Heavy metals in indoor dust: Spatial distribution, influencing factors, and potential health risks

Shi, Taoran; Wang, Yuheng

doi:10.1016/j.scitotenv.2020.142367

Cited by 75 publications

(45 citation statements)

References 149 publications

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“…While broadscale studies have been conducted in single countries such as the United Kingdom (n = 5228 samples analyzed for Pb in predominately metal/mining communities 24 ); Canada (n = 1025 25 ); Germany (3282 samples over 7 years 26 ) and China (n = 122, 27 381 households 28 ), these have been researcher-led as compared to community science. Shi and Wang 11 compared international indoor dust studies, yet their analysis was limited due to different methodologies and analytes between individual reports.…”

Section: Introductionmentioning

confidence: 99%

International Analysis of Sources and Human Health Risk Associated with Trace Metal Contaminants in Residential Indoor Dust

Isley

Fry

Liu

et al. 2021

Environ. Sci. Technol.

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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.

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Section: Introductionmentioning

confidence: 99%

International Analysis of Sources and Human Health Risk Associated with Trace Metal Contaminants in Residential Indoor Dust

Isley

Fry

Liu

et al. 2021

Environ. Sci. Technol.

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“…Health risks of heavy metals in urban soils (Luo et al 2011), e-waste recycling (Lau et al 2014), and indoor dust (Shi and Wang 2020) via different exposure routes (e.g., dermal contact, ingestion) have been assessed. Health risks associated with inhalation exposure to heavy metals in indoor and ambient air have also been reported (Hieu and Lee 2010;Huang et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Health risks of adults in Hong Kong related to inhalation of particle-bound heavy metal(loid)s

Chen

Ward

Sarkar

et al. 2022

Air Qual Atmos Health

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Heterogeneity between ambient and personal exposure to heavy metals has been documented. However, few studies have investigated potential health risks posed by inhalational exposure to airborne heavy metal(loid)s at the individual level. A total of 404 personal fine particles (PM2.5) samples were collected from 61 adult residents (aged 18–63 years) in Hong Kong during 2014–2015. Heavy metal(loid)s were analyzed using energy dispersive X-ray fluorescence. Among the analyzed heavy metal(loid)s, zinc (Zn) was the most abundant component in personal PM2.5, followed by lead (Pb), copper (Cu), and vanadium (V); cobalt (Co) and cadmium (Cd) were not detectable. Health risks of personal exposure to heavy metal(loid)s via inhalation were assessed for adults, including non-cancer risks that were characterized by hazard quotient (HQ) and hazard index (HI). The results indicated that non-cancer risks of heavy metal(loid)s were attributable to Cu, with a 95th HQ value > 1. Arsenic (As) and hexavalent chromium [Cr (VI)] were also significant contributors to inhalation cancer risks (> 1 × 10−6) for the adult participants. Finally, we employed a Monte Carlo simulation to evaluate the uncertainty associated with health risk assessment. The mean and median upper-bound lifetime cancer risk associated with inhalation exposure to carcinogenic heavy metal(loid)s exceeded the acceptable level (1 × 10−6) for adults. Traffic emission (including non-tailpipe exhaust), shipping emission, and regional pollution were significant sources of heavy metals. These findings suggest that emission controls targeting local vehicles and vessels should be given priority in Hong Kong.

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“…Today, urban people spend more than 90% of their time indoors-at home, in schools, offices etc. [4]. Furthermore, indoor dust contains suspended particles from internal origins such as smoking, cooking, fuel combustion and decorative material (e.g., paints, carpets, furniture etc.)…”

Section: Introductionmentioning

confidence: 99%

Automated Robotic System for Sample Preparation and Measurement of Heavy Metals in Indoor Dust Using Inductively Coupled Plasma Mass Spectrometry (ICP-MS)

Fleischer¹,

Statkevych²,

Widmer³

et al. 2022

Adv. sci. technol. eng. syst. j.

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Dust is ubiquitous in our daily environment-outdoor and indoor. In modern times, people often spend the majority of their time at home, in offices, at work or in schools. Suspended particles such as tiny crumbs up to long fibers generate indoor dust deposits. Inhouse sources are the interior releasing abraded fibers from carpets, bedding and clothing as well as the human itself distributing skin cells, lost hairs and food residues. External sources are finest sand, pollen, exhaust particles and microorganisms (e.g., dust mites). An exposure to heavy metals in certain concentrations may affect the human health and may lead to intoxication, allergies or carcinogenic effects. The heavy metals amount in indoor dust depends on the environmental conditions, requiring a sampling with adequate sampling points and numbers. High sampling numbers ensure good coverage of the area to be examined. Therefore, fast and reliable measurement methods for identification and quantification of the elemental composition are needed. To meet these requirements, a robotic system for automated sample preparation and determination of heavy metals in indoor dust using ICP-MS was developed. The values for repeatability, recovery rate, withinlaboratory precision, measurement precision and the limits of detection and quantification were determined for both, the manual and the automated process. Furthermore, the individual process steps and times were compared. Besides the processing of certified reference material, inhouse dust samples from different origin were prepared and measured to give a first overview of the inhouse dust composition. The results show, that the robotassisted system is well-suited for the heavy metal screening in indoor dust.

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Heavy metals in indoor dust: Spatial distribution, influencing factors, and potential health risks

Cited by 75 publications

References 149 publications

International Analysis of Sources and Human Health Risk Associated with Trace Metal Contaminants in Residential Indoor Dust

International Analysis of Sources and Human Health Risk Associated with Trace Metal Contaminants in Residential Indoor Dust

Health risks of adults in Hong Kong related to inhalation of particle-bound heavy metal(loid)s

Automated Robotic System for Sample Preparation and Measurement of Heavy Metals in Indoor Dust Using Inductively Coupled Plasma Mass Spectrometry (ICP-MS)

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