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The most polluted schools in London are to be audited as part of the mayor’s drive to clean up toxic air across the capital.

In 1868 the world’s first traffic light was installed outside the Houses of Parliament. The gaslit signal controlled the flow of London carriages—at least for a few weeks.

Heat trapped by dark-coloured roads and buildings will more than double cities' costs for tackling global warming this century by driving up energy demand to keep citizens cool and by aggravating p

The traffic congestion and its high socioeconomic cost, brought by China’s fast urbanization, has forced the demand for congestion mitigation and emission reduction in the transport sector onto the government’s agenda.

• A London-based tech start-up is developing a secretive tool designed to limit the impact of air pollution in major cities.

YouGov poll reveals high levels of concern over air quality, as Mayor's Office confirms every borough has illegal levels of pollution.

People with low income often experience higher exposures to air pollutants.We compared the exposure to particulate matter (PM1, PM2.5 and PM10), Black Carbon (BC) and ultrafine particles (PNCs; 0.02–1 μm) for typical commutes by car, bus and underground from 4 London areas with different levels of income deprivation (G1 to G4, from most to least deprived). The highest BC and PM concentrations were found in G1 while the highest PNC in G3. Lowest concentrations for all pollutants were observed in G2.

Exceedingly high levels of fine particulate matter (PM) occur frequently in China, but the mechanism of severe haze formation remains unclear. From atmospheric measurements in two Chinese megacities and laboratory experiments, we show that the oxidation of SO2 by NO2 occurs efficiently in aqueous media under two polluted conditions: first, during the formation of the 1952 London Fog via in-cloud oxidation; and second, on fine PM with NH3 neutralization during severe haze in China.

The principal driver of air pollution in London is road transport and, within that, diesel vehicles. Nearly 40 per cent of all NOx emissions within London come from diesel vehicles, and unless this is explicitly tackled it will be impossible to cleanse London’s air.

A large isoniazid-resistant tuberculosis outbreak centred on London, United Kingdom, has been ongoing since 1995. The aim of this study was to investigate the power and value of whole genome sequencing (WGS) to resolve the transmission network compared to current molecular strain typing approaches, including analysis of intra-host diversity within a specimen, across body sites, and over time, with identification of genetic factors underlying the epidemiological success of this cluster.

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