Air Pollution in London: Exposure and Deprivation

Rosie Brook6th March 2017

Project Outline:Aim: To understand inequalities in access to clean

air in London.

Objectives: • Analyse the relationship between exposure to

AP and deprivation• Through presenting our results, increase public

awareness and support a mandate for action.

What other applications for AP data are there?

Air Quality Data:Annual average air quality concentrations of NO2, PM10 and PM2.5 across London in 2013 at a 20m: http://www.londonair.org.uk/london/asp/annualmaps.asp

• Aggregated to OA and LSOA

Predicted concentrations also available for 2020, 2025 and 2030

Disclaimer: future estimates are to be updated later this year based on methodology developments such as new COPERT emission factors which take closer account of “real world driving” emissions from road vehicles.

Air Quality Data:

• Areas of deprivation (2015):• Combined IMD• Income

• Each LSOA Allocated to a deprivation decile (10% of groups)

Population Data:

10 9 8 7 6 5 4 3 2 1650000

700000

750000

800000

850000

900000

<-- Less deprived Deprivation Decile More Deprived -->

2013

Pop

ulati

on

Population Data:• Ethnicity (2011

census)Other ethnic group

Mixed/multiple ethnic group

Black/African/Caribbean/Black British

Asian/Asian British

White

0 2000000 4000000 6000000

2013 Population

Ethnic Group Sub-groups

White

White: English/Welsh/Scottish/Northern Irish/BritishWhite: IrishWhite: Gypsy or Irish TravellerWhite: Other White

Asian/Asian British

Asian/Asian British: IndianAsian/Asian British: PakistaniAsian/Asian British: BangladeshiAsian/Asian British: ChineseAsian/Asian British: Other Asian

Black/African/Caribbean/Black BritishBlack/African/Caribbean/Black British: AfricanBlack/African/Caribbean/Black British: CaribbeanBlack/African/Caribbean/Black British: Other Black

Mixed/multiple

Mixed/multiple ethnic group: White and Black CaribbeanMixed/multiple ethnic group: White and Black AfricanMixed/multiple ethnic group: White and AsianMixed/multiple ethnic group: Other Mixed

Other ethnic groupsOther ethnic group: ArabOther ethnic group: Any other ethnic group

Ethnicity Deciles:

Population Data:Most vulnerable age groups:• Schools (average concentrations within a

150m buffer around each school)• Under 19• Over 65

Total Population Exposure: Exposure to NO2

concentrations > 40 µg/m³(at OA level)

Results: DeprivationExposure to exceedances:

In areas of poor air quality, where the annual mean NO2 limit value is exceeded, 32% of people are from the most deprived groups, whereas only 7% are from the least deprived.

Results: Deprivation

Results: EthnicityA) White

Results: EthnicityB) Black/African/Caribbean/Black British

Results: EthnicityC) Mixed/ multiple ethnic groups

Results: Schools

Mandate for action

Summary• Combining air pollution data with

population data to understand exposure• Using analysis to draw attention to air

quality issues• Air quality is a sensitive issue, through

suitable analysis can gain some robust and clear messages•What other applications are there for

existing AQ data?

Questions?

Rosie Brookrosie.brook@aether-uk.com

Interim report available from:

https://www.london.gov.uk/WHAT-WE-DO/environment/environment-publications/updated-analysis-air-pollution-exposure-london

Full report to be published shortly

Original report published in 2013: https://www.london.gov.uk/sites/default/files/analysing_air_pollution_exposure_in_london_-_technical_report_-_2013.pdf