Lead exposure is commonly linked to contamination from which household components?

Lead exposure is commonly linked to contamination from which household components?

• A. Plumbing pipes and fixtures and some ceramic glazes
• B. Freshwater algae
• C. Plastic toys
• D. Wooden furniture

Answer: (A)

Lead exposure in homes most often comes from materials that contact drinking water and foods. Plumbing pipes and fixtures, especially in older houses, can release lead into water as corrosion occurs. Lead has been used in pipes, solder, and some brass fittings, so water that sits in these systems can pick up lead. Some ceramic glazes used on dishware and pottery contain lead, and lead can leach into beverages or foods from those glazes, particularly if the ware is worn or used with acidic liquids. The other options aren’t typical sources for this exposure route. Freshwater algae aren’t a household component, and while some old plastic toys or lead-painted wooden furniture could pose hazards, they don’t represent the common contamination pathway for drinking water like plumbing components and glazed ceramic ware do.

Lead exposure in homes most often comes from materials that contact drinking water and foods. Plumbing pipes and fixtures, especially in older houses, can release lead into water as corrosion occurs. Lead has been used in pipes, solder, and some brass fittings, so water that sits in these systems can pick up lead. Some ceramic glazes used on dishware and pottery contain lead, and lead can leach into beverages or foods from those glazes, particularly if the ware is worn or used with acidic liquids.

The other options aren’t typical sources for this exposure route. Freshwater algae aren’t a household component, and while some old plastic toys or lead-painted wooden furniture could pose hazards, they don’t represent the common contamination pathway for drinking water like plumbing components and glazed ceramic ware do.