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News and culture through the lens of Southern California. Hosted by A Martínez

Scientists-turned-detectives look to crack the case of the missing DDT

by Take Two®

Bill Power of the Sanitation Districts of Los Angeles County prepares to drop a core into the ocean to gather sediment samples in the waters off Palos Verdes. In the 50's and 60's, Montrose chemical company dumped DDT into the water. Maya Sugarman/KPCC

Something's afoot in the ocean off the Palos Verdes Peninsula, and it's drawing out the detective instincts of scientists. Call it the case of the missing DDT.

Over decades, tons of the pesticide flowed through LA County's sewers. It settled into the world's largest underwater toxic hotspot, but in recent tests, that contamination has all but vanished. KPCC's Molly Peterson talked with researchers working to crack the case.

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