Children who live near major roads are more likely to have developmental delays, study says
https://edition-m.cnn.com/2019/04/08/health/highways-children-cognition-study/index.html?r=https%3A%2F%2Fedition.cnn.com%2F
Recently in Japan, where more and more people tend to live around mega cities like Tokyo, people rarely care about air quality.
Furthermore, most of them prefer houses near railway stations to houses along major roads.
So, effects on children about air quality along major roads won't be a social issue in Japan.