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air quality

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A morning walker near India Gate, New Delhi. AQI was in the severe category on Friday in NW India including Delhi, Faridabad, Ghaziabad, Greater Noida, and Noida. (HT file)(HT_PRINT)

Air quality improves in Ghaziabad, Noida, Faridabad

PTI, Noida
PUBLISHED ON JAN 17, 2021 08:49 PM IST
On Saturday, it was 423 in Ghaziabad, 438 in Greater Noida, 434 in Noida, 416 in Faridabad and 316 in Gurgaon.
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NO2 is a key air pollutant from traffic emissions, associated with respiratory problems, while ozone is also harmful to health, and damages crops.(Unsplash)
NO2 is a key air pollutant from traffic emissions, associated with respiratory problems, while ozone is also harmful to health, and damages crops.(Unsplash)

Covid-19 lockdown impact on urban air quality smaller than believed: Study

PTI, London
UPDATED ON JAN 14, 2021 05:47 PM IST
The first Covid-19 lockdowns led to significant changes in urban air pollution levels in global cities such as Delhi and London, but the changes were smaller than expected.
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The maximum temperature was 19.9 degrees Celsius, a notch above normal.
The maximum temperature was 19.9 degrees Celsius, a notch above normal.

Light rain likely in some areas, temp may fall, IMD says

By HT Correspondent | Hindustan Times, New Delhi, New Delhi
UPDATED ON JAN 08, 2021 04:16 AM IST
Even as the temperature remained high on Thursday, the air quality showed a marginal deterioration, but remained in the “poor” zone.
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A man crosses the road at Tilak Marg, near ITO, on Friday when the capital witnessed dense fog.(Arvind Yadav/HT PHOTO)
A man crosses the road at Tilak Marg, near ITO, on Friday when the capital witnessed dense fog.(Arvind Yadav/HT PHOTO)

Air slips into severe zone, city witnesses first smog episode

By Soumya Pillai | Hindustan Times, New Delhi
UPDATED ON JAN 02, 2021 01:16 AM IST
Delhi Pollution Control Committee (DPCC) recordings show that the concentration of PM 2.5 (particulate matter with diameter less than 2.5 micrometres) started rising from Thursday midnight and reached above the 300ug/m3 mark.
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According to medical experts, deterioration of air quality can also cause complications in patients infected by coronavirus.(Unsplash)
According to medical experts, deterioration of air quality can also cause complications in patients infected by coronavirus.(Unsplash)

Poor air quality may affect recovered Covid-19 patients: Experts

By Press Trust of India | Pune
UPDATED ON JAN 01, 2021 05:53 PM IST
Considering the drop in temperature that deteriorates air quality, doctors in Pune city have issued a word of caution for people suffering from lung ailments, especially those who have recovered from Covid-19.
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Dense to very dense fog is very likely over Punjab, Haryana, Chandigarh, Uttar Pradesh, Rajasthan, Delhi and Uttarakhand during the next three days.(Sanjeev Verma/HT PHOTO)
Dense to very dense fog is very likely over Punjab, Haryana, Chandigarh, Uttar Pradesh, Rajasthan, Delhi and Uttarakhand during the next three days.(Sanjeev Verma/HT PHOTO)

Delhi witnesses moderate fog, min temperature drops to 3.5 degrees

By HT Correspondent | Edited by Zara Khan | Hindustan Times, New Delhi
UPDATED ON DEC 30, 2020 09:11 AM IST
Air quality in most towns and cities in northwest India is in “poor” category. However, it has improved significantly since Sunday because of strong winds
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“Cold wave” to “severe cold wave” conditions are likely in some pockets over Uttarakhand, Himachal Pradesh, Punjab, Haryana, Chandigarh, Delhi and north Rajasthan during December 28 to 30(Biplov Bhuyan/HT PHOTO)
“Cold wave” to “severe cold wave” conditions are likely in some pockets over Uttarakhand, Himachal Pradesh, Punjab, Haryana, Chandigarh, Delhi and north Rajasthan during December 28 to 30(Biplov Bhuyan/HT PHOTO)

Delhi shivers under cold wave, minimum temperature dips to 3.6° Celsius

By HT Correspondent | Edited by Zara Khan | Hindustan Times, New Delhi
UPDATED ON DEC 29, 2020 09:50 AM IST
Air quality has improved compared to last week mainly due to moderate winds
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People gathered around a bonfire on a winter evening at Yamuna Pusta Road in New Delhi.(Raj K Raj/HT PHOTO)
People gathered around a bonfire on a winter evening at Yamuna Pusta Road in New Delhi.(Raj K Raj/HT PHOTO)

Delhi’s air quality nears severe; IMD warns of cold wave from Tuesday

By HT Correspondent | Hindustan Times, New Delhi
UPDATED ON DEC 28, 2020 04:36 AM IST
The Central Pollution Control Board (CPCB) bulletin showed that the overall air quality index of Delhi on Sunday was 396, in the ‘very poor’ zone.
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Low temperature makes it easy to pick up the pace – whether you run/cycle or lift weights(Shutterstock)
Low temperature makes it easy to pick up the pace – whether you run/cycle or lift weights(Shutterstock)

Fit and fine by Kamal Singh CSCS: Training in winters

By Kamal Singh CSCS | Hindustan Times
PUBLISHED ON DEC 27, 2020 06:58 AM IST
The pros and cons of work out in cold weather
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The average 24-hour AQI at 4 pm on Saturday was 301 in Noida, 295 in Ghaziabad, 292 in Greater Noida, 260 in Faridabad and 260 in Gurgaon, according to CPCB’s Sameer app.(PTI file photo)
The average 24-hour AQI at 4 pm on Saturday was 301 in Noida, 295 in Ghaziabad, 292 in Greater Noida, 260 in Faridabad and 260 in Gurgaon, according to CPCB’s Sameer app.(PTI file photo)

Air quality ‘very poor’ in Noida; ‘poor’ in Ghaziabad, Gurugram, Faridabad

By Press Trust of India | Posted by Deepali Sharma | Noida
PUBLISHED ON DEC 19, 2020 06:31 PM IST
The CPCB states that an AQI in the “very poor” category may cause respiratory illness on prolonged exposure while “poor” may lead to breathing discomfort to people.
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A man wrapped in a blanket stands near a pile of burning garbage on a cold day, at Kashmere Gate on Friday.(Amal KS/HT PHOTO)
A man wrapped in a blanket stands near a pile of burning garbage on a cold day, at Kashmere Gate on Friday.(Amal KS/HT PHOTO)

At 278, Delhi’s AQI remains in poor category

By HT Correspondent | New Delhi, Hindustan Times
UPDATED ON DEC 19, 2020 11:17 AM IST
On Saturday, the minimum temperature is predicted to be at 4 degrees Celsius and maximum temperature at 21 degrees Celsius with partly cloudy sky towards afternoon and evening
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Mumbai witnesses sudden change in weather accompanied with drizzle.(Satyabrata Tripathy/HT Photo)
Mumbai witnesses sudden change in weather accompanied with drizzle.(Satyabrata Tripathy/HT Photo)

Unseasonal rain brings best air quality for Mumbai in 2 months

By HT Correspondent | Hindustan Times, Mumbai
UPDATED ON DEC 14, 2020 08:21 PM IST
The air quality index (AQI) on Monday was 76, falling under the satisfactory category, according to the System of Air Quality Weather Forecasting and Research (SAFAR).
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Cyclists out in amid morning fog on Sector 31 road, in Noida on Saturday, December 12, 2020. (Photo by Sunil Ghosh/ Hindustan Times)
Cyclists out in amid morning fog on Sector 31 road, in Noida on Saturday, December 12, 2020. (Photo by Sunil Ghosh/ Hindustan Times)

Air quality improves drastically in Ghaziabad, Noida, Faridabad, Gurgaon

By Press Trust of India | Posted by Arpan Rai | Noida
PUBLISHED ON DEC 14, 2020 07:01 PM IST
The average 24-hour AQI at 4 pm on Monday was 243 in Ghaziabad, 256 in Greater Noida, 176 in Noida, 120 in Faridabad and 101 in Gurgaon, according to CPCB’s Sameer app.
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Dense fog is likely to prevail in the city on Sunday along with a dip in the minimum temperature, as per weather experts(PTI)
Dense fog is likely to prevail in the city on Sunday along with a dip in the minimum temperature, as per weather experts(PTI)

Mercury to dip, dense fog to prevail, say weather experts

By HT Correspondent | Hindustan Times, New Delhi, Gurugram
UPDATED ON DEC 13, 2020 01:58 PM IST
Kuldeep Srivastava, head of IMD’s regional weather forecasting centre, said that the temperature would start dipping from Sunday onwards. He added that dense fog was likely to prevail on Sunday during the morning hours.
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The IMD had forecast that Delhi and the neighbouring towns are likely to receive rainfall on December 11 and December 12.(HT Photo)
The IMD had forecast that Delhi and the neighbouring towns are likely to receive rainfall on December 11 and December 12.(HT Photo)

Delhi wakes up to light drizzle, AQI likely to improve

By hindustantimes.com| Edited by Susmita Pakrasi | Hindustan Times, New Delhi
UPDATED ON DEC 12, 2020 08:59 AM IST
The IMD had forecast that Delhi and the neighbouring towns are likely to receive rainfall on December 11 and December 12. This is also likely to improve the air quality of the city.
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The demand for air purifiers has seen a surge this year with an increasing awareness among people to breathe clean air, which is free from allergens and disease-causing pathogens.
The demand for air purifiers has seen a surge this year with an increasing awareness among people to breathe clean air, which is free from allergens and disease-causing pathogens.

An air purifier is a necessity, not a luxury. Here’s why

By Promotional Feature, HT Brand Studio
UPDATED ON DEC 10, 2020 06:19 PM IST
As air pollution levels hit alarming levels in North India, air purifiers have become a must-have gadget in every home.
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Bad air knows no boundaries and a multiplicity of agencies working in silos doesn’t help the situation(Amal KS/HT PHOTO)
Bad air knows no boundaries and a multiplicity of agencies working in silos doesn’t help the situation(Amal KS/HT PHOTO)

Tackling pollution, beyond stubble burning | Opinion

By Sumant Sinha
PUBLISHED ON DEC 08, 2020 08:23 PM IST
While stubble burning continues to be a sensitive inter-state issue, the local administration should focus on these “internal” factors and mitigate them through proper planning, strict governance and the active participation of common citizens
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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.(Raj K Raj/HT PHOTO)
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.(Raj K Raj/HT PHOTO)

Delhi’s air quality ‘very poor’, may improve over next 2 days: IMD

By hindustantimes.com| Edited by Susmita Pakrasi | Hindustan Times, New Delhi
UPDATED ON DEC 06, 2020 01:00 PM IST
Delhi’s air quality index (AQI) was 394 at 9 am on Sunday. The 24-hour average was 404 on Saturday, which falls in the severe category.
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HT Image
HT Image

Delhi’s air slips back into severe zone as wind changes direction

By HT Correspondent | Hindustan Times, New Delhi
UPDATED ON DEC 06, 2020 02:42 AM IST
Delhi’s air quality slipped into the ‘severe’ zone on Saturday, as winds changed direction and slowed down considerably making dispersion of pollutants difficult.
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People at India Gate on a hazy afternoon in New Delhi on Friday.(Arvind Yadav/HT PHOTO)
People at India Gate on a hazy afternoon in New Delhi on Friday.(Arvind Yadav/HT PHOTO)

At 402, Delhi AQI breaches severe category again

By HT Correspondent | Hindustan Times, New Delhi
PUBLISHED ON DEC 05, 2020 10:39 AM IST
India Meteorological Department said stubble burning incidents are now negligible but local pollutants accumulated in the atmosphere have not been able to disperse because of unfavourable weather conditions.
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An earlier picture of India Gate obscured from view by haze, at Rajpath in New Delhi. (Photo by Vipin Kumar/ Hindustan Times)
An earlier picture of India Gate obscured from view by haze, at Rajpath in New Delhi. (Photo by Vipin Kumar/ Hindustan Times)

News updates from Hindustan Times: Delhi’s air quality remains in very poor category and all the latest news

By hindustantimes.com | Hindustan Times, New Delhi
UPDATED ON DEC 04, 2020 08:53 AM IST
Here are today’s top news, analysis and opinion. Know all about the latest news and other news updates from Hindustan Times.
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The green court said that during Christmas and on New Year, the use of green crackers will be allowed between 11:55 pm to 12:30 am, but only at places where air quality is in the moderate zone or better.(File photo for representation)
The green court said that during Christmas and on New Year, the use of green crackers will be allowed between 11:55 pm to 12:30 am, but only at places where air quality is in the moderate zone or better.(File photo for representation)

National Green Tribunal extends ban on firecrackers

By HT Correspondent | Hindustan Times, New Delhi
UPDATED ON DEC 03, 2020 05:55 AM IST
The National Green Tribunal on Wednesday extended the ban on the sale and use of all firecrackers during the Covid-19 pandemic in Delhi-NCR and other cities, where the ambient air quality is in the poor category or worse.
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A police picket pictured against Rashtrapati Bhawan amid hazy in New Delhi, India, on Wednesday, November 25, 2020.(Vipin Kumar/HT photo)
A police picket pictured against Rashtrapati Bhawan amid hazy in New Delhi, India, on Wednesday, November 25, 2020.(Vipin Kumar/HT photo)

Delhi’s air quality to worsen from Dec 4, may be severe on Dec 6, says Met dept

By HT Correspondent | Hindustan Times, New Delhi
UPDATED ON DEC 03, 2020 02:05 AM IST
Delhi’s air quality continued to remain in the very poor category on Wednesday as wind speed was negligible through the day. India Meteorological Department (IMD), however, said the worst is yet to come and the air quality is likely to deteriorate even further from December 4.
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As per the Central Pollution Control Board (CPCB), the AQI on Tuesday was 367, even worse than Monday’s 318, though both are in the very poor category.(AP file photo)
As per the Central Pollution Control Board (CPCB), the AQI on Tuesday was 367, even worse than Monday’s 318, though both are in the very poor category.(AP file photo)

Local emissions, weather push air to ‘very poor’ zone

By Vatsala Shrangi | Hindustan Times, New Delhi
UPDATED ON DEC 02, 2020 07:15 AM IST
According to government agencies, it is likely to remain there throughout the week owing to the wind speed calming down and wind patterns changing in the coming days.
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On Sunday, the Safdarjung Observatory recorded a minimum temperature of 7°C, three notches below normal.
On Sunday, the Safdarjung Observatory recorded a minimum temperature of 7°C, three notches below normal.

Rise in pollution, dip in mercury likely from first week of December: IMD

By HT Correspondent | Hindustan Times, New Delhi
UPDATED ON NOV 29, 2020 11:58 PM IST
As per the Central Pollution Control Board (CPCB), the average air quality index (AQI) was 256 on Sunday, up from 231 the previous day, both categorised as ‘poor’.
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Commuters on NH-24 during sunset on November 26.(Raj K Raj/HT PHOTO)
Commuters on NH-24 during sunset on November 26.(Raj K Raj/HT PHOTO)

Delhi’s air continues to remain in poor category

By HT Correspondent | Hindustan Times, New Delhi
PUBLISHED ON NOV 29, 2020 09:49 AM IST
Scientists at IMD have forecast air quality to remain in the “poor” zone till November 30, after which it is expected to deteriorate.
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The road transport authorities can ask people to get vehicles tested for pollution.(Representative Photo)
The road transport authorities can ask people to get vehicles tested for pollution.(Representative Photo)

No PUC certificate could lead to seizure of vehicle RC from next year

By hindustantimes.com | Edited by: Amit Chaturvedi | Hindustan Times, New Delhi
UPDATED ON NOV 29, 2020 07:36 AM IST
People aware of the development told Hindustan that according to the new system, the information regarding the vehicle owner will be uploaded to servers linked to Motor Vehicles database. This way, it will be very hard for people to continue using their vehicles without a PUC certificate.
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On Friday, the minimum temperature recorded at the Safdarjung observatory, which is considered the official recording for the city, was 10.1 degree Celsius.(File Photo)
On Friday, the minimum temperature recorded at the Safdarjung observatory, which is considered the official recording for the city, was 10.1 degree Celsius.(File Photo)

Marginal drop in capital’s air quality, fall in mercury likely next week: IMD

By HT Correspondent | Hindustan Times, New Delhi, New Delhi
UPDATED ON NOV 29, 2020 02:31 AM IST
Union ministry of earth sciences’ air quality monitoring centre, System of Air Quality and Weather Forecasting and Research (Safar), data shows that on Friday 499 fires were spotted over Punjab and Haryana, contributing to 4% of the Capital’s PM2.5 levels.
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Mumbai: Youngsters enjoy the clear weather while a senior citizen practises yoga on the promenade at Marine Drive.(Anshuman Poyrekar/HT PHOTO)
Mumbai: Youngsters enjoy the clear weather while a senior citizen practises yoga on the promenade at Marine Drive.(Anshuman Poyrekar/HT PHOTO)

‘Significant improvement in Mumbai’s air quality after Cyclone Nivar’: Researchers

By HT Correspondent | Hindustan Times, Mumbai
UPDATED ON NOV 28, 2020 10:11 PM IST
Air quality improvement was an after effect of the remnants of Cyclone Nivar which made landfall over the east coast as a very severe cyclonic storm north of Puducherry late on Wednesday.
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An AQI in the range of 0-50 is considered ‘good’, 51-100 ‘satisfactory’, 101-200 ‘moderate’, 201-300 ‘poor’, 301-400 ‘very poor’ and 401-500 ‘severe’.(ANI)
An AQI in the range of 0-50 is considered ‘good’, 51-100 ‘satisfactory’, 101-200 ‘moderate’, 201-300 ‘poor’, 301-400 ‘very poor’ and 401-500 ‘severe’.(ANI)

Severe to moderate in two days: Winds clean Delhi air

By Soumya Pillai | Hindustan Times, New Delhi
UPDATED ON NOV 28, 2020 12:50 AM IST
Central Pollution Control Board (CPCB) data shows that Delhi’s overall AQI on Friday was 137, considered to be in the moderate zone.
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