Children who live near major roads are more likely to have developmental delays, study says

Research has shown that children who lived near a major roadway at birth had lower nonverbal IQ, verbal IQ and visual motor abilities in mid-childhood compared to their peers living farther away. Because many children in the United States live near major roadways — estimates suggest that 30% to 45% of people residing in large North American cities live within 0.3 miles of a highway or a major road — Ha and her colleagues wanted to learn more about links to childhood development.