Temperatures in Nepal have dropped significantly recently. The lowest temperature in the Kathmandu Valley on the morning of the 27th fell to 7.4 degrees Celsius, a decrease of 3 degrees Celsius from 10 degrees Celsius at the same time last week, within a week.
The highest temperature in Kathmandu that day was 19.2 degrees Celsius, also lower than last week's 20.2 degrees Celsius. Meteorologists say this cold wave is related to the seasonal change, and the chill in the mornings and evenings is expected to intensify further in the coming days.
The drop in temperature has increased fuel consumption for heating in the Kathmandu Valley. At the same time, many areas are burning dry leaves and crop straw, resulting in large amounts of smoke and dust, which has led to a continuous increase in air pollution in Kathmandu recently.
On the 27th, Kathmandu's AQI (Air Quality Index) exceeded 100 at one point. Reporters have also observed a distinct layer of smoke and dust covering Kathmandu in the surrounding hills recently.
Environmental experts point out that less rainfall and weaker winds in winter make it difficult for smoke and dust in the valley to disperse in time. Combined with factors such as vehicle exhaust, road dust and industrial emissions, Kathmandu ranks among the most polluted cities in the world almost every year during this period.
