Chloe Zhang
Plastic Number 7 is a category that includes all other types of plastics that do not fit into categories 1 through 6. This catch-all category includes plastics such as polycarbonate (PC), acrylonitrile butadiene styrene (ABS), and other plastics that are challenging to identify. Plastic Number 7 products tend to be more durable than disposable plastics and are found in various items, including reusable dishes and drinkware, home decor, and food containers. One of the concerns with Plastic Number 7 is the potential presence of the chemical Bisphenol A (BPA), which is known to be hazardous to health and the environment. However, it's important to note that not all items with Plastic Number 7 contain BPA, and proper recycling of these plastics is crucial to minimize their environmental impact.
| Characteristics | Values |
|---|---|
| Plastic Number | 7 |
| Other Names | Polycarbonate (PC), Acrylonitrile Butadiene Styrene (ABS) |
| Composition | Any new plastics, bioplastics, and items composed of different types of plastics |
| Use | Baby bottles, water bottles, sports equipment, medical and dental devices, CDs, DVDs, computer and other technological parts, Lego blocks, bulletproof glass, reusable plastic dishes and drinkware, home decor items, five-gallon water jugs |
| Recyclability | Difficult to recycle due to non-uniformity in chemical and physical composition. Not accepted by most curbside recycling programs. |
| Health and Environmental Concerns | May contain hazardous chemicals such as Bisphenol A (BPA), which is difficult to decompose and can have harmful effects on human health and wildlife. |
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What You'll Learn
- Polycarbonate plastic may contain BPA, a highly toxic chemical
- Polycarbonate is used in baby bottles, water bottles, and food containers
- Number 7 plastics are durable and found in reusable dishes, drinkware, and containers
- Number 7 plastics are rarely recycled due to their long lifespans and chemical composition
- Number 7 plastics may contain hazardous chemicals, so caution is advised when using and disposing of them
Polycarbonate plastic may contain BPA, a highly toxic chemical
Polycarbonate plastic, also known as Plastic Number 7, is a type of plastic that includes various items such as CDs and containers. This type of plastic falls under the catch-all category, encompassing all plastic types that do not fit into the first six categories. While polycarbonate plastic can be recycled, it is not always accepted in standard curbside recycling programs.
Polycarbonate plastic may contain Bisphenol A (BPA), a highly toxic chemical. BPA is one of the highest-volume chemicals produced worldwide and is used in the manufacture of polycarbonate products. Research has raised concerns about the potential health effects of BPA exposure. Studies have found that BPA can leak in trace amounts from polycarbonate containers and linings into foods and drinks.
The health risks associated with BPA exposure are particularly concerning for children. The National Institute of Environmental Health Sciences (NIEHS) notes that babies and young children are at greater risk due to their higher consumption of food and drinks per pound of body weight, resulting in increased BPA exposure. Additionally, certain foods and heat can accelerate the leaking of BPA into consumables.
To address these concerns, several countries and states have taken regulatory actions. For example, Canada and some U.S. states have banned the use of BPA in polycarbonate baby bottles and other products intended for infants and children. Similarly, in 2012, the FDA prohibited the use of BPA in baby bottles and sippy cups to reduce human exposure, particularly in vulnerable populations.
It is important to note that polycarbonate plastic is prevalent in modern life, and reducing exposure to BPA can be challenging. However, individuals can take proactive steps to minimize their exposure, such as avoiding the use of polycarbonate containers, especially for storing hot beverages, and opting for alternative materials like glass, porcelain, or stainless steel for food and drink storage.
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Polycarbonate is used in baby bottles, water bottles, and food containers
Polycarbonate plastic is strong, impact-resistant, and clear, making it ideal for baby bottles, water bottles, and food containers. It is also used in eyeglass lenses, compact discs, dental sealants, and plastic dinnerware. Polycarbonate plastic bottles are easy to sterilize and do not absorb odours. They are marked with a No. 7 recycling symbol.
Polycarbonate plastic is commonly used for baby bottles because it is clear and nearly shatter-proof. However, there are concerns about the potential health effects of a chemical used in its manufacture—bisphenol A (BPA). BPA has been linked to possible endocrine disruption and an increased risk of cancer. Exposure to BPA is particularly harmful to babies and young children, as they consume more milk or formula per pound of body weight than adults.
In 2008, the Canadian Health Minister announced plans to ban the import, sale, and advertising of polycarbonate baby bottles containing BPA. Several retailers, including Wal-Mart, Nalgene, and Toys-R-Us, also stopped selling baby bottles and other products containing BPA. While the U.S. Food and Drug Administration (FDA) maintains that BPA is safe, some organizations, like Health Canada, have expressed concern about the potential risks, especially for infants.
To address these concerns, it is recommended to use baby bottles and sippy cups that are BPA-free. Bottles manufactured before 2012 may contain BPA. Additionally, it is advised to avoid heating polycarbonate containers in the microwave, as the plastic may break down over time when exposed to heat. When possible, opting for fresh or frozen foods over canned goods can help reduce BPA exposure, as polycarbonate is often used as a resin lining in metal food and drink cans.
Polycarbonate plastic falls under the category of Plastic Number 7, which includes various types of plastics that do not fit into the first six categories. This category is associated with BPA, and products made from this plastic may contain the toxic chemical. While polycarbonate can be recycled, it is not always accepted by curbside recycling programs, and it is important to check with local authorities before attempting to recycle it.
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Number 7 plastics are durable and found in reusable dishes, drinkware, and containers
Number 7 plastic is a category that includes all other types of plastics that are not in categories 1 to 6. It is a catch-all category for any new plastics, including bioplastics, and items composed of multiple types of plastics. Number 7 plastics include polycarbonate (PC), acrylonitrile butadiene styrene (ABS), and other plastics that are hard to identify.
It is important to note that not all number 7 plastics contain the chemical Bisphenol A (BPA). Only polycarbonate items contain BPA, and these include baby and water bottles, sports equipment, medical and dental devices, CDs, DVDs, and some computer and other technological parts. It is recommended to dispose of any food or drink-related products that are known to contain BPA.
To avoid number 7 plastics with BPA, look for BPA-free labels or products made from acrylic, SAN/NAS, Tritan, polypropylene, and melamine plastics. Number 7 plastics that are BPA-free include plastic glasses, cups, and food containers.
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Number 7 plastics are rarely recycled due to their long lifespans and chemical composition
Plastic Number 7 is a catch-all category for all types of plastics that do not fit into categories 1 through 6. This includes new plastics, bioplastics, and items composed of multiple types of plastics. Number 7 plastics are often made from multiple plastic types or other types of plastic that are hard to recycle.
Number 7 plastics include polycarbonate, which is a clear, hard plastic that contains Bisphenol A (BPA). BPA is a hormone disruptor and a potential environmental hazard, and its presence means that many items made from polycarbonate cannot be put in your curbside recycling bin. It may be possible to recycle polycarbonate through a specialist recycler, but this is not always available.
Another plastic that falls under the Number 7 category is polylactic acid (PLA), a biodegradable plastic generally made from corn starch or sugar cane. It is commonly used in food packaging.
The difficulty and rarity of recycling Number 7 plastics are due to their long lifespans and chemical composition. Number 7 plastics often contain harmful chemicals that can leach into food products, especially when heated in a microwave. One of these chemicals is styrene, found in polystyrene, which is a possible human carcinogen. Bisphenol A (BPA) is another dangerous chemical found in Number 7 plastics, which can be released during the decomposition of plastics in landfills, contributing to aquatic pollution.
The Society of Plastics Industry, now known as the Plastics Industry Association, started the number system to identify the plastic resin content. The numbers inside the triangles on plastic items indicate the type of resin used to produce the plastic and provide information about its recycling possibility. However, the presence of a recycling symbol does not guarantee that an item can be recycled, and each local recycling facility collects different types of plastics.
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Number 7 plastics may contain hazardous chemicals, so caution is advised when using and disposing of them
Number 7 plastics are a category of plastics that include all other types of plastics not found in categories 1 to 6. This category can include plastics such as polycarbonate (PC), acrylonitrile butadiene styrene (ABS), and other plastics that are difficult to identify. Number 7 plastics are often more durable than disposable plastics and can be found in various household items, such as reusable plastic dishes, drinkware, home decor items, and food containers.
One of the concerns with Number 7 plastics is the potential presence of hazardous chemicals, such as bisphenol A (BPA). BPA is a compound that has been linked to possible health risks, including obesity, cancer, and endocrine problems in fetuses and children. It is important to note that not all Number 7 plastics contain BPA, but it is still advisable to exercise caution when using and disposing of these materials.
When it comes to recycling Number 7 plastics, it can be challenging due to the non-uniformity in their chemical and physical composition. They tend to have longer lifespans, which makes them less likely to be collected for recycling. However, some bio-based plastic items within this category, such as cornstarch-based or bamboo-infused plastic items, are marked as PLA and are compostable.
To minimise the potential risks associated with Number 7 plastics, it is recommended to reduce their use whenever possible. Opt for products made from safer and more sustainable materials, and support companies that prioritise environmental sustainability. If you must use Number 7 plastic products, choose those labelled as BPA-free and dispose of any food or drink-related products known to contain BPA. Properly recycle Number 7 plastics by seeking information about specialised recycling programmes in your community.
In summary, Number 7 plastics may contain hazardous chemicals like BPA, so it is important to exercise caution when using and disposing of them. Reducing the use of these plastics can help minimise their environmental impact and potential harm to human health.
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Frequently asked questions
Plastic number 7 is used for plastics that do not fit into categories 1 through 6. This includes multi-layer, mixed resin types, and durable plastics that are used for reusable dishes and drinkware, home decor items, and food containers.
Plastic number 7 includes a variety of plastics such as polycarbonate, ABS, and polypropylene. Some number 7 plastics may contain hazardous chemicals such as Bisphenol A (BPA), which is known to be harmful to human health and the environment. However, not all number 7 plastics contain BPA.
Plastic number 7 can be identified by the chasing arrows with a number 7 inside, usually located at the bottom, side, or top of the plastic object.
