Tag: Air Quality Index

Air Quality Index (AQI) Delhi

At AQI Of 393, Delhi’s Air Quality Dips To Very Poor

By LokMarg

The air pollution in the National Capital continues to be in the ‘very poor’ category, with an overall Air Quality Index (AQI) recording of 393.

As per the official data recorded at 7:00 am on Sunday, an AQI of 433 was recorded at Ananad Vihar and 434 at Ashok Vihar. Similarly, the AQI at Bawana stood at 437, while Jahangirpuri registered an AQI of 450, all falling into the severe category.

The AQI at the ITO in Delhi was recorded at 382 (very poor), while the IGI airport logged an AQI of 360 (very poor).

The Air Quality Index from 0 to 100 is considered ‘good’, 100 to 200 ‘moderate’, 200 to 300 ‘poor’, 300 to 400 ‘very poor’ and from 400 to 500 or above ‘severe’.

Following a significant improvement in the overall AQI in the national capital last week, the CAQM (Commission for Air Quality Management) revoked the restrictions that were imposed under GRAP 4, permitting trucks and buses except for BS-3 and BS-4 petrol and diesel vehicles to enter the city and lifting the ban on ongoing construction activities.

Restrictions under stages 1 to 3 of the Graded Response Action Plan (GRAP), however, remained in place.

Delhi Environment Minister Gopal Rai conducted a meeting on Friday on increasing pollution in the city.

“Some increase in the pollution of Delhi has been noted. We had a meeting regarding it. The incidents of stubble burning are very few now, and the level of pollution is still increasing. Scientists reported 2-3 factors for this. The first is that vehicle pollution’s contribution is 36 percent. The second factor is biomass burning. We made some major decisions after seeing this, Gopal Rai said.

“To control vehicle pollution, we issued the rules of GRAP 3. To control biomass burning, we have directed the related organisations to monitor this, especially. especially the MCD, Revenue, DDA, and NDMC, are being given this direction for the fires that are breaking out at various places in the parks,” he added. (ANI)

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Delhi AQI

Delhi AQI Better Since Afternoon, Likely To Improve Further: Panel

By LokMarg

As the Delhi air turned severe, leading to a temporary closure of schools and scores gasping for breath, the average Air Quality Index (AQI) in the national capital clocked 468 on Friday, according to the 4 pm AQI bulletin of the Central Pollution Control Board (CPCB).

The sub-committee of the Commission for Air Quality Management (CAQM), for the operationalisation of GRAP (Graded Response Action Plan), took due cognisance of the declining air quality in the national capital and the weather forecast made available by the India Meteorological Department (IMD) and the Indian Institute of Tropical Meteorology (IITM) for the next few days.

The sub-committee noted that the average AQI in the national capital showed a declining trend since the afternoon after the enforcement of the GRAP measures.

At 12 noon, the average AQI of Delhi clocked 475 which improved to 468 at 4 pm and further to 456 at 5 pm on Friday.

The forecast from IITM and IMD also indicated a further improvement in the AQI over the next few days.

The sub-committee noted further that mitigation measures under GRAP Stage-III were implemented on Thursday late evening and it was reasonable that it would take more time for its impact to be felt on the average AQI.

The actions are expected to yield positive results over the next few days, it noted.

After comprehensively reviewing the overall air quality scenario and relevant aspects, the sub-committee unanimously decided to track the situation for a day or more before invoking more stringent disruptive actions under Stage-IV of GRAP.

The ongoing actions implemented under Stage-I, Stage-II and Stage-III of GRAP shall continue for the present, the sub-committee stated, adding that it was keeping a close watch on the situation for further action.

Along with Delhi, the air quality in cities in the NCR including Bhiwandi, Faridabad, Fatehabad, Ghaziabad, Greater Noida, Hisar, Jind, Noida, Rohtak, and Sonipat were also recorded in the ‘Severe’ category.

Stage III of the GRAP is implemented when the AQI hits severe in the range of 401-450. As part of its response to combat pollution, the government can impose strict restrictions on BS III petrol and BS IV diesel four-wheelers in certain areas and may suspend physical classes in schools for primary-grade children up to Class 5.

The Delhi government has suspended classes in primary schools as the air quality in the national capital turned severe. (ANI)

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Delhi NCR air quality

Delhi-NCR AQI Continue To Remain In ‘Very Poor’ Category

By LokMarg

The air quality in the national capital remained in the ‘very poor category’ with Air Quality Index (AQI) recorded at 381 on Monday, as per the System of Air Quality and Weather Forecasting and Research (SAFAR).

The AQI in the Delhi University area was 389, while in the IIT Delhi area, it was recorded at 382. In the Airport (T3) area, the quality of air was recorded at 387.
According to SAFAR, the AQI in the National Capital Region (NCR) also remained in the ‘Very Poor Category’. The AQI in Gurugram stood was recorded to be 388, while Noida also registered the same figure.

The Air Quality Index (AQI) from 0 to 100 is considered as good, while from 100 to 200 it is moderate, from 200 to 300 it is poor, and from 300 to 400 it is said to be very poor and from 400 to 500 or above it is considered as severe.

Even after the overall air quality of the national capital deteriorated suddenly, rapidly, and unanticipatedly, the Ministry of Environment, Forest and Climate Change on Sunday the sub-committee for invoking actions under GRAP of CAQM decided that there is no need for invoking the stage III of GRAP at this moment, the Ministry of Environment, Forest and Climate Change informed on Sunday.

It is pertinent to note that Stage III of GRAP means a ban on all construction and demolition activities except those of national importance.

Considering this sudden rise in the average AQI of Delhi, the Sub-Committee for invoking actions under the Graded Response Action Plan (GRAP) of the Commission for Air Quality Management in NCR and Adjoining Areas (CAQM) met today to take stock of the situation.

During the meeting, it was noted that this sudden and steep dip in air quality parameters in the last 24 hours in the region led to the overall AQI of Delhi moving into the “Severe” category today is an aberration as the forecasts predict immediate improvement with the overall AQI to move into the ‘Very Poor’ category from tonight itself, the Ministry stated.

Various agencies responsible for implementing measures under the GRAP and Pollution Control Boards (PCBs) of NCR and DPCC have also been advised to intensify pollution control and mitigating measures under Stage-I and Stage-II of GRAP in the entire NCR to prevent deterioration of air quality.

Further, the Sub-Committee is closely watching the situation and will review the air quality scenario accordingly. The revised schedule of GRAP is available on the Commission’s official website and can be accessed via caqm.nic.in, the release further stated. (ANI)

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Ban On Construction In Delhi

Govt Revokes Ban On Construction Activity In Delhi

By LokMarg

The Union government panel that recommends steps to control pollution in the national capital region has revoked actions under the graded response action plan (GRAP) stage III with immediate effect, because of a noteworthy fall in pollution.

Stage III of GRAP means a ban on all construction activities except those of national importance.

The Sub-Committee for invoking actions under GRAP of the Commission for Air Quality Management in NCR and Adjoining Areas (CAQM) held a meeting today to review the situation and take the appropriate call in view of noteworthy improvement in the overall air quality of Delhi witnessed in the last few days with a fall of more than 100 points in the overall Air Quality Index (AQI) since the last invocation of Stage III of the Graded Response Action Plan (GRAP) on December 4.

“While comprehensively reviewing the overall air quality parameters of Delhi-NCR, the Commission noted that due to forecasts by IMD/ IITM not indicating the overall AQI of Delhi to slip into the “Severe” category in the next few days and as it is likely to fluctuate between ‘Poor’ to ‘Very Poor’ category, it is advisable to relax the restrictions and further roll back Stage-III of the GRAP with immediate effect in the entire NCR,” the Ministry of Environment, Forest and Climate Change said in a statement.

The GRAP Sub-Committee in its earlier meetings had invoked actions under Stage-I, Stage-II, Stage-III, and Stage-IV of the GRAP in the entire NCR on October 5, October 19, October 29, and November 3 respectively.

Further, Sub-Committee in its review meeting revoked the actions under Stage-IV (‘Severe+’ Air Quality) of GRAP on December 6 and revoked Stage-III (‘Severe’ Air Quality) of GRAP on November 14 after considering the improvement in the air quality of Delhi and AQI forecasts of subsequent days.

Stage III of the GRAP was again invoked in the entire Delhi-NCR on December 4 after the sudden increase in the overall AQI of Delhi.

The Ministry further said that The Sub-Committee in its meeting today comprehensively reviewed the air quality scenario in the region as well as the IMD/IITM forecasts for meteorological conditions and the air quality index of Delhi and observed that the overall AQI of Delhi has been progressively improving with 407 recorded on December 4; 347 on December 5; 353 on December 6; and 304 recorded today which is below the threshold for invoking the GRAP Stage-III actions (Delhi AQI 401-450).

Further, the AQI is seeing a downward trend with favorable improvement in the average AQI as well. Preventive/ mitigative/ restrictive actions under all Stages up to Stage II are already underway and the forecasts by IMD/ IITM also do not indicate the AQI to fall in the ‘Severe’ category in the next few days.

Further, actions under Stage-I to Stage-II of the GRAP shall however remain invoked and be implemented, intensified, monitored, and reviewed by all agencies concerned in the entire NCR to ensure that the AQI levels do not slip further to the ‘Severe’ category.

All implementing agencies shall keep strict vigil and especially intensify measures under Stages I and II of GRAP which include the

Mechanical/vacuum-based sweeping of roads to be carried out on a daily basis.

Ensure water sprinkling along with the use of dust suppressants regularly on roads to arrest road dust, especially at hotspots, heavy traffic corridors, and vulnerable areas (before peak hours), and proper disposal of dust collected in designated sites/landfills.

Regular inspection and strict enforcement of dust control measures at Construction & Demolition (C&D) sites and enforcement of direction on the use of Ani-Smog guns.

Do not allow coal/firewood including in Tandoors in Hotels, Restaurants, and open eateries.

Ensure hotels, restaurants and open eateries use only electricity/ clean fuel gas-based appliances.

Enhance Parking fees to discourage private transport.

Regulated use of DG Sets except for the emergent and essential services.

C&D project sites and industrial units which have been issued specific closure orders on account of violations/ non-compliances with various statutory directions, rules, guidelines, etc. under no circumstances shall resume their operations without any specific order to this effect from the Commission.

Further, the Commission has once again appealed to the citizens of NCR to cooperate in implementing GRAP and follow the steps mentioned in the Citizen Charter under the GRAP.

Citizens are advised to use public transport and minimize the use of personal vehicles.

Regularly replace air filters at recommended intervals in your automobiles. Avoid dust-generating construction activities.

Various agencies responsible for implementing measures under GRAP and Pollution Control Boards (PCBs) of NCR and DPCC have also been advised to ensure strict implementation of actions of Stage I and Stage II under GRAP in the NCR.

Further, the Commission is closely watching the situation and will review the air quality scenario accordingly, the ministry statement read. (ANI)

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Air Quality In NCR

Delhi Suffers Another ‘Very Poor’ Air Day With 337 AQI

By LokMarg

Air Quality Index (AQI) was recorded on Tuesday at 337 by the System of Air Quality and Weather Forecasting And Research (SAFAR).

According to the SAFAR, Delhi’s air quality was recorded in the ‘very poor’ category on Tuesday.
Earlier on Monday, the national capital woke up to smog with the Air Quality Index (AQI) recorded at 340 by SAFAR.

The Air Quality Index from 0 to 100 is considered as good, while from 100 to 200 it is moderate, from 200 to 300 it is poor, and from 300 to 400 it is said to be very poor and from 400 to 500 or above it is considered as severe.

Earlier on Sunday, the Commission for Air Quality Management (CAQM), a Union government panel recommending steps to control air pollution in the national capital, announced a temporary ban on construction and demolition activities in Delhi-NCR as part of its Graded Response Action Plan (GRAP). The announcement came after the air quality in Delhi and the national capital region breached the ‘severe’ category.

The CAQM, which on Sunday chaired a meeting to review the air quality in Delhi-NCR, put out a release saying, “As the AQI in Delhi has slipped into ‘severe’ category, the sub-committee had decided that all actions, as envisaged under Stage III of the GRAP, be implemented in right earnest by all the agencies concerned, with immediate effect in the NCR, in addition to all action under Stage I and Stage II of the GRAP.”

The panel had further observed that the air quality saw a further deterioration over the last 24 hours, with Delhi’s overall Air Quality Index (AQI) at 407 on December 4, according to Central Pollution Control Board (CPCB).

In its order, the CAQM said it temporarily banned construction activities, “with the exception of Metro Rail services, including stations; airport and inter-state bus terminals; railway services/stations; national security/defence-related activities/ projects of national importance; hospitals/healthcare facilities; linear public projects such as highways, roads, flyovers, overbridges, power transmission, pipelines; sanitation projects like sewage treatment plants and water supply projects; ancillary activities specific to and supplementing above categories of projects”.

Milk and dairy units and those involved in the manufacturing of life-saving medical equipment, drugs, and medicines, were also exempted from the restrictions stipulated in the CAQM order. (ANI)

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Delhi NCR air quality

Construction, Demolition Banned In Delhi-NCR As AQI Turns Severe

By LokMarg

The Commission for Air Quality Management (CAQM), a Union government panel recommending steps to control air pollution in the national capital, on Sunday announced a temporary ban on construction and demolition activities in Delhi-NCR as part of its Graded Response Action Plan (GRAP).

The announcement came after the air quality in Delhi and the national capital region worsened again, breaching the ‘severe’ category.
The CAQM, which on Sunday chaired a meeting to review the air quality in Delhi-NCR, put out a release saying, “As the AQI in Delhi has slipped into ‘severe’ category, the sub-committee had decided that all actions, as envisaged under Stage III of the GRAP, be implemented in right earnest by all the agencies concerned, with immediate effect in the NCR, in addition to all action under Stage I and Stage II of the GRAP.”

The panel further observed that the air quality saw a further deterioration over the last 24 hours, with Delhi’s overall Air Quality Index (AQI) at 407 on December 4, according to Central Pollution Control Board (CPCB).

In its order, the CAQM says it temporarily banned construction activities, “with the exception of Metro Rail services, including stations; airport and inter-state bus terminals; railway services/stations; national security/defence-related activities/ projects of national importance; hospitals/healthcare facilities; linear public projects such as highways, roads, flyovers, overbridges, power transmission, pipelines; sanitation projects like sewage treatment plants and water supply projects; ancillary activities specific to and supplementing above categories of projects”.

Milk and dairy units and those involved in the manufacturing of life-saving medical equipment, drugs and medicines, were also exempted from the restrictions stipulated in the CAQM order.

An AQI between 201 and 300 is considered ‘poor’, 301 and 400 ‘very poor’ and 401 and 500 ‘severe’. (ANI)

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Air Quality Delhi

Delhi Air Quality To Improve From Sunday Evening Onwards: IMD Scientist Vijay

By LokMarg

The Air Quality in Delhi which has been in the ‘severe’ category for some time is likely to improve bringing respite to Delhiites from Sunday evening, a weather scientist said.

“The air quality in the national capital is in the severe category with an air quality index of around 400, but from today evening onwards, the air quality of the national capital is likely to improve,” India Meteorological Department (IMD) scientist Vijay Soni told ANI.
During a telephonic conversation, Vijay Soni, a scientist at the IMD’s Air Quality Division in New Delhi, said, “Today morning the air quality of Delhi was in the severe category with an Air Quality Index (AQI) around 400.

“The main reason behind this has been with winds remaining calm for the whole day and night on Saturday, which deteriorated air quality significantly.”

“But today (Sunday) we expect that winds will improve and we will see an improvement in the AQI from evening onwards,” he said.

Explaining the two main reasons for air quality to be in a severe category, Soni said, “The main reason is low wind speed and decrease in mixing layer height.

“The mixing layer height has come down significantly close to the surface. So these two factors are really contributing to the deterioration in air quality.”

He explained, “Mixing height is the height up to which air pollutants get mixed up in the atmosphere. The wind is almost calm, but today morning it has started. Right now the wind speed is up to 8 kmph,” Vijay Soni said.

On being asked if it’s normal to have such air quality in the month of December in Delhi, Soni said, “The air quality generally deteriorates in the month of December. In this month generally, we see lower mixing height and low wind speed and hence we experience bad air quality.” (ANI)

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Air Quality Delhi

CAQM Lifts Ban On Entry Of Heavy Vehicles To NCR As Air Quality Improves

By LokMarg

In view of the improvement in the overall air quality of the Delhi-NCR in the past few days, a Central government panel revoked Graded Response Action Plan (GRAP) stage 4, which means that there is no ban on entry of trucks and non-BS 6 diesel light motor vehicles are allowed. But ban on non-essential construction activities which come under GRAP-3 now in force would continue.

The GRAP is an emergency response action plan invoked with a view to arrest further deterioration of adverse air quality scenarios in NCR.
GRAP stage 3 still remains invoked. So, ban on construction and demolition activities in the entire NCR region except for railway services, metro rail services including stations and other essential activities will continue.

According to the Commission for Air Quality Management in the National Capital Region (CAQM), “Under Stage III State Governments in NCR/ GNCTD may impose restrictions on BS III petrol and BS IV diesel LMVS (4 wheelers). Choose a cleaner commute — share a ride to work or use public transport or walk or cycle.”

Delhi Environment Minister Gopal Rai will chair a meeting on Monday to discuss revoking of 50 per cent of work from home and re-opening primary schools after the orders issued by the Commission for Air Quality Management in the National Capital Region (CAQM) today.

Environment, Forest and Climate Change Ministry in a statement said, “While comprehensively reviewing the overall air quality parameters of Delhi-NCR, the Commission noted that due to forecast by IMD/ IITM not indicating any steep degradation in the overall air quality of Delhi-NCR in the coming days, it is advisable to relax the restrictions and further roll back Stage IV of GRAP with immediate effect in the entire NCR”.

According to CAQM, the present AQI level of Delhi is around 339 which is about 111 AQI

points below the threshold for invoking the GRAP Stage-IV actions (Delhi AQI > 450) and preventive/ mitigative/ restrictive actions under all Stages up to Stage-IV are underway, there is a likelihood of sustaining the improvement in AQI. The forecast by IMD/ IITM also does not indicate any steep degradation further.

The forecasts also indicated a significant improvement around November 5 and November 6, 2022, therefore, the sub-Committee while invoking Stage IV of the GRAP, decided to review the situation on November 6, 2022. (ANI)

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Air Quality Delhi

Delhi: AQI Severe; Noida Records 529 AQI, Gurugram At 478

By LokMarg

The air quality in Delhi continued to remain in the ‘severe’ category on Saturday, for the third day in a row, even though a slight improvement was noted in the Air Quality Index (AQI) of the national capital, which stood at 431 this morning.

On Friday during the corresponding morning period, the AQI of the capital city was recorded at 472.
Also, areas in the national capital region (NCR) area – Noida and Gurugram at 7 am this morning recorded an AQI of 529 and 478 respectively both in the highly toxic ‘severe’.

Dhirpur in West Delhi recorded an AQI of 534.

On Friday, SAFAR (System of Air Quality and Weather Forecasting And Research) said that stubble-burning accounted for 34 percent to Delhi’s particulate matter (PM) 2.5 pollution.

Air Quality Index from 0 to 100 is considered good, while from 100 to 200 it is moderate, from 200 to 300 it is poor, and from 300 to 400 it is said to be very poor and from 400 to 500 or above it is considered as severe.

People of Delhi and the National Capital Region (NCR) complained of choking and ‘eye burning’ due to smog and air pollution leaving people gasping for breath.

Earlier on Friday, Delhi Chief Minister Arvind Kejriwal along with Punjab Chief Minister Bhagwant Mann held a press conference and urged the central government to come forward and lead measures to check severe smog in the national capital region.

Kejriwal and Mann said that the AAP governments are in Punjab and Delhi. This is not the time to raise fingers or abuse each other. If they say, Kejriwal is responsible and we say they are responsible, this will not solve the problem of smog in NCR, they added.

“We do not want to play blame game, we are responsible (for smog in NCR)”, they added.

CM Kejriwal announced that primary schools in Delhi would be closed from November 5.

Besides, the outdoor activity of students of the above fifth standard has been banned.

The Delhi government is also mulling implementing the odd-even norms for plying of vehicles in Delhi to contain the pollution caused by vehicular emission, he added.

However, the forecast predicts that the condition of air quality in Delhi and nearby regions will continue to deteriorate further and expects improvement from November 5.

“Air quality is likely to remain within ‘Severe’ today and likely to improve tomorrow to ‘lower end of Severe’ and from 5th onwards air quality is likely to improve further to ‘Very poor’ due to upper-level wind reversal that prevents inflow of stubble-related pollutants. Higher surface wind speed on 5th Nov is likely to disperse pollutants,” said a press release. (ANI)

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stubble burning in punjab

CAQM Reviews Implementation Of Directions To Restrict Stubble-Burning In Punjab

By LokMarg

Reviewing the status of implementation of measures directed to restrict stubble burning in Punjab, the Commission for Air Quality Management in NCR and Adjoining Areas (CAQM) held a meeting with the Chief Secretary and Deputy Commissioners of 22 districts of Punjab except Pathankot (no farm fire incidents reported).

The primary focus of the review meeting was to assess the on-ground implementation of directions and reiterate the need for immediate intensification of actions to put a halt to the sudden spike in stubble-burning cases seen in the last few days in Punjab.
The Chief Secretary and Deputy Commissioners of the 22 districts of Punjab were reminded of their earlier commitments of drastically bringing the farm fire counts in 2022 as compared to last year.

The Deputy Commissioners of 10 districts namely Amritsar, Barnala, Bhatinda, Firozpur, Jalandhar, Kapurthala, Ludhiana, Sangrur, Tarn Taran, and Patiala where more than 1,000 fire counts are reported, were specifically advised to pay special attention and focus on the implementation of the action plan.

During the review meeting, the Chief Secretary and Deputy Commissioners of the 22 districts of Punjab assured that they will put their best foot forward to substantially bring down the rising farm fire incidents in Punjab.

They also assured that a decline in stubble-burning incidents is expected to be seen in the coming days.

Stubble burning continued unabated in Punjab with the state reporting nearly 24,000 such cases so far, an official said on Friday.

The incidents of stubble burning have seen a rise in parts of Punjab this year in comparison to last year. However, the area of fields burnt has witnessed a drop of 1 percent so far.

Speaking to ANI over the phone, Senior Environmental Engineer of Punjab Pollution Control Board, Gurbakhshish Singh Gill said that 1,144 incidents of stubble burning have taken place in the state till Thursday and 24,146 such incidents in Punjab.

“We are working in coordination with the government. Efforts are on. Farmers are being sensitised. Our teams are monitoring the situation. We are hopeful of the situation being in our control this time,” he said earlier on Thursday.

He attributed various factors to the deterioration in the Air Quality Index (AQI).

“There are various factors responsible for the deteriorating AQI. Stubble burning is one of them, other is Diwali, transportation and other atmospheric conditions,” he said.

Speaking to ANI on Thursday, Deputy Commissioner of Bathinda, Showkat Ahmad Parray said, “Nearly 1,200 incidents have been reported till now. Last year, it was nearly 900 which has increased this time. But the data that comes to us is not right in itself because there is some period during which the satellite does not capture the incidents. So if there is stubble burning taking place during that period, such incidents are not reported to us,” he said.

Pollution has risen in Delhi where the AQI remained in the ‘severe’ category for the second consecutive day. Stubble burning has contributed to 34 percent of Delhi’s PM 2.5 pollution.

On Friday morning the overall Air Quality Index (AQI) of the city jumped to 472. Noida, which is part of the national capital region, recorded an AQI of 562, and continued to remain in the ‘severe’ category, while Gurugram’s AQI stood at 539 and continued to remain in the ‘severe’, as per data released by SAFAR (System of Air Quality and Weather Forecasting And Research) India.

Air Quality Index from 0 to 100 is considered as good, while from 100 to 200 it is moderate, from 200 to 300 it is poor, and from 300 to 400 it is said to be very poor and from 400 to 500 or above it is considered as severe. (ANI)

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