12月18日，一名工作人员在郑州市中原西路市环保监测中心站的PM2.5监测点内监测实时数据。从当日零时开始，郑州市环保局向社会发布郑州PM2.5监测数据，市民可以登录郑州市环保局官方网站的空气质量监测发布平台，查询包括PM2.5在内的6项空气指标的即时监测数据，监测信息来自全市九个空气质量监测点，数据每小时更新一次。新华社记者 李博 摄  12 months and days,A staff in zhengzhou zhongyuan road, the city's environmental protection monitoring center of PM2.5 monitoring stations monitoring in real-time data.From that day start equal to zero,Zhengzhou city environmental protection bureau to the public by zhengzhou PM2.5 monitoring data,Citizens may have logged in zhengzhou city environmental protection bureau official website of air quality monitoring delivery platform,Inquires, including PM2.5 6 air index of the real-time monitoring data,Monitoring information comes from the whole city nine air quality monitoring stations,Data is updated on a per hour.Xinhua news agency reporter li bo &lei perturbation 

    12月18日，一名工作人员在网上查询郑州市空气质量监测发布平台发布的即时监测信息。新华社记者 李博 摄 12 months and days,A staff inquire on the net, zhengzhou city air quality monitoring platform release issued by the real-time monitoring information.Xinhua news agency reporter li bo &lei perturbation 

    12月18日，郑州市环保局的工作人员正在调整PM2.5监测设备。新华社记者 李博 摄 12 months and days,Zhengzhou city environmental protection bureau staff are adjusting PM2.5 monitoring equipment.Xinhua news agency reporter li bo &lei perturbation