How can lead make individuals sick?

Lead can make individuals sick through both inhalation and ingestion, making the choice of breathing or swallowing it the most comprehensive and accurate answer. When lead dust is inhaled, it enters the respiratory system and can cause various health issues, including neurological impairments and respiratory problems. Ingestion typically occurs when lead particles contaminating food or hands are swallowed, leading to similar adverse health effects, particularly in children who are more vulnerable to lead poisoning.

This understanding highlights the importance of minimizing exposure to lead in different forms, not just focusing on one route of entry. While other options frame the means of exposure inaccurately, it’s crucial to recognize that lead toxicity can result from multiple pathways, underscoring the necessity for effective lead management and abatement strategies.