LONI: The small industrial city of Loni, located less than an hour from Delhi, has been ranked the most polluted city in the world.
According to a report by IQAir, Loni recorded the worst air quality globally in 2025, making daily life extremely difficult for its nearly 700,000 residents.
🌫️ Toxic Air Everywhere
The city’s air is filled with a dangerous mix of:
- Factory emissions
- Vehicle exhaust
- Construction dust
Residents say the pollution is constant and unavoidable.
Manoj Kumar, an e-rickshaw driver, said even breathing feels difficult. Another resident, Mohammad Mohmin Khan, shared that he wears a mask every time he steps outside because the air is polluted 24 hours a day.
⚠️ Dangerous Pollution Levels
The ranking is based on PM2.5 — tiny harmful particles in the air that can enter the lungs and bloodstream.
- Loni’s PM2.5 level: 112.5
- This is 22 times higher than the safe limit set by the World Health Organization
These particles can cause serious health problems, including:
- Asthma and breathing issues
- Heart and lung disease
- Cancer
- Development problems in children
🏥 Rising Health Problems
Doctors in the city report a sharp increase in illness.
Anil Singh, who runs a clinic in Loni, said more patients — especially children — are showing early signs of asthma.
Families are also struggling at home. One mother said her young child frequently suffers from coughs, allergies, and infections due to the polluted air.
Dust enters homes so easily that residents must clean multiple times a day.
🌍 Most Polluted Cities List (2025)
According to IQAir, several South Asian cities dominate the list:
- Loni (India)
- Hotan (China)
- Byrnihat (India)
- Delhi (India)
- Faisalabad (Pakistan)
- Rahim Yar Khan (Pakistan)
- Ghaziabad (India)
- Lahore (Pakistan)
- Sukkur (Pakistan)
- Ula (India)
❄️ Why Pollution Gets Worse
Pollution becomes especially severe in winter due to a phenomenon called temperature inversion.
- Cold air traps pollutants near the ground
- Dust storms and dry weather add more particles
- Smoke from crop burning increases pollution levels
This makes air quality even more dangerous during certain months.
🏭 Causes of Pollution in India
Experts say the main sources include:
- Vehicle emissions
- Industrial pollution
- Construction activities
- Burning of crop residue
Despite efforts, pollution remains a major issue in India, which has a population of over 1.4 billion.
🛠️ Government Efforts and Challenges
India launched the Clean Air Program in 2019 to reduce pollution levels by 40% by 2025–26.
Steps include:
- Monitoring air quality
- Controlling industrial emissions
- Limiting biomass burning
However, experts say progress has been slow due to weak enforcement and coordination.
Even new solutions like cloud seeding in Delhi have not been successful.
🌏 Regional Comparison
While India continues to struggle, China has reduced pollution levels after years of strict policies and heavy investment.
Meanwhile, Pakistan ranks among the most polluted countries in the world, with several of its cities also on the list.
🧭 Conclusion
For residents of Loni, pollution is not just an environmental issue — it is a daily health crisis.
Many say conditions have not improved in decades, and some feel the only solution is to leave the city.
Until stronger action is taken, millions will continue to live in dangerous air, struggling simply to breathe.







