Nepal barely gets a breather between disasters. As the monsoon flood season winds down, the country braces for its winter smog — a stretch of months when breathing in Kathmandu Valley becomes genuinely hazardous. Smoke from rice stalk burning in the Punjabs, visible already on NASA infrared satellite images, will drift in on prevailing winds, mix with Diwali fireworks, and get trapped by winter temperature inversion over the valley. Come spring, wildfire season takes over, then the floods return. A rolling cycle of overlapping hazards, made worse by climate breakdown and seismic risk.
The timing is raw. This week the government formally ended search and rescue operations for the more than 5,200 people still missing from the 26 August disaster, shifting focus to rehabilitation. Over 30,000 people are displaced, and the urgent groundwork now includes death certificates for grieving families — the paperwork that unlocks compensation, insurance, property documents and citizenship records.
The pollution problem is only partly Nepal's own. Scientists analysing Kathmandu's particulates found roughly half is transboundary, drifting in from beyond the border. The rest is homegrown: diesel exhaust, brick kilns, open burning, and 1.3 million motorcycles pumping out carbon monoxide and ozone — pollutants that are invisible and odourless, so they escape casual notice even as they do damage.
The numbers are stark. Air pollution shaves an estimated 3.5 years off the lifespan of long-term Kathmandu Valley residents and contributes to around 41,000 deaths in Nepal annually, through asthma, COPD, pneumonia and other chronic conditions.
A new survey by the TAZA initiative polled 1,200 valley residents this week. Over 80% rated air quality as hazardous or extremely hazardous, blaming vehicles, open burning and industry. Nearly 60% called out the government for inaction — including asking where the pollution tax (now a green tax) that citizens have paid for years has actually gone, given it was meant to fund clean energy.
The puzzle, as the reporting points out, is why such high public awareness hasn't translated into political pressure. Nepalis take to the streets over loan sharks and corruption, but not over air quality — despite it being their single biggest worry. The proposed fix is less about awareness campaigns and more about options: subsidising electric transport and household appliances so clean choices become affordable, which would also cut Nepal's hefty petroleum import bill.
Why should travellers care? Anyone visiting Kathmandu in winter (roughly December to February) should know the valley's air can be the worst of the year. Check AQI readings before and during your trip, consider a rated N95 mask for long days outdoors, and favour the clearer months — October-November before smog sets in, or March-April after it lifts, keeping wildfire smoke in mind in spring. Travellers with respiratory conditions may want to plan valley time carefully or build in escapes to Pokhara or the hills, where air is typically cleaner. And if you go in winter, you'll see firsthand the issue locals rank above everything else — worth factoring into how you travel, and a good reason to choose electric or shared transport where you can.
Sonia Awale, Nepali Times
