Pesticides black women health — Black and Mexican American women carry higher levels of pesticide residues in their bodies than white women for 10 of 14 chemicals studied in CDC biomonitoring data, and the health consequences include hormone disruption, higher fibroid rates, and elevated breast and reproductive cancer risk.
Toxic Overload Series · Part 3 of 4
When we talk about pesticide exposure, most people picture farm fields. What the research actually shows is something different — and more personal.
Pesticides are in the food you eat, the water that runs through older pipes, the dust on the floors of homes treated by pest control, the air near urban green spaces sprayed in summer, the soil in community gardens built on land with a history of industrial use. They do not stay outside. They come in on shoes, in produce, in packaging. They accumulate in body fat. They pass through the placenta. And the data is clear: Black and Mexican American women carry higher levels of these chemicals in their bodies than white women — not because of individual choices, but because of where they live, where they work, and which products are marketed to them.
This post covers which pesticides are most documented in these disparities, what they do to your hormones and your reproductive system, and what you can do to reduce your exposure within the constraints of your actual life.
Pesticides Black Women Health: What the Body Burden Data Shows
In CDC national biomonitoring data collected from 1999 to 2016, non-Hispanic Black people had higher average pesticide levels in blood and urine than the total population for 10 out of 14 pesticides or metabolites studied. Non-Hispanic white individuals exceeded the population average for only 3 of 14. The disparity held even when income was controlled for — meaning higher-income Black households still had higher exposure than lower-income white households.
This pattern is not a coincidence. It is the result of where pesticide use is concentrated, where public housing is located, who does agricultural work, and which pest control products are marketed and applied in Black and Latino neighborhoods at higher rates than in white neighborhoods.
In California — the most pesticide-intensive state in the country — almost all pesticide use occurs in the 60% of zip codes with the highest share of people of color. Pesticide use showed the largest racial and ethnic disparities of any pollution burden the state’s EPA studied. Over half of all glyphosate applied in California was sprayed in the eight most impoverished counties, where the Hispanic and Latinx population was 53%, compared to a 38% state average.
In Boston public housing, where 98% of residents were Hispanic or Black, dust samples from all 42 units tested contained at least two pesticides. In New York City public housing, one-third of residents reported applying pesticides inside their apartments at least once a week — because pest infestations in deteriorating housing require constant management, and residents are left to manage it themselves.
How Pesticides Disrupt Hormones
The mechanism that connects pesticides to fibroids and reproductive cancers is endocrine disruption — the ability of synthetic chemicals to interfere with the body’s hormonal signaling system.
Your endocrine system communicates through hormones — molecules that carry instructions to cells throughout your body. Estrogen, progesterone, testosterone, thyroid hormones, cortisol — these are all part of an extraordinarily precise signaling network. Endocrine-disrupting chemicals (EDCs) interfere with that network in three main ways: they can mimic hormones (binding to receptors and triggering responses the body didn’t intend), block hormones (occupying receptors without activating them, preventing the real hormone from doing its job), or alter how your body produces, processes, and eliminates its own hormones.
Many widely used pesticides are endocrine disruptors. Some, like the organochlorines, mimic estrogen. Others, like certain organophosphates, alter thyroid function. The effects compound over time with cumulative exposure — meaning years of low-level exposure can produce significant hormonal disruption even when no single exposure event was acutely toxic.
The Pesticides Most Documented in These Disparities
Organochlorine Pesticides (DDT, Chlordane, Dieldrin metabolites)
Found in: Body fat, blood, cord blood; persist decades after use; metabolites higher in Mexican American and African American women over 40
Although DDT and most organochlorines were banned in the U.S. decades ago, they persist in soil, water, and body fat for generations — a property called bioaccumulation. They are classified as estrogen-mimicking compounds. In CDC biomonitoring data, legacy organochlorine metabolites are measurably higher in Mexican American and African American women over 40 than in white women. Multiple studies have found associations between organochlorine exposure and breast cancer risk, with some showing stronger associations in Black women. In New York City, cord plasma organochlorine levels were negatively associated with fetal growth, suggesting in utero effects that may shape reproductive health outcomes decades later.
Organophosphates (Chlorpyrifos, Malathion)
Found in: Produce (especially non-organic apples, grapes, strawberries), indoor pest control products, tap water near agricultural areas
Organophosphates are among the most widely used pesticide class in the United States, and their costs and disease burden fall disproportionately on non-Hispanic Black and Mexican American people, according to CDC biomonitoring analysis. Organophosphate metabolites were found to be more strongly associated with lower birth weight in Black newborns than white newborns in a Cincinnati study. In California, pooled cohort analyses found stronger negative associations between organophosphate exposure and neurological and reproductive outcomes in Black and Hispanic groups than in white groups. Chlorpyrifos in particular is associated with hormonal interference and has been linked to endocrine disruption in multiple studies.
Glyphosate
Found in: Non-organic oats, wheat, beans, corn products; urban parks and green spaces; residential weed killers
Glyphosate is the active ingredient in Roundup and the most widely used herbicide in the world. Over half of California’s glyphosate was applied in the eight most impoverished counties — which are disproportionately Black and Latino. Research on glyphosate’s endocrine-disrupting properties is ongoing, with multiple studies finding effects on estrogen and androgen signaling pathways. The International Agency for Research on Cancer (IARC) classified glyphosate as “probably carcinogenic to humans” in 2015. Exposure is primarily through food — it is found in measurable levels in many non-organic staple foods including oatmeal, crackers, and cereals.
Atrazine
Found in: Tap water in agricultural areas, particularly the Midwest corn belt; runoff into urban water systems
Atrazine is one of the most commonly detected pesticides in U.S. water supplies. It is an endocrine disruptor with documented effects on the hypothalamic-pituitary-gonadal (HPG) axis — the system that regulates female reproductive hormones. Research has found atrazine affects estrogen metabolism and steroidogenic pathways, with relevance to breast, ovarian, and uterine cancer risk. It has been banned in the European Union since 2004, but remains legal and widely used in the United States, with higher tap water exposure in lower-income communities that rely on municipal water from agricultural watersheds.
Pyrethroids
Found in: Indoor pest control sprays, flea and tick products, mosquito abatement sprays in urban areas
Pyrethroids are the active compounds in most common household insecticides and indoor pest control treatments. They are applied more heavily in urban public housing and lower-income residential areas. CDC biomonitoring data documents higher pyrethroid levels in Black and Mexican American populations. Pyrethroids have documented endocrine-disrupting properties and have been associated with altered hormone levels in several human biomonitoring studies.
What This Means for Fibroids
Uterine fibroids are the most common gynecological condition in women, with ultrasound studies estimating that more than 70% of women develop them by age 50. But the disparity for Black women is stark: Black women are diagnosed with fibroids two to three times as often as white women, tend to develop them at a younger age, and experience more severe symptoms.
The research connecting environmental chemical exposure to fibroids is growing. Springer Nature’s fibroid disparity research roundup notes that Black women are “documented to have increased exposure to endocrine-disrupting chemicals compared to other ethnic groups,” and that evidence linking EDC exposure to fibroid development is accumulating. Named chemicals include phthalates in personal care products, bisphenol A, and parabens — but the same class of estrogen-mimicking disruption applies to many organochlorine and organophosphate pesticides.
Fibroids are estrogen-sensitive tumors — they grow in response to estrogen and shrink after menopause when estrogen levels drop. Anything that mimics estrogen, elevates estrogen levels, or disrupts the body’s ability to metabolize and clear estrogen creates a biological environment that favors fibroid growth. Decades of higher body burden from estrogen-mimicking pesticides is a plausible — and increasingly researched — contributor to the fibroid disparity.
A 2023 study published in BMC Public Health examined combined exposure to organochlorine pesticides and history of uterine fibroids using NHANES data, finding a statistically significant association across multiple analytical models.
What This Means for Cancer Risk
The cancer connections are documented through multiple pathways:
- Breast cancer: Multiple studies have found associations between organochlorine exposure and breast cancer, with several specifically in African American women. A case-control study of serum organochlorines and breast cancer in African American women found associations between legacy pesticide metabolites and breast cancer risk. Pesticide levels in non-Hispanic Black women have been specifically linked to breast cancer-associated biological activity in biomonitoring research.
- Ovarian and uterine cancer: Atrazine has documented effects on the hormonal pathways relevant to ovarian and uterine cancer. Chlorinated pesticides show a stronger association with type 2 diabetes in people who do not identify as white — and diabetes is itself a risk factor for uterine cancer.
- Endocrine pathway cancers broadly: The Endocrine Society’s 2024 EDC report documents the growing evidence connecting endocrine-disrupting chemicals — including pesticide classes — to hormone-sensitive cancers, with calls for stronger regulatory action.
Reducing Your Exposure
Full elimination is not realistic, and that is not the goal here. Meaningful reduction is. These are the interventions with the most evidence behind them:
What You Can Do
- Prioritize the EWG Dirty Dozen for organic purchasing. If you can only afford organic for a few items, the Environmental Working Group’s annual Dirty Dozen list identifies the 12 conventionally grown produce items with the highest pesticide residues — strawberries, spinach, kale, peaches, pears, nectarines, apples, grapes, bell peppers, cherries, blueberries, and green beans consistently appear. Buying organic for just these items significantly reduces dietary pesticide load. The EWG Clean Fifteen list identifies the 15 with the lowest residues — safe to buy conventional.
- Wash all produce, organic or not. Running produce under tap water for 30–60 seconds removes a meaningful portion of surface pesticide residues. Scrubbing firm-skinned produce with a brush is more effective. A 2017 UMass Amherst study found a baking soda solution (1 tsp per 2 cups water, soak 12-15 minutes) removed more surface residues than tap water alone. This does not address systemic pesticides absorbed into the flesh of the fruit or vegetable, but it addresses surface residue effectively.
- Filter your tap water. A certified water filter rated for pesticide removal (look for NSF/ANSI Standard 53 or 58 certification) reduces atrazine and organochlorine residues in tap water. Pitcher-style filters (Brita, PUR, ZeroWater) vary in their pesticide removal efficiency — check the specific certification, not just the brand.
- Reduce indoor pesticide use where possible. Integrated Pest Management (IPM) approaches — sealing entry points, addressing moisture, using bait stations rather than spray — significantly reduce indoor pesticide load compared to regular spray treatments. If you are in a rental or public housing where pest control is managed by the landlord, you have the right to request notification before treatments and, in many jurisdictions, the right to request IPM approaches.
- Request non-spray pest control as a tenant. Many public housing authorities now have IPM policies as an option. Request it in writing. Document the request. This is a health advocacy step you can take now.
- Choose fragrance-free cleaning and pest control products. Many conventional household cleaners and pest control products contain pesticide-adjacent compounds. Fragrance-free and plant-based alternatives reduce the total chemical load in your home environment without requiring expensive overhauls.
The Bigger Picture
The data on pesticide body burden disparities is not a reason to feel defeated. It is a reason to be angry — at the regulatory system that has allowed this to happen — and informed, so you can make the changes that are within reach while advocating for the systemic changes that are not yet.
The Endocrine Society, the EPA’s own Office of Environmental Justice, the Pesticide Action Network, and the Brookings Institution have all documented these disparities and called for regulatory reform. Organizations like the Pesticide Action Network and the Center for Biological Diversity actively work on policy change at the federal and state level. These are places where your voice, your story, and your advocacy matter.
Your body has been carrying a burden it was never asked to carry. Naming that burden — clearly, with the research behind it — is the first step toward putting it down.
Toxic Overload Series
- · Part 1: Harmful Ingredients in Ultra-Processed Foods Black Women Should Know
- · Part 2: Food Deserts and Black Women’s Health: What the Research Shows
- → Part 3: Pesticides and Black Women’s Health: Hormones, Fibroids, and Cancer Risk (this post)
- · Part 4: Toxic Chemicals in Beauty Products Targeting Black Women
Take This Further
Understanding your chemical exposures is one piece. Connecting them to your labs, your symptoms, and your history is another. A strategy session with Nellie W.K., MSN, AGACNP-BC does that work with you.
Sources & Further Reading
Brookings Institution. U.S. Pesticide Regulation Is Failing the Hardest-Hit Communities. brookings.edu
Guo W et al. Association Between Combined Exposure to Organochlorine Pesticides and History of Uterine Fibroids in NHANES. BMC Public Health. 2025. link.springer.com
Shamasunder B et al. Pesticide Exposures and Environmental Injustice. International Journal of Environmental Research and Public Health. 2022. pmc.ncbi.nlm.nih.gov
Springer Nature. Fibroids: The Research Behind the Disparity. 2025. communities.springernature.com
Gore AC et al. Endocrine-Disrupting Chemicals: An Endocrine Society Scientific Statement. 2024. endocrine.org
NIEHS. Study of Environment, Lifestyle & Fibroids (SELF). niehs.nih.gov
Merhi ZO et al. Serum Organochlorines and Breast Cancer: A Case-Control Study Among African-American Women. Cancer Causes & Control. 2007. link.springer.com
Beyond Pesticides. Pesticide-Induced Diseases: Endocrine Disruption. beyondpesticides.org
Center for Biological Diversity. Pesticides and Environmental Justice. biologicaldiversity.org



