北京明年正式发布PM2.5数据

　　The city's environment authority has set up 35 PM2.5 monitoring stations across the city and will run a three-month test. "We plan to officially release real time data of PM2.5 concentration starting from January 1, next year and analyze the data based on international standards," a spokesperson at the Beijing Municipal Environmental Protection Bureau said yesterday. Like the air quality index, the PM2.5 concentration will be categorized in six levels for easy accessibility to the general public: excellent, good, slightly polluted, moderately polluted, heavily polluted and severely polluted, she said. The acceptable concentration level is set at 75 milligrams, which "meets the lower limit of the international standard," she added。

　　Real time data will be released on Weibo, or microblog, the Chinese equivalent of twitter. They are also likely to be sent to mobile phones。

　　The PM2.5 concentration is an important indicator of air quality. In Chinese cities, the evaluation of air quality is usually based on the concentration of 10-micrometer particulate matter (PM10). In Beijing, the American Embassy has been releasing its evaluation of the city's air quality based on PM2.5 for an extended period of time. This data and Beijing government's data usually showed large disparities, causing outcry and prompting the city authority to adopt the new standard。

　　经过3个月的试运行，PM2.5实时发布的数据从明年起将正式公布监测“评价”，即像空气指数一样把数据分为优良等六档。此外，市民或将通过手机精准查询到各监测站点的具体数值，作为出行参考。昨天，部分市人大[微博]代表对本市2012年政府拟办实事项目进展情况进行现场视察。

　　明年正式发布数据

　　对于位列实事之首的PM2.5防治，市环保局负责人向代表介绍说，35个PM2.5监测子站已于本月初完成设备安装调试，开始向市民发布PM2.5的监测数据。

　　“计划从明年1月1日起，正式实时发布PM2.5数据，并按国际标准评价数据。”市环境保护监测中心相关负责人解释说，目前公布的数据是浓度水平，而不具备专业知识的市民更需要了解的是“评价结果”，因此今后PM2.5的播报将像空气质量指数一样，分为优、良好、轻度污染、中度污染、重度污染和严重污染六个档位，供市民参考。她强调，本市PM2.5浓度日标准为75毫克即达标，“这也符合国际标准的下限。”

　　手机有望实时查询

　　在尝鲜微博播报的同时，市环保局正在酝酿利用手机发布PM2.5的实时监测数据。市民有望用手机查询到遍布全市的35个站点的PM2.5最新数值，参考数据安排自己的出行计划。

　　另外，市人大代表昨天还视察了位于朝阳区农光里的老旧小区改造项目。农光里社区17号楼刚刚结束抗震加固和节能改造工程，老街坊们已搬回“新居”居住。居民程伟家里焕然一新，改造后住房面积还增加了17平方米。据朝阳区住建委介绍，今年该区可完成改造327万平方米；整个“十二五”期间计划改造1480万平方米。(记者 姜葳；来源：北京晨报)