Evidence map›Paper›PMID 38963987›Full record

ArticleEnvironment international2024

Tampons as a source of exposure to metal(loid)s.

Jenni A Shearston, Kristen Upson, Milo Gordon, Vivian Do, Olgica Balac, Khue Nguyen, Beizhan Yan, Marianthi-Anna Kioumourtzoglou, Kathrin Schilling

Abstract read
In one paragraph

Article in Environment international, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

  1. Article
  2. Microplastics in the Female Genital Tract and Fetoplacental Continuum: A Lesion-Based Framework for Pathophysiological Interpretation.Pathophysiology : the official journal of the International Society for Pathophysiology · 2026
    Review
  3. Article
  4. Estrogenic activity in tampon products.Journal of the Endocrine Society · 2026
    Article
  5. Integrating experimental data and mechanistic modeling to assess potential lead exposure from tampon use.Toxicological sciences : an official journal of the Society of Toxicology · 2026
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Heavy metal contamination in tampons: A hidden public health concern.Environmental analysis, health and toxicology · 2025
    Article
  11. ACMT Position Statement: No Evidence that Tampons Cause Metal Poisoning.Journal of medical toxicology : official journal of the American College of Medical Toxicology · 2025
    Article
  12. Influence of cervicovaginal microbiota onMicrobial cell (Graz, Austria) · 2025
    Review
  13. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Jenni A ShearstonDepartment of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA; Department of Environmental Science, Policy, & Management and the School of Public Health, University of California Berkeley, Berkeley, CA, USA. Electronic address: jshearston@berkeley.edu.
Kristen UpsonDepartment of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing, MI, USA.
Milo GordonDepartment of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.
Vivian DoDepartment of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.
Olgica BalacDepartment of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.
Khue NguyenLamont-Doherty Earth Observatory of Columbia University, Palisades, NY, USA.
Beizhan YanLamont-Doherty Earth Observatory of Columbia University, Palisades, NY, USA.
Marianthi-Anna KioumourtzoglouDepartment of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.
Kathrin SchillingDepartment of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.

Funding

True Metal fac coreP30ES009089 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MATTHEW S PERZANOWSKI · 1998 to 2026
$44.7M
Supplemental Training in Making Data FAIR and AI/ML ReadyT32ES007322 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Pam R Factor-Litvak, Allison Kupsco · 2000 to 2026
$12.1M
Research Experience and Training Coordination CoreP42ES033719 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Ana Navas-Acien · 2022 to 2026
$11.9M
Influence of Diet, Iron Stores, and Toxic Metals on Uptakes and Effects on Uterine Fibroid Risk in African American WomenR00NR017191 · NINR · MICHIGAN STATE UNIVERSITY · PI UPSON, KRISTEN · 2019 to 2021
$740k
Impact of COVID-19 related stay-at-home orders on traffic, traffic-related air pollution, and cardiovascular health in New York CityF31ES033098 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI SHEARSTON, JENNI · 2021 to 2022
$63k
The effects of power outages on cardiovascular outcomes in New York StateF31HL172608 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI DO, VIVIAN · 2024 to 2025
$59k
NHLBI NIH HHS F31 HL172608NIEHS NIH HHS F31 ES033098NIEHS NIH HHS P30 ES009089NIEHS NIH HHS P42 ES033719NIEHS NIH HHS T32 ES007322NINR NIH HHS K99 NR017191NINR NIH HHS R00 NR017191
6 · The paper itself

Abstract

backgroundBetween 52-86% of people who menstruate in the United States use tampons-cotton and/or rayon/viscose 'plugs'-to absorb menstrual blood in the vagina. Tampons may contain metals from agricultural or manufacturing processes, which could be absorbed by the vagina's highly absorptive tissue, resulting in systemic exposure. To our knowledge, no previous studies have measured metals in tampons.

objectivesWe evaluated the concentrations of 16 metal(loid)s in 30 tampons from 14 tampon brands and 18 product lines and compared the concentrations by tampon characteristics.

methodsAbout 0.2 - 0.3 g from each tampon (n = 60 samples) were microwave-acid digested and analyzed by inductively coupled plasma mass spectrometry (ICP-MS) to determine concentrations of arsenic, barium, calcium, cadmium, cobalt, chromium, copper, iron, manganese, mercury, nickel, lead, selenium, strontium, vanadium, and zinc. We compared concentrations by several tampon characteristics (region of purchase, organic material, brand type) using median quantile mixed models.

resultsWe found measurable concentrations of all 16 metals assessed. We detected concentrations of several toxic metals, including elevated mean concentrations of lead (geometric mean [GM] = 120 ng/g), cadmium (GM = 6.74 ng/g), and arsenic (GM = 2.56 ng/g). Metal concentrations differed by region of tampon purchase (US versus European Union/United Kingdom), by organic versus non-organic material, and for store- versus name-brand tampons. Most metals differed by organic status; lead concentrations were higher in non-organic tampons while arsenic was higher in organic tampons. No categoriy had consistently lower concentrations of all or most metals. DISCUSSION: Tampon use is a potential source of metal exposure. We detected all 16 metals in at least one sampled tampon, including some toxic metals like lead that has no "safe" exposure level. Future research is needed to replicate our findings and determine whether metals can leach out of tampons and cross the vaginal epithelium into systemic circulation.

Indexed as

Menstrual Hygiene ProductsMetalsEnvironmental ExposureFemaleHumansMetals, HeavyUnited StatesMetalsMetals, HeavyEnvironmental ExposureMenstrual Hygiene ProductsMenstruationMetalsVaginal Absorption

Identifiers

PMID38963987
PMCPMC11913127

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.