Kiera Jefferson
Lahore, the cultural capital of Pakistan, has been dubbed the world's most polluted city. In 2024, Lahore's smog levels skyrocketed to an AQI of 1067, with some parts of the city reaching 1902 AQI. The city's air pollution is caused by a combination of vehicle and industrial emissions, smoke from brick kilns, crop residue and waste burning, construction site dust, and tree loss. The government has taken measures to reduce pollution, including closing schools and banning certain vehicles, but the slow reaction to the problem has led to health complications for citizens and disrupted flights and road travel.
| Characteristics | Values |
|---|---|
| Air Quality Index (AQI) score | 1165 (more than 120 times the levels recommended by the World Health Organization) |
| PM2.5 concentration | 12.2 times the World Health Organization's annual guideline value |
| Ranked | Number 10 in the 2018 World Air Quality Report |
| Air Pollution Causes | Vehicle and industrial emissions, smoke from brick kilns, burning of crop residue and general waste, dust from construction sites, large-scale losses of trees |
| AQI Criticism | Underreporting the severity of the pollution |
| Real-time AQI level | 92 (Moderate) as of June 20, 2025 |
| Worst AQI level in the last 24 hours | 106 (Poor) at 7:10 PM on June 20, 2025 |
| AQI App | Available on Apple Watch |
| AQI Advice | Limit outdoor activities when AQI is poor, clean indoor air with an air purifier, soothe the respiratory tract with herbal teas or warm water |
| AQI Health Impact | Risk of asthma symptoms, frequent wheezing, noticeable shortness of breath, chest tightness, persistent cough |
| Smog AQI | 1067 on a Saturday morning in November 2024 |
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What You'll Learn
- Lahore's air pollution is 120 times the level recommended by the World Health Organization
- The Pakistani government has been criticised for its slow response to Lahore's pollution crisis
- Lahore's air pollution is caused by vehicle and industrial emissions, construction, and crop burning
- Lahore's smog has disrupted flights, caused road closures, and affected the health of citizens
- Lahore's air pollution is monitored by citizen-operated sensors and the U.S. State Department
Lahore's air pollution is 120 times the level recommended by the World Health Organization
Lahore, Pakistan's second-largest city, has been dubbed the world's most polluted city by Swiss group IQAir, with an air quality index (AQI) score of 1165. This figure is more than 120 times the levels recommended by the World Health Organization (WHO). The air pollution in Lahore is caused by a combination of vehicle and industrial emissions, smoke from brick kilns, the burning of crop residue and general waste, and dust from construction sites.
The problem of air pollution has been steadily worsening in Lahore and many other cities in Punjab, the most populous province in Pakistan with an estimated population of 110 million people. Five cities in Punjab were listed among the 50 most polluted cities in the world in 2020. Lahore's air quality usually worsens during the winter season from October to February when farmers in the wider Punjab province burn the remnants of crops, adding smoke to the smog. At the same time, temperature inversion prevents warm air from rising, trapping air pollutants in the atmosphere.
Lahore's high levels of air pollution have shocked the public and become a media talking point. The resulting publicity led to a public interest petition to review the government's response to the smog crisis, which was heard at Lahore's High Court in November 2017. The government has taken some measures to address the pollution, including setting up a "'smog war room' to monitor the situation and curb activities that contribute to the problem. Prime Minister Imran Khan has stated that tackling air pollution is a priority, and authorities have worked to reduce pollution from brick kilns.
However, decision-makers have been criticised for their slow reaction to the pollution problem. In 2019, Pakistan's minister of climate change dismissed the growing concern about Lahore's smog as a conspiratorial attempt to spread misinformation. Many officials continue to blame stubble burning by Indian farmers as the main cause of Lahore's smog, which may be a tit-for-tat response to similar accusations from India. While crop burning is a contributing factor, experts state that Lahore's smog is caused by a combination of meteorological and anthropogenic factors, including vehicle emissions, industrial activity, and the loss of trees to urban development.
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The Pakistani government has been criticised for its slow response to Lahore's pollution crisis
Lahore, Pakistan's second-largest city, has been dubbed the world's most polluted city. The city's air quality index (AQI) score has been recorded at over 1000, more than 120 times the levels recommended by the World Health Organization (WHO). This toxic smog has disrupted flights, caused major road closures, and severely impacted the health of Lahore's citizens.
The Pakistani government has faced criticism for its slow response to Lahore's pollution crisis. In 2019, Pakistan's minister of climate change dismissed the growing concern about Lahore's smog problem as a conspiratorial attempt to spread misinformation. This denial of the issue has been a source of frustration for environmental activists and lawyers, who have been advocating for cleaner air in the country.
While the government has taken some steps to address the pollution, such as imposing a provincial embargo on Euro 2 fuel supplies and setting up a "smog war room," these actions have been criticized as inadequate and too slow. The government has also been blamed for using smoke-laden wind from neighboring India as an excuse to avoid taking more serious action against local emissions.
The lack of urgency in addressing Lahore's pollution crisis has had severe consequences for the health and well-being of the city's residents. Prolonged exposure to hazardous air can lead to asthma, lung damage, bronchial infections, strokes, heart problems, and shortened life expectancy. It is estimated that 128,000 Pakistanis die annually due to air pollution-related illnesses.
Lahore's pollution problem is multifaceted and requires a multipronged approach. Improved urban planning, regularization of waste management in slums, and more efficient urban management to reduce vehicular emissions are some of the suggested strategies to tackle the issue. However, critics argue that the government's current plans, such as the Ravi Riverfront Urban Development Project, will worsen pollution and air quality in Lahore.
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Lahore's air pollution is caused by vehicle and industrial emissions, construction, and crop burning
Lahore, Pakistan, has been dubbed the most polluted city in the world, with an air quality index (AQI) score of 1165—over 120 times the World Health Organization's recommended levels. The city's air pollution is caused by a combination of vehicle emissions, industrial emissions, construction, and crop burning.
Vehicle emissions are a significant contributor to Lahore's poor air quality. The city has witnessed a surge in the number of vehicles on its roads, leading to increased vehicular emissions. In addition, officials have attributed the problem to the use of poor-quality fuel in automobiles.
Industrial emissions also play a major role in Lahore's air pollution crisis. Unregulated polluting factories and industrial activity release smoke and emissions into the atmosphere daily. The burning of fossil fuels by power producers and the transport sector has been identified as a particular concern. Additionally, the burning of coal in thousands of brick kilns across the province further exacerbates the issue.
Construction activities in Lahore have contributed to the city's air pollution. Massive infrastructure and housing projects generate large amounts of dust, which remains suspended in the air. Tree-cutting associated with these projects further reduces the ability to absorb CO2, worsening the overall air quality.
Crop burning, particularly in neighbouring India, has also been implicated in Lahore's air pollution. During certain seasons, farmers in India burn crop residues to clear fields for the next planting. The smoke from these fires can drift into Lahore, located only about 20-25 km from the Indian border. However, the extent of the impact of crop burning on Lahore's air quality has been debated, with some reports suggesting that crop burning may not be a major contributor.
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Lahore's smog has disrupted flights, caused road closures, and affected the health of citizens
Lahore, the capital of Pakistan's most populous province, Punjab, has been dubbed the world's most polluted city. In November 2024, Lahore was rated the world's most polluted city by Swiss group IQAir, with an air quality index (AQI) score of 1165—more than 120 times the levels recommended by the World Health Organization (WHO). The city has a population of about 13 million and is a key hub for commerce, banking, and industry.
The smog is attributed to a combination of vehicle emissions, industrial pollution, and the seasonal practice of crop burning. In 2021, Lahore repeatedly topped the daily ranking of the most polluted cities in the world, with its fine particulate count rising above 40 times the WHO's air quality guideline values. Prolonged exposure to such hazardous air quality can lead to various health complications, including asthma, lung damage, bronchial infections, strokes, heart problems, and shortened life expectancy. The Global Alliance on Health and Pollution estimated that in 2019, approximately 128,000 Pakistanis died from air pollution-related illnesses.
To combat the pollution crisis, the Punjab government has set up a "smog war room" to monitor the situation and take action. Authorities have urged residents to limit outdoor activities, use air purifiers, and wear masks to reduce exposure to toxic air. There have also been calls to reduce industrial emissions, curb crop burning, and address urban planning issues.
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Lahore's air pollution is monitored by citizen-operated sensors and the U.S. State Department
Lahore, Pakistan, has been ranked among the most polluted cities globally in the last decade. The city has repeatedly topped the daily ranking of the most polluted city in the world. The air pollution in Lahore is caused by a combination of vehicle and industrial emissions, smoke from brick kilns, the burning of crop residue and general waste, and dust from construction sites. Other factors include large-scale losses of trees to build new roads and buildings.
Lahore's air pollution problem has been steadily growing, and in 2017, the issue rose to the top of the public's consciousness when actionable air quality data was published for the first time in Pakistan. In the absence of publicly available government data, a network of citizen-operated sensors began to monitor fine particulate matter (PM2.5) and report data in real time. These citizen-operated sensors continue to play a vital role in monitoring Lahore's air pollution, as Pakistani authorities still do not publish any real-time PM2.5 air quality data as of November 2019.
The data collected by the citizen-operated sensors revealed Lahore's alarmingly high levels of air pollution, which sparked widespread public concern and media attention. This led to increased scrutiny of the government's response to the smog crisis, with a public interest petition being heard at Lahore's High Court in November 2017. The Punjab government has also set up a "smog war room" to monitor the situation and oversee actions to combat pollution.
In addition to the citizen-operated sensors, the U.S. State Department has also been monitoring and publishing real-time PM2.5 data in Lahore. The U.S. Embassy in Islamabad and the U.S. Consulate in Lahore began these efforts in the first half of 2019. The availability of data from both citizen-operated sensors and the U.S. State Department has helped shed light on Lahore's air pollution problem and driven efforts to address it.
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Frequently asked questions
Lahore is the capital of Pakistan's most populated province, Punjab, and has around 13 million people. The city has repeatedly been ranked as the most polluted city in the world, with an air quality index (AQI) score of 1165—over 120 times the levels recommended by the World Health Organization (WHO).
Lahore's air pollution is caused by a combination of vehicle and industrial emissions, smoke from brick kilns, the burning of crop residue and general waste, and dust from construction sites.
The Punjab provincial government has ordered schools, offices, malls, and parks in Lahore to close when pollution is at dangerous levels. The government has also set up a smog war room to monitor the situation and oversee action to combat the pollution. Prime Minister Imran Khan has said that tackling air pollution is a priority, and authorities have taken measures to reduce pollution from brick kilns.
Prolonged exposure to Lahore's hazardous air can cause various health complications, including asthma, lung damage, bronchial infections, strokes, heart problems, and shortened life expectancy.
