Ultra Low Emission Zone impacts (2)

MQT on 2014-03-19
Session date: 
March 19, 2014
Question By: 
Jenny Jones
City Hall Greens
Asked Of: 
The Mayor


What is your assessment of the estimated impact on reducing concentrations of pollutants which will arise from your four packages of ULEZ measures?


Answer for Ultra Low Emission Zone impacts (2)

Answer for Ultra Low Emission Zone impacts (2)

Answered By: 
The Mayor

For the purposes of policy screening NOx, PM10 and CO2 emissions savings were calculated. In the next stage of the analysis PM10, PM2.5, NOx and NO2 emissions and concentrations modelling will be carried out.

Prior to policy screening a number of sensitivity tests were carried out to understand how different % changes in emissions would affect concentrations. These were made available to the Environment Committee and can be found here:


Emissions and concentrations modelling for PM10, PM2.5, NOx and NO2 will be included in the next stage of analysis.