The traditional monitoring method of particulate matter from pollution source can guarantee the quality,but it takes too long.However,the rapid detection method is mainly indirect measurement,and the corresponding relationship between the measurement signal and the mass concentration can not be checked on the spot.Based on the portable oscillation balance method,this study solved the problem that the equipment performance could not be checked on site by directly verifying the standard membrane weight,and there was no need to re-establish the corresponding relationship between the measurement signal and the mass concentration.The results show that under the conditions of horizontal vibration of 56.2～94.4 dB and vertical vibration of 58.4～96.5 dB,the relative errors of the balance and the standard filter value before and after the test are not more than±3.5%,and the standard deviation is less than 0.5%.The study of this method provides an effective quality assurance measure for the field rapid monitoring of particulate matter in the fixed polluted exhaust gas.
关键词
固定染污源/颗粒物/现场监测/性能指标/校验方法研究
Key words
Fixed contamination source/Particulate matter/Field monitoring/Performance indicators/Checking method study
维普
万方数据