Go homepage(回首页) Upload pictures (上传图片) Write articles (发文字帖)
The author:(作者)qqpublished in(发表于) 2014/6/6 9:00:00 Expert： PM2.5 height difference， that concentrations of PM10 near high
Hebei provincial environmental monitoring center is open to the public for the first time and resolving the surveillance of below 200 metres, the capital released puzzle
PM2.5: difference of PM10 at various altitudes: the higher the near-ground concentrations
Hebei news June 3 (Hebei daily news network reporter Duan Liqian, Hebei) 6·5 world environment day approaching. Today, over more than 30 environmental protection volunteers entered the provincial environmental monitoring center, visited the emergency monitoring vehicles, PM2.5 monitoring equipment, and presenting their doubts to environmental monitoring. This is the provincial environmental monitoring center is open to the public for the first time.
Average concentration of PM2.5, PM10 dropped, but pollution a long way
"This car is what instruments? Measurement of what? "Shortly after 9 o'clock in the morning, entered the compound of the provincial environmental monitoring center, we were parked in the courtyard several environmental emergency monitoring vehicles to attract.
"In-car installation of instrument for measuring air pollution, water pollution. "Hou Dongli, Deputy Director of the Centre hub experiment introduction, higher authorities issued emergency monitoring tasks, monitors within half an hour for emergency response vehicle arrived at the scene in the first, the implementation of emergency monitoring.
"As of May 13, 11 districts and cities across the province this year average compliance for 43 days, accounting for 32.3% of the total number of days, exceeded the average number of days is 90 days, accounting for 67.7% of the total number of days. Average standard in the province rose 2 days, severe pollution reduced 3 days above. "Hub Chief Engineer Yan Yonglu introduction.
There is a set of data showed that as of May 13, 11 districts and cities across the province 117 μg/m3 PM2.5 averaged concentrations in 2013, representing a 127 μg/m3 7.8% reduction. Average concentration of PM10 was 203 mg/m, 6.5% 217 mg/m lower than last year.
"From the figures, heavily polluting per cent reduced only three days, much like environmental improvement is unlikely. Pollution control is a long process, current pollution control to the Defense phase of joint control, hope that the concerted effort to shorten treatment time. "Yan Yonglu said.
High PM10 concentrations near the ground, as the altitude increases, concentrations will reduce
Related instrument after a visit, someone asked, "environmental monitoring and statistics these data who looked up, what's the point? ”
"Environmental monitoring data are the main role is to provide technical support to environmental management. Our early, middle and late three times a day, in the form of SMS to send relevant data to all departments, they will take appropriate measures according to different pollution, for example, shutting down businesses, road spray, and so on. "Yan Yonglu describes, there is the need to let everyone know, everyone can query real time data via the website, knowing that on environmental quality, timely implementation of protective measures.
High-rise building more and more, which floor air quality better? It was asked.
"From the perspective of current situation of Shijiazhuang, because settlement of PM10 is, near-ground concentrations of the highest decreases as altitude increases, concentrations will lessen. For PM2.5, the Shijiazhuang city environmental protection Bureau at Century Park Tower has a gradient monitoring, down from the 200 meters, divided into different height measurements, showed that PM2.5 is not much contrast of different heights. But since this test do not longer, we also through long observation to make more scientific and objective conclusions. "Yan Yonglu said.
赞