RT Journal Article
T1 Sociodemographic and residential characteristics associated to persistent and non-persistent organic pollutants in household dust from Southern Spain. COVID-AND Study
A1 Castillo Hermoso, María Ángeles
A1 Arrebola Moreno, Juan Pedro
A1 Kouiti, Malak
A1 Capelo Álvarez, Rocío
A1 González Alzaga, Beatriz
A1 Castaño Vinyals, Gemma
A1 Olmedo Requena, Rocío
AB Background: Scientific evidence suggests that indoor dust contains chemical pollutants, such as per- and polyfluoroalkyl substances (PFAS), bisphenols, parabens, and benzophenones, which are present in building materials and everyday products and could have implications for human health.Objective: To quantify levels of PFAS, bisphenols, parabens, and benzophenones in household dust of four cohorts from Andalusia (Spain) and determine their relationship with sociodemographic and residential characteristics.Methods: Household dust samples (n = 102) were collected (2023- 2025) within the COVID-AND study (a multi-purpose cohort whose overall aim is to investigate factors associated with Sars-CoV-2 infection in Andalusia), across four cohorts, CAPLIFE, GENEIDA, MCC-Granada, and MCC-Huelva. Target liquid chromatography-tandem mass spectrometry was used to analyze ten PFAS, two bisphenols, four parabens, and five benzophenones. Associations with log-transformed chemical levels were analyzed using robust MM-estimator regression models adjusted for sociodemographic and residential variables.Results: Fifteen out of the 21 target chemicals were detected in all dust samples. Median concentrations ranged from 6.95 ng/g for PFHxA to 8590 ng/g for bisphenol A. High household income was positively associated with PFHxA (β:0.28, 95%CI 0.08,0.49), while University education was associated positively with benzophenone-3 (β:0.43, 95%CI 0.23,0.63). Manual work was linked to butylparaben (β:0.17, 95%CI 0.003,0.34). Densely populated areas were negatively associated with PFOA (β:-0.32, 95%CI -0.50, -0.13) and with older buildings PFOA (β:-0.007, 95%CI -0.01, -0.002)., Higher cleaning frequency was linked to benzophenone-1 (β:0.17, 95%CI 0.02,0.32).Conclusion: Sociodemographic and residential characteristics were associated with pollutant levels in household dust. Confirming these findings in future studies will help identify population groups at high risk of exposure.
PB Elsevier
SN 0013-9351
YR 2026
FD 2026
LK https://hdl.handle.net/10272/28659
UL https://hdl.handle.net/10272/28659
LA eng
NO Castillo-Hermoso, M. Á., Arrebola, J. P., Kouiti, M., Capelo Álvarez, R., González-Alzaga, B., Castaño-Vinyals, G., & Olmedo-Requena, R. (2026). Sociodemographic and residential characteristics associated to persistent and non-persistent organic pollutants in household dust from Southern Spain. COVID-AND Study. Environmental Research, 304, 124825. https://doi.org/10.1016/j.envres.2026.124825
NO This research was funded by the Regional Ministry of Health and Families of Andalusia/Consejería de Salud y Familias, Junta de Andalucía, grant number PI-0257-2021. In addition, M.A.C.H. was supported by a predoctoral contract funded by Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP) of Instituto de Salud Carlos III, Madrid, Spain (grant number 2879/3353).
DS Repositorio Institucional de la Universidad de Huelva
RD 13 jul 2026