论文部分内容阅读
2014年7月22日中国环境监测总站发布的《2014年上半年74个城市空气质量状况报告》显示,京津冀、长三角、珠三角等重点区域及直辖市、省会城市和计划单列市共74个城市按照新标准开展监测,按照《环境空气质量标准》(GB3095-2012)评价,绘制了如下统计图,请观察统计图回答问题。2014年上半年74个城市日空气质量级别分布统计图(中国环境保护部发布)
On July 22, 2014, the “Report on the Air Quality of 74 Cities in the First Half of 2014” released by China National Envionnmentment Monitoring Center shows that the key regions, municipalities directly under the Central Government, provincial capitals and cities specifically designated in the state plan in Beijing, Tianjin, Hebei, Yangtze River Delta and Pearl River Delta According to the new standard, cities carry out monitoring according to the new standard. According to the evaluation of Ambient Air Quality Standard (GB3095-2012), the following charts are drawn up. Please observe the charts to answer the questions. 74 cities in the first half of 2014 air quality level distribution chart (released by the Chinese Ministry of Environmental Protection)