Photo by the Massachusetts Dept. of Environmental Protection on Flickr, Creative Commons license (CC BY 2.0)
“We are amid a major water crisis that is beyond anything you can imagine. Pollution problems persist and toxins are everywhere, stemming from the hazardous wastes of industry and agriculture. We’ve got more than forty thousand chemicals on the market today with only a few hundred being regulated.” -Erin Brockovich1
Water Treatment is Necessary
All water is reused, including the water we dump down drains and the contents we flush in toilets. Water treatment facilities “clean” the water by removing solids – including sewage – and treat the water with chemicals. Water has microorganisms, bacteria, and viruses, so it is necessary to treat the water with chemicals so that is safe to drink. However, the Environmental Protection Agency (EPA) doesn’t research or regulate all of those chemicals. As Erin Brockovich noted, “Scientists still have little data about how individual chemicals impact our health, and know even less about the effects of multiple chemicals on the body.”2
“So there is shit in the water; I’d have to make peace with that.” -Elizabeth Royte, Bottlemania: Big Business, Local Springs, and the Battle Over America’s Drinking Water
Many water treatment facilities now use an alternative disinfectant method, a mixture of chlorine and ammonia, called chloramine. They’re doing this increasingly in order to meet federal disinfection byproducts requirements. It is the cheapest way but it is dangerous. Chlorine normally evaporates somewhat quickly, but chloramine lasts longer in the water. Chloramine is “a known carcinogen and causes more rapid deterioration of the municipal infrastructure and degradation of water system valves and fittings. In systems that still use lead pipes or lead components (which means millions of homes and buildings), the chloramine causes lead and other metals to leach out of faucets and showerheads and into our drinking water. Studies indicate the formation of toxic byproducts in drinking water may be higher when utilities use chloramines.”3
Chlorine Burnouts
These happen when the water utility is trying to meet testing standards. It makes the water strongly smell like chlorine. “It’s a dirty practice that cheats the system,” wrote Erin Brockovich. A burnout is when the water treatment changes from chloramines to free chlorine. “They do this to clean the water pipes and essentially flush the entire system,” and then test the water before and after, but not during. “The regular use of chloramines doesn’t remove all the harmful organics and dirt from the water supply, so the system gets ‘flushed’ with chlorine, forming thousands of chemical combinations that cause cancer and other health issues…The levels of chlorine used in a burnout produce chloroform, which if inhaled in a hot shower or through medical devices (humidifiers, CPAPs, or nebulizers) can cause chemically induced asthma and pneumonia.”4
“It’s important to know that chlorine in clean drinking water doesn’t smell. When you smell what you think is chlorine in water, it’s due to exceedingly high levels of toxic chemical compounds reacting with the chlorine.” – Erin Brockovich5
Wastewater treatment plant, image by Michal Jarmoluk from Pixabay
Toxic Contaminants Linked to Cancer
Many contaminants are linked to illnesses and health issues, including cancer. The American Cancer Society estimates that there will be approximately 1,918,030 new cancer cases in 2022.6 But what is causing all of these cancer cases? Though some cancer may be from genetics or lifestyle, I’m convinced that most cancer is due to exposure to chemicals.
In 2019, researchers revealed that between 2010 and 2017, more than 100,000 cases of cancer were likely caused by the accumulation of carcinogenic chemicals in tap water. They cited arsenic, disinfection byproducts, and radioactive contaminants as the major contaminants, but they also noted that other toxins that are not monitored, such as PFASs and PFOAs, may also contribute to cancer cases.7
“How much of any toxic substance can a human body ingest and still be well?“ -Erin Brockovich8
Children Are Getting Cancer Too
Cancer affects our children globally. In the U.S., cancer is diagnosed annually in about 400,000 children aged 19 or under. It is the leading cause of death by disease past infancy for children.9 As Erin Brockovich wrote, children “don’t smoke, drink alcohol, or work stressful jobs.” So why are so many getting cancer? Children are more vulnerable to chemical toxins than adults because they have higher metabolisms and less mature immune systems.10 We need more research but suspicion should be enough to tell us that there’s a problem.
“American children are growing up exposed to more chemicals than any other generation in history and it shows.” -Erin Brockovich11
Photo by Steve Snodgrass on Flickr, Creative Commons license (CC BY 2.0)
How Do These Contaminants End Up in Our Water?
Contaminants in our water come from many sources. Besides water treatment chemicals, corporations that discharge toxic wastewater and chemicals into the groundwater and surrounding environment pollute the water. Improperly lined landfills leach toxins into groundwater. Hydraulic fracturing, or fracking, forces chemicals into the ground to release natural gas and those get into the water supply. The toxins from gasoline and oil spills get into the water. Pharmaceuticals are now in our water supply too.
Herbicides and pesticides applied to large agricultural plots get into the water supply from run-off, meaning rainwater washes some of them away and they get into the water supply. Big agriculture dumps animal waste into our waterways, both directly and indirectly. Tyson Foods, for example, was caught several times directly dumping tons of animal waste into waterways. Indirectly, animal farms maintain hog lagoons to collect animals’ feces and store them in ponds. During floods, those ponds overflow and mix with all of the water and enter the water supply.
The pink pond at the bottom of the image is an example of a Hog Lagoon, in North Carolina. Photo by The Waterkeeper Alliance on Flickr, Creative Commons license (CC BY-NC-ND 2.0). Image slightly cropped and fade corrected.
“We assume watchdogs are in place and that regulatory agencies and government standards are keeping us safe…Big businesses rule the roost, dumping their leftover chemicals wherever they like with little regard for our safety.” -Erin Brockovich12
Improve Infrastructure and Treatment
Landfill leachate in Wales. The orange froth is a mixture of solvents, phenols and other chemicals from a landfill created before regulations. Photo by richie rocket on Flickr, Creative Commons license (CC BY-NC-ND 2.0).
Governmental and municipal agencies across the United States must upgrade antiquated water infrastructure and water treatment practices. “The technology we rely on for treating most of our drinking water is almost a century old and many of our water treatment plants have been in operation since the early twentieth century.”13
“It’s enough to make a tap lover cry.” -Elizabeth Royte14
Monitor Pollution
Federal, state, and local government agencies must supervise industries and monitor for pollution since we know we cannot rely on the industries to self-regulate or self-report. “Unsupervised industry pollution combined with failing infrastructure is a recipe for disaster. To add insult to injury, the more polluted the water becomes, the more chemicals we need to treat it.”15 Otherwise, cancer and related illness will continue to grow.
“We’ve had industrial byproducts discarded into the ground and into our water supply for years. The companies who dump these toxins know it. They have always known it. The government knows it too. These issues affect everyone – rich or poor, black or white, Republican or Democrat. Large and small communities everywhere think they are safe when they are not.” -Erin Brockovich16
Aerial view of the San José-Santa Clara Regional Wastewater Facility. Photo by John Cameron on Unsplash
What Can You Do?
As I mentioned earlier, water treatment is necessary. But many contaminants in water aren’t just from disinfection, as mentioned in Part 1. Find out what’s in your water by using the Environmental Working Group’s Tap Water Database. Then learn more about those contaminants in my list of Common Water Contaminants. Educate others, advocate through community and municipal meetings, call your water company and local politicians, and don’t take no for an answer.
Please don’t switch to bottled water. This may sound counterintuitive but it is largely a scam. It provides a false sense of security, as the water source for most bottled water is tap water.
In the meantime, review how you’re filtering your water at home. Most water filter systems don’t remove all contaminants. In my next article, I’m going to cover how to filter out the contaminants you are most concerned about. Stayed tuned, and thanks for reading!
Additional Resources:
Database, Environmental Working Group’s Tap Water Database.
In Part 1 of this series, I introduced polystyrene, which we commonly refer to as Styrofoam, food packaging. This type of plastic is terrible for the environment and human health. Today, we’ll look at the toxicity of polystyrene in depth.
After watching friends and coworkers repeatedly reheat their take-out and leftovers in polystyrene, I decided to write a post about it. I had known polystyrene was potentially toxic for a long time, but I had no idea of the breadth of the problem.
Chemicals Leach from Containers into Food
Polystyrene leaches styrene and benzene, chemicals that have known toxic properties, into food. In testing, one scientific journal independently tested and found that polystyrene leaches more toxins when in contact with high-temperature contents and into foods with higher fat content.1 What does this mean? It means that if you buy hot food, fatty food, soup, or coffee and it is packaged in polystyrene, some of the chemicals from the container leach into your food. Over time, these chemicals can cause severe health problems.
“Styrene is likely to leach when it comes in contact with fatty foods, hot beverages, and especially alcohol. When thinking about the kinds of foods that typically end up in Styrofoam containers (fatty foods) and cups (hot coffee), it seems as though the exact kinds of items Styrofoam contains are exactly the kind of items it should never touch.” -The Green Dining Alliance2
I recently went to a BBQ restaurant in Dayton, TN. They serve most of their food in polystyrene containers. My fried okra side melted the polystyrene and those chemicals certainly leached into my food. I didn’t eat the okra, I dumped it out so that I could photograph the container. I likely will never dine at that place again. It really concerns me that people eat food out of these types of containers every day! Photo by mePhoto by me
Known Toxicity
When I searched “polystyrene human health” I got more than 13 million results. After reading many articles, I realized that all organizations and even the government, including the Environmental Protection Agency (EPA), know that polystyrene is harmful to human health as well as land and marine environments. Furthermore, the Food and Drug Administration (FDA) permits the migration of styrene from packaging into food!
Study after study shows that chemicals from polystyrene leach into foods and beverages, especially with higher temperatures and food with higher fat content. And study after study shows that styrene is dangerous to human health. In fact, most agencies caution against the use of polystyrene because of the known health hazards, including:
The Environmental Protection Agency (EPA)
The World Health Organization (WHO)
The International Agency for Research on Cancer
National Institute for Environmental Health Sciences
U.S. Department of Health and Human Services (DHHS)
National Research Council (NRC)
Occupational Safety and Health Administration (OSHA)
National Institute for Occupational Safety and Health
The Agency for Toxic Substances & Disease Registry (ATSDR), Center for Disease Control and Prevention (CDC)
Image by albedo20 on Flickr, Creative Commons license (CC BY-NC-ND 2.0)
A Known Carcinogen
Styrene exposure increases the risk of leukemia and lymphoma and is a neurotoxin. This alone is enough reason to avoid polystyrene containers. In 2018, the World Health Organization (WHO) reclassified styrene as a probable carcinogen.3 While the EPA does not classify it as a carcinogen, it noted that animal cancer studies provided some evidence for carcinogenicity.4 Several of the organizations mentioned above, including the International Agency for Research on Cancer and the Department of Health and Human Services consider it to be carcinogenic.
Hormone Disruption
There are countless studies that show certain types of plastics contain known hormone disruptors. Those chemicals often mimic estrogen and they seep into food and beverages (including breastmilk). In 2014, Environmental Health tested 11 samples of polystyrene and consistently found estrogen seepage after exposure to intense steam or ultraviolet rays5. Since polystyrene is a type of plastic, this is just one more reason to avoid polystyrene containers.
It is terrifying that many schools use foam trays for cafeteria food. Hormone disruption in young children prevents them from developing normally, can affect their ability to reproduce as adults, and can set them up to be prone to other diseases.
Image by Laura Taylor on Flickr, Creative Commons license (CC BY-NC-ND 2.0)
Other Health Hazards
Styrene exposure can come from other sources, such as photocopier toner, automobile exhaust, and plastics manufacturing. Exposure can cause irritation of the skin, eyes, mucous membranes, the upper respiratory tract, and gastrointestinal irritation. Chronic exposure can cause neurological problems such as depression, headaches, fatigue, weakness, hearing loss, and disrupted kidney function.6
Additional Unknown Chemicals
There are many chemicals and ingredients that are not tested for and not regulated by the EPA and FDA. While this may seem surprising, the standard operating procedure in the United States is to allow the chemical to be used until a known hazard is not only discovered, but proven. Essentially, chemicals are innocent until proven guilty.
Hefty polystyrene container, photo by me
Exposure through Manufacturing
Anyone who lives near or works in polystyrene manufacturing sites are at risk of even greater health problems due to respiratory exposure. The Clean Water Action organization noted that “occupational exposure to Styrene increases [the] risk of lymphoma, leukemia, lung tumors, pancreatic cancer, urinary bladder cancer, prostate cancer, and colorectal cancer. High rates of neurotoxicological effects have been reported in workers,” as well as decreased sperm counts.”7 These plants also emit a toxic and volatile gas called pentane, often used as a blowing agent in the production of polystyrene.
“Over fifty chemical byproducts are released during the manufacturing of polystyrene, contaminating the air, water and communities that live near these facilities.” –Children’s Environmental Health Network
What You Can Do
Polystyrene is toxic to human health. When ordering take-out, ask the restaurant if they use “Styrofoam” or polystyrene containers, and if they do, you can either ask if they have an alternative type of container or decide to order from somewhere else. When bringing leftovers home from a restaurant, keep a glass or metal container in your car specifically for such occasions. Bring your own reusable coffee mug to coffee shops. As I mentioned at the beginning of my post, please try to avoid eating food in polystyrene, and definitely stop reheating your food in polystyrene containers in the microwave.
Last, polystyrene is the most common type of #6 plastic and is largely not recyclable because of food contamination. In Part 3, I will cover the problems with recycling and the environmental damage polystyrene causes. Thank you for reading, and please subscribe!
Additional Resources:
“Styrene,” Report on Carcinogens, 14th Edition, National Toxicology Program, Department of Health and Human Services.
Report, “What’s the Package? Unveiling the Toxic Secrets of Food and Beverage Packaging,” Clean Water Action and Clean Water Fund, August 2016.
Article, “Leaching of styrene and other aromatic compounds in drinking water from PS bottles,” by Maqbool Ahmad and Ahmad S. Bajahlan, Journal of Environmental Sciences, 19 (2007), p. 421–426, accessed September 12, 2021.
