Article ; Online: Arsenic in drinking water and lung cancer: A systematic review of 35 years of evidence.
Toxicology and applied pharmacology
2024 Volume 483, Page(s) 116808
Abstract: The association between higher arsenic concentrations in drinking water and lung cancer is well-established. However, the risk associated with lower levels of arsenic exposure remains uncertain. This systematic review and meta-analysis summarizes the ... ...
Abstract | The association between higher arsenic concentrations in drinking water and lung cancer is well-established. However, the risk associated with lower levels of arsenic exposure remains uncertain. This systematic review and meta-analysis summarizes the evidence on the relationship between exposure to arsenic in drinking water and lung cancer outcomes as measured over a broad range of exposures, including lower levels. A total of 51 studies were included in the review and 15 met criteria for inclusion in meta-analysis. Risk estimates for lung cancer incidence and mortality were pooled and analyzed separately using Bayesian hierarchical random-effects models with a Gaussian observation submodel for log(Risk), computed using the "brms" R package. For lung cancer incidence, the predicted posterior mean relative risks (RRs) at arsenic concentrations of 10, 50 and 150 μg/L were 1.11 (0.86-1.43), 1.67 (1.27-2.17) and 2.21 (1.61-3.02), respectively, with posterior probabilities of 79%, 100% and 100%, respectively, for the RRs to be >1. The posterior mean mortality ratios at 20, 50 and 150 μg/L were 1.22 (0.83-1.78), 2.10 (1.62-2.71) and 2.41 (1.88-3.08), respectively, with posterior probabilities being above 80%. In addition to observing the dose-response relationship, these findings demonstrate that individuals exposed to low to moderate levels of arsenic (<150 μg/L) were at an elevated risk of developing or dying from lung cancer. Given the widespread exposure to lower levels of arsenic, there is an urgent need for vigilance and potential revisions to regulatory guidelines to protect people from the cancer risks associated with arsenic exposure. |
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MeSH term(s) | Humans ; Drinking Water/adverse effects ; Arsenic/toxicity ; Bayes Theorem ; Water Pollutants, Chemical/toxicity ; Lung Neoplasms/chemically induced ; Lung Neoplasms/epidemiology ; Environmental Exposure/adverse effects |
Chemical Substances | Drinking Water ; Arsenic (N712M78A8G) ; Water Pollutants, Chemical |
Language | English |
Publishing date | 2024-01-11 |
Publishing country | United States |
Document type | Meta-Analysis ; Systematic Review ; Journal Article |
ZDB-ID | 204477-8 |
ISSN | 1096-0333 ; 0041-008X |
ISSN (online) | 1096-0333 |
ISSN | 0041-008X |
DOI | 10.1016/j.taap.2024.116808 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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