孕期暴露在高空气污染的婴儿在语言和运动测试中得分较低. Babies exposed to high air pollution during pregnancy scored lower on language and motor tests.

伦敦国王学院的一项研究发现, 在怀孕的第一三个月中暴露在高空气污染下的婴儿在18个月后的语言测试得分较低. A King's College London study found that babies exposed to high air pollution during the first trimester of pregnancy scored lower on language tests at 18 months. 过早出生的婴儿在所有阶段都暴露于高污染, Premature infants exposed to high pollution across all stages showed even greater motor skill deficits. 研究人员指出,低于英国法定限量的水平仍超过世界卫生组织的指导方针, 并且可能损害早期大脑发育. Researchers noted that levels below UK legal limits still exceeded World Health Organization guidelines and can harm early brain development.