PM10 levels

MQT on 2011-03-23
Session date: 
March 23, 2011
Question By: 
Mike Tuffrey
Liberal Democrats
Asked Of: 
The Mayor


In like-for-like terms what has been the trend so far this year for exceedances of the PM10 daily limit value in Marylebone Road compared to the same period in: 2008; 2009; and 2010?


Answer for PM10 levels

Answer for PM10 levels

Answered By: 
The Mayor

Officers are drafting a response which will be sent shortly.

Written response received on 8 April 2011:

Data for 2010 and 2011 is not yet fully ratified. However, as of 16 March 2011, the monitor at Marylebone Road used to report to the EU has recorded 16 exceedence days, eight of which occurred during air quality episodes caused by pollution from continental Europe.

By the same date in 2010, 2009 and 2008 the number of exceedence days were 10, 13 and 16 respectively, of which two days occurred during wider pollution episodes in 2010 and 2009 and six in 2008.