Different temporal trends of exposure to Bisphenol A among international travelers between Los Angeles and Beijing.
Biomarker
Bisphenol A (BPA)
Exposure
Regulatory policy
Temporal trend
Journal
Environment international
ISSN: 1873-6750
Titre abrégé: Environ Int
Pays: Netherlands
ID NLM: 7807270
Informations de publication
Date de publication:
08 2020
08 2020
Historique:
received:
21
02
2020
revised:
13
04
2020
accepted:
21
04
2020
pubmed:
14
5
2020
medline:
15
12
2020
entrez:
14
5
2020
Statut:
ppublish
Résumé
Recent studies suggested a significant downward trend in population's exposure to bisphenol A (BPA) in the United States. However, the temporal trend of BPA exposure remains unclear in China - a populous country with substantial industrial activities but less efforts made to phase out BPA in consumer products. In addition, it is unclear to what extent a visit from the United States to China could affect human exposure to BPA. In this natural experiment, we measured the concentration of total BPA in 418 urine samples repeatedly collected from 55 Los Angeles residents before, during, and after they spent 10 weeks in Beijing from 2012 to 2017. We found that traveling from Los Angeles to Beijing led to a 2.91-fold (95% CI: 2.43 to 3.50) increase in urinary BPA levels, which fully returned to baseline after study participants came back to Los Angeles. From 2012 to 2017, urinary BPA concentrations decreased in Los Angeles by 25.5% per year (95% CI: -30.8% to -19.8%; p < 0.001) but did not change in Beijing (p = 0.24). Consequently, the concentration ratio of urinary BPA between Beijing and Los Angeles increased from 1.23 (95% CI: 0.82 to 1.85) in 2012 to 4.05 (95% CI: 2.75 to 5.97) in 2017. These results indicate that BPA exposures may increase among international travelers to China. Additional efforts are needed to reduce population's exposure to BPA in China.
Identifiants
pubmed: 32402980
pii: S0160-4120(20)30678-4
doi: 10.1016/j.envint.2020.105758
pmc: PMC7283011
mid: NIHMS1595220
pii:
doi:
Substances chimiques
Benzhydryl Compounds
0
Phenols
0
bisphenol A
MLT3645I99
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
105758Subventions
Organisme : NIEHS NIH HHS
ID : R01 ES027487
Pays : United States
Organisme : NIEHS NIH HHS
ID : R21 ES024560
Pays : United States
Informations de copyright
Copyright © 2020 The Authors. Published by Elsevier Ltd.. All rights reserved.
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