Polychlorinated biphenyls

Polychlorinated biphenyls (PCBs) are a group of synthetic organic chemicals that were widely used in various industrial and commercial applications due to their desirable physical and chemical properties. They were produced from the late 1920s until their production was largely banned or restricted in the 1970s and 1980s due to concerns about their environmental and health impacts. PCBs are known for their persistence in the environment and their potential to cause adverse health effects.

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