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Other effects of PCBs in animals include changes in the immune system, behavioral alterations, and impaired reproduction. [55] PCBs that have dioxin-like activity are known to cause a variety of teratogenic effects in animals. Exposure to PCBs causes hearing loss and symptoms similar to hypothyroidism in rats. [70]
Exposure to high levels of dioxins in humans causes a severe form of persistent acne, known as chloracne. [34] High occupational or accidental levels of exposures to dioxins have been shown by epidemiological studies to lead to an increased risk of tumors at all sites. [35] Other effects in humans (at high dose levels) may include:
Ortho-PCBs may alter hormone regulation through disruption of the thyroid hormone transport by binding to transthyretin. [8] Coplanar PCBs are similar to dioxins and furans, both bind to the aryl hydrocarbon receptor (AhR) in organisms and may exert dioxin-like effects, in addition to the effects shared with non-coplanar PCBs.
The PCB oil leaked to rice bran oil consumed by thousands of people in Japan (Yusho disease 1968) and Taiwan (Yu-cheng disease 1979). The toxic effects have been attributed to dioxin-like PCBs and PCDFs. Their daily intake was up to 100,000 times higher than average intake presently. [1]
(Reuters) -A Washington jury on Tuesday ordered Bayer to pay $100 million to four people who say they were sickened by toxic chemicals known as PCBs at a Seattle-area school, but found the company ...
PCB contamination in humans may come from drinking the contaminated water, absorption through the skin, eating contaminated aquatic life, and/or inhaling volatilized PCBs. PCB contamination is especially dangerous for pregnant and nursing women. The contamination can reach the fetus and potentially cause birth defects.
All intentional ingestions for self harm carry significant risk of death or severe neurologic effects and require monitoring in a hospital setting. [3] In humans the most common initial effects of unintentional exposure are nausea, vomiting, abdominal pain, and diarrhea, though delayed seizures have been reported. [3]
The agrochemical giant Monsanto has agreed to pay Washington state $95 million to settle a lawsuit that blamed it for pervasive pollution from PCBs — toxic industrial chemicals that have ...