| Label | Content |
|---|---|
| Meeting: | MQT on 21 March 2019 |
| Session name: | MQT on 21/03/2019 between 10:00 and 13:00 |
| Reference: | 2019/6194 |
| Question by: | David Kurten |
| Organisation: | Brexit Alliance Group |
| Asked of: | The Mayor |
| Category: | Environment |
Question
NOx Levels
What was the average annual NOx level in each of the 19 years from 2000 to 2018 in (i) Greater London (ii) Inner London (III) Outer London (iv) Central London
Answer
The attached table shows the annual average Nitrogen Dioxide (NO2) levels in micrograms per cubic metre (µg/m3) between 2004 to 2018 for background and roadside levels for Greater, Inner and Outer London. Data for Central London cannot be extracted separately.
The table does not include data from before 2004 because there were very few monitoring sites between 2000 to 2003. The 2018 data has not yet been ratified as it requires a review period before certification.
This data is readily available on the London Air Quality Network (LAQN) website at https://www.londonair.org.uk/ and is published in the GLA’s annual report.
Whilst there have been improvements over time, it is clear we need to accelerate our efforts. London is in breach of legal limits for NO2 and will be for several years without the ambitious policies I am taking forward, including the world’s first Ultra Low Emission Zone.
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| NOx Emissions In Central London | 2019/6165 | 21 March 2019 |
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| Underground noise levels | 2018/2044 | 19 July 2018 |
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