Dr. Jill Johnston, Co-director of SC-CEHRT, and Dr. Yoshira Ornealas Van Horne, a previous pilot project awardee, published a study on methyl bromide applications in California. Methyl bromide (MeBr) is a developmental, neurologic, and respiratory toxicant that has historically been used as a pesticide, herbicide, and fungicide in the shipping and storing of goods. MeBr was set to phase out of use by 2005, but the Clean Air Act allows for certain exemptions. This study found that due to these exemptions, MeBr use still exists in 36 out of 58 California counties, highlighting the importance of evaluating chemical phaseouts and improving enforcement and monitoring to ensure public health protections. The study also highlighted that because MeBr is heavier than air, children's exposure to MeBr may be greater than that of adults. This is critical because exposure to MeBr has been associated with restricted fetal growth and increased risk of pediatric asthma emergency department visits in children 6 to 18 years old.