Campaigners are urging the Government to phase out diesel vehicles in order to improve air quality

The video discusses the severe air pollution in central London, highlighting the high levels of nitrogen dioxide, especially from diesel vehicles. It compares pollution levels across various UK cities, noting that many exceed legal limits. The health impacts are significant, affecting residents' breathing and daily lives. The government is urged to take stronger actions, with some local measures already in place. Public concern is evident, especially regarding children's exposure to toxins.

What health impacts are associated with high levels of air pollution according to the text?

What measures are being proposed by the mayor of London to address air pollution?