Air pollution raises the risk of miscarriage for pregnant women as much as smoking. That was the finding of scientists investigating the impact of air quality on birth outcomes last year, while other studies have shown that pollution can increase the risk of premature birth and low birth weight.
Pregnant women are among those groups being urged to take special care as the capital struggles with the coronavirus outbreak.
Before these times of social distancing and self-isolation, they also found themselves particularly challenged by air pollution.
Talking before the pandemic, at 38 weeks pregnant, Victoria Frend acknowledged that the benefits of walking outdoors outweigh the negative impacts of pollution.
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