To the central content area

The maintenance project of internet of things for air quality monitoring in Chiayi City during 2020

Absrtact
There are four main priorities in this issue: (一) patrol and maintenance of existing 250 stations, (二) construction of 5 meteorological monitors, (三) analysis of hot zone data, and (四) public version of environmental information query platform. (一)patrol and maintenance of existing 250 stations, 1.The comparison results of the first quarter and March did not pass a total of 7 sets, which are 3 sets with missing data and 4 sets with BIAS(%)>50%. Those who have not passed the standard must perform another inspection and comparison or directly replace with new products, including replacement of 2 equipment, and the remaining 5 units have passed the standard after the supplementary inspection and comparison. 2.In the second quarter, there were 2 units that failed to pass the inspection. They were 1 unit with missing comparison data and 1 unit with BIAS(%)>30%. Subsequent testing has been completed.. 3.In the third quarter, the inspection operation started on August 19. As of the end of September, a total of 260 units have been implemented. There are 5 units with missing comparison data, and 5 units are due to the atmospheric concentration lower than the standard (≤15μg/ m3) Supplementary test needs to be carried out, which has been carried out in October, and the data is to be analyzed . 4.The overall data upload complete rate of 250 stations averaged 98.6%, the average complete rate of 200 stations in 107 was 98.6%, and the average complete rate of 50 in 2010 was 98.7%, which complies with contract specifications. "The complete rate of valid sensor data is 90%. Above" goal. (二)construction of 5 meteorological monitors, 1.Five new meteorological monitors were completed in March to assist in identifying the direction of pollution and diffusion through wind direction, wind speed and other data, further strengthening the analysis of pollution hotspots, and improving the efficiency of air pollution control. (三)analysis of hot zone data 1.According to the Chiayi City area, the sensors are divided into 12 groups, and the monthly average of PM2.5 from January to November of 109 is calculated. Overall, the difference in the concentration of pollutants in each region is not big, with the highest 19.9μg/m3 and the lowest 17.6μg /m3 is only 2.3μg/m3, and the highest ranking average is in station traffic and community group areas. 2.According to the distribution of potential hot areas and hot spots of VOCs in this issue, after long-term follow-up observation of Zhulu -1, it was found that VOCs have a gradual upward trend. The odor is scattered, and the environmental protection bureau and the Industrial Technology Research Institute will provide suggestions to the counseling industry for improvement, and will continue to observe the trend of concentration changes in potential hot spots and hot spots. 3.According to the monthly average of VOCs from January to November of 109, the concentration of sensed ethnic groups in the east market and the city center is relatively high, mainly distributed around the east market. It is presumed to be mobile source pollution caused by public activities and long-term Tracking the contribution of barbecue shops 4.7 cases of fines have been completed, the total amount of fines is 512,000 yuan, and the target of 3 check points of the plan has been reached. (四)public version of environmental information query platform 1.In order to enhance the friendliness of platform functions and operations, please refer to Section 3.4 of Chapter III through discussions with the Environmental Protection Agency on platform amendments and subsequent adjustment plans. 2.In order to enhance the friendliness of the platform operation, through discussions with the Environmental Protection Agency, rolling updates and adjustments to platform functions have been completed. Five optimization projects have been completed. 3.Seven air quality promotion meetings or promotion activities have been completed.
Keyword
PM2.5, VOCs, IoT
Open
top