The dumping of pure DDT and DDT waste appears to have been exclusively off the coast of California. Montrose Chemical Corporation of California, a leading manufacturer of DDT, is suspected to be behind the dumping in Los Angeles near Catalina Island.
Mark Gold, an environmental scientist at the Natural Resources Defense Council, told The Los Angeles Times, “our nation’s ocean dumpsites all have horrible contamination problems. And yet they are unmonitored.”
While DDT does not impact many people right now, harmful chemicals like PFAS are also linked to health issues. Contamination levels vary across the country. However, most PFAS contaminations in the U.S. are in Alabama, California, Colorado, Massachusetts, Michigan, New Hampshire, New Jersey, North Carolina, Ohio, and South Carolina.