Factories forced to halt production as PM2.5 reaches 250
Authorities in Beijing announced on Sunday that the city's air pollution alert has been upgraded from yellow to orange - the highest smog alert of the year - and industrial plants are required to reduce or shut down production.
According to the Beijing Municipal Environmental Monitoring Center Customized Seattle Seahawks Jersey , Sunday's daily pollution reading showed that the air was "very hazardously polluted" and that the concentration of airborne particles smaller than 2.5 microns in diameter - PM2.5 - reached 250 micrograms per cubic meter in six districts of Beijing.
High humidity, strong thermal inversion and low wind speed are among the disadvantageous meteorological conditions preventing pollutants' dispersion, the Beijing Municipal Environmental Protection Bureau explained on Sunday.
Hazardous air pollution conditions will last until Tuesday, when a cold front is due to arrive Cheap Seattle Seahawks Jerseys , according to the Beijing's environmental protection bureau.
Beijing issued a yellow alert on Friday, requiring industrial plants to reduce or shut down production and forcing building and demolition at construction sites to stop.
Under an orange alert like that issued Sunday, apart from the suspension of production at industrial plants, construction sites are also required to halt the transportation of materials and waste Terence Garvin Limited Jersey , and heavy-duty trucks are banned from the roads.
According to the National Meteorological Center (NMC), several regions in North China - including the municipalities of Beijing and Tianjin as well as Hebei, Henan, Shandong Tre Madden Limited Jersey , Shanxi and Shaanxi provinces - have been plagued by smog from Sunday to Monday.
The NMC announced the dispatch of inspection teams to several cities to reinforce violations checks, such as those involving discharge from coal-fired and industrial plants, outdoor barbecues and the burning of stubble fields.
The inspection groups will also supervise local governments' initiation of heavy pollution emergency plans and will inspect their efforts to battle air pollution, including the removal of heavily-polluting vehicles and