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

Beijing-Tianjin-Hebei restricts construction coatings to improve air

Xinhua | Updated: 2017-04-14 13:13
BEIJING -?To curb air pollution, Hebei Province, Beijing and Tianjin will enforce a unified standard to reduce the use of coatings and adhesives in construction.

According to the standard issued Thursday, the amount of volatile organic compounds (VOCs) must not exceed set levels in manufacturing, storage and in use of construction coatings and adhesives. The measure is estimated to reduce VOCs in the air by 20 percent.

The Beijing-Tianjin-Hebei region sits at the heart of the North China Plain where air pollution, particularly winter smog, often occurs as a result of the high concentration of industrial and vehicle emissions, static air circulation and the burning of coal.

"VOCs are a key component of the ozone and PM2.5 -- fine particulate matter with diameter smaller than 2.5 micrometers," said Yu Jianhua, chief engineer of the Beijing Municipal Environmental Protection Bureau.

He said that rapid urbanization had led construction coating and adhesives to constitute a major part of VOCs in cities. In 2015, 5.16 million tonnes of construction coating was consumed nationwide, an eight-fold increase since 2000.

Yu said Beijing had its rules on the use of coatings and adhesives but the latest standard upgraded restrictions and widened the jurisdiction to cover Tianjin and Hebei where rules had been more relaxed.

The standard is the first jointly-issued rule for the three areas to fight air pollution.

By 2017 the region must cut PM2.5 density by 25 percent from 2012 levels, according to a government action plan issued in September 2013.

Beijing has been struggling to reach its target of an average PM2.5 density of 60 micrograms per cubic meter. In the first three months, its PM2.5 density averaged 84 micrograms per cubic meter.

However, Beijing's air quality is already ranked the best among 28 cities in the three areas.
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: 亚洲久久视频 | 三级五月天| 亚色综合 | 日韩综合网站 | 一级片在线免费观看 | 亚洲一区天堂 | aaaaaaa毛片| 麻豆精品国产免费 | 免费黄色国产 | 在线欧美亚洲 | 欧美在线观看网站 | 久久在线精品视频 | 羞羞答答一区 | 日本天堂中文字幕 | 国产原创| 国产精品亚洲天堂 | 91久久婷婷 | 97超碰中文字幕 | 国产精品国产三级国产在线观看 | 黄色一级片一级片 | 亚洲精品福利在线观看 | 浴室偷拍美女洗澡456在线 | 久久综合九九 | 日韩午夜激情 | 四虎免费看黄 | 在线看毛片网站 | 成人午夜av | 一级黄色大毛片 | 99热香蕉| 久久综合免费视频 | 黄网在线免费看 | 中文字幕成人 | 国产精品v欧美精品v日韩 | 久久久久高清 | 日韩一区二区精品视频 | av激情网| 久久久久久久福利 | 在线观看成人小视频 | 国产成年人视频 | 日韩在线影院 | 金8天国av |