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Air Pollution Exposure Estimates
Population Size
2,193,758
People
Years
2019
Associated BioSamples
None/not available
Geographic coverage
United Kingdom
England
...see more
Lead time
1-2 months
Summary
Modelled concentrations of annual average nitrogen dioxide (NO2) and particulate matter with diameter <2.5µm (PM2.5) were linked to postcode centroids in Greater London. The pollution values are joined to NWL Registered population using current postcode.
Documentation
Modelled concentrations (µg/m3) of annual average nitrogen dioxide (NO2) and particulate matter with diameter <2.5µm (PM2.5) were linked to postcode centroids in Greater London. Air pollution exposure estimates (i.e. concentrations) were derived using models developed for the year 2015 by overlaying the x,y location of postcode centroids with NO2 and PM2.5 maps (25m x 25m resolution) within a geographic information system (GIS). Following analysis of changes in air pollution measurements over time, using routine monitoring data from the DEFRA-run Automatic Urban and Rural Network (AURN), we made adjustments to the 2015 modelled concentrations to estimate 2010 to 2019 exposures using a method know as ‘differencing’ (Gulliver et al. 2013).
Dataset type
Environment and energy
Dataset sub-type
Not applicable
Dataset population size
2193758
Keywords
AIR POLLUTION, Air pollution, Pollution, Discover-NOW, Real World data, Linked longitudinal, Real world data
Observations
Observed Node | Disambiguating Description | Measured Value | Measured Property | Observation Date |
|---|---|---|---|---|
Events | Air Pollution Estimates | 4391067 | Count | 14 Sep 2021 |
Persons | Registered population | 2193758 | count | 20 Oct 2022 |
Provenance
Purpose of dataset collection
Study
Source of data extraction
Other
Collection source setting
Other
Patient pathway description
This table contains list of postcodes showing the pollution reading. Patient pathway can be worked out by linking this table with the patient index table available as part of Discover-NOW
Image contrast
Not stated
Biological sample availability
None/not available
Structural Metadata
Details
Publishing frequency
Annual
Version
2.0.0
Modified
08/10/2024
Distribution release date
31/03/2019
Citation Requirements
NHS NWL ICS;,;Discover-NOW
Coverage
Start date
31/03/2019
Time lag
Variable
Geographic coverage
United Kingdom, England, London, Hillingdon, Westminster, Kensington and Chelsea, Harrow, Brent, Ealing, Hounslow, Hammersmith and Fulham
Maximum age range
150
Follow-up
1 - 10 Years
Accessibility
Language
en
Controlled vocabulary
OTHER
Format
Excel, SQL, Tableau, R
Data Access Request
Dataset pipeline status
Not available
Access rights
Time to dataset access
1-2 months
Access request cost
In Progress
Access method category
TRE/SDE
Access service description
Researchers will have access to a VDI environment with a specific username and password. The researchers will get access to the datasets that is present in the hub's catalogue and would be able to carry out their research within the safe haven. There are restrictions applied which prevents the researchers from taking data out of the safe haven, once the research/analysis is completed the admin team will need to be contacted for taking the analysis off the safe haven.
Jurisdiction
GB
Data use limitation
No restriction
Data use requirements
Time limit on use,Collaboration required,Project-specific restrictions,Geographical restrictions
Data Controller
Joint data controller model across North West London
Data Processor
North West London Integrated Care Board (NWL ICB) North East London Integrated Care Board (NEL ICB) North of England Commissioning Support Unit (NECS)
Dataset Types: Environment and energy
Collection Sources: Other
Publications about this dataset
How an electronic health record became a real-world research resource: comparison between London's W...Bottle A, Cohen C, Lucas A, Saravanakumar K, Ul-Ha...
BMC medical informatics and decision making BMC medical informatics and decision making
Published - 2020