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California Notice 2012-06: Final Decision Concerning Reevaluation of Pesticide Products
(July 2012)

On February 16, 2005, California’s Department of Pesticide Regulation (DPR) commenced reevaluation of certain liquid formulation agricultural and commercial structural-use pesticide products for which DPR did not have thermogravimetric analysis (TGA) data. A list of products included in this reevaluation is available on DPR’s website at http://www.cdpr.ca.gov/docs/emon/vocs/vocproj/voc_reg_issues.htm.

This reevaluation is based on concern over release of volatile organic compounds (VOC’s) into the atmosphere from pesticide products that can react in the presence of sunlight to create ground-level ozone. In relation, the U.S. Clean Air Act (CAA) requires states to submit state implementation plans (SIPs) for enforcing national ambient air quality standards (NAAQS) for air pollutants, including ozone, in each air quality control region of California. This reevaluation requires the identified registrants to submit TGA data, which allows DPR to accurately assess the volatility potential of each pesticide product for which emission potential data had not previously been submitted.

As of May 2012, 372 products are registered to 131 registrants. DPR has established that it has acceptable TGA data (or other sufficient information) on file that satisfies reevaluation requirements for the 372 registered products and has all of the emission potential data that it needs on these liquid and commercial structural-use pesticides to obtain more accurate emission information that complies with the CAA. As a result, DPR has determined that no additional mitigation measures are necessary at this point and reevaluation is concluded.

For more information, please Contact TSG.
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