ArticleInternational journal of hygiene and environmental health2021
Elevated blood lead and metal/metalloid levels and environmental exposure sources in urban Ecuadorian school-age children and mothers.
Article in International journal of hygiene and environmental health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The trial behind it
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Who cites it
7 citing papers in PubMed, 22 citations in OpenAlex.
- The use of leaded paints in an urban neighborhood in Quito, Ecuador: A case study.Scientific reports · 2026Article
- Health Risk Assessment of Metal(loid) Contamination in Raw Cow's Milk from the Colombian Caribbean Region.Biological trace element research · 2026Article
- Lead Poisoning in the Americas: Sources, Regulations, Health Impacts, and Molecular Mechanisms.Journal of xenobiotics · 2025Review
- Association of combined lead, cadmium, and mercury with systemic inflammation.Frontiers in public health · 2024Article
- Association of household food insecurity with developmental delay in preschool children: 2018 Ecuadorian Nutrition and Health National Survey.Journal of nutritional science · 2023Article
- Metal Exposures, Noise Exposures, and Audiometry from E-Waste Workers in Agbogbloshie, Ghana.International journal of environmental research and public health · 2021Article
- Is Time Spent Outside the Family Home a Risk Factor for Lead Exposure in Pre-School Children Living in Broken Hill?International journal of environmental research and public health · 2021Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundLead and other toxic and potentially toxic metals and metalloids are significant contributors to the global burden of disease and disability. Studies characterizing blood metal/metalloid levels and potential sources of environmental exposures are limited for populations living in the major urban centers of Andean-area countries.
methodsWe used ICP-MS to quantify blood levels of lead (PbB), cadmium (CdB), manganese (MnB), total arsenic (AsB), and total mercury (HgB) in school-age children (n = 47) and their reproductive-age mothers (n = 49) from low-resource households in Quito, Ecuador. These were compared to published 95th percentile reference values (RV
resultsForty-five percent of the mothers had PbBs ≥ 5 μg/dL; 14.3% had PbBs ≥10 μg/dL. Maternal blood levels exceeded RV
conclusionsThe elevated blood levels of PbB, other metal/metalloids, and metal/metalloid mixtures identified mothers and children in this exploratory study is an urgent public health and clinical concern. The exposure patterns suggest that traffic-related exposures, especially the resuspension of legacy Pb in dust, as well as other anthropogenic and geogenic sources may be important environmental contributors to metal/metalloid exposures in urban Ecuadorian mothers and children. Future studies are needed to confirm these findings and explore other potential exposure sources. Biomonitoring is also needed in order to formulate effective intervention strategies to reduce population exposure to toxic levels of environmental metals/metalloids.
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