Researchers found that children in London whose lung growth had been stunted by pollution showed impressive improvements after the introduction of an Ultra Low Emission Zone (Ulez) in 2019 reduced emissions. Children are also more vulnerable to pollution because their lungs and immune systems are still developing. Ella Adoo-Kissi-Debrah, 9, from London died following an asthma attack in 2013 and later became the first person in the UK to have air pollution listed as a cause of death. Tap the link in @BBCNews's bio to find out more about the study. #AirPollution #Pollution #Environment #ULEZ #BBCNews