Environmental toxin PCB found in deep sea trench
PCB has been banned in most countries since the 1970s, but that doesn't mean it no longer exists. Now, deep-sea researchers report that they have found PCB at the bottom of the Atacama Trench in the Pacific Ocean.
from Phys.org - latest science and technology news stories https://ift.tt/cqPG1px
from Phys.org - latest science and technology news stories https://ift.tt/cqPG1px
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