Comparison test of the reference method among PM10 automated monitors for construction fugitive dust in autumn
SONG Bo1,2,, LIU Liyang1,2, HUANG Yuhu2,,, WANG Linkai3, QIN Jianping2 1.College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China 2.National Engineering Research Center of Urban Environmental Pollution Control, Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China 3.College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
Abstract:Construction fugitive dust is a kind of important pollution source. The applicability detection is the premise of using PM10 automated monitors for construction fugitive dust. In this study, Specifications and Test Procedures for Ambient Air Quality Continuous Automated Monitoring System for PM10 and PM2.5 (HJ 653-2013) and Rule 403 Fugitive Dust of US California were taken for reference, 9 types of light-scattering PM10 automated monitors and 4 types of β-ray PM10 automated monitors for construction fugitive dust were selected to conduct the comparison test of the reference method in a construction site in autumn. The results showed that three monitors didn’t meet the requirements for parallelism of HJ 653-2013 (P≤10%). After P value was adjusted to no higher than 15%, 92% of the monitors could meet the new requirement except one type of light-scattering monitor. The slope (k), intercept (b) and coefficient of determination (R2) of linear regression equations between the reference method and β-ray monitors except for a monitor without meeting the requirement were better than light-scattering monitors, but all of them didn’t meet the requirements of HJ 653-2013 (0.85≤k≤1.15, ?10 μg·m?3≤b≤10 μg·m?3, R2≥0.90). After slightly relaxing the requirements of HJ 653-2013 as follows: P≤15%, 0.80≤k≤1.20, ?20 μg·m?3≤b≤20 μg·m?3, R2≥0.72, 1 types of light-scattering monitors and 3 types of β-ray monitors could meet the new requirements. It is feasible to use light-scattering monitors to support emission standard of construction fugitive dust. In summary, it is recommended to carry out comparison test of the reference method among PM10 automated monitors for construction fugitive dust in other seasons, this can provide reference for construction fugitive dust pollution monitoring and prevention. Key words:construction fugitive dust/ PM10 automated monitor/ light-scattering/ β-ray/ reference method/ comparison test.
图1施工扬尘PM10监测仪参比方法比对测试场地 Figure1.Comparison test site of the reference method of PM10 monitor for construction fugitive dust
图6自动监测仪与参比采样器的线性回归方程的斜率、截距和R2对比 Figure6.Comparison of the slope, intercept and R2 of the linear regression equation of the automated monitor and reference sampler
1.College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China 2.National Engineering Research Center of Urban Environmental Pollution Control, Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China 3.College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China Received Date: 2019-10-08 Accepted Date: 2020-03-01 Available Online: 2021-01-13 Keywords:construction fugitive dust/ PM10 automated monitor/ light-scattering/ β-ray/ reference method/ comparison test Abstract:Construction fugitive dust is a kind of important pollution source. The applicability detection is the premise of using PM10 automated monitors for construction fugitive dust. In this study, Specifications and Test Procedures for Ambient Air Quality Continuous Automated Monitoring System for PM10 and PM2.5 (HJ 653-2013) and Rule 403 Fugitive Dust of US California were taken for reference, 9 types of light-scattering PM10 automated monitors and 4 types of β-ray PM10 automated monitors for construction fugitive dust were selected to conduct the comparison test of the reference method in a construction site in autumn. The results showed that three monitors didn’t meet the requirements for parallelism of HJ 653-2013 (P≤10%). After P value was adjusted to no higher than 15%, 92% of the monitors could meet the new requirement except one type of light-scattering monitor. The slope (k), intercept (b) and coefficient of determination (R2) of linear regression equations between the reference method and β-ray monitors except for a monitor without meeting the requirement were better than light-scattering monitors, but all of them didn’t meet the requirements of HJ 653-2013 (0.85≤k≤1.15, ?10 μg·m?3≤b≤10 μg·m?3, R2≥0.90). After slightly relaxing the requirements of HJ 653-2013 as follows: P≤15%, 0.80≤k≤1.20, ?20 μg·m?3≤b≤20 μg·m?3, R2≥0.72, 1 types of light-scattering monitors and 3 types of β-ray monitors could meet the new requirements. It is feasible to use light-scattering monitors to support emission standard of construction fugitive dust. In summary, it is recommended to carry out comparison test of the reference method among PM10 automated monitors for construction fugitive dust in other seasons, this can provide reference for construction fugitive dust pollution monitoring and prevention.
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