NASA Releases Orbital Photos of Beijing's Air Pollution

skade88 writes "This story should remind us all that air pollution controls are not just about addressing global warming. They also help us have cleaner air and fewer health problems resulting from smog and haze. Starting earlier this month, Beijing, China started having worse than normal air pollution issues. On January 14, 2013 the U.S. embassy's air pollution sensors in Beijing found the density of the most dangerous small air particles, PM 2.5, at 291 micrograms per cubic meter of air. The World Health Organization's guidelines for air pollution state that PM 2.5 above 25 micrograms per cubic meter of air is dangerous to a person's health. To put the problem into perspective, NASA has released two orbital photos of Beijing showing before-and-during images of the air pollution. The photo from January 4 shows parts of Beijing still visible from space. The photo from January 14 shows nothing but a huge, thick cloud of haze with no buildings visible."

Comments

For those who don't know

[cvnautilus]

PM 2.5 stands for particulate matter smaller than 2.5 micrometers.

According to the Wikipedia particles of this size cause a broad array of terrible consequences in the body.

Re:that's what the job killing lines get you stuff

[DerekLyons]

Nice try, but no. Beijing isn't that big of a manufacturing center (relatively speaking) - most of the pollution comes from IC engines and (especially important this time of year) the decentralized system of coal powered hot water plants that provides most of the cities heating.