Nitrogen dioxide margins of tolerance

Meeting: 
MQT on 2010-07-14
Session date: 
July 14, 2010
Reference: 
2010/2218
Question By: 
Darren Johnson
Organisation: 
City Hall Greens
Asked Of: 
The Mayor

Question

Which monitoring stations in Greater London have recorded mean concentrations of nitrogen dioxide over 60 micrograms per cubic metre in the six months ending 30 June 2010? This is the mean concentration that must not be exceeded for the whole of 2010 if the UK obtains a time extension until January 2015 to achieve the EU annual limit value for nitrogen dioxide.

Answer

Answer for Nitrogen dioxide margins of tolerance

Answer for Nitrogen dioxide margins of tolerance

Answered By: 
The Mayor

Provisional data suggests that just over 20 monitoring sites within Greater London that have recorded concentrations over 60 microgrammes per cubic metre in the last six months.

For more detailed information on air quality on a site by site basis, please use the publically available London Air Quality Network website (www.londonair.org.uk) which is administered by Kings College London and contains data for all monitoring sites in London.