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Hazardous Smog Continues Choking N China

Posted by feww on February 24, 2014

ENVIRONMENTAL HOLOCAUST
‘APOCALYPTIC SMOG’
.

Life-threatening smog choking N China won’t disperse anytime soon

 The potentially deadly smog is forecast to continue for at least three more days in Beijng, Tianjin, Hebei, Shandong, Shanxi, and Shaanxi provinces in north China, said the National Meteorological Center.

Beijing was finally placed on “orange alert”  for the first time on Friday. Municipal authorities have ordered manufacturing plants in the city to suspend or reduce production, and barbecues are disallowed, Xinhua reported.

smog in N China
Photo: xinhuanet.com

Beijing AQI

PM2.5 AQI for Beijing was 411 , indicating a PM2.5 concentration of between 350.5 and 500.4  micrograms per cubic meter (µgm–³), as of posting. (Temp: 7°C ; range -1 ° to 10°. Pressure: 1025hpa).

Pollution levels below 15.4µgm–³ (AQI of up to 50) are considered as “safe.”

A formula for calculating the AQI from the concentrations of various air pollutants (PM10, PM2.5, O3, CO, SO2, NO2 …)  is posted HERE.

Related Links

For earlier posts on Beijing AQI, search blog content.

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