By Dawn Attride
This story was originally published by Sentient.
In Duplin County, North Carolina, there is a pollutant that hangs in the air, the water and the soil. It tumbles in the breeze and into homes through open windows, settling as a thin film of dust on their kitchen tables. It gloops together in masses of sludge in the surface water that feeds their creeks and streams. The fresh, nostalgic smell of seawater along the county coast has dissipated, replaced by a permanent foul smell from nearby swine factory farms, similar to that of a decomposing body, residents say. Policymakers have long ignored their complaints but new research from Johns Hopkins University publishing soon could finally show scientific evidence of pollution that officials can’t ignore.
It wasn’t always this way, says Devon Hall, who grew up in Duplin County. Over the past few decades, Hall tells Sentient that he has witnessed the rapid expansion of swine factory farms in the region. Now, hogs generate 10 billion gallons of waste across the state annually, so much so that their pollution can be seen from space. Neighbors not only deal with the pungent smell that emanates from these farms, but are also more at risk of adverse health effects from pollution. Constant exposure to pig waste can lead to lung problems, brain damage and an increased risk of bacterial infections.
Hall, who co-founded Rural Empowerment Association for Community Help (REACH), says interactions with policymakers and industry are fraught. “Has anyone died?” was one county commissioner’s response to residents presenting their concerns, Hall recalls. “That was a bit cold because that’s what you’re asking for? You want body bags until you believe us? Take some stock in the science,” he says.
Air pollution from Duplin County farms is linked to 98 premature deaths annually, according to The Washington Post’s reporting. But across the U.S., food production results in 15,900 air quality–related deaths each year, mainly from fertilizer application and livestock waste. Yet a key gap remains in proving pollution exposure and, consequently, harm in Duplin County. Christopher Heaney, associate professor at Johns Hopkins Bloomberg School of Public Health, has been working to close that gap and develop a new tool in collaboration with residents that can be used to identify when air pollution comes from pig waste.
Researchers develop new tool to identify pollution
Using microbial source tracking, Heaney identified a specific bacterial gene sequence called “Pig-2-Bac” that is unique to pig fecal waste. That means that if this bacteria is detected, there is no way the feces could be from a cow, a bird, a human or any other sort of wild animal — which is important, considering the pushback from industry and politicians.
Although a 2017 report by a former EPA and USDA employee found hog feces DNA particles had reached residents homes, this work goes further. Hall and Heaney developed a diagnostic tool that shows this particular harmful bacteria “Pig-2-Bac” has not only reached residents’ doorsteps, but has actually made its way inside their homes, too.
“If there’s Pig-2-Bac detected on that swab, on that sample that came from the inside of your house, we know that shouldn’t be, plain and simple. I don’t have hogs inside my house,” Hall tells Sentient. “Most of us don’t have hogs even on our properties…So we know it’s airborne, and that’s how it’s getting into the house.”
Using a specialized Q-tip, Hall and other residents swab the inside and outside of their homes for the pig dust before Heaney analyzes the sample in the lab to measure both the frequency and quantity of this pig sequence. After examining over 1,400 samples from roughly 300 households, they found the highest concentration of fecal waste in homes of neighbors who lived close to or worked in the industrial farms.
“It’s not just an indicator of swine fecal filth, which has incredible implications for people’s dignity, their overall health, the ability to live with the absence of a nuisance,” Heaney says, but there are other impacts to consider “within the context of antimicrobial resistance, which represents important health implications for the neighbors.” The presence of Pig-2-Bac is strongly associated with antimicrobial-resistant Staphylococcus aureus strains — of concern, considering the growing prevalence of superbug diseases at the same time that new antibiotic treatments remain scarce.
New research builds on decades of citizen science
Science and community collaboration have long gone hand-in-hand in Duplin County to identify pollution sources. The epidemiological effort was largely led by Steve Wing, a former researcher at the University of North Carolina Chapel Hill and Heaney’s former mentor, who studied how agricultural industries were emitting harmful chemicals like hydrogen sulfides that were disproportionately affecting Black residents and residents of color. Heaney says industry and officials often dismissed their research and community grievances as nothing more than a malodor, rather than evidence of real health impacts.
Heaney is continuing Wing’s legacy of digging into pollution exposures in Duplin by working in collaboration with residents like Hall. One poignant example of their work was finding evidence of fecal contamination in surface water and drinking water. But Duplin County officials again dismissed it, saying there was no proof that contamination was coming from farmed pigs, as it could just be from wild animals, Heaney says.
“I remember hearing this and saying, ‘Oh my, this is just such a challenging dynamic for the communities,’” Heaney tells Sentient. The writing was on the wall, he says — there are over “2,000 permitted swine concentrated feeding operations, each with approximately having a football field-sized lagoon containing fecal and urine waste,” and laboratory-based evidence of impaired water quality, but it still wasn’t enough to implicate the industrial hog operations in their eyes.
Yet Heaney was undeterred, deciding to zero in on specific markers like Pig-2-Bac that would unequivocally link these hog operations to the ongoing contamination issues in Duplin County.
Duplin’s factory farming mainly affects communities of color
Industrial hog operations in Duplin County spray pig fecal matter into the air via massive sprinklers, raining down upon locals. Such facilities and their waste (stored in open cesspools) are disproportionately concentrated in Black, Latino and Native American communities — creating a long-standing legacy of environmental racism.
A 2023 study found that the largest CAFOs in Duplin were located where more than 56 percent of residents were people of color, and that exposures to associated chemicals were 66 percent higher for households where members spoke poor English, and 13 percent higher for low-income households. CAFO stands for Concentrated Animal Feeding Operation; these are more commonly called factory farms or industrial livestock operations.
Beyond the more obvious physical health impacts, living adjacent to pollutant-heavy and smelly industries brings a mental toll, too. The World Health Organization defines health as not merely the absence of disease, but the ability to achieve a full state of physical, social and emotional well-being. Research indicates that people who live near factory farms have higher risks of respiratory problems and mental health issues.
In North Carolina, hurricanes regularly wreak havoc and breach manure lagoons, causing them to contaminate local waterways. Beyond that, CAFO owners have also illegally drained their lagoons prior to hurricanes by spraying the waste into the air, posing a serious public health problem for locals.
Multiple groups have worked to prove environmental racism in court cases about the pollution, the most recent of which REACH is involved in, along with the environmental law organization Earth Justice. Their complaint aims to change the exemption for industrial farms in reporting their air emissions to the Environmental Protection Agency.
Hall wants to be clear about the intent. “I’ve never advocated to put anyone out of business. We’ve learned there’s superior cleaning technology that’s better for the environment, better for human health. So implement it. Don’t tell me that it’s not economically feasible. The [industry] not wanting to change the same method of disposing of swine waste tells me that they really don’t care,” Hall says.
Gathering evidence to strengthen future lawsuits
North Carolina’s laws limit the ability of residents to put forth nuisance lawsuits against the state’s agricultural industry — the bulk of which belongs to Chinese-owned Smithfield Foods. “I think that was shameful on their part, not just because they passed those bills, but because the industry belonged to another country,” Hall says. “I know there’s politics involved, but at the same time, when you hinder your state regulatory agencies from doing their work and it’s proven that these facilities, the way they’re operating, are harming people — then I’m not sure what to say about our North Carolina assembly.”
Environmental justice lawyers say the data gleaned from Heaney’s diagnostic tool will bolster evidence for filing future complaints against agricultural polluters. The EPA is also due to revise its Clean Air Act standards, which will require factory farms to monitor and report their emissions. But it’s unclear if this will actually happen under the leadership of Lee Zeldin, who plans to deregulate the agency. A recent Senate vote also limited the regulation of air pollutants from industries.
Duplin County is used to the pushback from politicians and industry, but will continue to fight for clean air and water, Hall says. “It is tiresome. It does take a psychological toll on us. But at the same time, what do you do exactly? I can’t just sit down and do nothing, because I still live here. Because I’m not planning to pack up and move. This is home to me.”
Sentient is a nonprofit, nonpartisan news organization that publishes stories and solutions to explain factory farms and their effect on climate, animals, workers, clean water, public health, rural communities and more.
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“I Smell Bacon! Bacon bacon bacon bacon bacon” 🤣
Jokes aside, this is freakin Horrible. Just knowing that you’re breathing in pig feces….
Well, those folks better not move to Iowa-lol! They don’t have to wait for the “honey wagons” to spread the manure to be left breathless by the odor here in this state. Those hog confinement farms are everywhere. I think sheep manure smells worse! They do need a better way of utilizing that manure so that there is far less run-off. Of course the geology of Iowa is less hilly and mountainous…
Unexceptable
Why doesn’t the affected community get RFK jr. Involved in getting that ecological mess cleaned up?
trump won’t dare let that happen 😤
So it sounds like the people need to move. They knew that the pigs were there when they moved in. City people… Bah!
I would imagine the residents were there first, not the CAFOS
With over 15,000 food production related air quality deaths each year they should stop farming.
This way everyone can breath better while the whole population slowly dies from starvation.
What about the people that was born and raised there? 🤦♀️
I appreciate this information! We here in Rob Co. also wonder about the health risk not just from Hog Farms, but Poultry Farms as well. The stinch that comes from these farms are breath taking. It diminishes our quality of life greatly because you cannot go outside for days because of the smells and on top of that, you can only imagine that it has to be bad for you and families health having to breath it in. I sincerely hope that you continue your research and add poultry to it. Again, I thank you.
Severe financial punishment should be enacted with the money goung to the families inpacted. Also limits on how.many hogs can be raised. When did China get Smithfield Farms?
Make these companies clean up their filth. Make them pay all affected victims. Strictly enforce and tighten restrictions with heavy fines and criminal negligence! These companies must give back to contaminated communities by any means seen fit by locals! Where is the EPA? Why are these operators of filth not charged for agroterrorism?
1 question which was there first pig FARMS OR property owners often in today’s world when purchasing any PROPERTY OR HOME IT SHOULD be byer beware
People were born and raised there too!!!
I was a cab driver in Los Angeles harbor. One night I was parked in a supermarket parking lot. I witnessed a homeless woman drop her drawers and take a dump in the parking lot. Shortly after a street sweeper started cleaning the parking lot. He would drive right over the steaming pile! I took off from that particular city and never hung out there again, considering the feces would dry out and become airborne. There’s an easy fix for the swine feces and that is to bury it.
Where I’m from, we have had people get out of their vehicles while waiting at a traffic light and do this same thing, in broad daylight, right on a public sidewalk. More and more i am believing civilization is now moving in reverse
Burying it will still contaminate the soil!
And that is why no one should live in North Carolina.
Most were there before the hog farms….maybe you should move to the area for experience. No one should have to live like that. SMH
This is horrific! I am appalled elected officials have the audacity to act this ignorant and seem to forget they have been elected by people who have faith in them to have their best interests in mind. Understandably these factories bring jobs to the communities and money but at what expense. If they refuse to look into the peoples’ concerns there is a possible chance eventually there won’t be any community left, therefore nor a need for them to continue in their political roles. I am disgusted by their ignorance, more so than thought of pig fecal matter being airborne and covering the inside of my home. I’d love to see the results if they were willing to have their homes tested as well.
It’s like that just about everywhere in N.C the People Come Last Look Into Our Wages Vs Other Cities I Am 40 And Boy Have I Suffered .
Once again, people of color are being disproportionately affected by environmental pollution. We saw it in Flint Michigan, and Louisiana. And now, we have the woefully unqualified Lee Zeldin dismantling 718 programs at the EPA that mostly geared towards the protection of citizens from companies like the aforementioned who have absolutely no regard for public health. They are opening the spigot, taking away restrictions and basically giving polluters free reign.
Yep the rich get rich with minimum responsibility and we get sick with family heartaches sad but true what have our race came to these days as humans when will we all be equal til then I rest .
I feel sorry for the people that were born and raised there. Others can just choose to avoid moving to that area.