Which of the following groups is most vulnerable to lead exposure?

Children under the age of six are considered the most vulnerable to lead exposure due to several factors related to their developmental stage. At this age, children are in a critical period of growth, and their bodies are more susceptible to the harmful effects of lead. Their neurological systems are still developing, which makes exposure particularly detrimental and can result in long-term cognitive, behavioral, and physical health issues.

Additionally, young children are more likely to engage in behaviors that increase their risk of lead exposure, such as putting objects in their mouths and playing in environments where lead dust may be present, like older homes or buildings with lead-based paint. Their smaller body size and higher metabolic rates mean that they absorb lead more efficiently compared to older children and adults. This heightened vulnerability highlights the importance of lead prevention and detection efforts focused on this age group, as early exposure can lead to irreversible damage and lifelong consequences.