2,4-D isopropyl ester

Spraying of crops, turf, and rights-of-way; ester forms can vaporize and drift. In the environment and body, it converts to 2,4-D [1][2].

Mixing/spraying products; touching treated grass/crops; breathing spray drift or vapors; residues on food, in water, and in house dust after lawn care [1][4][5].

Short-term effects include irritation, nausea, headache, and weakness; severe poisonings can affect muscles and kidneys [1]. Long-term: thyroid and developmental effects seen in animals at high doses. IARC: possibly carcinogenic (Group 2B); EPA: not likely carcinogenic [2][3].

Applicators and farmworkers; nearby residents; children and pets on recently treated lawns; people applying without protective gear [1][2].

Follow label directions; wear gloves, long sleeves, and eye protection; avoid spraying near homes/water on hot, windy days; stay off treated areas until dry and follow any re-entry times; close windows during nearby spraying; wash produce, remove shoes, and clean floors to reduce tracked-in residues [2][4][5].