CDPH Lead Inspector/Assessor California State Practice Exam

True or False: A person can be poisoned through a high-level source of lead or cumulative low-level sources.

1. True

2. False

3. Depends on the duration of exposure

4. Only true for cumulative exposure

The correct answer is: True

The statement is true because lead poisoning can occur from both high-level sources of lead and cumulative exposure from multiple low-level sources. High levels of lead, such as that found in industrial environments or certain contaminated areas, can cause acute poisoning. However, low-level exposure over time, such as from lead dust or lead-contaminated water, can also accumulate in the body and lead to chronic health issues. Cumulative low-level exposure is particularly concerning because it can gradually build up lead levels in the bloodstream and contribute to adverse health effects, even if each individual exposure is below the threshold for immediate toxicity. Understanding this is critical for lead inspectors and assessors, as they must evaluate both types of exposure risks in homes, schools, and occupational settings to protect public health effectively.