Air pollution remains a critical issue on a global level, with some countries facing particularly severe challenges. In cities like Delhi, Beijing, and Jakarta, masks have become an essential part of daily life.
Industrial emissions, vehicular exhaust, and seasonal fires significantly contribute to hazardous air quality.
Exploring these hotspots reveals the reality of living in some of the world’s most polluted environments, so let’s take a deeper dive and examine the countries known for the worst air pollution.
India

India faces severe air pollution, especially in cities like Delhi. Industrial emissions and vehicular exhaust contribute significantly to the problem. Masks have become essential for daily life, particularly during winter when smog levels peak.
China

China’s rapid industrialization has led to alarming pollution levels. Beijing often records PM2.5 levels far above safe limits, making masks a necessity. The government has implemented measures, but many residents still rely on masks for protection.
Pakistan

Pakistan, particularly Lahore, struggles with intense smog, especially in winter. Agricultural burning and industrial emissions are major culprits. Wearing masks has become commonplace to combat the health risks associated with polluted air.
Bangladesh

Dhaka, the capital of Bangladesh, frequently ranks among the cities with the worst air quality. Brick kilns and vehicle emissions contribute heavily to pollution. Masks are vital for residents, especially during the dry season when air quality deteriorates.
Indonesia

Jakarta and other Indonesian cities face significant air pollution from both traffic and seasonal forest fires. These fires often cause haze that blankets entire regions. People wear masks to protect themselves from the hazardous air.
Nepal

Kathmandu, Nepal’s capital, suffers from high pollution levels due to vehicle emissions and construction dust. The city’s bowl-shaped geography traps pollutants, worsening air quality. Masks are a common sight among commuters and pedestrians.
Thailand

Bangkok’s air quality is often poor and influenced by traffic, industrial activities, and regional agricultural fires. During certain months, the pollution reaches hazardous levels. Residents and tourists alike use masks to mitigate exposure.
Mongolia

Ulaanbaatar, Mongolia’s capital, experiences severe pollution, especially in winter when coal burning for heating is rampant. The city’s air quality is among the worst globally during this period. Masks are essential for residents to avoid respiratory issues.
Iran

Tehran faces chronic air pollution due to heavy traffic and industrial activities. The city’s location in a valley exacerbates the problem by trapping pollutants. Masks are widely used, especially during high pollution alerts.
Saudi Arabia

Riyadh and other major cities in Saudi Arabia deal with pollution from vehicles and industrial sources. Dust storms also contribute to poor air quality. Masks provide protection against both man-made and natural pollutants.
Egypt

Cairo’s air pollution is driven by traffic, industrial emissions, and open burning of waste. The city’s dense population adds to the problem. Masks are often worn to shield against the harmful effects of the polluted air.
Vietnam

Hanoi and Ho Chi Minh City struggle with air pollution from traffic and industrial activities. The burning of crop residues also impacts air quality. Residents commonly wear masks, especially during peak pollution periods.
Philippines

Manila faces significant air pollution challenges, primarily from vehicular emissions. The city’s traffic congestion exacerbates the situation. Masks are essential for many people, particularly during the dry season when pollution is worse.
South Korea

Seoul experiences frequent air quality issues due to both domestic emissions and pollution drifting from China. The city implements emergency measures, but masks are still widely used. They offer a layer of protection against fine dust particles.
Nigeria

Lagos, Nigeria’s largest city, has severe air pollution from traffic, industrial activities, and generator fumes. The city’s rapid urbanization has outpaced its environmental controls. Masks are necessary for many to cope with the toxic air.
Mexico

Mexico City has battled air pollution for decades, primarily from traffic and industrial sources. High altitude and a surrounding mountain range trap pollutants. Masks are often worn to reduce exposure to harmful air contaminants.
Chile

Santiago faces significant air pollution, especially in winter, when temperature inversions trap pollutants. The city’s geography and vehicular emissions are major factors. Masks are commonly used during the smoggy season to protect respiratory health.
Brazil

São Paulo deals with pollution from traffic, industrial activities, and occasional forest fires. The city’s vast population and vehicle fleet contribute heavily to poor air quality. Masks are a regular accessory for many residents.
Turkey

Istanbul struggles with air pollution from traffic, industry, and coal burning for heating. The city’s location between continents also impacts its air quality. Masks are frequently worn, particularly during pollution spikes.
Russia

Moscow experiences pollution from traffic, industrial emissions, and coal burning. Winter inversions often worsen the air quality. Masks are a common sight during these periods to safeguard against health risks.
United States

Cities like Los Angeles and New York face ongoing air pollution challenges from traffic and industry. Wildfires in the western U.S. also contribute to severe pollution episodes. Masks have become a staple, especially during wildfire seasons.