poor). The Commission for Air Quality Management (CAQM) notified the imposition of Stage 1 GRAP restrictions with immediate effect.CAQM is the official body that combats air pollution in the National Capital Region (NCR) and its surrounding areas. #CAQM Sub-Committee on GRAP invokes Stage-I of #GRAP in the entire #NCR, with immediate effect.For more details, visit:https://t.co/4GOa3Ev4yd@moefcc @PIB_India— Commission for Air Quality Management (@CAQM_Official) April 16, 2026 What triggered GRAP 1 curbs in Delhi-NCR? The curbs were triggered after a GRAP sub-committee recorded Delhi's AQI at 226 (poor) due to unfavourable weather conditions. Forecasts indicate air quality is set to remain in the ‘poor’ category for the next two days in the region. Authorities have been instructed to implement, monitor and intensify GRAP Stage I measures across the NCR to prevent further deterioration in the quality of air.Citizens are urged to fully comply with the guidelines to help curb pollution levels. The panel will continue to monitor the situation closely and take further decisions accordingly, if needed. What are four stages of GRAP restrictions? When are they triggered?Under the pollution control mechanism, the four stages of GRAP curbs are defined as follows:Stage I - - Poor (201 - 300)Stage II - - Very Poor (301 - 400)Stage III - - Severe (401 - 450)Stage IV - - Severe+ (450 +)ALSO READ: Minimum wage up to Rs 16,868, bank transfer mandatory: Will strict DM orders change industrial system in Noida?What do Stage 1 curbs entail?The mildest intervention level under the system, GRAP Stage 1 deals in areas like dust control, waste management and enforcement checks, whereas the higher levels touch aspects like transport or construction bans. Here's a summary of restrictions imposed in the region under GRAP 1:Unfavourable meteorologyLow wind speedTemperature inversion Dust resuspensionLocal emissionsTrafficConstructionIndustry ALSO READ: Noida Protests: DM Medha Roopam announces labour welfare reforms, double overtime pay amid unrestGRAP 1 curbs in AprilGenerally, these restrictions are triggered in national capital and its adjoining areas around the winter months of October-December, owing to factors such as crop burning, festive emissions and stagnant windsOver the past few years, various levels of restrictions have been active for a 2-3 months every year. ALSO READ: Builder–Bank Nexus | CBI launches major crackdown, conducts 77 raids across country in housing fraud probe

Authorities announced the imposition of GRAP 1 restrictions on April 16 as air quality dropped to the 'poor' category.  

Delhi AQI Update: GRAP 1 restrictions back as Delhiites battle &#039;poor&#039; air quality

Delhi AQI Update: GRAP 1 restrictions back as Delhiites battle 'poor' air quality

news-grap-1-restrictions-in-delhi-with-immediate-effect-april-16-2026-once-again-as-delhiites-battle-fight-poor-air-quality-393795

Delhi Air Pollution Update: Delhiites stared at the poor quality of air in the city once again as aurthorities announced the imposition of Graded Response Action Plan (GRAP) 1 restrictions. Currently, restrictions divided into four categories -- GRAP 1, GRAP 2, GRAP 3 and GRAP 4 -- come into force automatically based on different degrees of severity in air pollution. The first stage of restrictions -- GRAP 1 -- marks the lowest level of restrictions that are triggered when the quality of air, measured by the Air Quality Index (AQI), enters the 201-300 range (poor).  The Commission for Air Quality Management (CAQM) notified the imposition of Stage 1 GRAP restrictions with immediate effect. CAQM is the official body that combats air pollution in the National Capital Region (NCR) and its surrounding areas.  #CAQM Sub-Committee on GRAP invokes Stage-I of #GRAP in the entire #NCR, with immediate effect. For more details, visit:https://t.co/4GOa3Ev4yd@moefcc @PIB_India — Commission for Air Quality Management (@CAQM_Official) April 16, 2026   What triggered GRAP 1 curbs in Delhi-NCR?   The curbs were triggered after a GRAP sub-committee recorded Delhis AQI at 226 (poor) due to unfavourable weather conditions.  Forecasts indicate air quality is set to remain in the ‘poor’ category for the next two days in the region.  Authorities have been instructed to implement, monitor and intensify GRAP Stage I measures across the NCR to prevent further deterioration in the quality of air. Citizens are urged to fully comply with the guidelines to help curb pollution levels.  The panel will continue to monitor the situation closely and take further decisions accordingly, if needed.   What are four stages of GRAP restrictions? When are they triggered? Under the pollution control mechanism, the four stages of GRAP curbs are defined as follows: Stage I - - Poor (201 - 300) Stage II - - Very Poor (301 - 400) Stage III - - Severe (401 - 450) Stage IV - - Severe+ (450 +) ALSO READ: Minimum wage up to Rs 16,868, bank transfer mandatory: Will strict DM orders change industrial system in Noida? What do Stage 1 curbs entail? The mildest intervention level under the system, GRAP Stage 1 deals in areas like dust control, waste management and enforcement checks, whereas the higher levels touch aspects like transport or construction bans.  Heres a summary of restrictions imposed in the region under GRAP 1: Unfavourable meteorology Low wind speed Temperature inversion  Dust resuspension Local emissions Traffic Construction Industry  ALSO READ: Noida Protests: DM Medha Roopam announces labour welfare reforms, double overtime pay amid unrest GRAP 1 curbs in April Generally, these restrictions are triggered in national capital and its adjoining areas around the winter months of October-December, owing to factors such as crop burning, festive emissions and stagnant winds Over the past few years, various levels of restrictions have been active for a 2-3 months every year.  ALSO READ: Builder–Bank Nexus | CBI launches major crackdown, conducts 77 raids across country in housing fraud probe

Authorities announced the imposition of GRAP 1 restrictions on April 16 as air quality dropped to the poor category.  