Aerosol emission from soil during field burning

Chen, Shaodong1; Lu, Xiaohui1,2; Ma, Xiewen1; Zhu, Xiaojing1; Gao, Qianqian1; Jiang, Xinghua1; Yang, Shanye1; Gan, Yuqi1; Wang, Xiaofei1,3

2023-09-15

10.1016/j.atmosenv.2023.119924

ATMOSPHERIC ENVIRONMENT   影响因子和分区

1352-2310

1873-2844

Soil is heated or burned during field biomass burning, including forest fires, grassland fires, and open straw burning. The characteristics of the aerosols released from the high-temperature heated soil have not been reported, according to our knowledge. In this work, three types of soil were heated at different temperatures in a tubular furnace to mimic the heating process during field burning. The particulate emission factors (EFPM), particle size distributions, organic carbon (OC) contents, and organic compositions of the emitted aerosols were investigated in detail. It was found that the particulate matter (PM) produced by soil at high temperature (>300 degrees C) cannot be neglected. The PM emission flux of the shallow surface of soil (with depth less than 5 cm) could be dozens of times higher than those from biomass burning when the surface temperature rises to 500 degrees C. The soil heated at higher temperatures emitted more particles with smaller sizes. These aerosols also contain toxic and harmful substances such as aromatics, heterocycles and nitriles. Therefore, the results strongly suggest that aerosol emissions from the heated soil during the field biomass burning cannot be ignored and could have significant environmental impacts.

Soil emission PM emission flux Field biomass burning Size distribution Organic carbonaceous components High-temperature heating

SCI ; EI

英语

通讯

National Natural Science Foundation of China["21976034","42077193","92044301","21906024"] ; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Great Bay Area[2021B1212050024]

Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences

Environmental Sciences ; Meteorology & Atmospheric Sciences

WOS:001030004500001

PERGAMON-ELSEVIER SCIENCE LTD

20232714346244

Aerosols ; Biomass ; Deforestation ; Organic carbon ; Particle size ; Particles (particulate matter) ; Particulate emissions ; Soils

Air Pollution Sources:451.1 ; Soils and Soil Mechanics:483.1 ; Organic Compounds:804.1 ; Agricultural Equipment and Methods; Vegetation and Pest Control:821 ; Mathematical Statistics:922.2 ; Materials Science:951

GEOSCIENCES

Web of Science

1.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Preve, Shanghai 200433, Peoples R China
2.Southern Univ Sci & Technol, Guangdong Prov Observat & Res Stn Coastal Atmosphe, Shenzhen 518055, Peoples R China
3.Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

Chen, Shaodong,Lu, Xiaohui,Ma, Xiewen,et al. Aerosol emission from soil during field burning[J]. ATMOSPHERIC ENVIRONMENT,2023,309.

Chen, Shaodong.,Lu, Xiaohui.,Ma, Xiewen.,Zhu, Xiaojing.,Gao, Qianqian.,...&Wang, Xiaofei.(2023).Aerosol emission from soil during field burning.ATMOSPHERIC ENVIRONMENT,309.

Chen, Shaodong,et al."Aerosol emission from soil during field burning".ATMOSPHERIC ENVIRONMENT 309(2023).