Are toxic heavy metals from solar panels posing a threat to human health?

Toxic heavy metals in solar panels are locked in stable compounds and sealed behind tough glass, preventing escape into air, water, or soil at harmful levels. Most concern focuses on cadmium and lead. 40% of new U.S. panels use cadmium telluride, which does not dissolve in water, easily turn to gas, or approach the toxicity of pure cadmium.

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