I'm not sure if this is humidity, dust or smoke, or perhaps some combination of all three. I could not find any reference to this phenomena in any of the newspapers. I could not find any useful information (visibility, humidity) on NHSM's website.
The National Environment Commission website reports the daily air pollution PM10 index. In Thimphu it is currently at around 80 µg/m3, which is below the national standard of 100 µg/m3. This hints that pollution is not extraordinarily high. Also, the air is not brownish. (By the way, NEC's standards are quite permissive when compared to EU and US standards, but we'll leave that for another post.).
So what's causing this extraordinary haze? If you happen to have any information, do let us know.
P.S.: Thimphu's unique topography - a high-altitude city surrounded by mountains - together with the growing population and explosion in the number of cars, might spell a future air-pollution crisis, especially if the city is prone to thermal inversion.
|Late morning in Thimphu|