Contribution to MailOnline article on widening the Ultra Low Emission Zone (ULEZ) in London.

Description

Dr Pfrang was invited to comment in MailOnline article and contributed the following:

"Dr Christian Pfrang, an atmospheric scientist at the University of Birmingham, also said: 'Exposure to high levels of fine particles (PM2.5) from traffic increases the risk of developing lung cancer. 

'Recent research found that exposure to PM2.5 promotes the growth of cells in the lungs which carry cancer-causing mutations. 

'Unlike other pollutants, such as nitrogen dioxide, a large proportion of PM2.5 in London comes from regional, and often transboundary (non-UK) sources.'

He added: 'Much of this background contribution to PM2.5 comes from areas outside of London, but an expansion of the Ultra Low Emission Zone to the whole of Greater London is still useful, as any reduction in PM2.5 as well as other hazardous pollutants from traffic will lower the risk of negative health outcomes especially in densely populated areas.' "

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