Air Pollution

Meeting: 
MQT on 2017-07-13
Session date: 
July 13, 2017
Reference: 
2017/2715
Question By: 
David Kurten
Organisation: 
UKIP
Asked Of: 
The Mayor
Category: 

Question

Have you incorporated tropospheric ozone levels in London into your air quality, or climate change action plans?

Answer

Answer for Air Pollution

Answer for Air Pollution

Answered By: 
The Mayor

The majority of tropospheric ozone formation occurs when nitrogen oxides (NOx), carbon monoxide (CO) and volatile organic compounds (VOCs), such as xylene, react in the atmosphere in the presence of sunlight.

Formation of ozone can take place over several hours or days and may have arisen from emissions many hundreds or even thousands of kilometres away. For this reason ozone is not considered to be a 'local' pollutant. However by focusing on addressing NOx and other pollutant emissions my policies help to address ozone pollution.