Search questions

• Reference: 2019/14269
• Question by: David Kurten
• Meeting date: 18 July 2019

It is known that PM 2.5 levels on the London Underground are many times higher than the legal limit, with Hampstead being one of the worst examples, but what are average annual concentrations of NO 2 , SO 2 , methane, ozone and volatile organic compounds at the platform level in Hampstead Station and other PM 2.5 blackspots?

• Reference: 2019/14271
• Question by: David Kurten
• Meeting date: 18 July 2019

What is the composition of the different elements and compounds in PM2.5s above ground?

• Reference: 2019/14272
• Question by: David Kurten
• Meeting date: 18 July 2019

What is the composition of the different elements and compounds in PM2.5s below ground on the tube network?

• Reference: 2019/14273
• Question by: David Kurten
• Meeting date: 18 July 2019

Do you consider that total PM2.5 concentration is a good measure of assessing the health risk of particulate matter, or would it be better to measure and report the PM2.5 concentrations of individual chemicals and material groups such as iron, carbon, pollens, salt, upholstery fabrics? Given your differing and incompatible narratives on the risk of tube dust above and below ground, do you think a rethink is necessary to move towards reporting separate PM2.5 levels rather than total PM2.5 levels as a global standard?

• Reference: 2019/6192
• Question by: David Kurten
• Meeting date: 21 March 2019

What was the average annual PM 2.5 level in each of the 19 years from 2000 to 2018 in (i) Greater London (ii) Inner London (III) Outer London (iv) Central London

• Reference: 2019/6193
• Question by: David Kurten
• Meeting date: 21 March 2019

In the last meeting of the Environment Committee your Deputy Mayor Shirley Rodriguez would not commit to bringing PM 2.5 levels on the Underground down from over 300 µg/m 3 to your target of 10 µg/m 3 when I asked her. Will you as the Mayor commit to your own target of bringing PM 2.5 levels down to 10 µg/m 3 on all parts of the Underground?

• Reference: 2019/6194
• Question by: David Kurten
• Meeting date: 21 March 2019

What was the average annual NO x level in each of the 19 years from 2000 to 2018 in (i) Greater London (ii) Inner London (III) Outer London (iv) Central London

• Reference: 2019/6165
• Question by: David Kurten
• Meeting date: 21 March 2019

You stated in your answer to question MQ2019/0220 that you believe taxis will cause 30% of NO x emissions in Central London in 2020. Does this figure include taxis only, or is it a combined figure for taxis and private hire vehicles? In either case, what percentage of NO x emissions ­ in Central London do you estimate will be caused by private hire vehicles in Central London in 2020?

• Reference: 2019/6183
• Question by: David Kurten
• Meeting date: 21 March 2019

Are emissions projections of the taxi fleet & mileage weighted?

• Reference: 2019/4110
• Question by: David Kurten
• Meeting date: 25 February 2019

What is the total financial value of any in-kind support given to the FIA Foundation/Real Urban Emissions Initiative in 2018 by TfL & the Mayor’s Office?