When you look at that graph, and, indeed, today's, you'll notice that the peak moments coincide with low wind speeds. Winds are very strong in spring afternoons and I believe they blow a lot of the pollution away. When the wind dies down at night, the air fills up with pollution again. From diesel trucks, certainly, but construction, too. And agricultural stalk burning.
What puzzles me is that the humidity, which reaches 100% at night, doesn't precipitate the pollution. I thought it should?
Anyway, high AQI rates are common for Kunming in spring. But that doesn't mean it isn't utterly disgusting. We should all be aware that we're slowly being killed here.
US-owned Sanford Health opens pediatric facility in Kunming
发布者Number of Belgians in Kunming increases by 150%.
Spontaneous pole dance breaks out on Kunming subway
发布者speechless.
Chenggong holds no-car day with eye on future
发布者They used to take place all the time, but now apparently only Chenggong is deemed worthy of having one.
This is certainly we're allowed to jeer at.
Paleontologists unearth 520 million year old brain in Yunnan
发布者the artist's rendering proves that the past is the future!
Kunming launches first sightseeing bus
发布者Just in time for monsoon season.