What is the purpose of the air sampling that the Department of Pesticide Regulation (DPR) plans to conduct in Lompoc, California?
The Department of Pesticide Regulation (DPR) plans to measure air concentrations of several pesticides (fumigants) that are applied to agricultural soils before planting. The fumigants include 1,3-dichloropropene (Telone®), chloropicrin, metam-sodium, and methyl bromide. The sampling and analysis plan is designed to measure the highest concentrations of these pesticides over a short period of time. DPR will then use these data to determine if the measured air concentrations of these fumigants, as used in the Lompoc area (Santa Barbara County), exceed the acute (24-hour) human health screening levels for each of these four pesticides. The study is part of a two-phase comprehensive monitoring program to measure pesticide air concentrations in the Lompoc area. The primary objective of the two-phase pesticide air monitoring program is to gather information to provide answers to two main questions: (1) Are Lompoc residents exposed to pesticides in air? (2) If so, which pesticides, and in wh
