Lead compounds are regularly added to plastics and vinyl to make them more resistant to high temperatures.

通常将铅化合物添加至塑胶及乙烯基中以增强其抗高温性能。

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Both these compounds are toxic, leading to mercury and lead poisoning.

这两种化合物都是有毒的，能导致汞和铅中毒。

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These compounds reduce overall cellular damage and prevent the hardening of the arteries that can lead to heart disease, stroke, even memory loss.

这些混合物能全面减少细胞的损伤和预防导致心脏病的动脉硬化，中风，甚至记忆力衰退。

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In declaring the emergency, Peru's Environment Ministry said the contamination included high levels of lead, barium and chromium as well as petroleum-related compounds.

NPR: Peru Declares Amazon Oil Contamination Emergency