GK
ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Carbon monoxide
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Nitrate
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Fluoride
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Mercury
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Detailed explanation-1: -The use of nitrate-contaminated drinking water to prepare infant formula is a well-known risk factor for infant methemoglobinemia . Affected infants develop a peculiar blue-gray skin color and may become irritable or lethargic, depending on the severity of their condition.
Detailed explanation-2: -A blue baby syndrome is caused by methemoglobinemia. It is caused by nitrate contamination in groundwater resulting in decreased oxygen carrying capacity of haemoglobin in babies leading to death.
Detailed explanation-3: -Nitrate in water is almost completely absorbed into the blood. Our bodies convert a portion of that nitrate into nitrite. Nitrite reacts with blood to create methemoglobin. The more methemoglobin in the blood, the worse that blood is at carrying oxygen where it is needed.