Page 25 - Air Quality Index

Relief from prolonged humidity after parts of Delhi receive rainfall

Several parts of the national capital witnessed rain on Sunday, finding relief from prolonged humidity. The maximum temperature on Sunday was recorded as 37.1 degree Celsius, two notches above the season's average, according to the India Meteorological Department. The weather department has predicted a generally cloudy sky with light rain during the evening. The minimum temperature was 27.6 degree Celsius. The Air Quality Index (AQI) of the national capital was recorded in the "moderate" category with a reading of 109 at 6 pm, according to the Central Pollution Control Board. An AQI between zero and 50 is considered "good", 51 and 100 "satisfactory", 101 and 200 "moderate", 201 and 300 "poor", 301 and 400 "very poor", and 401 and 500 "severe".

Delhi's action plan to check air pollution to launch from Jun 15: Gopal Rai

Delhi's summer action plan to control air pollution in the national capital will come into effect from June 15, Environment Minister Gopal Rai said on Thursday. The city government has come up with a summer action plan, which will mainly focus on tree plantation, Rai said at a press conference. "We held a meeting on Thursday in which 30 departments participated. The focus of the summer action plan will be on tree plantation. From June 15 to September 15, the government will work by focusing on 12 key points of the summer action plan," he said. The greening agencies have been directed to prepare their action plans, he added. Delhi's Air Quality Index (AQI) fluctuated between 'moderate' and 'poor' during May 24 to June 12, Rai said and added that dust particles play an important role in summer pollution. All the agencies will jointly run an anti-dust campaign from June 15 to June 30. For this, 580 patrolling teams will go on inspections and monitor if dust control measures at ...

Delhi records below average minimum temperature of 8.8 degrees, says IMD

It was a chilly morning in the national capital on Thursday as the minimum temperature settled five notches below the season's average at 8.8 degrees Celsius, the Met office said. The city is likely to experience a partly cloudy sky during the day and the maximum temperature is expected to hover around 25 degrees Celsius, the India Meteorological Department (IMD) said. The relative humidity at 8.30 am was 75 per cent, the IMD bulletin said. According to the Central Pollution Control Board (CPCB), the overall Air Quality Index (AQI) at 9 am stood at 179. An AQI between zero and 50 is considered "good", 51 and 100 "satisfactory", 101 and 200 "moderate", 201 and 300 "poor", 301 and 400 "very poor", and 401 and 500 "severe".

Delhi logs best air quality for Feb in 9 years, AQI below 200 on most days

The data also showed that the national capital did not see a single day with an AQI above 400 in February. An AQI of above 400 marks the 'severe' category

Rare triple-dip La Nina behind unusual AQ trend in India in 2022-23: Study

An unprecedented triple-dip La-Nina event, extended by climate change, triggered a peculiar trend in the 2022-23 winter season where air quality improved in north India while peninsular India recorded an increase in pollution levels, according to a new study released on Sunday. The three consecutive years of La Nia conditions (2020-23) - a rare triple-dip phenomenon - had widespread impacts on the ocean and climate across the globe. The study by a team of scientists led by Gufran Beig, Chair Professor, National Institute of Advanced Studies, emphasised that besides local emissions, rapidly changing climate is a significant factor affecting air quality. Published in the Elsevier Journal, the study reveals that the air quality worsened in peninsular Indian cities in the 2022-23 winter season but improved in the northern part of India, contrary to the trends seen in recent decades. Among the north Indian cities, Ghaziabad registered the most significant improvement with a reduction of

After rainfall, dry spell expected in northwest India; Delhi temp to drop

From Tuesday onwards, schools in the national capital will resume normal timings as weather conditions improve

Delhi temperature dips to 9 degrees Celsius, trains delayed over 10 hrs

Centre holds off on imposing stricter curbs on pollution as Delhi continues to grapple with 'very' poor to 'severe' air quality

Delhi AQI severe for second time in 3 days, Centre delays stricter curbs

The Centre on Friday decided to delay implementation of stricter measures to curb pollution in Delhi-NCR despite the 24-hour average AQI in Delhi breaching the 400-mark for the second time in three days. Delhi's 24-hour average Air Quality Index (AQI) stood at 409 at 4 pm, a level requiring authorities to invoke stricter curbs under Stage III of the Centre's Graded Response Action Plan (GRAP) to control air pollution. The CAQM sub-committee for operationalisation of GRAP convened an emergency meeting and took stock of the air quality situation, projected AQI and meteorological forecasts, a statement said. According to the India Meteorological Department (IMD) and the Indian Institute of Tropical Meteorology (IITM), a dip in temperature and foggy weather allowed accumulation of pollutants in Delhi on Friday. Forecasts by the IMD and the IITM suggest an improvement in Delhi's air quality from Friday itself. It is expected to be in the 'very poor' category in the coming days, the ...

Dense fog grips Delhi-NCR amid ongoing coldwave; flight delays reported

The air quality is expected to remain in the 'very poor' category for the rest of the week

Delhi's max temperature 15.8 degrees Celsius, five degrees below normal

The national capital on Sunday recorded a maximum temperature of 15.8 degrees Celsius, five notches below the season's average, according to the India Meteorological Department. The minimum temperature was 4.8 degrees Celsius while the humidity level at 5.30 pm was 71 per cent. According to the railways, 11 Delhi-bound trains were delayed by up to four hours on Sunday due to foggy conditions. The weather office predicted mainly clear sky, dense to very dense fog and cold day conditions for January 22. The Air Quality Index (AQI) at 6 pm was recorded at 344, which is in the 'very poor' category, according to the Central Pollution Control Board (CPCB). An AQI between zero and 50 is considered "good", 51 and 100 "satisfactory", 101 and 200 "moderate", 201 and 300 "poor", 301 and 400 "very poor", and 401 and 500 "severe".

North India wakes up to thick layer of fog, trains, flights delayed

A thick layer of fog cloaked the Indo-Gangetic plains in north India on Tuesday, with poor visibility disrupting road and rail traffic. Satellite imagery showed a dense elongated band of fog stretching from Punjab to the northeast. A spokesperson for the railways said 30 trains arriving in Delhi were delayed by up to six hours due to foggy weather. At 5:30 am, visibility levels stood at zero metres in Varanasi, Agra, Gwalior, Jammu, Pathankot and Chandigarh; 20 metres in Gaya; 50 metres in Prayagraj and Tezpur; 100 metres in Agartala; 200 metres in Amritsar; and 300 metres in Gorakhpur. At the Palam Observatory near the Indira Gandhi International Airport in Delhi, visibility was limited to only 50 metres. Early morning foggy weather in north and northeast India has heavily impacted road, rail and air traffic over the last fortnight. On Monday, five flights were diverted and more than 100 flights were delayed at the Delhi airport. Civil Aviation Minister Jyotiraditya Scindia sai

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Delhi lags in meeting clean air targets; 24 trains delayed amid dense fog

India Meteorological Department (IMD) expects the temperatures to begin rising today onwards

Delhi AQI: Air quality continues to be very poor; cold weather grasps city

The IMD has issued health advisory to the public warning against lung-related health impacts due to the cold wave and dense fog

Delhi AQI continues to be very poor after Stage III of Grap norms revoked

Delhi pollution news today: The restrictions under the Stage-III of Grap norms were lifted in the capital on Monday as the AQI continues to remain below 400

Delhi recorded the most polluted December in 2023 in the last five years

However, the government data showed that overall, 2023 had the best air quality since 2018, barring 2020 when the pollution was low owing to the country-wide lockdown

Delhi air quality: AQI in capital 'very poor' on Monday, fog thins out

Delhi weather update: Moderate to dense fog conditions were likely to prevail in many places in Delhi with mainly clear sky, according to the Regional Meteorological Centre (RMC)

Delhi air quality: AQI in multiple parts of capital 'very poor' on Thursday

Delhi AQI update: Delhi's AQI is likely to remain in the 'very poor' category till December 30, the Early Warning System (EWS) predicted. On Wednesday, the overall AQI in Delhi was recorded at 380

Dense fog; flights, trains cancelled: Delhi wakes up to inclement Wednesday

While the overall AQI continued to remain 'very poor' at 383 on Wednesday morning, parts of the national capital witnessed the air quality dip to 'severe'

Delhi air quality: AQI in parts of the capital rises to 'severe' on Friday

Delhi air quality update: The national capital's AQI would fluctuate between 'very poor' and poor' in the next four days