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Toxic Tuesdays

Benzidine

Toxic Tuesdays

CHEJ highlights several toxic chemicals and the communities fighting to keep their citizens safe from harm.

Benzidine

Benzidine is a chemical made by humans that does not occur naturally. It is a solid that can appear white, gray, yellow, or red. Benzidine used to be used to make dyes for cloth, leather, and paper. Today, in the United States and many places around the world, benzidine is no longer manufactured or used.

Although benzidine is no longer in use, it can still be present in the environment. If benzidine enters the water or ground in the process of manufacturing, transport, storage, use, or disposal, it can remain in sediment or soil for a long time. Even if it this benzidine was subsequently covered, it can be brought to the surface again through erosion, construction, and development. At least 28 sites on the National Priorities List eligible for cleanup under the Environmental Protection Agency’s Superfund program are known to contain benzidine.

People who live near waste sites containing benzidine or facilities that previously used benzidine could be at risk of exposure through contaminated water or soil. The Environmental Protection Agency, Department of Health and Human Services, and the World Health Organization have all determined that benzidine causes cancer in humans. Working in facilities that manufactured or used benzidine was known to cause high levels of exposure. This occupational exposure has been linked to bladder and pancreatic cancer. In studies of laboratory animals, exposure also caused liver, kidney, brain, and immune system defects.

Benzidine demonstrates how even when a chemical is no longer used, it can pose a threat to human health through its persistence in the environment.

Learn about more toxics

Benzidine

Pyrethrins are a class of naturally occurring compounds derived from chrysanthemum flowers. They have been

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Pyrethrins

Pyrethrins are a class of naturally occurring compounds derived from chrysanthemum flowers. They have been

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Environmental Justice in Water Quality

By Leila Waid.

Without water, there is no life. It is a human right to have access to safe drinking water, free from harmful chemicals. However, not everyone gets access to the same safe drinking water. The Safe Drinking Water Act (SWDA), signed into law in 1974, helped bridge some of the inequities around drinking water by setting standards regarding water quality.

However, many chemicals are not being enforced by SWDA. Environmental justice advocates worry that certain communities are being harmed more than others by these unregulated chemicals than others. A study published in the Environmental Health Perspectives quantified these socioeconomic disparities regarding four unregulated classes of chemicals: Dioxane, HCFC, 1,1-dichloroethane, and PFAS.

The researchers conducted a national and US-territories analysis to find whether specific communities were more impacted by these harmful chemicals than others. Alarmingly, of the 4,815 public water systems included in the study, dioxane was found in 22% of the samples, HCFC in 5.8%, 1,1-dichloroethane in 4.7%, and PFAS in 4%. The concentration of these chemicals was also not equal throughout the entire country or all populations. Instead, the study found that Hispanic residents were more likely to be exposed to these unregulated chemicals. Public water systems that didn’t have any of the unregulated contaminants had a 13% Hispanic population. Meanwhile, public water systems that did have unregulated contaminants had a 17% Hispanic population. The researchers estimate that “a 1 standard deviation increase in the percentage of Hispanic residents (15.5 percentage points) was associated with a 5 percentage point increase in the likelihood of target contaminant detection.”

The study also found that residents living in urban areas are more likely to have unregulated contaminants in their water, at 71% versus 56%. The study also included public water systems in U.S. territories and Tribal areas and found that they also had disproportionately higher levels of unregulated chemicals.

How will these unequal exposures impact the health of the communities exposed to this contaminated water?

PFAS has become one of the most studied chemicals in the literature due to its status as a forever chemical. New studies are being published rapidly about the health effects of PFAS. For example, researchers are currently studying how PFAS may disrupt circadian rhythms and impact sleep cycles. As for dioxane, the Environmental Protection Agency has classified this chemical as a “likely human carcinogen.” 1,1-DCA also poses health risks, as it can affect the function of the nervous system.

Water is a necessity for all life on earth. And no human being should ever have to worry that the water they are drinking contains harmful chemicals that are not even being regulated at the national level. Thus, we must constantly advocate for regulations that will fully protect our drinking water sources.

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Who Will Pay For Damages Caused By Wildfires? The Utility Companies or Us?

Photo Credit: National Interagency Fire Center

By Sharon Franklin.

As climate change drastically increases the frequency and severity of wildfires, utility companies say they’re facing growing risk for payouts that could bankrupt them or require massive rate hikes on customers.  Across the West, electrical utilities are pushing state lawmakers to grant them legal immunity or limit damage payouts if their equipment sparks a blaze.  State legislators in at least eight states over the past few years have passed legislation or have proposed legislation, that would require the utility companies to follow plans to limit their risks of causing a fire.  In exchange, lawmakers would give utilities protection from lawsuits that could expose them to billions of dollars in damage claims   

What Are Wildfire Victims Saying?  Wildfire victims say these bills don’t do enough to protect residents from dangerous electrical infrastructure issues.

What Are Energy Consumer Advocates Saying?  Michele Beck, Utah Office of Consumer Services, who advocates for Utah energy customers, says it’s difficult to protect electrical customers and wildfire victims at the same time. “The costs for ratepayers are substantial, and it’s reasonable to try and find a balance between these extremely high jury awards  “I admit, it’s a devastating loss for people who are impacted [by wildfires], but somebody is also paying on the other side.” 

In Oregon, consumer advocates are similarly torn.  Bob Jenks, Oregon Citizens’ Utility Board, stated “It is a difficult place to be, having utilities close to bankruptcy and unable to make investments that are necessary to provide service,” “At the same time, the principle that customers shouldn’t be bailing out utilities for bad practices is a critical standard.”

How Are Utility Companies Responding: Shawn Taylor, Wyoming Rural Electric Association, said “We’re only one wildfire away from bankruptcy,” Even if we avoid bankruptcy, we’d have huge rate increases to cover the cost of a lawsuit.  He and other industry leaders argue that power companies should be granted relief if they take actions to limit their risk, becauseutilities are also facing soaring insurance premiums due to the increasing magnitude of claims they would face if they caused a fire.He cites examples to support their claim, stating that Pacific Gas and Electric Company declared bankruptcy in 2019 because of the $30 billion liability from a series of wildfires caused by its equipment, and Oregon, PacifiCorp is facing billions of dollars in damage claims due to its role in the state’s 2020 Labor Day fires. As reported by the Oregon Capitol Chronicle, PacifiCorp has been a key player backing immunity liability bills in five states.  

How Are Insurance Companies Responding:   Insurers are saying their own customers could pay the price if lawmakers protect utilities.  Greg Van Horssen, State Farm Insurance, testified before the Montana House Judiciary Committee in February, 2025, stating “If we have a problem with recovering costs for burnt-down houses in Montana, from an insurance company’s perspective, we only have one option, and that’s to raise the rate of homeowners’ insurance.” “When you push in one side of the balloon, it comes out somewhere else,”

Brandon Vick, National Association of Mutual Insurance Companies, a trade group noted that more and more residents in fire-prone areas are going without insurance coverage, leaving them with no recourse if they can’t seek damages from a utility. “Utilities are rightfully concerned that they’re gonna do something that causes a catastrophic wildfire.”  He went on to say The question we’ve been posing is, who should be responsible when that ultimately happens? [These bills] are really pushing that liability onto the people who can least afford it.”

Resources for this Blog

https://www.homelandsecuritynewswire.com/dr20250423-as-wildfires-intensify-utilities-want-liability-protections-but-then-who-pays

https://stateline.org/2025/04/22/as-wildfires-intensify-utilities-want-liability-protections-but-then-who-pays/wildfires intensify, utilities want liability protections. But then who pays? • Stateline

https://www.renewableenergyworld.com/power-grid/outage-management/as-wildfires-intensify-utilities-want-liability-protections-but-then-who-pays/

https://oregoncapitalchronicle.com/2025/03/31/pacificorp-involved-in-bills-in-oregon-western-states-limiting-utility-wildfire-liability-damages/

https://oregoncapitalchronicle.com/2025/04/16/proposal-to-impose-penalties-on-private-utilities-delaying-wildfire-lawsuits-quietly-moves-forward/

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Toxic Tuesdays

Pyrethrins

Toxic Tuesdays

CHEJ highlights several toxic chemicals and the communities fighting to keep their citizens safe from harm.

Pyrethrins

Pyrethrins are a class of naturally occurring compounds derived from chrysanthemum flowers. They have been used for thousands of years as insecticides and insect repellents. There are also human-made chemicals similar in chemical structure to pyrethrins – called pyrethroids – that are used as more potent insecticides. Today, pyrethrins and pyrethroids are commonly used as household insecticides on gardens, crops, pets, livestock, and humans. They can be found in bug bombs, home bug sprays, pet shampoos, and lice shampoos.

When pyrethrins enter the environment, they are quickly degraded, which makes them among the safer insecticides. However, pyrethroids are more persistent in the air, water, and soil. Even if pyrethrins and pyrethroids are not widely contaminating an environment, people can absorb, inhale, and ingest these chemicals through normal use of certain household products. When people use pyrethrin- or pyrethroid-containing products like lice shampoo or mosquito repellent directly on their bodies, pyrethrins or pyrethroids can be absorbed through the skin. This can also happen if people bathe their pets with these shampoos without using gloves. When pyrethrin- or pyrethroid-containing bug bombs or sprays are used in the home, people can become exposed by breathing the air. When pyrethrin- or pyrethroid-containing insecticides are sprayed on crops, people can become exposed when they eat those crops. People whose jobs require applying insecticides to crops, fumigating homes, or bathing animals are more likely to be exposed to pyrethrins or pyrethroids at high levels.

Pyrethrins and pyrethroids interfere with the normal functioning of the brain. Absorption, ingestion, or inhalation over just a short period of time can cause headache, nausea, dizziness, mood changes, convulsions, and even unconsciousness. These symptoms can last for days after exposure has ended. In studies of laboratory animals, exposure caused fertility problems as well. While pyrethrins and pyrethroids may be safer than other insecticides, they can cause serious harm to human health.

Learn about more toxics

Benzidine

Pyrethrins are a class of naturally occurring compounds derived from chrysanthemum flowers. They have been

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Pyrethrins

Pyrethrins are a class of naturally occurring compounds derived from chrysanthemum flowers. They have been

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Why We Organize

Every day, people facing threats to their health and environment call CHEJ for help. They are looking for proof that all landfills leak, health studies linking incinerators to cancer, or the environmental record of a company that wants to build a plant in their community. CHEJ tries to provide those facts. But we also help people through the terrible realization that simply speaking the truth about landfills, incinerators, or previous violations won’t stop the poisoning.

The truth is only a start. In order for things to change, the truth has to be understood by a large group of people who then use this knowledge to fuel their efforts to win justice. The truth won’t stop the poisoning, but organizing will.

According to Webster’s dictionary, organizing is “uniting in a body or becoming systematically arranged.” Organizing to protect our communities from environmental harm means pulling together a large enough, diverse enough, active enough group of people to convince corporations and the government that they have to stop making people sick.

Organizing is how we restore the balance between the rights of the people to safe food and healthy communities, and the rights of corporations to profit and pollute. We will never have as much money as the corporate polluters. We will never be able to afford their Madison Avenue media campaigns or their 24-hour access to elected officials. But we can build our own power to overcome their influence. We can do this by organizing to demonstrate the strength of our numbers and the righteousness of our demands.

Successful organizing happens when a group of people finds visible ways to use the truth to wake up the conscience of a larger group. In an era when politics is defined by sound-bites, organizing can remind the American people that political life is supposed to be about self-government, justice and the common good.

After years of doing it, we’ve come to the conclusion that organizing is more of an art than a science. It’s more important to be in touch with what is happening in your community and to respect and include your friends and neighbors than to follow a set of rules.

At the same time, there are some basic rules for organizing that usually hold true. These rules aren’t always applicable, but they are right often enough that you should consider them as you start to get organized around an environmental issue in your community.  Some of those rules are:

Power determines the outcome. If two or more groups care about an issue, and one of them has a lot more power, that group will get what it wants, no matter what the facts are or who will be hurt.

  • Our power comes from people, while corporations and government’s power comes from money. Communities need to use strategies that depend on people’s creativity, courage and caring. The corporations and government will use strategies that depend on things which can be paid for, like experts and lawyers.
  • Polluters and government agencies write the rules so they can win using experts and lawyers which is their strength. You can assume going in that if you play exactly according to the rules of their game, you will lose most of the time, whether you are at the slot machines in Atlantic City or the hearing process of your state environmental agency. Create your own rules instead.
  • To win, communities have to work harder than polluters and government agencies do. Polluters and agencies are doing what they do because they are paid to. They’ve done it before, and they know most of the facts before the fight even starts. You are opposing them because you believe your health and your community are at risk. This gives you an unmatched motivation for working harder than they do.

These rules may seem harsh and they are. Sometimes things turn out to be easier than these rules would lead you to expect. But when your community is at stake, it’s important to start out vigilant, alert and ready to face the challenges that lie ahead.  

Experience has taught us that organizing isn’t easy. Recognizing this should help you be forgiving of others and ourselves. Together we are trying to build a democratic society without adequate blueprints and models, so it’s important to leave room for experimentation and mistakes. And recognizing how necessary organizing is should help us to be inclusive and persistent. There are no magic facts. There are no perfect heroes to give perfect speeches that will convince the polluters to stop polluting. There is only the dogged determination of people working together to protect their own health, their families’ health and the health of their communities. This is why we organize. 

Originally published in Organizing Toolbox in CHEJ’s Everyone’s Backyard.

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Community Based Interventions for Heat Literacy

Photo by: Flash Vector

By Leila Waid.

A recently published systematic review article analyzed effective methods for increasing heat literacy. A systematic review summarizes the current scientific literature by synthesizing multiple studies and providing the lessons learned. In this case, the authors focused on analyzing community-based health adaptation programs – defined as “interventions focus[ed] on local engagement, offering culturally tailored resources and information designed to enhance individual knowledge and adaptive behaviors related to heat-related illness prevention.” Instead of utilizing a top-down approach to address climate change, these programs focus on empowering communities by affecting local change via education initiatives and behavior change theories.

One study found that educational outreach efforts for older adults were an effective method when utilizing community spaces they are already familiar with and go to regularly. The participants were also taught how to measure Wet Bulb Globe Temperature. Another study, also focusing on delivering an education curriculum, found that Community Health Worker-led curriculums were associated with a 38% reduction in hospital visits. Also, a successful education program needs to increase not only the participants’ knowledge but also their attitude and practice (KAP) to induce desired behavior change.

Addressing heat risk among the elderly population is especially important due to their increased vulnerability. One study in the review focused on the importance of working with elderly individuals to draft a list of emergency contacts to call during heat waves. Another study evaluated the importance of addressing social isolation among older adults by strengthening their social networks and increasing their ties to the local community. The study found that elderly individuals participating in the program had lower mortality rates than non-participants.

Public health communication campaigns—such as handing out informational flyers and newspaper ads, installing an automated phone warning system, and conducting media outreach via radio, television, and newspaper ads—were also found to be effective. Another mass communication technique that was found to be effective included handing out water bottles with PSAs about heat safety to senior citizens at their place of residence.

These studies showcase that climate change adaptation techniques do not always need to utilize top-down approaches, focus on policy changes, or require a lot of resources. In many cases, outreach to communities and individuals to increase their knowledge levels via educational campaigns can be effective tools in the fight against climate change.

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Toxic Tuesdays

Hydraulic Fracturing

Toxic Tuesdays

CHEJ highlights several toxic chemicals and the communities fighting to keep their citizens safe from harm.

Hydraulic Fracturing (Fracking)

Hydraulic fracturing (commonly known as fracking) is a technique that uses pressurized liquid to fracture bedrock in order to the extract the oil or gas inside.  Materials in the fracking fluid keep these cracks open so the oil or gas beneath can flow freely and be collected. After injection into the rock, some fracking fluid remains underground and some flows back to the surface.

Fracking fluid usually consists of water, sand or beads, and a mixture of chemicals. While many of the chemicals are not publicly known, some of the ones that are known can have harmful effects on human health. With up to millions of gallons of liquid being used to fracture a single well, these chemicals can be dangerous even if they constitute a small percentage of the fracking fluid. People can be exposed to these chemicals through contamination of drinking water supplies, physical contact with the flowback waste, or inhaling chemicals after they evaporate into the air from open-air waste pits.

Research has shown that living close to fracking wells is associated with adverse health outcomes, including poor birth outcomes like preterm birth (PTB) and low birth weight (LBW). However, not all this research is in agreement about these effects on birth outcomes because there are other confounding factors that can make drawing conclusions difficult. For example, most fracking wells are in rural areas, and rural communities have higher rates of many health conditions including PTB and LBW when compared to urban communities. Another confounding factor is that fracking wells have different mixtures of chemicals, so the health effects of living near a well may depend on the specific chemicals used in that well.

A recent study set out to clarify the link between living near active fracking wells and rates of PTB and LBW on a national scale. This study used publicly available, national, county-level 2014-2018 data from the US Census, Centers for Disease Control, US Department of Agriculture, WellExplorer, March of Dimes, and the National Birth Defects Prevention Network to analyze the association between exposure to fracking wells and the rate of PTB and LBW. It controlled for many socioeconomic and geographic factors that may impact PTB and LBW, thereby more directly analyzing the specific link between fracking wells and birth outcomes than previous studies. The factors this study controlled for included: race, ethnicity, poverty level, education level, percentage of population with health insurance, access to maternal care, marriage rates, drug-related death rates, population density, percentage of a county that is agricultural land, and amount of agricultural pesticides used in a county.

The study found that density of active fracking wells was associated with a higher average county-level PTB and LBW. For wells known to use chemicals that target the hormones estrogen or testosterone, well density had an even bigger effect on county-level PTB and LBW. This is one of the first studies to assess these associations on a national scale and to demonstrate that the chemical ingredients in fracking wells can have a major impact on PTB and LBW. Importantly, these findings are not a result of socioeconomic or geographic factors like race, poverty, health insurance, or population density. This study is one of the strongest yet in demonstrating that fracking wells are linked to the poor birth outcomes of preterm birth and low birth weight. 

Learn about more toxics

Benzidine

Pyrethrins are a class of naturally occurring compounds derived from chrysanthemum flowers. They have been

Read More »

Pyrethrins

Pyrethrins are a class of naturally occurring compounds derived from chrysanthemum flowers. They have been

Read More »
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Submerged and Overlooked: The Midwest Flooding Crisis Through an EJ Lens

By Juliet Porter.

At the start of April, devastating storms swept across parts of the Midwest and Southeastern United States, bringing tornadoes, violent winds, and catastrophic flooding. Millions of Americans were affected as rivers overflowed, homes were damaged or destroyed, and lives were lost. The National Weather Service warned early on that this would be a “multi-day catastrophic and potentially historic” event, with a “barrage of life-threatening” conditions, including powerful tornadoes and widespread flash flooding.

The Kentucky, Ohio, and Mississippi Rivers rose to historic levels, inundating communities and dismantling local economies. In Frankfort, Kentucky, the Buffalo Trace Distillery, America’s oldest operating distillery, was forced to shut down as the Kentucky River crested at nearly 48.5 feet. Floodwaters swallowed traffic signs, submerged cars, and damaged buildings, pausing operations at a cornerstone of the region’s economy. The long-term clean-up ahead reflects the broader challenges that communities across the region are now facing.

This incident is not isolated, nor is it simply the result of bad luck. It’s a powerful example of how climate change-fueled weather events collide with existing social inequalities, often with devastating consequences. The communities hit hardest by storms like these are frequently those with the fewest resources to recover.

Looking ahead, experts are warning of an especially intense Atlantic hurricane season. A recent report from Colorado State University estimates there could be 17 named storms and 9 hurricanes, roughly 125% higher than the average season from 1991 to 2020.

This pattern of increasingly frequent and extreme weather is a direct result of global warming. But while the threat is real, so are the solutions. Action can and must be taken now to protect vulnerable communities and build long-term climate resilience.

First, infrastructure investment is essential. Maintaining and upgrading levees and flood control systems can prevent or reduce the worst impacts of future flooding.

Second, community engagement must be prioritized. At the heart of environmental justice is the principle that those most affected must have a say in the decisions that impact their lives. Involving residents in planning, preparedness, and recovery efforts ensures that policies are shaped by those who know their communities best.

Finally, policy reform is needed at every level of government to address the systemic inequalities that make marginalized communities more susceptible to climate disasters.

As we approach Earth Day on April 22, this moment serves as a sobering reminder of the work ahead. But it also underscores why organizations like the Center for Health, Environment & Justice (CHEJ) exist. For over four decades, CHEJ has supported grassroots efforts to build healthier, more resilient communities in the face of environmental threats. Through advocacy, organizing, and education, CHEJ continues to empower those on the frontlines of the environmental justice movement, especially when the waters rise.

Sources: 

NPR- https://www.npr.org/2025/04/02/nx-s1-5349304/storms-tornadoes-flooding-midwest-south 

Associated Press- https://apnews.com/article/kentucky-whiskey-bourbon-buffalo-trace-2a386bc74dfbcde223cfa157d8d6da1b 

CBS- https://www.cbsnews.com/news/2025-atlantic-hurricane-season-forecast/ 

Urban Lab Systems- https://urbansystemslab.com/urbanfloodrisk#:~:text=climate%2Ddriven%20events.-,The%20Environmental%20Justice%20of%20Urban%20Flood%20Risk%20and%20Green%20Infrastructure,communities%20across%204%20U.S.%20cities

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Up against Trump’s destructive presidency – can art and culture make a difference?

By Ken Grossinger.

Strongmen all want the same thing. They want us to feel powerless. When we feel we don’t make a difference, that’s when they win.

But long before Trump, Musk, and their sycophants began to demean and attack environmental justice activists in order to chill our protest, and long before they acted to shred anything that runs counter to their toxic environmental policies, the EJ community – along with many others – was re-evaluating its strategies and tactics for building power. Our often hide-bound approach to social change needed new shots of creative thinking because it remained insufficient to challenge corporate and government policy and practices that harmed our communities.

Even today, while the nation’s courts offer legal advocates a vehicle to fight back, it’s becoming increasingly clear that the courts may not restore or advance the policies we’ve long fought for. To the contrary, the latest legal assault on Greenpeace by corporate giant Energy Transfer makes it abundantly clear how the court may be weaponized to destroy our organizations and silence our voice.

Community organizing and public protest remain essential to win. And elevating art to amplify and deepen our campaigns for environmental justice is crucial to shifting false narratives and to enriching our fight. That might sound thin in the context of the onslaught against our work, but an upsurge of new alliances – fusing politics and culture – is altering how we think about and approach our campaigns.

When people are not emotionally primed to accept new ideas, they often don’t. Think about the graphs, charts, and data that environmental organizations have used over the decades to make our policy cases. While necessary, quantitative data is rarely sufficient to move people into the streets or even in the halls of Congress. For that, passions need to be ignited, and our emotions and sensibilities brought into play. 

Art has a unique capacity to penetrate popular culture in ways organizing never will. It’s why movement leaders over the years led with so many forms of art that give rise to and support organizing. Just look at a few historical and contemporary examples.

Think about music, an ever-present force in organizing during the civil rights movement. Activists sang to strengthen their resolve and overcome their fears.  Author Bruce Hartford said “the songs spread our message, bonded us together, elevated our courage, shielded us from hate, forged our discipline, protected us from danger, and it was the songs that kept us sane.” 

During the same period theater galvanized farmworkers. The United Farmworkers (UFW) created El Teatro Campesino, a theater company driven by their members to take on agribusiness. UFW co-founder Delores Huerta said El Teatro was a powerful organizing tool, as important as the picket line in building solidarity among farmworkers to deal with strike-breaking scabs.

The power of film in political mobilization was evident in Jeff Orlowski’s cinematically beautiful Chasing Ice (2014), a film which brings the devastating impact of climate change into sharp relief. In a Ohio Congressional district represented by a climate change denier, Orlowski used polling to demonstrate how film shapes public opinion. The polling, which preceded and followed ninety screenings of the film, along with talk backs in theaters and the community, indicates that the film lifted by 15-25% (depending on the question) the number of people who thought that climate change was real, caused by human activity, and an extremely important cause for concern.     

More recently, following the police killings of so many young Black men and women, the Black Lives Matter movement spurred and embraced street art, amplified by social media, that spoke to our communities. Across the nation and internationally artists painted hundreds of George Floyd murals. The Floyd mural became an iconic image of the 21st century. A symbol of protest. A tribute. A way to heal.

Artwork in the form of music, film, theater, painting, storytelling and more have always helped shape narratives about social justice.

We won’t win if we don’t organize, but organizing alone is unlikely to produce long-term change if we’re unable to touch the heart and reach the soul of our communities and shift the narratives that maintain the status quo. Cultural strategies do that.

Ken Grossinger is a longtime movement strategist and author most recently of Art Works: How Organizers and Artists are Creating a Better World Together (New Press, 2023) For more information about Art Works or to schedule a book talk, see www.artworksbook.com

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Toxic Tuesdays

Carbon Disulfide

Toxic Tuesdays

CHEJ highlights several toxic chemicals and the communities fighting to keep their citizens safe from harm.

Carbon Disulfide

Carbon disulfide is a colorless liquid chemical that readily evaporates at room temperature. It occurs naturally during composting and volcanic eruptions, but most carbon disulfide is manufactured by humans for industrial purposes. Most manufactured carbon disulfide is used in the production of rayon, a semi-synthetic fiber used to make clothing. Other uses of carbon disulfide include manufacturing of cellophane, certain pesticides, and vulcanized rubber.

While carbon disulfide enters the environment from naturally occurring sources, most of it comes from emissions from industrial facilities that make or use it. Most carbon disulfide that enters soil or surface water quickly evaporates into the air. This means that the primary way people become exposed to carbon disulfide is through breathing contaminated air. People who work at rayon manufacturing facilities are the most likely to become exposed, but people who live near these facilities have been known to be exposed as well. When pesticides manufactured with carbon disulfide break down in the environment, the carbon disulfide can be released. People who work with these pesticides or live near where they’re applied can become exposed at high levels too.

Long-term inhalation of carbon disulfide causes serious nervous system dysfunction, including tremors, abnormal movement, decreased sensitivity to pain, and vision impairment. It can also cause elevated cholesterol and cardiovascular disease. Short-tern inhalation of high levels of carbon disulfide can also cause serious neurological dysfunction including psychosis, paranoia, mood changes, and hearing problems. Adverse health effects associated with carbon disulfide inhalation have been known since the early 1900s.

The evidence is clear that carbon disulfide exposure is dangerous to human health, and its use can be replaced in many industries. For example, there are ways to produce rayon that don’t use carbon disulfide, but they are not widely used because they are more expensive. Regulations that stop carbon disulfide use in these industrial processes would protect human health without having to end production of these useful consumer goods.

Learn about more toxics

Benzidine

Pyrethrins are a class of naturally occurring compounds derived from chrysanthemum flowers. They have been

Read More »

Pyrethrins

Pyrethrins are a class of naturally occurring compounds derived from chrysanthemum flowers. They have been

Read More »