Monday’s air was the worst Mumbaiites inhaled since welcoming 2018

Updated on Jan 16, 2018 09:52 AM IST
Six of 10 locations in Mumbai recorded ‘very poor’ AQI on Monday, with Bandra-Kurla Complex being the most polluted
Against the moderate level of 190 on Sunday, the AQI recorded on Monday was to 253 (poor).(Representational photo/HT file)
Against the moderate level of 190 on Sunday, the AQI recorded on Monday was to 253 (poor).(Representational photo/HT file)
Hindustan Times | By, Mumbai

The city recorded its worst air day, since the beginning of this year, on Monday. The pollutant-measuring indicator — air quality index (AQI) — saw a significant increase in pollution as compared to the levels recorded over the weekend. Against the moderate level of 190 on Sunday, the AQI recorded on Monday was to 253 (poor).

Prior to Monday, Mumbai recorded ‘poor’ AQI levels during the first week of January — ranging between 216 and 240. On January 1, the city had recorded an AQI of 220 which later dropped to 216. However, the worst AQI for the winter season was recorded on December 25 — it was 258 (poor).

Six of 10 locations in Mumbai recorded ‘very poor’ AQI on Monday, with Bandra-Kurla Complex (BKC) being the most polluted at 313, followed by Andheri, Colaba, Malad, Mazagaon, and Borivli. Chembur recorded the cleanest air in the city at 123 (moderate).

The System of Air Quality Weather Forecasting and Research (SAFAR) pegged AQI in the ‘moderate’ category for Tuesday at 172.

Researchers said weather factors were not responsible for ‘poor’ AQI and attributed the rise in pollution to external emissions. “Residential biomass burning could be the most probable reason for rise in pollution in Mumbai. Small fires during Makar Sankranti celebrations or other sources of open burning could have led to the spike. However, since it is an external factor, and wind speed, temperatures are high, pollution levels will reduce by Tuesday,” said Gufran Beig, project director, SAFAR.

Residential biomass burning was responsible for 2,68,000 deaths in 2015. Also, at 24%, it was the largest source of PM 2.5 air pollution-related health impact in India and most important single anthropogenic source of mortality due to air pollution. This was revealed by a joint study by Indian Institute of Bombay (IIT-B), and two US-based research institutes — Health Effects Institute (HEI) and Institute for Health Metrics and Evaluation (IHME).

The study also found that coal combustion, agricultural burning, anthropogenic dusts, transport, other diesel, and brick kilns also contributing significantly to the 1.1 million deaths in India due to air pollution in 2015 (see box).

The concentration of PM2.5 and PM10 was almost twice the safe limit. As against safe limit of 60 microgrammes per cubic metre (µg/m3), Mumbai recorded 110µg/m3. For PM10 (slightly larger, coarser particles), Mumbai recorded 193 µg/m3 as against 100 µg/m3 as the safe limit.

Mumbai sizzles

Temperatures across Mumbai were similar to previous days. The day temperature at Colaba was 32 degrees Celsius — 2.5 degree Celsius above normal — and 33.1 degrees Celsius at Santacruz, almost 3 degrees Celsius above normal.

The night temperature at Santacruz was 4.1 degree Celsius above normal at 21 degrees Celsius as compared to 21.8 degrees Celsius on Sunday, which was the second highest night temperature for January in the past decade. Colaba recorded 22.5 degrees Celsius on Monday, which was 3.4 degrees Celsius above normal.

Moisture levels continued to be high for the third day in a row with 93% humidity at Colaba and 89% at Santacruz. The weather bureau has predicted a clear sky for Tuesday, with day and night temperatures expected to be 33 and 20 degrees Celsius.

SHARE THIS ARTICLE ON
  • ABOUT THE AUTHOR

    Badri Chatterjee is an environment correspondent at Hindustan Times, Mumbai. He writes about environment issues - air, water and noise pollution, climate change - weather, wildlife - forests, marine and mangrove conservation

Close Story
QUICKREADS

Less time to read?

Try Quickreads

  • Panchkula’s department of animal husbandry sent 17 samples of the infected animals to a laboratory based in Bhopal for confirmation, while also having requested the vaccine.

    Lumpy skin disease cases cross 740 in Mohali, 130 in Panchkula

    Four fresh cases of lumpy skin disease (LSD) were reported from cattle in Mohali on Wednesday, while Panckula witnessed 54 new infections in the last 48 hours. The fresh cases have pushed Mohali's total count to 741 and Panchkula's tally to 133. A senior Mohali animal husbandry official said the trend suggested the disease was mainly infecting cows, while the buffalo population only saw a marginal LSD infection rate.

  • Yogesh Kumar, a resident of Himachal Pradesh, died on the spot and later his body was taken to hospital by police for postmortem examination. (Image for representational purpose)

    HP soldier shoots himself dead in Jammu

    An armyman allegedly shot Rifleman Yogesh Kumar dead with his service rifle inside a camp here, officials said on Wednesday. Rifleman Yogesh Kumar was on guard duty at Kullian camp in Miran Sahib area on the outskirts of the city when he shot himself in the head, the officials said. A resident of Himachal Pradesh, Kumar, died on the spot and later his body was taken to hospital by police for postmortem examination.

  • Director, art, language and culture, Pankaj Lalit has made a written complaint to the central government. (HT file photo for representational purpose)

    Har Ghar Tiranga campaign: HP gets defective flags, shoots off complaint to Centre

    In a jolt to the much-hyped 'Har Ghar Tiranga' campaign, the Himachal Pradesh government has sent a complaint to the central government over the delivery of damaged flags. Himachal has received over 10 lakh flags against its demand of 17 .5 lakh. Himachal has already received 10 lakh flags and the remaining ones are likely to be delivered soon. Director, art, language and culture, Pankaj Lalit has made a written complaint to the central government.

  • The labourers — both men and women — are raising similar amphitheaters in the rest of the plazas, too.

    Delhiwale: Lalu’s transitionary address

    Lalu routinely shuttles with his family between his village and the National Capital Region. “Last time we were at a construction site in Gurgaon where we lived for a few months… There, mummy used to make gas wali roti but it didn’t have the flavour of chulhe wali roti… Now, mummy makes only chulhe wali roti.”

  • Members of the Chandigarh Wine Contractors Association protesting outside the Deputy Commissioner’s office in Sector 17, Chandigarh, on Wednesday. (Ravi Kumar/HT)

    Chandigarh wine contractors protest for cut in tax on liquor

    Up in arms against the recent cut in liquor prices in Punjab that has made liquor in Chandigarh costlier, the Chandigarh Wine Contractors Association kept liquor vends closed till 5 pm on Wednesday. Demanding a decrease in the tax imposed on liquor in Chandigarh, the association members also held a demonstration outside the Deputy Commissioner's office in Sector 17. They met the deputy commissioner, who constituted a committee to look into the matter.

SHARE
Story Saved
×
Saved Articles
Following
My Reads
Sign out
New Delhi 0C
Thursday, August 11, 2022
Start 15 Days Free Trial Subscribe Now