I just found this really interesting website that has great info about China air quality. I'm sure none of you are as interested in this as I am, but there is a great 6 minute video with fabulous photography that gives the best treatment I've come across. There is also a daily measure of pollutants.
And I kept wondering--how do they measure the pollution? Question answered:
Air pollution index (API), published by China’s Ministry of Environmental Protection, is derived from measurements of five pollutants: Sulfur Dioxide, Nitrogen Dioxide, PM10, Carbon Monoxide and Ozone. The average concentration for each pollutant is calculated daily and the concentration of the pollutant with the highest API (0-500) will become that day’s major pollutant, recorded as that day’s API figure. In Beijing, PM10–particulate matter 10 microns or smaller–is the major pollutant most days.
The only part I don't know if I buy is the part that claims 246 "blue sky days" recorded in 2007!
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2 comments:
I think 150 days were before you moved there.
Ha!
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