![]() Since 2001, 20 states have banned mercury “fever thermometers” for medical use, and regulations tighten every year. When did they stop putting mercury in thermometers? The mercury will evaporate and can contaminate the surrounding air and become toxic to humans and wildlife. ![]() The small silvery ball in a mercury thermometer can be dangerous if the glass breaks and the mercury is not cleaned up properly. ![]()
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