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Air quality improves in BeijingTianjinHebei region in April

时间:2017-06-21 05:12来源:彩蝶的化身 作者:白沫子 点击:

   Hebei's Handan, Shanxi's Taiyuan and Hebei's TangsBeijingTianjinHebeihan recorded the worst a大丰收心水论坛资料ir quality in April among the 74 cities nationwide moni其实Airtored by the MEP.

Cities in BeijingTianjinHebeithe Yangtze River and看看大红鹰高手论坛 the Pearl River deltas repor听说improvested worsening air quality in April.

听说大丰收心水论坛资料

Air qu想知道大红鹰高手论坛ality improved in China's 338 prefecture-level-and-对于improvesabove citi你看大赢家心水论坛资料es in April, with the average density of PM 2.5 droppinbeijingtianjinhebeig by 4.8 percent year on year.

Beijing saw 22 days w4501大赢家心水论坛ith good air qualiregionty in April, up from 18 days in the same minonth last year, a year-on-year increase of April20 percent. The average density of PM 2.5, one mainjor air pqualityollutant, fell by 22.1 percent year on year.大赢家心水论坛

The 13 cities in the inregion reporAirted good air quality 23 days on average, up 16.5 percent你知道大红鹰高手论坛 year on year, according to the daAprilta released by the Ministry of Environmental Protec对比一下airtion (MEP).

region

An average daily Air Quality Index (AQI) of under 100 inis defined as good 彩民村高手心水论坛under Chinese air quality standards.

BEIJING -quality Cities in the Beijing-Tianjin-Hebei reregiongion saw more days with "good" air quality in April, of看着老钱庄心水论坛ficial data showed Tuesday.


大丰收心水论坛资料我不知道improves
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