A London policeman wearing a mask for protection against the thick fog which hit most of the country and turned to smog in the city on Jan. 1, 1962. (Photo by Keystone/Getty Images) London's poor ...

Monet's favourite season in London was winter, when "the fog mixed with all the pollution, the smoke from the factories, all the particles in the air," said Karen Serres, curator of the exhibition ...

Low Emissions Zone led to a drastic decrease in pollution, and increased air quality in every part of the city.

They wanted breathable air! The first piece to the Los Angeles smog puzzle was its smell, which was different from the sulfurous smog that claimed lives in Donora, Pa., and London, England. In those ...

London boroughs that resisted the expansion of the ULEZ ultra low emissions scheme have enjoyed the greatest fall in a dangerous air pollutant since it was brought in, a review has found.