Delhi's air quality turns 'severe' for first time in season: Authorities
New Delhi, Oct 30: Delhi's air quality turned 'severe' on Tuesday for the first time this season with stubble burning intensifying in neighbouring states, authorities said.
The overall Air Quality Index (AQI) was 401, falling in the 'severe' category, the highest this season, Central Pollution Control Board officials said.
The Centre-run System of Air Quality Forecasting And Research (SAFAR) recorded the AQI at 410.
An AQI between 0 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'.
Eighteen areas of Delhi recorded 'severe' air quality with the highest AQI at 4 PM recorded at Anand Vihar at 467, according to data by the CPCB.
Faridabad, Ghaziabad, Gurgaon and Noida recorded 'severe' air pollution, crossing the AQI of 400. Greater Noida's air is also on the brink of turning severe, according to the data.
The Centre-run System of Air Quality Forecasting And Research (SAFAR) attributed the spike to "heavy stubble burning in the last 24 hours and calm winds".
About 28 per cent of pollution by PM2.5 (presence of particles in the air with a diameter of less than 2.5 micrometres) on Tuesday was caused due to regional factors like stubble burning, SAFAR officials said.
The Indian Institute of Tropical Meteorology (IITM) also spotted a large number of biomass fire spots through satellite imageries in neighbouring states of Delhi.
A SAFAR official said pollution is likely to increase faster now with lead pollutant as PM10 because of new development as shown by SAFAR-model where it is indicating that western disturbances may hit over western Himalayan region from October 31.
"Lot of moisture is already getting introduced in Delhi sky as an early signature. The withdrawal will bring even more moisture in the air and result in fall in temperature. Upper winds already turned north-westerly (stubble site) today. Only favourable thing is that upper wind speed is moderate and fire counts are low," the official said.
The leading factor causing severe pollution levels also include moisture and heavy air.
"The increase in surface wind speed can only prevent AQI to cross severe zone," the official said.
D Saha, former additional director and head of air quality management division in CPCB, said entire northern India coupled with the Indo-Gangetic plains are under the grip of 'severe' to 'very poor' air quality.
"There are depression in eastern India, which does not allow free flow of air from north or north west resulting in calm condition both in the upper and lower atmosphere," he said.
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Ahmedabad plane crash: Six months on, college hostel lies in ruins, sans bustle of students
Ahmedabad (PTI): Six months after the AI-171 plane crash, the B J Medical College hostel complex in Ahmedabad stands as a haunting reminder, with its charred walls and burnt trees replacing the once lively chatter of students with an eerie stillness.
Scattered across the crash site are grim remnants of daily life - burnt cars and motorcycles, twisted beds and furniture, charred books, clothes and personal belongings.
The Atulyam-4 hostel building and the adjoining canteen complex stand abandoned, with entry strictly prohibited.
For residents near the site, memories of the incident still linger, casting a lasting shadow on their lives, with some of them saying they are still afraid to look up at the sky when an aircraft passes overhead.
On June 12, Air India flight AI-171, a Boeing 787-8 Dreamliner bound for London, crashed moments after take-off from the Sardar Vallabhbhai Patel International Airport, killing 260 persons.
The aircraft slammed into the BJ Medical College hostel complex in Meghaninagar, turning a lively student neighbourhood into a landscape of ruin and grief.
"The area now lies very silent, only a few birds chirp here," Sanjaybhai, a security guard deployed at the premises by authorities to prevent trespassing, told PTI.
Mahendrasingh Jadeja, a general store owner whose shop is just 50 metres from the point where the aircraft struck, described it as an unimaginable calamity. "In all my years, I have never seen anything like this."
Pointing to a tree behind his shop, the 60-year-old said the aircraft first struck there before crashing into the hostel building.
"It was a scorching summer afternoon. Not many people were outside. When I heard a loud crashing sound, I ran out of my shop. We were all terrified," he recalled.
"Even today, we instinctively look up whenever a plane passes overhead," he added.
Another local, Manubhai Rajput, who lives barely 200 metres from the site, said he witnessed the horror unfold on June 12.
"The plane was flying unusually low. Before I could understand what was happening, there was thick black smoke and a deafening crash," he said.
For over three decades, Rajput and his neighbours lived close to the airport without giving much thought to the aircraft overhead.
"We never looked up at the sky. But that day is etched in my mind. The plane hit a tree first, and then there was a loud sound," he said.
Rajput recalled how hundreds of locals rushed to the site even before police, fire services or the Army arrived.
Tinaben, another resident of Meghaninagar, said she never imagined something like this could happen in Ahmedabad.
"Despite being close to the airport, this area always felt safe," she said.
As an aircraft roared overhead during the conversation, Tinaben paused, looked up nervously and said, "It's still scary."
A senior official of Civil Hospital Ahmedabad, speaking on condition of anonymity, said the state government has yet to decide what to do with the damaged site.
Currently, investigations are going on and the site is strictly prohibited for people, he added.
