The use of private vehicles may be stopped in Delhi if air pollution, which has reached severe levels in recent days, gets worse, a senior environmental official said on Tuesday.
Toxic smog has started to envelope vast swathes of the northern part of the country, including Delhi, as it does each year when winter approaches and farmers burn off the residue of crops.
"Let us hope the air pollution situation in Delhi doesn't deteriorate but if it turns out to be an emergency, we will have to stop the use of private transport," said Bhure Lal, chairman of the Environment Pollution Control Authority (EPCA). "There is a committee which will advise me on this."
The EPCA, appointed by the Supreme Court, has already proposed halting construction, the use of diesel-run power generators, brick kilns and the burning of garbage between November 1 and November 10 when pollution levels are expected to rise.
Data from the Central Pollution Control Board showed the air quality index, which measures the concentration of poisonous particulate matter, hit 469 in parts of Delhi on Tuesday, up from 299.4 a week ago.
Crop stubble burning, a major source of pollution, vehicular exhaust and a drop-off in wind speeds have aggravated the smog that is likely to worsen around November 7, when fireworks will set off to celebrate Diwali.
As a blanket of haze settled over Delhi, the leaders of the ruling Aam Aadmi Party and a central government minister sparred over what to do.
"Every year Delhi suffers because of the ineptness of the federal government and the state governments of neighbouring Punjab and Haryana states," Delhi Chief Minister Arvind Kejriwal said in a tweet.
Farmers in Punjab and Haryana states, the country's bread basket, start burning the residue of the previous crop to prepare for new plantings in November.
Defending the government, Environment Minister Harsh Vardhan said his ministry and the state governments of Punjab and Haryana have tried to reduce stubble burning and the Delhi government must intensify its own efforts to help curb pollution.
Womens' Asia Cup: Jemimah Rodrigues, Dayalan Hemalatha, Harmanpreet Kaur Solving India's No 3 Conundrum Delhi Government Must Take Blame For Permission To Fell 422 Trees: Supreme Court "If I Have To Pick...": Anjum Chopra On India Squad For Women's Asia Cup UP BJP Chief Tells PM He Wants To Quit, Amit Shah In Action Amid Rejig Buzz Flying Squad Climbs Wall, Crashes Rajasthan School Exam, Finds Mass Cheating "I Divorce You... Your Ex-Wife": Dubai Princess Dumps Husband In Insta Post Nagaland Board Releases Compartment Results For Class 10, 12 UP Inspector Among 3 Cops Suspended For Drinking Alcohol In Office 2024 Suzuki Avenis 125 Launched In India, Features New Colours & Graphics Track Latest News Live on NDTV.com and get news updates from India and around the world.