Particulate matter formation from photochemical degradation of organophosphorus pesticides

3rd Iberian Meeting on Aerosol Science and Technology

Borrás, E.^1 ; Ródenas, M.^1 ; Vera, T.^1 ; Muñoz, A.^1

Fundación CEAM, Parque Tecnológico, Paterna, Valencia, Spain^1

关键词: Atmospheric degradation;    Atmospheric particulate matter;    Degradation products;    Global climate changes;    Organophos-phorus pesticides;    Particulate matter formations;    Photochemical degradation;    Secondary particulate matters;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/28/1/012003/pdf
DOI  :  10.1088/1755-1315/28/1/012003

来源: IOP

【 摘 要 】

Several experiments were performed in the European Photo-reactor - EUPHORE - for studying aerosol formation from organophosphorus pesticides such as diazinon, chlorpyrifos, chlorpyrifos-methyl and pirimiphos-methyl. The mass concentration yields obtained (Y) were in the range 5 - 44% for the photo-oxidation reactions in the presence and the absence of NOx. These results confirm the importance of studying pesticides as significant precursors of atmospheric particulate matter due to the serious risks associated to them. The studies based on the use of EUPHORE photoreactor provide useful data about atmospheric degradation processes of organophosphorus pesticides to the atmosphere. Knowledge of the specific degradation products, including the formation of secondary particulate matter, could complete the assessment of their potential impact, since the formation of those degradation products plays a significant role in the atmospheric chemistry, global climate change, radiative force, and are related to health effects.