Halogens

The World

Pakistani Iodine

Iodine deficiencies haven’t been a problem for Americans in decades. But in Pakistan, this age-old curse is returning with a vengeance, causing problems including mental retardation. Deforestation and flooding wash the iodine out of the soil and don’t allow it to work up through the food chain. Government warnings aren’t reaching the right people, and […]

The World

Swimming in Bleach

The World

Chlorine Causes Controversy

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