What impact has lead removal from gasoline had on public health?

The removal of lead from gasoline has significantly improved air quality, which has had a positive impact on public health. Lead was once a common additive in gasoline, and its combustion would release lead particles into the atmosphere. These particles could be inhaled or settle on surfaces, leading to widespread environmental contamination.

With the phase-out of leaded gasoline, there has been a marked decrease in airborne lead levels, which correlates with improvements in overall air quality. This reduction has contributed to lower rates of lead exposure in the general population, particularly among children who are more vulnerable to the harmful effects of lead. Improved air quality has been linked to numerous health benefits, including reduced respiratory issues and other health conditions associated with lead exposure.

The correct choice reflects the important public health advancements achieved by removing lead from gasoline, emphasizing the broader implications for community health and safety.