Lahore, Karachi among most polluted cities worldwide as Pakistan grapples with smog

Birds fly past on a street amid dense smog in Lahore, Pakistan, on November 1, 2025. (AFP)
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Updated 04 November 2025
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Lahore, Karachi among most polluted cities worldwide as Pakistan grapples with smog

  • Lahore records Air Quality Index of 394, deemed “hazardous” by Swiss air monitoring agency
  • Pakistan’s industrial and commercial hub Karachi ranks at number 4 in world’s most polluted cities

ISLAMABAD: Lahore, the capital of Pakistan’s Punjab province, was ranked as the most polluted city in the world again on Tuesday as authorities grapple with toxic smog. 

Dense, toxic smog has become a recurrent public health emergency in Pakistan’s second-largest city and cultural capital. Smog in the recent past has led to lockdowns and school closures in Punjab while residents have reported impaired visibility and respiratory difficulties due to the pollution. 

Lahore recorded an Air Quality Index (AQI) of 394, categorized as “hazardous” at 9:40 am local time on Tuesday, according to Swiss air monitoring agency IQAir. The eastern city also recorded a PM2.5 of 272 µg/m³. The PM2.5 refers to floating particulate matter in the air measuring 2.5 micrometers in diameter or less that can be absorbed into the bloodstream upon inhalation.

“PM2.5 concentration is currently 54.4 times the World Health Organization annual PM2.5 guideline value,” IQAir said on its website regarding air pollution in Lahore. 

Pakistan’s southern port city of Karachi, also the country’s industrial hub, recorded an AQI of 164 at the same time to rank at number four on the list of top polluted cities worldwide. Karachi’s air was categorized as “unhealthy” by the Swiss monitoring agency. 

Smog season begins in late October and peaks from November to January, lasting through February. It is spurred on by crop burning, vehicle emissions and industrial pollution every winter season in Punjab’s plane areas. 

Punjab authorities have attempted to mitigate the effects of smog. Last month, Punjab conducted its first anti-smog gun operation, which helped lower the city’s unhealthy air quality levels. Anti-smog trucks sprayed fine water mist across the city to help settle dust and pollutants.

Civic authorities are also promoting large-scale tree planting as a mitigation strategy, Raja Mansoor Ahmed, director general of the Parks and Horticulture Authority (PHA) in Lahore, told Reuters. 

 Outlining ongoing efforts, he said under the Lungs of Lahore project, the government has planted around 350,000 trees so far. He said this year, Punjab added 150,000 trees along the city’s Ring Road project. 

“We’re launching the Ring Forestation of Lahore project, aiming to cover 113 kilometers around the city with 2.1 million trees,” Ahmed said.

He confirmed that the “project is approved, and we’ll commence work once funds are released,” positioning it as a long-term measure to combat the city’s severe environmental degradation.


Suicide bomber attacks security check post in northwestern Pakistan, kills civilian

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Suicide bomber attacks security check post in northwestern Pakistan, kills civilian

  • Sixteen civilians, two security personnel wounded in blast near the Afghan border town of Miran Shah
  • Attack comes amid rising militancy as Pakistan steps up military campaign across the Afghan border

PESHAWAR: A vehicle-borne suicide bomber targeted a security check post in Pakistan’s northwestern district of North Waziristan on Friday, killing at least one civilian and wounding 16 others, several critically, police and hospital officials said.

The attack struck the Chashma Sarband check post on the Bannu–Miran Shah road in Miran Shah, the main town in the restive tribal district bordering Afghanistan, police said.

The blast comes amid a resurgence of militant attacks in Pakistan’s northwestern border regions and growing tensions with neighboring Afghanistan, where Islamabad says armed groups responsible for violence in Pakistan are based.

“Sixteen civilians were among those wounded, four of whom were in critical condition,” said Dr. Asif Iqbal, the medical superintendent at the district headquarters hospital in Miran Shah.

“One person has died at the hospital,” he said, adding that more injured victims were expected to be brought in.

Police spokesman Fazal Khan said the vehicle-borne suicide attack targeted the security checkpoint along the busy highway.

Two members of the security forces were also wounded in the explosion, he said.

Chief Minister of Khyber Pakhtunkhwa Sohail Afridi condemned the attack and ordered authorities to submit a report on the incident.

“The incident in which civilians were injured in the Miran Shah Chashma check post explosion is tragic,” he said in a statement.

Afridi directed officials to ensure the best possible medical treatment for the injured and said emergency services and hospital staff had been placed on high alert.

“Cowardly acts of terrorism cannot weaken the resolve of the government and the public,” he added.

Pakistan has witnessed a rise in militant violence in recent months, particularly in regions bordering Afghanistan, where officials say groups such as the Tehreek-e-Taliban Pakistan (TTP), also known as the Pakistani Taliban, operate from bases across the frontier.

Islamabad accuses Afghanistan’s Taliban authorities of sheltering militants who carry out attacks inside Pakistan, a charge Kabul denies.

The tensions have escalated further after Pakistan launched air strikes inside Afghanistan earlier this year targeting what it described as militant camps, triggering cross-border clashes between the two neighbors and prompting Islamabad to expand military operations along the frontier.

Pakistan says the campaign, dubbed “Ghazab Lil Haq,” will continue until militant threats from across the border are neutralized.