Recycling is NOT The Answer

Recycling, separated into paper bags and blue bins
Image by GreenStar from Pixabay

I used to be an avid believer in recycling. When I was 11, my family began collecting and taking our recycling to the local center. Soon after, the county we lived in passed a recycling ordinance. I was hooked. I even wrote a paper in 9th grade about landfills and recycling, citing a study about mining landfills for recycling and resources that I’d found inspiring.1

Since then I’ve dutifully washed, separated, and toted my recycling, no matter where I’ve resided. If there was no recycling service, I tracked down the recycling centers. At parties or on vacations where recycling wasn’t available, I carted my recyclables all the way home so that I could recycle them. I have spent a great deal of time over my life teaching and educating others on the how’s and why’s of recycling.

Imagine my disappointment just a few years ago when I discovered that only 9% of plastics are recycled.

“Recycling is great, but unfortunately it is not enough. There’s simply too much recycling to process, and we’re still consuming way too many resources.” -Kathryn Kellogg, 101 Ways To Go Zero Waste

Steel and aluminum recycling bales, compacted and very colorful.
Compacted steel and aluminum recycling bales. Photo by Steven Penton on Flickr, Creative Commons license (CC BY 2.0)

The Notion of Recycling is Misleading

The reason that recycling is NOT the sole solution to our waste problem is the misconception that it IS the sole solution to our waste problem.

Many well-meaning people toss their once-used plastic bottle or container into a blue bin somewhere and think that they’ve done their part. But most do not know the real impact of what they are doing. This is because we’ve been fed the myth of recycling for decades. Plastic manufacturers carefully curated the message that we can use all of the plastic we want to because we can just recycle it. That’s a very convenient notion but not at all how it works.

Recycling actually increases consumption, because it gives consumers a false sense of taking care of the environment and doing the right thing. The fact that we think we can recycle something often drives our purchases. It is acceptable to us to buy single-serve plastic yogurt cups and plastic single drink bottles because we can justify the waste those things create with recycling. We pass these notions on to our children as well.

Additionally, companies push these falsehoods through marketing. They want us to think their products are recyclable or sustainable in some way, in order to drive up sales. Some will go as far as ‘greenwashing‘ their products.

“If the public thinks that recycling is working, then they’re not going to be as concerned about the environment.” -Larry Thomas, former head of Society of the Plastics Industry2

Bales of contaminated platic bottles on a pallet.
Photo by recycleharmony on Flickr, Creative Commons license (CC BY-NC-ND 2.0)

Recycling Myths

There are many recycling myths! Here are just a few of them.

An Endless Loop

First, recycling is not a clean, closed, endless loop where everything that goes in is remade and reused. Materials, especially plastics, degrade in quality. Many plastics are not recycled at all. Since plastics are polymers mixed with chemical additives, plastic products are typically downcycled. Downcycling means made into a lower-quality plastic. Therefore, new plastic from petroleum is often preferred by manufacturers in order to keep making equivalent-quality plastic products. Further, new plastic is often cheaper than recycled. “The current cost of virgin plastic nurdles is much cheaper than the cost of recycled plastic nurdles, so it doesn’t make economic sense to purchase recycled plastic – and much of our carefully sorted plastic ends up stuck in a landfill, incinerated, or shipped abroad.”3

So a plastic water bottle is not remade into another plastic water bottle. It may be downcycled into carpeting or synthetic fabric. After an item outlives its use as a lesser type of plastic container, carpet, or plastic lumber, it is still landfilled. So while technically recycled (downcycled) one time, it is not an endless loop of the same materials being used over and over again.

Recycled content

Further on the myth of reusing materials, have you ever noticed on something you purchased has a label that reads “made from 45% post-consumer” waste/content/plastics? This simply means that 45% of the product or packaging is made from recycled materials. While 100% post-consumer exists, most often, virgin materials must be mixed in with recycled materials to maintain a product’s durability. This is especially true with plastics, paper, and cardboard.

Recycling diverts waste from landfills

Another myth is that recycling automatically diverts waste from landfills. This is just not true. Many recyclables end up in landfills if recycling is contaminated. Contamination is simply the mixing of recyclables with dirty items and non-recyclables. The average resident may not want to spend time cleaning their recyclables or may not know it is necessary. They may not understand what is and is not accepted in their local recycling. They may also be “wish-cycling,” which is when someone attempts to recycle something they think should be recycled, like plastic bags, which are not recyclable. Plastic bags can get tangled in the machinery, and it contaminates the end product of recyclables. If recyclables have too many contaminates, or non-recyclable items, those bales are likely to be landfilled (or even incinerated) rather than sold to a company that will reuse them.

If it is collected, then it is recycled

Just because you put it in a blue bin that “accepts” something does not automatically mean those materials are recycled.

Plastics #3-#7 are often collected in municipalities across the country but they are sent to landfills or are incinerated. Some still export their mixed plastics to other countries. But collecting mixed plastics through single-stream recycling is a big part of the problem. “Acceptance of such a plastic item at a [Materials Recovery Facility (MRF)] alone is not sufficient and reasonable assurance to a customer that it will be manufactured into another item, as required by the FTC…Companies cannot legitimately place recycle symbols or “Check Locally” text on products made from plastics #3-7 because MRFs nationwide cannot assure consumers that valueless plastics #3-7 bales will actually be bought and recycled into a new product.”4

“Acceptance by a [Materials Recovery Facility] is Not Proof of Recycling.”5

Bird's eye view of paper bales at a recycling center.
Aerial view of paper bales at a recycling center. Image by WFranz from Pixabay.

Volume

The amount of waste and “recycling” humans create is ridiculous, and most people really don’t have any idea about the total volume. Waste and recycling go into a bin and we don’t think about it again. This further creates misconceptions surrounding recycling simply because we don’t understand the volumes of waste we create. If you combined the waste from just you and your neighbors, how much waste is that? Now imagine the amount from your entire neighborhood, city, state, and then nation.

The EPA estimates that of the 292.4 million tons of municipal solid waste (aka trash) generated in the U.S., approximately 69 million tons were recycled.6

Of this, 35,680,000 tons were plastic. Thus, an 800-pound bale of PET would be roughly 18,400 of the 16-ounce PET Bottles.7 Other estimates vary slightly, depending on the size and actual weight of each individual plastic bottle. Now I am not a mathematician. But if all plastics from the 35 million tons were plastic PET bottles, and one ton weighs 2,000 pounds, that would mean there are about 46,000 plastic bottles per ton. Then multiply 35,680,000 by 46,000, and that equals 1,641,280,000,000 individual plastic bottles. And that’s just plastics from one year!

A woman at the foot of a hill of plastic bottles, sorting recycling in Pakistan.
A woman scavenges for survival in a mountain of plastic waste, Pakistan. Photo by baselactionnetwork on Flickr, Creative Commons license (CC BY-NC-ND 2.0)

Recycling is Important

Extracting natural resources is terrible for the environment, human health, wildlife, and directly affects climate change. Preventing the extraction of virgin materials is important, especially when it comes to fossil fuels. Both extracting and burning fossil fuels greatly contribute to global warming.

“Recycling consistently requires less resources and produces fewer greenhouse gases (GHGs) than production of new materials,” wrote Beth Porter.8 For example, recycling aluminum uses 95% less energy than extraction. Almost 75% of all aluminum that has ever been produced is still in use. Paper has a recycling rate of approximately 68.2% (in 2018), the highest compared to other materials in municipal solid waste.9

Plastic recycling bales, colored and white/clear items.
Bales of plastic ready for shipping. Photo by Larry Koester on Flickr, Creative Commons license (CC BY 2.0)

The Plastics Market

“Recycling depends on the idea that the cost of collecting and sorting certain materials is rational because somebody will want to buy them to make something else. In reality, many plastics have no such market.”-The State of Recycling National Survey, U.S. PIRG Education Fund10

Plastic production is complex and chemical. Worse, “most plastic is derived from oil drilling and/or fracking. Ethane cracker facilities turn ethane into ethylene, a building block of most common plastics.” We know that the oil industry, gas processing facilities, and ethane crackers are all associated with climate change and environmental problems.11 “The massive expansion of plastic production in the U.S., fueled by at least $200 billion of investment in 340 petrochemical projects, is flooding the market and causing polyethylene [recycling] prices to decline to historic lows – below prices last seen during the 2008 financial crisis.”12

Since there is little market for recycled plastics, it exacerbates the waste crisis. Recycled plastic must be given some kind of economic value so that collecting it for recycling has a financial incentive.13

“The simple fact is, there is just too much plastic — and too many different types of plastics — being produced; and there exist few, if any, viable end markets for the material. Which makes reuse impossible.”14

Stacked bales of recycling from a distance, inside the Strategic Materials recycling plant in South Windsor, Connecticut.
Bales of recycling at the Strategic Materials recycling plant in South Windsor, Connecticut. Photo by CT Senate Republicans on Flickr, Creative Commons license (CC BY-NC-ND 2.0)

What Can You do?

“Somewhere along the way, key parts of the “reduce, reuse, recycle” mantra got lost. We have lost track of reducing and reusing.”15

PLEASE RECYCLE! This post is not intended to discourage you from recycling.

But recycling is not the answer to our waste crisis.

We must restructure the way we think about trash. We must change our goals surrounding waste. The goals should focus on refusing, reducing, and reusing long before recycling enters the picture – in that order! If you read my article on how recycling works, you’ll recall that recycling processes are very complex and recycling is easily contaminated.

It is also imperative that we move away from single-use disposables. That alone could help improve pollution, reduce ocean microplastics, and help climate change. Thank you for reading, please share this article and subscribe for future articles!

 

Footnotes:

The Chemicals in Plastic and Why it Matters, Part 2

Last updated on March 6, 2022.

Colorful plastic litter organized by color on a beach.
Image by Filmbetrachter from Pixabay

Plastics are made from chemicals and petroleum, which you read about in Part 1 of this series. Today, I want to tell you about the chemical contents of plastics by resin code, the number on the bottom surrounded by a triangle. More importantly, I want to inform you of the ways they may be toxic to our health.

Resin Identification Codes (RICs)

Resin symbol for #1 plastic, or PET.
Image by OpenIcons from Pixabay

The plastics industry created RICs in 1988 as part of their campaign to boost plastic’s image. They even lobbied to have state legislatures adopt them. But this little symbol on almost all plastic packaging is misleading. Many assume that the recycling symbol or RIC means that a package is automatically recyclable. However, that is not true, it actually only refers to the type of plastic resin used.

To reduce confusion, ASTM, the organization that regulates the RIC system, updated the symbol from the chasing arrows to a solid triangle in 2013. “However, manufacturers aren’t required to change their equipment to incorporate the new symbol, which is why you still see the arrows on many plastic products,” according to an article on Oceano.org.1 So it’s still easy for people who don’t know to mistake the RIC as a recycling symbol versus an industry tag for the plastic.

Graphic comparing the types of recycling symbols used with RICs.

A clear plastic PET food container showing the updated symbol, a numbe 1 inside of triangle.
Example of a plastic PET food container showing the updated symbol. Photo by me

“Thanks to the intelligent strategy that the plastic industry came up with in the early 1980s of imprinting a recycling code on the most commonly consumed plastic items, a large majority of consumers think that the bulk of the plastics they consume are recyclable and actually do get recycled through their local curbside recycling program. In reality, only a small percentage of the contents of a recycling box is recycled.”2

The RICs / Types of Plastics

Resin Identification Coding System graphic
Image courtesy of Wikimedia Commons

Next, let’s look at the 7 RICs and types of plastics, what they are used for, their characteristics, their chemical contents, and their potential toxicity. Note that this is not an exhaustive list; nor is each category exhaustive in the standard products or characteristics.

“Despite how useful these additives are in the functionality of polymer products, their potential to contaminate soil, air, water and food is widely documented…These additives can potentially migrate and undesirably lead to human exposure via e.g. food contact materials, such as packaging.”3

#1 PET/PETE: Polyethylene terephthalate

Standard products: Water bottles, soda bottles, salad dressing bottles, food containers such as cooking oil and peanut butter, wrinkle-proof clothing, fleece blankets, padding in pillows and comforters, carpeting, other polyester fabrics.

About: PET is the most valuable type of plastic and the most recycled. There are typically two types: one is made with a blow molding machine; the other is thermoform which is made by heating a plastic sheet until pliable and then molded into a specific shape. The main difference is in molecular weight. Higher molecular weight items, such as bottles and jugs made from blow molding, are more valuable than their thermoform counterparts. Thermoform, though more difficult to sell, is often recycled into carpeting.4

Chemical content: “A chemical called antimony trioxide is used as a catalyst and flame retardant in making PET, and this antimony additive is considered a possible carcinogen.” The amount in one single water bottle is minimal, but leaching increases with heat. Think of those water bottles stored in the car during the summer. “There is research showing that PET may leach phthalates too, even though the plastics industry says that phthalates are not required to make PET.”5 Regardless, think about switching to metal or glass containers whenever possible.

Close-up of clear blue water bottles
Image by pasja1000 from Pixabay

#2 HDPE: High-density Polyethylene

Standard products: Milk jugs, water bottles, juice, bottles, bleach, dish and laundry detergent bottles, shampoo and conditioner bottles, cleaner containers, over-the-counter medicine bottles, cereal box liners, Tyvek home insulation, plastic-wood composites, snowboards, 3D printing filament, and wire covering. It is even used in some plastic surgery procedures.

About: This is one of the most widely used plastics because of its versatility. It is strong, flexible, cost-effective, moisture-resistant, and resistant to most chemical solvents. It has high tensile strength and has both a high-impact resistance and melting point. “The polyethylene polymer has the simplest basic chemical structure of any polymer, making it easy to process and thus extremely popular for low value, high volume applications.”6

Chemical content: While this is considered a ‘safer’ plastic for food and drink use, there is evidence that these release endocrine-disrupting chemicals, especially when exposed to UV. “The main leaching culprits are estrogen-mimicking nonylphenols and octylphenols, which are added to polyethylene as stabilizers and plasticizers.”7 Those chemicals disrupt the body’s hormones and can cause cancer, reproductive problems, birth defects, and other developmental disorders.

Angled photo of plastic milk jugs at the supermarket.
Milk jugs are typically #2 HDPE. Photo by me

#3 PVC: Polyvinyl Chloride

Standard products: Think all vinyl products. Shower curtains, medical bags, medical tubing, shrink wrap, children’s toys, binders, school supplies, plastic furniture, garden hoses, vinyl clothing and outerwear, wire and cable insulation, vinyl records, carpet backing, flooring, credit cards, clamshell packaging, plumbing pipes, vinyl siding, window frames, fences, decking, other construction materials.

About: “PVC can take on a staggering variety of personalities – rigid, filmy, flexible, leathery – thanks to the ease with which it can be blended with other chemicals.”8 PVC is versatile as it can be adapted to many applications depending on the plasticizing additives. It is strong and resistant to moisture and abrasion. It can be produced clear or colored. About three-quarters of all vinyl produced goes into construction applications.

Chemical content: PVC is known as the poison plastic because it leaches toxins for its entire life cycle and should be avoided whenever possible. Vinyl is manufactured by polymerizing a chemical called vinyl chloride. It can contain up to 55% additives, mainly phthalates. The chemicals it may release during its lifetime include cancer-causing dioxins, endocrine-disrupting phthalates, bisphenol A (BPA), lead, mercury, cadmium, and other heavy metals. “The problem with PVC is that its base monomer building block is vinyl chloride, which is highly toxic and unstable, thus requiring lots of additives to calm it down and make it usable. But even in its final ‘stabilized’ form, PVC is not very stable.”9 The additives leach out and you can inhale and ingest them.

White PVC pipes stacked at a manufacturer or store.
PVC pipes, photo by Dennis Hill on Flickr, Creative Commons license (CC BY 2.0)

#4 LDPE: Low-density Polyethylene

Standard products: Film applications like bags, such as those used for bread, shopping, dry-cleaning, newspapers, frozen foods, produce, and garbage. Also used for shrink wraps, linings for cartons and cups, container lids, some squeeze bottles, orthotics, and prosthetics.

About: LDPE is a soft, flexible, lightweight plastic material, known for its low-temperature flexibility, toughness, and corrosion resistance. But it is not recyclable in any practical sense. Citing data from the Environmental Protection Agency (EPA), one large recycling corporation noted that “the overwhelming majority of products made from LDPE end up in landfills…Dumping tons of LDPE in landfills can have devastating consequences…plastic buried in landfills can leach into the soil and introduce chemicals into the groundwater.” They can threaten marine life in coastal areas, and “lightweight plastic bags can be blown great distances by the wind, ending up in bodies of water where animals eat them or become tangled in them.”10 Plastic bags causes huge environmental problems.

Chemical content: These can leach some of the same chemicals as #2 HDPE plastic. It is a thermoplastic made from the polymerization of ethylene. While ethylene is considered a building block of plastic, it is highly flammable and reactive. It is created by Ethane Cracker Plants, which use an environmentally questionable process to extract the ethane to make ethylene. While difficult to avoid, steer clear of this plastic whenever possible.

Angled photo of the bread aisle at the supermarket.
Bread bags are typically #4 LDPE. Photo by me
Blue plastic cap from a gallon milk or water jug, #4 LDPE plastic.
Blue plastic cap from a gallon water jug, #4 LDPE plastic. Photo by me

#5 PP: Polypropylene

Standard products: Polypropylene is used in packaging, yogurt cups, sour cream and soft cheese containers, prescription bottles, butter/margarine containers, plastic to-go containers, leftover containers, freezer meal containers, the filter cases of some disposable home water filters, electrical wiring, and plastic bottle caps because polypropylene can withstand pressure. It is also used in vehicles for bumpers, carpets, and other parts. Polypropylene allows moisture to escape and stays dry, making it ideal for use in disposable diapers.

About: Polypropylene is sometimes referred to as the “safe” plastic, but there really is no safe plastic when it comes to food. All plastic has the capacity to poison us in certain circumstances. Polypropylene is a stronger plastic than other types, but it is generally not recyclable because there isn’t sufficient reprocessing capacity. Polypropylene is more stable and resists heat better than other plastics. So it is generally considered safer for foods and hot liquids because it leaches fewer chemicals (though it still does leach, which is why you should use glass or metal containers for your food).11 However, this is what many leftover and freezer meal containers are made from. Have you ever noticed rough patches or surface defects in your leftover containers? Any disruptions on the surface mean the polypropylene has been compromised, which increases the chances that it will leach chemicals into your food, especially when heating it.

If you have polypropylene leftover containers from before 2013, replace them. These contained phthalates and bisphenol A (BPA). And if you do replace them, please buy stainless steel or glass containers and just avoid the chemicals in plastic altogether.

Chemical content: Polypropylene is a rigid and crystalline thermoplastic made from the polymerization of the propene monomer. There is ongoing research about the health effects of certain additives leaching from polypropylene, such as oleamide, a polymer lubricant and a bioactive compound. Oleamide does occur naturally in the human body, but the long-term effects of synthetic oleamide are not yet known. In a 2021 study entitled “Plastic additive oleamide elicits hyperactivity in hermit crabs,” scientists found that it may be perceived as a feeding cue by marine species, thus increasing the consumption of microplastics.12

Angled photo of the yogurt shelves at the supermarket.
Yogurt and other dairy containers are typically #5 polypropylene. Photo by me

#6 PS: Polystyrene

“Most recognizable when puffed up with air into that synthetic meringue known technically as expanded polystyrene and popularly by the trademark Styrofoam.” -Susan Freinkel, author of Plastic: A Toxic Love Story13

Standard products: The foam form, called Expanded Polystyrene (EPS), also known as Styrofoam, is used in egg cartons, meat trays, single-use food and take-out containers, coffee cups, vehicles, bike helmets, packing peanuts, and home insulation. The rigid form is used for single-use food containers, cutlery, CD and DVD cases, disposable razors, etc. “It is also combined with rubber to create an opaque high impact polystyrene used for model assembly kits, coat hangers, electronic housings, license plate frames, aspirin bottles and medical and lab equipment, including test tubes and petri dishes.”14

About: It may be difficult to avoid this stuff in home insulation, vehicles, and bike helmets, but it should be avoided at all costs when it comes to food and beverages. I wrote a lot about polystyrene in my series on Styrofoam and polystyrene food containers. These containers and cups leach styrene into food and beverages and thus enter your body. Styrene is known to likely be carcinogenic. It is considered a brain and nervous system toxicant and causes problems in the lungs, liver, and immune system.

Chemical content: Polystyrene is a synthetic polymer made from the polymerization of styrene. It is a chemically produced plastic that can be made into a hard or foam plastic. The foam is created by expanding the styrene by blowing various chemical gases into it. Polystyrene is made from ethylene and benzene, both hydrocarbons derived from by-products of petroleum and natural gas (also known as petrochemicals).

Take-out in polystyrene containers
Image by albedo20 on Flickr, Creative Commons license (CC BY-NC-ND 2.0)

#7: OTHER Plastics

This is the catch-all category for all ‘other plastics.’ Any plastic items not made from the above six plastic RICs are grouped together as #7’s. These include acrylic, nylon, polycarbonate, epoxy resins, polylactic acid (PLA), and multilayer combinations of different plastics. These are never recyclable except through a few rare and expensive take-back programs, because of the vast array of resins and chemicals mixed together. Below are some of the individual plastic types that fall under #7.

Acrylic: This is a rigid thermoplastic that is strong, diverse, and resilient; and it can be clear or solid colored. Acrylics are used to make bulletproof windows, LEGOs, dental fillings and dentures, airplane windows, aquariums, shower doors, vehicle parts, helmets, and even textiles such as clothing, tents, and sails. This is a stable plastic and is considered a ‘safer’ plastic, except for certain ones used in dental applications. Those, specifically acrylic methacrylate resins, are suspected to be cytotoxic (toxic at the cellular level) because they leach chemicals such as formaldehyde and methyl methacrylate.15 That being said, keep those LEGOs out of your toddler’s mouths.

Red, blue, white, yellow, and black Legos in a small pile.
Photo by Alexas_Fotos on Pixabay

Nylon: This belongs to a group of plastic resins called polyamides that include Kevlar and Velcro. Invented by DuPont in the 1930s, nylon was originally invented to be a synthetic alternative for silk, for example, stockings. Nylon can be fiber, solid, or film. Items made from it include clothing, toothbrush and hairbrush bristles, rope*, instrument strings, tents, parachutes, carpets, tires, food packaging, boat propellers, skateboard wheels, and mechanical and automotive parts.

DuPont advertisement for Nylon from 1949, showing woman pulling up her Nylon stockings.
DuPont advertisement for Nylon from 1949. Image by clotho98 on Flickr, Creative Commons license (CC BY-NC 2.0)

*NOTE: Most rope and nets used in commercial fishing are made from nylon and present a huge problem in the oceans. The rope and nets break away from the fishing vessels and become threats to fish, sea turtles, and marine mammals who get entangled in them. Since nylon is plastic, it will not decompose and will remain in the ocean for decades or longer.

Seal on beach with nylon fishing net entangled around its neck.
Nylon fishing net entangled around the neck of a seal. Image by Noutch from Pixabay

Polycarbonate: Originally designed as an engineering plastic to compete with die-cast metal and substitute glass because it is lightweight, strong, transparent, and shatter-proof. In the past, it was used in reusable water bottles and baby bottles until bisphenol A (BPA) was ruled toxic. “It is still a favorite for rigid products including CDs and DVDs, eyeglass lenses, dental sealants, lab equipment, snowboards, car parts and housing for cell phones, computers and power tools.” It is also still used in the large, blue water containers common in offices.16 This type of plastic is good for items not related to food or beverage. However, we should use it less overall in other applications when possible to reduce waste, because when polycarbonate breaks it cannot be recycled.

Epoxy resins: Known for high strength, low weight, temperature and chemical resistance. Used in many applications: high-performance adhesives, coatings, paint, sealant, insulators, wind turbine blades, fiber optics, electrical circuit boards, and parts for carts, boats, and planes. They are also used on the interior lining of most canned goods. Avoid these when possible, especially with food and beverage containers because they contain chemicals such as bisphenol A (BPA) and epichlorohydrin. The latter likely causes blood, respiratory, and liver damage and is a probable carcinogen.17

Polylactic Acid (PLA): This is a bio-based plastic made from lactic acid, which is a fermentation product of corn or cane sugar. This is the most common bioplastic, used in a variety of products including clothing, bottles, weed cloth, gift and credit cards, food packaging, diapers, wipes, and disposable dishes. PLA is advertised as compostable but it is only biodegradable under industrial composting conditions, which is still largely unavailable.18

Polyurethanes

This large family of plastics was introduced in 1954. Polyurethanes do not have an assigned RIC, but they are worth mentioning because they are so common. They come in foamed versions that are soft and flexible for uses in mattresses, cushioning in furniture, cars, and running shoes, spray foam insulation, and carpet underlay. They can take on a flexible form for hoses, tubing, gaskets, seals; and they can be tough and rigid for items such as insulating lining for buildings and refrigerators. Polyurethane can also be made into thin films or coatings, such as adhesives for food packaging and waterproof coatings for wood. When it is spun into fibers, it makes Spandex, Lycra, and even latex-free condoms.19

Polyurethane is made from isocyanates, a chemical that is potentially toxic, as it is the leading cause of occupational asthma. “As for our day-to-day use, polyurethanes have also been linked to a skin irritation known as contact dermatitis through direct contact with such polyurethane items as a toilet seat, jewelry and Spandex tapes sewn into underwear.” It is highly flammable and may contain flame retardant additives that go in mattresses and spray foam insulation. Flame retardants are full of chemical combinations that are considered trade secrets, so the public does not know what potential toxins are present in their items. Spray foam insulation, even once cured, can off-gas isocyanate methylene diphenyl diisocyanate (MDI), which has been linked to asthma and lung damage.20

Person in white Hazmat suit applying purple spray foam insulation.
Image by justynkalp from Pixabay

What You Can Do

The best thing you can do is to keep learning, which you’re already doing if you’re reading this article. Stay informed and be aware of what chemicals you’re exposed to through plastics, packaging, and additives. Avoid those which are documented as toxic or even potentially toxic. Additionally, remember that few plastics are actually recycled, so reducing the plastics you purchase is essential to the environment and your health. Thank you for reading, please share and subscribe!

“We all need to separate the hopeful and increasingly fantastical act of recycling from the reality of plastic pollution. Recent data indicates that our recycling wishes, hopes, and dreams – perhaps driven in part by myths surrounding RICs – will not stop plastic from entering our oceans. Instead, if we truly want to protect the environment and marine life, we need to campaign for more plastic-free choices and zones, and for the reduction of plastic production and pollution.”21

 

Additional Resources:

11 Ways to Go Plastic-Free with Food

To learn more about Bioplastics: The Packaging Industry and How We Can Consume Differently, Part 3

The different types of plastics used in packaging: Guide to my Packaging Industry Series

More about polystyrene #5: Guide to my Styrofoam and Polystyrene Containers are Poisoning Your Food Series

Article, “An overview of chemical additives present in plastics: Migration, release, fate and environmental impact during their use, disposal and recycling,” by John N.Hahladakis et al., Journal of Hazardous  Materials, Volume 344, February 15, 2018.

Footnotes: