1. ITV Report

London annual air pollution limits 'breached in a month'

Legal air pollution limits for the whole year have been breached within a month in London, figures show.

Credit: PA

On January 31, Brixton Road, Lambeth, broke the rules on nitrogen dioxide, which say concentrations of the pollutant should not exceed maximum permitted levels for more than 18 hours a year.

But experts monitoring pollution in the capital said the date marked "an important departure" from a trend which had seen the limit breached in the first week of the year since 2004 in the capital.

Air pollution is linked to the early deaths of about 40,000 people a year in the UK and causes problems such as heart and lung disease and asthma.

Since 2010, nitrogen dioxide alongside most of London's roads has started to improve and it is good news to see that this trend is continuing at some of London's most polluted locations.

However, while press and public attention will focus on today's measurements at Brixton Road, it is important to note that the majority of main roads in London regularly breach legal values for nitrogen dioxide.

– Gary Fuller, Environmental Research Group at King's College London