Chlorendic acid

Manufacturing and use of fiberglass-reinforced plastics and specialty polyester resins; breakdown of chlorendic anhydride; releases from facilities, spills, and waste sites [1][2].

Workplace handling of resins; breathing dust when cutting/sanding cured composites; drinking contaminated well water near facilities or landfills; contact with contaminated soil/sediment [1][2][3].

Animal studies show liver and kidney effects at elevated doses; it can irritate eyes, skin, and airways. Human data are limited; EPA has an oral toxicity value to guide safe exposure, reflecting concern at higher intakes [1][2].

Workers in composite/resin production or repair; people living near production or disposal areas; private well users; pregnant people and children (more sensitive to chemicals) [1][2][3].

At work, use local exhaust, gloves, and respirators as needed; follow safety procedures. Near potential sources, test private wells; consider certified carbon or reverse‑osmosis filters; avoid dusty sanding of composites without controls; wash hands after soil contact [1][2][3].