Samples From Deep Ocean Trench Contain Alarming Levels of Industrial Chemicals
Decades after manufacturers have stopped producing a class of harmful chemicals once used in electrical equipment, traces of these chemicals have found in a deep sea trench.Lower Drought Conditions In California | Extreme EarthIn a study published in Nature Communications, researchers report detecting PCB chemicals at the bottom of the Atacama Trench off the coast of South America. During an expedition in 2018, a team retrieved sediment cores from fivelocations along the trench. The depths for these samples ranged from…