Analysis of the Relationship Between PM_2.5 and Precipitation Enhancement and Haze Reduction by Ground Flue Gas Furnace in Urban Areas of Luzhou

Based on the air pollution monitoring data, meteorological data and the operation data of precipitation enhancement and haze reduction by ground flue gas furnace in Luzhou from 2018 to 2020, this paper studies the relationship between PM_2.5 and precipitation enhancement and haze reduction by ground flue gas furnace with statistical induction method. The results show that: Precipitation enhancement and haze reduction are effective, and PM_2.5 grades are all reduced after the operation. The diminishing grades are: 10 for grade 1, 22 for grade 2 and 11 for grade 3, and the diminishing rate of PM_2.5 is from 8.51 % to 56.02 %. The model of PM_2.5 and precipitation enhancement by ground flue gas furnace is established as F(P)=0.3998*R+0.0761*A−0.0202*S−0.0012*m+2.38, R2=0.6323, which passes the F test of a = 0.05. PM_2.5 can be successfully reduced by artificial precipitation at three stations for precipitation enhancement by ground flue gas furnace.