Asthma in toddlers linked to in-utero exposure to air pollution, study finds

Developing foetuses exquisitely sensitive' to harm from tiny particles, scientists say

Infants whose mothers were exposed to higher levels of tiny air pollution particles during pregnancy are much more likely to develop asthma, according to research.

The study analysed the impact of ultra-fine particles (UFPs), which are not regulated by governments. These are thought to be even more toxic than the larger particles that are routinely monitored and have also been linked to asthma.