The most common construction material used in Taiwan is concrete, potentially contaminated by geologic heavy metals (HMs). Younger children spend much time indoors, increasing HM exposure risks from household dust owing to their behaviors. We evaluated arsenic (As), cadmium (Cd), and lead (Pb) concentrations in fingernails among 280 preschoolers between 2017 and 2023. We also analyzed HM concentrations, including As, Cd, Pb, chromium (Cr), nickel (Ni), copper (Cu), zinc (Zn), iron (Fe), and manganese (Mn), in 90 household dust and 50 road dust samples from a residential area where children lived between 2019 and 2021 to deepen the understanding of sources and health risks of exposure to HMs from household dust. The average As, Cd, and Pb concentrations in fingernails were 0.12 ± 0.06, 0.05 ± 0.05, and 0.95 ± 0.77 μg/g, respectively. Soil parent materials, indoor construction activities, vehicle emissions, and mixed indoor combustion were the pollution sources of HMs in household dust. Higher Cr and Pb levels in household dust may pose non-carcinogenic risks to preschoolers. Addressing indoor construction and soil parent materials sources is vital for children's health. The finding of the present survey can be used for indoor environmental management to reduce the risks of HM exposure and avoid potential adverse health effects for younger children.
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http://dx.doi.org/10.1016/j.jenvman.2024.120015 | DOI Listing |
Front Cell Infect Microbiol
December 2024
RECETOX, Faculty of Science, Masaryk University, Brno, Czechia.
The antibiotic resistance genes (ARGs) limit the susceptibility of bacteria to antimicrobials, representing a problem of high importance. Current research on the presence of ARGs in microorganisms focuses mainly on humans, livestock, hospitals, or wastewater. However, the spectrum of ARGs in the dust resistome in workplaces and households has gone relatively unexplored.
View Article and Find Full Text PDFChemosphere
December 2024
School of Environmental Sciences, Mahatma Gandhi University (MGU), Kottayam, 686560, Kerala, India; Inter University Instrumentation Centre (IUIC), Mahatma Gandhi University (MGU), Kottayam, 686560, Kerala, India; International Centre for Polar Studies, Mahatma Gandhi University (MGU), Kottayam, 686560, Kerala, India. Electronic address:
Environ Int
December 2024
U.S Environmental Protection Agency, Office of Research and Development, Center for Public Health and Environmental Assessment, 109 TW Alexander Dr., Research Triangle Park, NC 27711, USA.
Sci Rep
December 2024
Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, Republic of Korea.
Intratracheal instillation (ITI) is considered the most pragmatic approach for investigating the potential toxicities of various respiratory exposure materials. Various respiratory exposure materials, including nanomaterials, hazardous air pollutants, fine dust, and household biocides, have raised public health concerns because of limited toxicological information and increasing consumption. Hence, toxicity studies using ITI in laboratory animals are important to accurately assess the human risks associated with these respiratory-exposed materials.
View Article and Find Full Text PDFMycoKeys
November 2024
Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, The Czech Academy of Sciences, 142 20 Prague 4, Czech Republic Institute of Microbiology, The Czech Academy of Sciences Prague Czech Republic.
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