As the cold winds of winter sweep across Nepal, a familiar haze begins to settle over the cities. The dry air of winter traps dust and smoke close to the ground, turning the sky gray and the air heavy. With ongoing construction and unfinished roads scattered across the country, the dust rises and lingers, worsening the situation. Winter, which should be a season of calm, becomes a season of smog and sickness. The situation is more intensified now as the rain stopped and the roads’ dust started to rise more.
According to the State of Global Air (SoGA) 2025 report, air pollution caused 41,300 deaths in Nepal in 2023. Even more alarming, 85 percent of these deaths were linked to noncommunicable diseases such as heart and lung disease, lung cancer, diabetes, and dementia. The report also revealed that air pollution has now become the leading risk factor for deaths in Nepal, surpassing tobacco and high blood pressure. Around the world, 7.9m deaths were attributed to air pollution in 2023, showing just how serious this issue has become.
In Nepal, pollution levels are closely tied to changes in weather. The colder and drier months always see the worst air quality across major cities. According to the Air Quality Index (AQI), Kathmandu now ranks 46th among the world’s most polluted cities, with a moderate rating, while Delhi, India, continues to top the list. This shows how winter brings not only cold winds but also a blanket of harmful air that affects everyone, especially children and the elderly.
The World Economic Forum’s Global Risks Report 2025 ranks pollution as the sixth and tenth most pressing global risk in the short term (two years) and long term (10 years).
To address this growing problem, the government has started to implement plans to reduce air pollution during the winter months. Efforts include stricter monitoring of construction sites to control dust, encouraging the use of electric vehicles, and testing emissions from older vehicles. Authorities have also banned the open burning of waste and are promoting tree plantation campaigns to help absorb pollutants. Public awareness programs are being run to educate people about the dangers of air pollution and the need to reduce activities that contribute to it, such as burning firecrackers and waste.
Prakash Lama, program coordinator at Clean Air Network Nepal (CANN), explained that the organization has been actively working to mitigate air pollution through various programs, campaigns, and awareness initiatives. He emphasized that air pollution poses a serious threat to human health and requires collective effort to address.
CANN has been conducting awareness programs in schools and at the community level to educate people about the dangers of air pollution and to encourage individuals to take responsibility in reducing it. The organization also spreads awareness through radio programs and by mobilizing mass movements to engage the public more effectively.
CANN also organizes health campaigns where the lungs of children and elderly people are checked to assess the impact of air pollution on vulnerable groups. In addition, the organization has been monitoring air quality in various locations across the country by installing air quality monitoring devices, with support from the government, in most of the provinces, residential areas, and industrial zones.
According to Lama, one of the main reasons for high air pollution in the Kathmandu Valley is its geographic structure. Because the valley is surrounded by hills, air circulation is restricted, trapping pollutants within the area. During winter, the air becomes dry and rainfall decreases, worsening the pollution levels. Lama added that forest fires, vehicular emissions, and industrial dust also significantly contribute to the problem.
He noted that around 35–40 percent of air pollution in the valley is caused by transboundary pollution (pollutants that come from outside the region). In the Tarai region, this figure rises to nearly 70 percent, showing that cross-border pollution plays a major role in deteriorating air quality.
Dan Bahadur Waiba, an inDrive rider, shared that riding becomes extremely difficult on dusty days, and the situation worsens during winter. At times, he said, it even becomes difficult to keep his eyes open while riding. During winter, Waiba added, it’s often challenging to tell the difference between fog and dust, as the air turns thick and visibility drops significantly.
At the policy level, Lama pointed out that although the government has introduced regulations setting timelines for vehicle use and prohibiting older vehicles, these rules are not being properly enforced.
Lama emphasized the need for the government to prioritize the promotion of electric vehicles (EVs) and make their adoption a major national agenda. Reflecting on the past, he recalled the use of trolley buses in Kathmandu, which were environmentally friendly, and expressed concern that Nepal seems to have moved away from such sustainable solutions in favor of market competition in the automobile sector.
Meanwhile, Waiba is planning to switch to an electric scooter after learning more about air pollution and vehicle emissions at an event he attended. He shared that the experience made him realize the importance of individual action in addressing environmental issues. Waiba expressed his belief that real change is possible when people become aware, learn, and choose to act responsibly.
Locals in Bhaktapur expressed frustration over the ongoing and incomplete road construction in several areas, including Suryabinayak Road, Sanga Road, and parts of Kavre. Residents living along these roads said that the constant dust has made daily life extremely difficult. Many shared that it has become hard to even stay inside their homes, as they need to clean their rooms every single day to keep the dust away.
They added that the situation is likely to worsen during winter, when there is little rainfall and dust levels are expected to rise further. The locals have urged the concerned authorities to speed up the construction work and take necessary measures to control dust and pollution in the area.
It doesn’t only hamper the residents but also human health which can cause many diseases. Research finds that air pollution reduces life expectancy by 3.4 years for the average Nepali and causes approximately 26,000 premature deaths annually. In addition to health, air pollution impacts labor productivity, tourism, and the aviation sector. The economic cost of poor air quality is equivalent to more than 6 percent of Nepal’s Gross Domestic Product (GDP) each year, according to the Air Quality Life Index (AQLI).
Recently, the Department of Environment collaborated with the International Centre for Integrated Mountain Development (ICIMOD) and launched the country’s first National Air Quality Management Action Plan (NAQMAP). It marked a major step in Nepal’s broader effort to reduce air pollution nationwide and to establish a comprehensive framework for managing and improving air quality.
However, experts say that much more needs to be done. Clean fuels, reliable public transport, and strict enforcement of environmental laws are essential to bring lasting change. Reducing air pollution is not only the government’s responsibility but also a duty shared by every citizen.
