KATHMANDU: Air pollution levels in Kathmandu Valley remain high today, with air quality continuing to pose health concerns.
According to the Air Quality Index (AQI), the Valley is currently ranked the first most polluted city in the world as of Sunday, 12 noon. The AQI stands at 180, which falls under the “unhealthy” category. An AQI between 201 and 300 is considered “very unhealthy.”
Similarly, New Delhi ranks second globally, with an AQI of 163. As per World Health Organization standards, AQI levels should ideally remain below 35 for optimal human health, although up to 50 is considered acceptable. Levels above this threshold begin to pose health risks.
An AQI of 51–100 is considered moderate, while 101–150 is unhealthy for sensitive groups, particularly those with respiratory or heart conditions.
Levels between 151 and 200 are categorized as unhealthy for the general population. AQI readings from 201 to 300 are considered very unhealthy, 301 to 400 hazardous, and above 400 extremely hazardous.
Air pollution levels were even higher three days ago. Since Friday, light rainfall and wind have helped reduce pollution slightly.
According to Gyanraj Subedi, Director General of the Department of Environment, the rise in pollution has been driven by prolonged dry conditions, lack of rainfall, burning of agricultural residues, and forest fires.
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