环境保护部环境监测司司长罗毅介绍说，3月份，74个城市达标天数比例平均为71.1%，轻度污染天数比例为21.1%，中度污染为5.5%，重度污染为1.8%，严重污染为0.5%。超标天数中以PM2.5为首要污染物的天数最多，其次是PM10。
4月15日，北京市气象台16时20分发布沙尘蓝色预警信号，受上游强沙尘暴影响，北京市有较严重的沙尘天气，能见度明显下降。环境保护部近日发布了2015年3月份及第一季度京津冀、长三角、珠三角区域及直辖市、省会城市和计划单列市等74个城市空气质量状况。
环境保护部环境监测司司长罗毅介绍说，3月份，74个城市达标天数比例平均为71.1%，轻度污染天数比例为21.1%，中度污染为5.5%，重度污染为1.8%，严重污染为0.5%。超标天数中以PM2.5为首要污染物的天数最多，其次是PM10。
京津冀区域13个城市空气质量达标天数比例平均为36.8%，低于74个城市平均达标天数比例34.3个百分点；平均超标天数比例为63.2%，其中重度污染天数比例为6.9%，严重污染天数比例为1.2%，重度及以上污染天数比例高于74个城市5.8个百分点。与上年同期相比，京津冀区域13个城市平均达标天数比例升高1.7个百分点，空气质量略有改善但污染依然较重。与上月相比，京津冀区域13个城市平均达标天数比例降低3.1个百分点。
环境保护部环境监测司司长罗毅介绍说，3月份，74个城市达标天数比例平均为71.1%，轻度污染天数比例为21.1%，中度污染为5.5%，重度污染为1.8%，严重污染为0.5%。超标天数中以PM2.5为首要污染物的天数最多，其次是PM10。
2015-04-22 11:16:34
CEMPI
133.85
+0.08 +0.06%
CONCPI
112.35
-0.15 -0.13%
CLKPI
141.95
+0.38 +0.27%
SPPI
50.58
-0.05 -0.10%
MORPI
80.53
+0.10 +0.12%
On November 22, the 4th International New Material Industry Conference was held in Bengbu, Anhui Province, jointly sponsored by the People's Government of Anhui Province, the International Glass Association, China Building Material Group Co., Ltd. and China Baowu Iron and Steel Group Co., Ltd. The theme of this conference is "New Technology". New materials New Future. Li Zhong, Vice Governor of Anhui Province, delivered a speech and announced the opening ceremony. Zhou Yuxian, Secretary of the Party Committee and Chairman of China Building Material Group, and Alicia Duran, Chairman of the 26th International Glass Association and Chairman of the Organizing Committee of the United Nations International Year of Glass, attended the conference and delivered speeches. Seventeen academicians, including Gan Yong and Peng Shou, as well as relevant leaders and guests from provinces, cities, universities and enterprises, attended the meeting.
