• NOx emissions legal limits breached on 5 January, London

    NOx emissions legal limits breached on 5 January, London

    Under EU rules, sites are only allowed to breach hourly limits of 200 ug of nitrogen dioxide (NO2) /m3 air 18 times in a year, but on 5 January 347.7 ug/ m3 was measured on Brixton Road at 9pm, and was the 19th exceedance this year.