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.
Wild mushroom season arrives with a friendly warning
Posted byThe World Agroforestry Centre's East and Central Asia office has published a book "Mushrooms for Trees and People", subtitled "A field guide to useful mushrooms of the Mekong region". It describes the use and edibility of many mushroom species in Yunnan and can be downloaded for free through us (humidtropics.cgiar.org/[...]
A book review was done by Gokunming in 2014:
www.gokunming.com/[...]
National park system in the works for China
Posted by巫家壩 is much more likely to be translated as the basin on the land of the Wu family, cfr. 石家莊 (not the house of a family of stones),張家口 (not a stretched house estuary).
That said, I recently walked the old silk road from the Nu river (Baihualing 百花嶺) to Tengchong. This is also a protected national park and the trail is well-marked in English and Chinese, and has many litter bins along the way. There's room for improvement, but it beats anything I've walked so far.
Report: Chinese cities falling far short of air pollution standards
Posted byBeware that the author is probably using the Chinese AQI. It being an index, it is a relatively arbitrary figure compared to the absolute value of PM2.5 particles in microgrammes per cubic metre!
The American AQI standard would rate the concentrations with a much higher index score (also implying much higher health risks)!
Province nervously monitoring forest fire season
Posted bythey also release a chemical in the soil, killing competing plants. In combination with their water-sucking properties, this leads to even more aridity.
What does one do when one spots a forest fire? I saw several starting on my road trip near Lijiang in February, but saw no police station to report it to. Whom do I call?
Urban managers throw block party, no one attends
Posted bytits! You had me until I read the comments