With the use of a Mobile Ozone Chamber Assay (MOChA), we havebeen able to assess the ozone formation potential associated with thespraying of solvent based pesticides.  We take into consideration theentire suite of VOCs present in the air (from background sources, thespraying vehicle, and the solvent itself).  Using photo-chemical modelling,we confirm the amount of ozone formed matched that expected from thediverse VOCs involved.Our results offer perspective for the relative benefit and possible trade-offs in formation changes, as regions of California (and many areas of the United States) strive to meet air quality standards.  A leading question which remains is howto include relative reactivity of different VOCs when inventorying emissionsand setting goals for their reduction.

Pesticide solvents: Ozone formation potential and regional implications

239th National Meeting (2010)

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