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Long-term exposure to major constituents of fine particulate matter and neurodegenerative diseases: a population-based survey in the Pearl River Delta Region, China
Joint International Research Laboratory of Environment and Health, Ministry of Education, Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China.
Joint International Research Laboratory of Environment and Health, Ministry of Education, Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China.
Umeå universitet, Samhällsvetenskapliga fakulteten, Institutionen för psykologi.
Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
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2024 (Engelska)Ingår i: Journal of Hazardous Materials, ISSN 0304-3894, E-ISSN 1873-3336, Vol. 470, artikel-id 134161Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background: Exposure to PM2.5 has been linked to neurodegenerative diseases, with limited understanding of constituent-specific contributions.

Objectives: To explore the associations between long-term exposure to PM2.5 constituents and neurodegenerative diseases.

Methods: We recruited 148,274 individuals aged ≥ 60 from four cities in the Pearl River Delta region, China (2020 to 2021). We calculated twenty-year average air pollutant concentrations (PM2.5 mass, black carbon (BC), organic matter (OM), ammonium (NH4+), nitrate (NO3-) and sulfate (SO42-)) at the individuals' home addresses. Neurodegenerative diseases were determined by self-reported doctor-diagnosed Alzheimer's disease (AD) and Parkinson's disease (PD). Generalized linear mixed models were employed to explore associations between pollutants and neurodegenerative disease prevalence.

Results: PM2.5 and all five constituents were significantly associated with a higher prevalence of AD and PD. The observed associations generally exhibited a non-linear pattern. For example, compared with the lowest quartile, higher quartiles of BC were associated with greater odds for AD prevalence (i.e., the adjusted odds ratios were 1.81; 95% CI, 1.45–2.27; 1.78; 95% CI, 1.37–2.32; and 1.99; 95% CI, 1.54–2.57 for the second, third, and fourth quartiles, respectively).

Conclusions: Long-term exposure to PM2.5 and its constituents, particularly combustion-related BC, OM, and SO42-, was significantly associated with higher prevalence of AD and PD in Chinese individuals.

Environmental implication: PM2.5 is a routinely regulated mixture of multiple hazardous constituents that can lead to diverse adverse health outcomes. However, current evidence on the specific contributions of PM2.5 constituents to health effects is scarce. This study firstly investigated the association between PM2.5 constituents and neurodegenerative diseases in the moderately to highly polluted Pearl River Delta region in China, and identified hazardous constituents within PM2.5 that have significant impacts. This study provides important implications for the development of targeted PM2.5 prevention and control policies to reduce specific hazardous PM2.5 constituents.

Ort, förlag, år, upplaga, sidor
Elsevier, 2024. Vol. 470, artikel-id 134161
Nyckelord [en]
Alzheimer's disease, China, Health risk, Parkinson's disease, PM2.5 constituent
Nationell ämneskategori
Arbetsmedicin och miljömedicin
Identifikatorer
URN: urn:nbn:se:umu:diva-223230DOI: 10.1016/j.jhazmat.2024.134161Scopus ID: 2-s2.0-85189547708OAI: oai:DiVA.org:umu-223230DiVA, id: diva2:1852802
Tillgänglig från: 2024-04-19 Skapad: 2024-04-19 Senast uppdaterad: 2024-04-19Bibliografiskt granskad

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Andersson, JohnOudin, Anna

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Institutionen för psykologiInstitutionen för folkhälsa och klinisk medicin
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Journal of Hazardous Materials
Arbetsmedicin och miljömedicin

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