日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Environment

New cloak of smog to descend on Hebei province

By Zhang Yu in Shijiazhuang | China Daily | Updated: 2017-12-01 08:22

North China's Hebei province issued an orange alert for air quality on Thursday because of severe air pollution that will envelop the province and neighboring regions from Friday to Sunday, according to the Hebei Environmental Protection Bureau.

It is the second time this year that Hebei, typically shrouded by heavy smog in winter, has issued a regional alert. The first orange alert - the second-highest level for air pollution - was issued in early November.

"Because of a new round of disadvantageous weather, including low atmospheric pressure, slow winds and high humidity, it is hard for airborne pollutants to disperse," said Wang Xiaoli, director of Hebei province's Environmental Emergency and Heavy Pollution Weather Forewarning Center.

Though weather conditions will keep severe smog around for three days, pollutants discharged into the air remain the primary source, he said.

Under an orange alert, emergency responses to the pollution were started on Thursday in 10 cities in the province.

More than 6,000 polluting companies will take turns suspending operations and another 8,000 firms will temporarily reduce emissions to ensure a reduction of at least 20 percent during the period.

Cities in neighboring Henan province, such an Anyang, will also suffer from severe air pollution, while the air in Beijing and Tianjin will be slightly affected, Wang said.

Air quality is expected to improve starting on Sunday night, with the influence of a cold front that will disperse pollutants.

Northern China usually experiences worsening air quality in late autumn and winter partly due to less wind and increased emissions from heating sources, especially coal burning.

According to the provincial environmental protection bureau, 30 percent more pollutants are discharged in Hebei during the heating season.

To cope with that, Hebei is replacing coal for family heating with electricity or gas, shutting down illegal polluting companies and limiting production in heavy industries such as iron, steel and coking.

The province is also increasing its investment in technology for environmental monitoring to better forecast smog and control pollutants.

"We are considering introducing high-tech instruments that use a LIDAR - or light detection and ranging system - to precisely monitor particulate matter in the air," said Huang Yunlong, who works at the bureau's development service center.

According to Huang, the instruments are carried in a vehicle and can monitor a certain area's pollutants in three-dimensional space, unlike traditional stationary monitors.

The province's average density of PM 2.5 - particulate matter with a diameter less than 2.5 microns - fell by 25.3 percent year-on-year in the last two months to 62 micrograms per cubic meter, according to the monitoring center.

zhangyu1@chinadaily.com.cn

Editor's picks
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 视频国产精品 | 在线观看中文字幕 | 超碰97人人爱 | 97久草 | 国产又粗又猛又爽又黄的视频四季 | 手机免费看毛片 | 色猫咪av | 日韩av一二三 | 欧美亚洲二区 | 久久视频国产 | 久久午夜鲁丝 | 91超碰在线免费观看 | 欧美精品一二三 | 亚洲欧洲久久 | 日本久久99 | 亚洲综合在线视频 | 日韩精品国产一区 | 国产精品国产自产拍高清av | 男女精品视频 | 1级黄色大片儿 | 亚洲综合一二三 | 国产欧美大片 | 亚洲三级国产 | 国产色中色 | 亚洲第一区视频 | 99久久久国产精品 | 波多野结衣亚洲一区二区 | 国产亚洲欧美一区 | 人人澡人人射 | 羞羞网站免费 | 黄色av网址在线观看 | 国产日韩av在线播放 | 久久久性 | 色噜噜日韩精品欧美一区二区 | 国产一级免费视频 | 国产精品www | xxxxxx在线观看 | 三级国产视频 | 中文字幕在线视频一区 | 国产成人在线网站 | 日韩三级中文字幕 |