The mother of a nine-year-old girl from South London who died after a severe asthma attack is trying to make legal history.
She is fighting for air pollution to be recorded as the cause of death, something that has never happened before.
And as Al Jazeera's Nadim Baba reports, strong evidence supports her.

- Subscribe to our channel: http://aje.io/AJSubscribe
- Follow us on Twitter: https://twitter.com/AJEnglish
- Find us on Facebook: https://www.facebook.com/aljazeera
- Check our website: https://www.aljazeera.com/

#AlJazeeraEnglish #UK