Public workshop on 1,3-dichloropropene (1,3-D) Oct. 17, 2019, Sacramento

Back to Active Ingredient: 1,3-Dichloropropene (Telone) Human Health Risk Assessment and Mitigation Documents and Activities

En Español

Flyer for Public workshop on 1,3-dichloropropene (1,3-D) Oct. 17, 2019, Sacramento

The California Department of Pesticide Regulation (DPR) is inviting you to attend a workshop on October 17, 2019 to explore additional measures to protect bystanders and residents from acute (short-term) inhalation exposures to 1,3-dichloropropene (1,3-D). 1,3-D is a pre-plant fumigant used to control insects, nematodes, and other organisms in the soil that threaten a variety of crops including nut trees, berries, sweet potatoes, and grapes. It is commonly injected into the soil or applied through drip irrigation.

This DPR workshop will discuss the acute 1,3-D regulatory target concentration, possible 1,3-D mitigation measures, and timing for implementation. The workshop will also provide time to answer questions and hear suggestions for alternative approaches that would be equally effective in reducing acute exposure to 1,3D.

Workshop Materials:

*Attendees requiring interpretation services are requested to register by October 10, 2019. Register Here:

1,3-D is a toxic air contaminant and a "restricted material" that requires a permit from the county agricultural commissioner prior to its application. In addition, applications of 1,3-D must be recommended by a licensed pest control advisor and supervised by a licensed certified applicator.

*This workshop will be webcast at