Scientists uncover high amounts of pure DDT off L.A. coast
First it was the eerie images of barrels leaking on the seafloor not far from Catalina Island. Then the shocking realization that the nation’s largest manufacturer of DDT had once used the ocean as a huge dumping ground — and that as many as half a million barrels of its acid waste had been poured straight into the water. Now, scientists have discovered that much of the DDT — which had been dumped largely in the 1940s and ’50s — never broke down. The chemical remains in its most potent form in startlingly high concentrations, spread across a wide swath of seafloor larger than the city of San Francisco. … With a $5.6-million research boost from Congress, at the urging of Sen. Dianne Feinstein (D-Calif.), numerous federal, state and local agencies have since joined with scientists and environmental nonprofits to figure out the extent of the contamination lurking 3,000 feet underwater.