Background: Emerging organic contaminants are increasingly present in the environment, with several pollution sources. Soil and household dust are critical pathways for human exposure, posing significant health risks, especially for vulnerable children.
Objective: The objective of this study was to identify and characterize the presence of emerging contaminants in soil and house dust samples in Miami-Dade and Broward counties, Florida, evaluating how seasonal, socioeconomic, and geographic factors influence the distribution of these pollutants.
Methods: Soil and house dust samples were collected from 49 families twice a year between May 2022 and February 2024. Samples were processed by accelerated solvent extraction (ASE) and analyzed by liquid chromatography-high-resolution mass spectrometry (LC-HRMS). Chemical identification was performed using Compound Discoverer software.
Results: The predominant compounds in soil were personal care products (PCP)/surfactants, industrial products, and pesticides in the dry season, while pharmaceuticals were found in higher abundance in the rainy season. The most abundant compounds in household dust were pharmaceuticals, industrial products and PCP/surfactants in the dry season, while pesticides stood out in the rainy season. Geographically, the central Miami region presented a wider diversity of contaminants in dust and more PCP/surfactants in soil, while the northern region presented greater contamination by pharmaceuticals and industrial products in soil and more surfactants in dust. Overall, lower-income regions showed greater diversity and abundance of pollutants in dust and soil.
Conclusion: These results suggest that the distribution of organic pollutants in soil and house dust is influenced by seasonal, socioeconomic, and geographic factors. These differences highlight the need for adaptive environmental policies and integrated strategies to mitigate the risks associated with exposure to these pollutants in urban environments, protecting public health.
Highlights: Seasonal variations significantly influence the distribution of emerging contaminants in soil and household dust. Socioeconomic and geographic factors contribute to distinct contamination patterns across Miami-Dade and Broward.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/jaoacint/qsaf012 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Single Multiplex CytoBas Assay Incorporating Eight Major Components for Accurate Detection of Allergen Sensitization in Asthma and Allergic Rhinitis.
Allergy
March 2025
Department of Immunology, School of Translational Medicine, Monash University, Melbourne, Victoria, Australia.
Background: Allergic rhinitis and asthma can be triggered by a variety of aeroallergens, including house dust mites (HDM), tree and grass pollen, and household pets. Identification of the relevant allergen is critical for lifestyle changes and treatments, including allergen immunotherapy. We here assessed the diagnostic performance and clinical utility of a single flow cytometry staining of basophils with major aeroallergen components (AeroDiff CytoBas).
View Article and Find Full Text PDFDirt floors and domestic animals are associated with soilborne exposure to antimicrobial resistant in rural Bangladeshi households.
bioRxiv
February 2025
Department of Epidemiology and Population Health, Stanford University.
Soil can harbor enteropathogens and antimicrobial-resistant organisms in settings with domestic animals. We enrolled 49 households with young children (28 soil floors, 21 concrete floors) in Bangladesh and recorded animal ownership/management. Staff swabbed the floor of children's sleeping area with a sterile sponge and collected floor dust and a child hand rinse.
View Article and Find Full Text PDFMonitoring Emerging Contaminants in Soil and Household Dust Samples by Non-Targeted Analysis in the Greater Miami Area, Florida.
J AOAC Int
February 2025
Institute of Environment, Florida International University, Miami, FL, USA.
Background: Emerging organic contaminants are increasingly present in the environment, with several pollution sources. Soil and household dust are critical pathways for human exposure, posing significant health risks, especially for vulnerable children.
Objective: The objective of this study was to identify and characterize the presence of emerging contaminants in soil and house dust samples in Miami-Dade and Broward counties, Florida, evaluating how seasonal, socioeconomic, and geographic factors influence the distribution of these pollutants.
Lead source apportionment and climatic impacts in rural environmental justice mining communities.
Environ Res
April 2025
Department of Environmental Science, College of Agriculture and Life Sciences, University of Arizona, Tucson, AZ, USA; Division of Community, Environment & Policy, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ, USA. Electronic address:
After a sequence of natural disasters in Gila County, Arizona, USA environmental justice (EJ), mining areas, community members raised concerns about metal(loid)s exposure and origin. To address these concerns, non-residential sediments (0-2 cm, 2-15 cm, and 15-30 cm), household soil (0-2 cm), and indoor and outdoor dust samples were analyzed for metal(loid)s concentration and Pb isotopes via inductively coupled plasma mass spectrometry. To identify the potential sources of Pb, 37 studies were considered, and 21 different Pb isotopic ratios were documented and compared.
View Article and Find Full Text PDFMass and particle size distribution of household dust on children's hands.
J Expo Sci Environ Epidemiol
February 2025
Department of Built Environment, North Carolina Agricultural and Technical State University, Greensboro, NC, USA.
Background: Children are vulnerable to household dust exposure; however, to date, a handful of studies simultaneously report both the mass and particle size of household dust found on children's hands after natural indoor play activities.
Objective: Evaluate a new approach to measure dust loading and characterize particle size on a child's hands using a Coulter Counter.
Methods: The volume of particles rinsed off children's hands was measured through counting and sizing particles (using a Coulter Counter), followed by multiplying the particle volume by the density of dust collected from the home.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!