Characterization of urinary concentrations of heavy metals among socioeconomically disadvantaged black pregnant women

The objective of this study was to characterize exposures to metals using biological samples collected on socioeconomically disadvantaged black pregnant women. We obtained 131 anonymous urine samples provided by black pregnant women visiting a Medicaid-serving prenatal clinic in Houston, TX, from Ma...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2020-03, Vol.192 (3), p.200, Article 200
Main Authors: Han, Inkyu, Whitworth, Kristina W., Zhang, Xueying, Afshar, Masoud, Berens, Pamela D., Symanski, Elaine
Format: Article
Language:English
Subjects:
Adult
Aluminium
Aluminum
Antimony
Arsenic
Arsenic - urine
Atmospheric Protection/Air Quality Control/Air Pollution
Biological properties
Biological samples
Cadmium
Cadmium - urine
Cohorts
Cotinine
Creatinine
Earth and Environmental Science
Ecology
Ecotoxicology
Environment
Environmental Management
Environmental Monitoring
Environmental science
Factor analysis
Female
Heavy metals
Home environment
Humans
Lead
Metal concentrations
Metals
Metals, Heavy - urine
Monitoring/Environmental Analysis
Nickel
Pregnancy
Pregnant Women
Selenium
Socioeconomic Factors
Texas
Vulnerable Populations
Women
Zinc
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Summary:The objective of this study was to characterize exposures to metals using biological samples collected on socioeconomically disadvantaged black pregnant women. We obtained 131 anonymous urine samples provided by black pregnant women visiting a Medicaid-serving prenatal clinic in Houston, TX, from March 27, 2017 to April 11, 2017. We analyzed urine samples for 15 metals including cadmium (Cd), arsenic (As), lead (Pb), and nickel (Ni) and for creatinine and cotinine. We found that median concentrations of zinc (Zn), selenium (Se), and aluminum (Al) among black pregnant women in this study were 1.5 to 3 times higher than levels reported among a cohort of well-educated non-Hispanic white pregnancy planners. We also observed elevated levels of urinary Cd and antimony (Sb) as compared with those reported for a nationally representative sample of adult women in the USA. Based on the results of an exploratory factor analysis, potential sources of metal exposures in this population may arise in home environments or be due to diet, industrial and natural sources, or traffic.
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-020-8163-z