Water Nuggets Practice Exam

Question: 1 / 400

How does the presence of nitrates in water sources affect human health?

It boosts immune function

It causes skin irritations

It can lead to methemoglobinemia in infants

The presence of nitrates in water sources is particularly concerning for human health, especially for infants. Nitrates can be converted into nitrites in the body, and in high enough levels, nitrites can interfere with the ability of red blood cells to carry oxygen. This condition is known as methemoglobinemia, or "blue baby syndrome." Infants are especially vulnerable because their bodies are less able to process nitrates compared to older children and adults. The condition can lead to symptoms such as shortness of breath and a bluish tint to the skin due to decreased oxygen levels in the bloodstream, which can be dangerous if not addressed. Thus, the association between nitrates and methemoglobinemia highlights a critical public health concern, particularly in areas where water sources may be contaminated with agricultural runoff or wastewater containing high levels of nitrates.

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It enhances digestion

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