Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preventing biogenic secondary organic aerosols formation in India
https://orcid.org/0000-0002-3091-3383
Abstract Biogenic secondary organic aerosols (b-SOA, a subset of PM2.5) are generally assumed uncontrollable, as their precursors are of natural origin. The underlying science that anthropogenic pollutants aid in transforming biogenic volatile organic compounds (b-VOC) into the b-SOA opens the avenue to prevent b-SOA formation through anthropogenic emission control. Sixty customised Weather Research and Forecasting-Chemistry (WRF-Chem) model simulations were undertaken for India in 2018. Five pollutants, TC(BC + OC), NOx, NMVOC, NH3 and SO2, were considered for emission reductions at three levels 25, 50 and 75%, and the resulting prevention of b-SOA formations was examined. TC and NOx emission control showed maximum potential in preventing b-SOA formation. A 10% reduction in TC emission prevented 4.5% b-SOA formation, and a similar reduction in NOx prevented 3.7% b-SOA across all seasons and regions. The residential combustion contributing 57% of TC emissions was one single important source for TC control, and for NOx, it was vehicles and coal-based power plants (emission share over 80%). Specific reductions in anthropogenic emissions have been presented seasonally and regionally to prevent b-SOA formation.
Graphical abstract Display Omitted
Highlights 60 WRF-Chem simulations for anthropogenic impact over biogenic SOA(b-SOA) formation. Total Carbon (TC(BC + OC)), NOx, NMVOC, NH3 and SO2 with 25, 50 and 75% reduction. Seasonal and regional effect of reducing anthropogenic impact on b-SOA formation. Controlling 10% TC and NOx showed the highest (4.5% and 3.7%) effect over b-SOA. Reduce TC emissions from residential sector and NOx from vehicles and power plants.
Preventing biogenic secondary organic aerosols formation in India
https://orcid.org/0000-0002-3091-3383
Abstract Biogenic secondary organic aerosols (b-SOA, a subset of PM2.5) are generally assumed uncontrollable, as their precursors are of natural origin. The underlying science that anthropogenic pollutants aid in transforming biogenic volatile organic compounds (b-VOC) into the b-SOA opens the avenue to prevent b-SOA formation through anthropogenic emission control. Sixty customised Weather Research and Forecasting-Chemistry (WRF-Chem) model simulations were undertaken for India in 2018. Five pollutants, TC(BC + OC), NOx, NMVOC, NH3 and SO2, were considered for emission reductions at three levels 25, 50 and 75%, and the resulting prevention of b-SOA formations was examined. TC and NOx emission control showed maximum potential in preventing b-SOA formation. A 10% reduction in TC emission prevented 4.5% b-SOA formation, and a similar reduction in NOx prevented 3.7% b-SOA across all seasons and regions. The residential combustion contributing 57% of TC emissions was one single important source for TC control, and for NOx, it was vehicles and coal-based power plants (emission share over 80%). Specific reductions in anthropogenic emissions have been presented seasonally and regionally to prevent b-SOA formation.
Graphical abstract Display Omitted
Highlights 60 WRF-Chem simulations for anthropogenic impact over biogenic SOA(b-SOA) formation. Total Carbon (TC(BC + OC)), NOx, NMVOC, NH3 and SO2 with 25, 50 and 75% reduction. Seasonal and regional effect of reducing anthropogenic impact on b-SOA formation. Controlling 10% TC and NOx showed the highest (4.5% and 3.7%) effect over b-SOA. Reduce TC emissions from residential sector and NOx from vehicles and power plants.
Preventing biogenic secondary organic aerosols formation in India
https://orcid.org/0000-0002-3091-3383
Abstract Biogenic secondary organic aerosols (b-SOA, a subset of PM2.5) are generally assumed uncontrollable, as their precursors are of natural origin. The underlying science that anthropogenic pollutants aid in transforming biogenic volatile organic compounds (b-VOC) into the b-SOA opens the avenue to prevent b-SOA formation through anthropogenic emission control. Sixty customised Weather Research and Forecasting-Chemistry (WRF-Chem) model simulations were undertaken for India in 2018. Five pollutants, TC(BC + OC), NOx, NMVOC, NH3 and SO2, were considered for emission reductions at three levels 25, 50 and 75%, and the resulting prevention of b-SOA formations was examined. TC and NOx emission control showed maximum potential in preventing b-SOA formation. A 10% reduction in TC emission prevented 4.5% b-SOA formation, and a similar reduction in NOx prevented 3.7% b-SOA across all seasons and regions. The residential combustion contributing 57% of TC emissions was one single important source for TC control, and for NOx, it was vehicles and coal-based power plants (emission share over 80%). Specific reductions in anthropogenic emissions have been presented seasonally and regionally to prevent b-SOA formation.
Graphical abstract Display Omitted
Highlights 60 WRF-Chem simulations for anthropogenic impact over biogenic SOA(b-SOA) formation. Total Carbon (TC(BC + OC)), NOx, NMVOC, NH3 and SO2 with 25, 50 and 75% reduction. Seasonal and regional effect of reducing anthropogenic impact on b-SOA formation. Controlling 10% TC and NOx showed the highest (4.5% and 3.7%) effect over b-SOA. Reduce TC emissions from residential sector and NOx from vehicles and power plants.
Preventing biogenic secondary organic aerosols formation in India
Azmi, Sahir (Autor:in) / Sharma, Mukesh (Autor:in)
Atmospheric Environment ; 290
20.08.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch