Tags

Type your tag names separated by a space and hit enter

Effects of low emission zones and congestion charging zones on physical health outcomes: a systematic review.
Lancet. 2022 11; 400 Suppl 1:S30.Lct

Abstract

BACKGROUND

Road traffic impacts human health through air pollution and road safety issues. Low emission zones (LEZs) and congestion charging zones (CCZs) have therefore been implemented in several cities globally. We systematically reviewed the evidence on the effects of these pollution or congestion reduction schemes on specific physical health outcomes associated with air pollution or traffic exposure.

METHODS

We searched MEDLINE, Embase, Web of Science, IDEAS, Greenfile, and TRID databases from database inception to Feb 22, 2022, using search terms such as "low emission/congestion charge/zone" and "cardiovascular/respiratory/injury". Searches were limited to English-language records. We included studies that evaluated the effect of a LEZ or CCZ on air pollution-related outcomes (ie, cardiovascular disease, respiratory disease, birth outcomes, dementia, lung cancer, diabetes) or road traffic injuries, using longitudinal study designs. We excluded studies without empirical health data. Two authors independently assessed papers for inclusion. Results were narratively synthesised and summarised using harvest plots. Risk of bias was assessed using the Graphic Appraisal Tool for Epidemiological studies for correlation studies. This systematic review was registered with PROSPERO, number CRD42022311453.

FINDINGS

Of 2068 post-deduplication records screened, fifteen studies were included, with two further studies included from references of eligible studies. Nine (53%) of 17 studies assessed LEZs in London, Milan, Tokyo, and several German cities, seven (41%) assessed the London CCZ, and one (6%) assessed the Stockholm CCZ. Each predefined health outcome was considered by at least one study. Six (75%) of eight LEZ studies considering pollution-related outcomes identified reductions in at least one outcome, with all five on cardiovascular disease identifying reductions for at least one disease subcategory. Of seven London CCZ studies, six (86%) reported clear reductions in total or car injuries, although one (14%) reported increases for cyclist or motorcyclist injuries and one (14%) for serious or fatal injuries.

INTERPRETATION

Although inter-study heterogeneity exists, current evidence suggests that LEZs reduce some air pollution-related health outcomes. CCZ evidence is mainly limited to London but suggests that they reduce overall road traffic injuries.

FUNDING

National Institute for Health and Care Research (NIHR) School for Public Health Research, NIHR Health Protection Research Unit in Chemical and Radiation Threats and Hazards, MRC Centre for Environment and Health.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Chamberlain RC
MRC Centre for Environment and Health and Small Area Health Statistics Unit, School of Public Health, Imperial College London, London, UK. Electronic address: r.chamberlain20@imperial.ac.uk.
Fecht D
MRC Centre for Environment and Health and Small Area Health Statistics Unit, School of Public Health, Imperial College London, London, UK.
Davies B
MRC Centre for Environment and Health and Small Area Health Statistics Unit, School of Public Health, Imperial College London, London, UK.
Laverty AA
Public Health Policy Evaluation Unit, School of Public Health, Imperial College London, London, UK.

MeSH

HumansLongitudinal StudiesCardiovascular DiseasesAir PollutionCitiesLondonRespiration Disorders

Pub Type(s)

Systematic Review
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

36929974

Citation

Chamberlain, Rosemary C., et al. "Effects of Low Emission Zones and Congestion Charging Zones On Physical Health Outcomes: a Systematic Review." Lancet (London, England), vol. 400 Suppl 1, 2022, pp. S30.
Chamberlain RC, Fecht D, Davies B, et al. Effects of low emission zones and congestion charging zones on physical health outcomes: a systematic review. Lancet. 2022;400 Suppl 1:S30.
Chamberlain, R. C., Fecht, D., Davies, B., & Laverty, A. A. (2022). Effects of low emission zones and congestion charging zones on physical health outcomes: a systematic review. Lancet (London, England), 400 Suppl 1, S30. https://doi.org/10.1016/S0140-6736(22)02240-1
Chamberlain RC, et al. Effects of Low Emission Zones and Congestion Charging Zones On Physical Health Outcomes: a Systematic Review. Lancet. 2022;400 Suppl 1:S30. PubMed PMID: 36929974.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of low emission zones and congestion charging zones on physical health outcomes: a systematic review. AU - Chamberlain,Rosemary C, AU - Fecht,Daniela, AU - Davies,Bethan, AU - Laverty,Anthony A, Y1 - 2022/11/24/ PY - 2023/3/17/entrez PY - 2023/3/18/pubmed PY - 2023/3/22/medline SP - S30 EP - S30 JF - Lancet (London, England) JO - Lancet VL - 400 Suppl 1 N2 - BACKGROUND: Road traffic impacts human health through air pollution and road safety issues. Low emission zones (LEZs) and congestion charging zones (CCZs) have therefore been implemented in several cities globally. We systematically reviewed the evidence on the effects of these pollution or congestion reduction schemes on specific physical health outcomes associated with air pollution or traffic exposure. METHODS: We searched MEDLINE, Embase, Web of Science, IDEAS, Greenfile, and TRID databases from database inception to Feb 22, 2022, using search terms such as "low emission/congestion charge/zone" and "cardiovascular/respiratory/injury". Searches were limited to English-language records. We included studies that evaluated the effect of a LEZ or CCZ on air pollution-related outcomes (ie, cardiovascular disease, respiratory disease, birth outcomes, dementia, lung cancer, diabetes) or road traffic injuries, using longitudinal study designs. We excluded studies without empirical health data. Two authors independently assessed papers for inclusion. Results were narratively synthesised and summarised using harvest plots. Risk of bias was assessed using the Graphic Appraisal Tool for Epidemiological studies for correlation studies. This systematic review was registered with PROSPERO, number CRD42022311453. FINDINGS: Of 2068 post-deduplication records screened, fifteen studies were included, with two further studies included from references of eligible studies. Nine (53%) of 17 studies assessed LEZs in London, Milan, Tokyo, and several German cities, seven (41%) assessed the London CCZ, and one (6%) assessed the Stockholm CCZ. Each predefined health outcome was considered by at least one study. Six (75%) of eight LEZ studies considering pollution-related outcomes identified reductions in at least one outcome, with all five on cardiovascular disease identifying reductions for at least one disease subcategory. Of seven London CCZ studies, six (86%) reported clear reductions in total or car injuries, although one (14%) reported increases for cyclist or motorcyclist injuries and one (14%) for serious or fatal injuries. INTERPRETATION: Although inter-study heterogeneity exists, current evidence suggests that LEZs reduce some air pollution-related health outcomes. CCZ evidence is mainly limited to London but suggests that they reduce overall road traffic injuries. FUNDING: National Institute for Health and Care Research (NIHR) School for Public Health Research, NIHR Health Protection Research Unit in Chemical and Radiation Threats and Hazards, MRC Centre for Environment and Health. SN - 1474-547X UR - https://www.unboundmedicine.com/medline/citation/36929974/Effects_of_low_emission_zones_and_congestion_charging_zones_on_physical_health_outcomes:_a_systematic_review_ DB - PRIME DP - Unbound Medicine ER -