Influence of the Long-Range Transport of Siberian Biomass Burnings on Air Quality in Northeast China in June 2017
Biomass burning (BB) emits a large volume of trace gases and aerosols into the atmosphere, which can significantly affect the earth’s radiative balance and climate and has negative impacts on air quality and even human health. In late June 2017, an intense BB case, dominated by forest and savanna fi...
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MDPI AG
2023-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/2/682 |
| _version_ | 1797437324719554560 |
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| author | Li Sun Lei Yang Dongdong Wang Tiening Zhang |
| author_facet | Li Sun Lei Yang Dongdong Wang Tiening Zhang |
| author_sort | Li Sun |
| collection | DOAJ |
| description | Biomass burning (BB) emits a large volume of trace gases and aerosols into the atmosphere, which can significantly affect the earth’s radiative balance and climate and has negative impacts on air quality and even human health. In late June 2017, an intense BB case, dominated by forest and savanna fires, occurred in Siberia, and it affected the air quality of Northeast China through long-range transport. Here, multisatellite remote-sensing products and ground-based PM<sub>2.5</sub> measurements are used to evaluate the influence of the Siberian smoky plume on Northeast China. The results show that the BB was intense at the early stage when the daily fire count and average fire radiative power exceeded 300 and 200 MW, respectively. The maximum daily fire count reached 1350 in Siberia, and the peak value of instantaneous fire radiative power was as high as 3091.5 MW. High concentrations of CO and aerosols were emitted into the atmosphere by the BB in Siberia. The maximum daily mean values of the CO column concentration and aerosol optical depth (AOD) increased by 3 × 10<sup>17</sup> molec·cm<sup>2</sup> and 0.5 compared with that during the initial BB stage. In addition, the BB released a large number of absorptive aerosols into the atmosphere, and the UV aerosol index (UVAI) increased by five times at the peak of the event in Siberia. Under the appropriate synoptic conditions and, combined with pyroconvection, the smoky plume was lifted into the upper air and transported to Northeast China, affecting the air quality of Northeast China. The daily mean values of CO concentration, AOD, and UVAI in Northeast China increased by 6 × 10<sup>17</sup> molec·cm<sup>2</sup>, 0.5, and 1.4, respectively, after being affected. Moreover, the concentration of the surface PM<sub>2.5</sub> in Northeast China approximately doubled after being affected by the plume. The results of this study indicate that the air quality of Northeast China can be significantly affected by Siberian BBs under favorable conditions. |
| first_indexed | 2024-03-09T11:18:33Z |
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| language | English |
| last_indexed | 2024-03-09T11:18:33Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-bc7a15cb063e4e5c934cd4967ca4079e2023-12-01T00:25:46ZengMDPI AGSensors1424-82202023-01-0123268210.3390/s23020682Influence of the Long-Range Transport of Siberian Biomass Burnings on Air Quality in Northeast China in June 2017Li Sun0Lei Yang1Dongdong Wang2Tiening Zhang3Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110166, ChinaLiaoning Meteorological Disaster Monitoring and Early Warning Centre, Shenyang 110166, ChinaInstitute of Atmospheric Environment, China Meteorological Administration, Shenyang 110166, ChinaLiaoning Weather Modification Office, Shenyang 110166, ChinaBiomass burning (BB) emits a large volume of trace gases and aerosols into the atmosphere, which can significantly affect the earth’s radiative balance and climate and has negative impacts on air quality and even human health. In late June 2017, an intense BB case, dominated by forest and savanna fires, occurred in Siberia, and it affected the air quality of Northeast China through long-range transport. Here, multisatellite remote-sensing products and ground-based PM<sub>2.5</sub> measurements are used to evaluate the influence of the Siberian smoky plume on Northeast China. The results show that the BB was intense at the early stage when the daily fire count and average fire radiative power exceeded 300 and 200 MW, respectively. The maximum daily fire count reached 1350 in Siberia, and the peak value of instantaneous fire radiative power was as high as 3091.5 MW. High concentrations of CO and aerosols were emitted into the atmosphere by the BB in Siberia. The maximum daily mean values of the CO column concentration and aerosol optical depth (AOD) increased by 3 × 10<sup>17</sup> molec·cm<sup>2</sup> and 0.5 compared with that during the initial BB stage. In addition, the BB released a large number of absorptive aerosols into the atmosphere, and the UV aerosol index (UVAI) increased by five times at the peak of the event in Siberia. Under the appropriate synoptic conditions and, combined with pyroconvection, the smoky plume was lifted into the upper air and transported to Northeast China, affecting the air quality of Northeast China. The daily mean values of CO concentration, AOD, and UVAI in Northeast China increased by 6 × 10<sup>17</sup> molec·cm<sup>2</sup>, 0.5, and 1.4, respectively, after being affected. Moreover, the concentration of the surface PM<sub>2.5</sub> in Northeast China approximately doubled after being affected by the plume. The results of this study indicate that the air quality of Northeast China can be significantly affected by Siberian BBs under favorable conditions.https://www.mdpi.com/1424-8220/23/2/682biomass burninglong-range transportair qualitysatelliteremote sensing |
| spellingShingle | Li Sun Lei Yang Dongdong Wang Tiening Zhang Influence of the Long-Range Transport of Siberian Biomass Burnings on Air Quality in Northeast China in June 2017 Sensors biomass burning long-range transport air quality satellite remote sensing |
| title | Influence of the Long-Range Transport of Siberian Biomass Burnings on Air Quality in Northeast China in June 2017 |
| title_full | Influence of the Long-Range Transport of Siberian Biomass Burnings on Air Quality in Northeast China in June 2017 |
| title_fullStr | Influence of the Long-Range Transport of Siberian Biomass Burnings on Air Quality in Northeast China in June 2017 |
| title_full_unstemmed | Influence of the Long-Range Transport of Siberian Biomass Burnings on Air Quality in Northeast China in June 2017 |
| title_short | Influence of the Long-Range Transport of Siberian Biomass Burnings on Air Quality in Northeast China in June 2017 |
| title_sort | influence of the long range transport of siberian biomass burnings on air quality in northeast china in june 2017 |
| topic | biomass burning long-range transport air quality satellite remote sensing |
| url | https://www.mdpi.com/1424-8220/23/2/682 |
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