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Children's Health in London and Luton (CHILL)

NCT04695093 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 3312

Last updated 2026-04-23

No results posted yet for this study

Summary

Investigating the impact of London's Ultra Low Emission Zone on children's respiratory health

Conditions

  • Pollution; Exposure
  • Respiratory Disease
  • Child Development

Interventions

OTHER

Ultra Low Emission Zone (ULEZ)

The ULEZ comprises a Central London zone, implemented on 8th April 2019, within which polluting vehicles are subject to a charge. Using number plate recognition technology, a daily penalty charge notice is issued for vehicles entering this central zone not meeting the standard of Euro 4 for petrol, Euro 6/VI for diesel, and Euro for motorcycles. The ULEZ will subsequently be extended to include: 1. In 2020, a London-wide ULEZ for heavy duty vehicles (HDV) within the LEZ boundary (green zone). HDVs not meeting Euro 6 standard will be charged daily. 2. In 2021, an Inner London ULEZ area for all light duty vehicles (LDV) within the boundary of the North and South Circular Roads (yellow zone). Vehicles not meeting the above criteria will be charged daily as for the Central London area.

Sponsors & Collaborators

  • King's College London

    collaborator OTHER

  • University of Edinburgh

    collaborator OTHER

  • University of Bedfordshire

    collaborator OTHER

  • University of Cambridge

    collaborator OTHER

  • University of Southern California

    collaborator OTHER

  • Queen Mary University of London

    lead OTHER

Principal Investigators

  • Mays Jawad, PhD · Queen Mary University of London

Eligibility

Min Age
9 Years
Max Age
9 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2018-06-05
Primary Completion
2023-07-01
Completion
2023-07-01

Countries

  • United Kingdom

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04695093 on ClinicalTrials.gov