Isley, Cynthia Faye, Fry, Kara L., Liu, Xiaochi, Filippelli, Gabriel Michael, Entwistle, Jane, Martin, Adam P., Kah, Melanie, Meza-Figueroa, Diana, Shukle, John T., Jabeen, Khadija, Famuyiwa, Abimbola O., Wu, Liqin, Sharifi-Soltani, Neda, Doyi, Israel N. Y., Argyraki, Ariadne, Ho, Kin Fai, Dong, Chenyin, Gunkel-Grillon, Peggy, Aelion, C. Marjorie and Taylor, Mark Patrick (2022) International Analysis of Sources and Human Health Risk Associated with Trace Metal Contaminants in Residential Indoor Dust. Environmental Science & Technology, 56. pp. 1053-1068. ISSN 0013-936X
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Abstract
People spend increasing amounts of time at home, yet the indoor home environment remains understudied in terms of potential exposure to toxic trace metals. We evaluated trace metal (and metalloid) concentrations (As, Cu, Cr, Mn, Ni, Pb, and Zn) and health risks in indoor dust from homes from 35 countries, along with a suite of potentially contributory residential characteristics. The objective was to determine trace metal source inputs and home environment conditions associated with increasing exposure risk across a range of international communities. For all countries, enrichments compared to global crustal values were Zn > Pb > Cu > As > Cr > Ni; with the greatest health risk from Cr, followed by As > Pb > Mn > Cu > Ni > Zn. Three main indoor dust sources were identified, with a Pb–Zn–As factor related to legacy Pb sources, a Zn–Cu factor reflecting building materials, and a Mn factor indicative of natural soil sources. Increasing home age was associated with greater Pb and As concentrations (5.0 and 0.48 mg/kg per year of home age, respectively), as were peeling paint and garden access. Therefore, these factors form important considerations for the development of evidence-based management strategies to reduce potential risks posed by indoor house dust. Recent findings indicate neurocognitive effects from low concentrations of metal exposures; hence, an understanding of the home exposome is vital.
| Item Type: | Article |
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| Additional Information: | Funding information: This study is an output from the project “DustSafe: Citizen insights to the composition and risks of household dust”, which was funded by an Australian Government Citizen Science Grant, CSG55984 to M.P.T. This work was partially supported by the Environmental Resilience Institute, funded by Indiana University’s Prepared for Environmental Change Grand Challenge Initiative, and by the National Science Foundation award ICER-1701132 (the USA) to G.M.F.; the Natural Environment Research Council (Research Grant NE/T004401/1, U.K.) to J.E.; the Royal Society of Chemistry Developing World Scholarship Scheme (ACTF19/600504/11, Nigeria) to A.F.; National Natural Science Foundation of China (No. 41703094) to L.W., and funding for K.J.’s Ph.D. research programme (the U.K.) from Northumbria University. C.M.A. was funded on a Fulbright Global Scholar Award (8467-MC) by the J. William Fulbright Foreign Scholarship Board. The work presented in this paper was in part supported by the NERC grant NE/T004401/1. |
| Uncontrolled Keywords: | modeling, enrichment, sources, lead, human health risk, homes, trace metals, dust |
| Subjects: | F800 Physical and Terrestrial Geographical and Environmental Sciences |
| Department: | Faculties > Engineering and Environment > Geography and Environmental Sciences |
| Depositing User: | Rachel Branson |
| Date Deposited: | 05 Jan 2022 14:31 |
| Last Modified: | 24 Jan 2022 16:15 |
| URI: | http://nrl.northumbria.ac.uk/id/eprint/48079 |
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