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.
Mapping Yunnan's surprisingly hectic airspace
发布者Very interesting data crunch there Matt.
What I cannot understand, is why there are no longer any connections to Hanoi since Vietnam Airlines cancelled the route two years ago. It's probably the closest foreign capital city to Kunming, and the overland trip takes at least 18 hours, so a flight route would make sense. Also, Vietnam is by some standards one of the world's fastest growing economies so I really don't get it. Are relations that cool?
As for the next international flight to and from Kunming, my money wouldn't be on Amsterdam, as rivalling Chengdu already has a direct route there. Even though the flower business is blooming in Yunnan, that hasn't compelled KLM to add a Kunming route.
Given the sheer number of Belgians in Yunnan, the new destination must of course be Brussels.
Genetically modified monkeys an MIT 'Breakthrough Technology'
发布者GIVE THEM LASERS
Forest fire menacing outskirts of Kunming
发布者I believe eucalyptus also kills whatever is attempting to grow underneath it, making our Yunnan plateau even more arid and likely to catch fire.
Police shutter black market Kunming noodle-maker
发布者Breaking: Kunming Noodles Now Delicious.
Yunnan increases land area nearly ten percent
发布者Buzz Killington brought his brothers