CDPH Lead Inspector/Assessor California State Practice Exam

What is a primary cause of leaded dust generation in homes?

1. Lead-based paint deterioration

2. Natural weathering

3. Cooking activities

4. Smoking indoors

The correct answer is: Lead-based paint deterioration

Leaded dust generation in homes is primarily linked to the deterioration of lead-based paint. Homes built before 1978 are especially at risk, as they may still contain lead-based paints, which, when they begin to crack, chip, or peel, release lead particles into the environment. This process can create lead dust that settles on surfaces within the home, posing a significant health risk, particularly to young children who may ingest lead through hand-to-mouth activities. While natural weathering and other factors might contribute somewhat to dust accumulation, they do not specifically produce leaded dust in the same way that the deterioration of lead-based paint does. Cooking activities and smoking indoors can generate dust and particles, but they are not associated with lead contamination. Thus, the primary cause of leaded dust in homes is indeed the deterioration of lead-based paint.