What signs may indicate lead contamination in drinking water?

What signs may indicate lead contamination in drinking water?

• A. Clear water and sweet taste
• B. Metallic taste, discolored water, and age of plumbing
• C. Odorless and colorless appearance
• D. Frequent air bubbles in the water

Answer: (B)

The correct choice reflects the common indicators of lead contamination in drinking water. A metallic taste can signal the presence of lead, as this is a typical characteristic associated with plumbing that contains lead pipes or solder. Discolored water, which may appear brown or yellow, could also suggest corrosion in plumbing systems, allowing lead and other contaminants to leach into the water supply. Additionally, the age of plumbing is a crucial factor, as older systems are more likely to have lead pipes or fittings, especially if they were installed before regulations against lead were established. In contrast, clear water and a sweet taste do not suggest contamination and may lead users to falsely conclude that the water is safe. The odorless and colorless appearance of water typically indicates that there are no visible contaminants but does not guarantee safety from lead or other harmful substances. Frequent air bubbles in the water might be an indication of water supply issues or aeration but do not specifically point to lead contamination.

The correct choice reflects the common indicators of lead contamination in drinking water. A metallic taste can signal the presence of lead, as this is a typical characteristic associated with plumbing that contains lead pipes or solder. Discolored water, which may appear brown or yellow, could also suggest corrosion in plumbing systems, allowing lead and other contaminants to leach into the water supply. Additionally, the age of plumbing is a crucial factor, as older systems are more likely to have lead pipes or fittings, especially if they were installed before regulations against lead were established.

In contrast, clear water and a sweet taste do not suggest contamination and may lead users to falsely conclude that the water is safe. The odorless and colorless appearance of water typically indicates that there are no visible contaminants but does not guarantee safety from lead or other harmful substances. Frequent air bubbles in the water might be an indication of water supply issues or aeration but do not specifically point to lead contamination.