Tuesday, August 31, 2021

Plastic Recycling Codes


As per research only 9% of plastic can be recycled. As a consumer it is necessary to know about plastic recycling, recycling symbols and how to recycle the plastic good.   Plastic have Resin Identification Code (RIC) on plastic good. RIC is used to convey plastic properties and recycling  information.
 
Polyethylene terephthalate (PETE/PET)

Plastic #1 is usually clear in color and it is not intended for multiple uses. It needs to be stored in cool environments. It is commonly used in disposable beverage bottles, food containers/bottles, household cleaning product containers/bottles, cooking oil bottles, and medicine containers. It allows bacteria and odor to accumulate because of its porous nature. So it is only for one time usage. It is relatively safe if it is not heated else it will cause carcinogens leach.
Recycling : Yes 
High-Density Polyethylene(HDPE)
Plastic #2 is usually opaque. It is commonly used in milk jugs, juice bottles, detergent , toiletries containers, toys and playground equipment. It is safe and low risk of leaching. 
Recycling : Yes. can be easily and efficiently recycled up to 10 times.

Polyvinyl Chloride (PVC )
Plastic #3 contains softening chemicals called phthalates to make the item strong and elastic. It is commonly used in food wrap, bottles for cooking oil, shower curtains, inflatable mattresses,  common plumbing pipes, clear medical tubing, vinyl dashboards and seat covers. Phthalate is an Endocrine-disrupting chemical. It affects the hormonal and endocrine system. It is not considered safe for cooking or heating. DEHA may be produced during the plastic #3 lifecycle and is a highly toxic chemical. This affects children’s brain development, immune and endocrine system. These harmful chemicals also cause cancer. 
 Recycling : Rarely accepted by recycling programs. 
Low-density polyethylene (LDPE) 
Plastic #4 is commonly used in grocery bags, some food wraps, squeezable bottles, and bread bags. This plastic is considered to be relatively safe but is not environment friendly. 
Recycling : It is accepted by specific recycling facilities 
Polypropylene (PP)
Plastic #5 is commonly used in ketchup bottles, yogurt cups, medicine , kitchenware and “microwave-safe” plastic containers, plastic caps of soda bottles, disposable diapers. Polypropylene is considered microwave-safe because it is heat resistant and therefore won’t get warped in the microwave. PP is considered a safe plastic if it is not used in the microwave for heating. 
Recycling : It is now accepted by most curbside recycling programs. 
Polystyrene, or Styrofoam 
Plastic #6 is commonly used in plastic cups, disposable cutlery , disposable containers and food ware, packaging. Research suggests that this type of plastic leaches potentially toxic chemicals, especially when heated. It would be wise to avoid #6 plastic as much as possible. 
Recycling : It is difficult to recycle and only accepted by specific recycling facilities. Even worse, when not recycled, it takes hundreds and hundreds of years to decompose! 
Plastic that does not fall in any of 1-6 categories is considered as plastic #7. Plastic #7 is composed of any new plastics, including bioplastics, Polycarbonate and highly toxic BPA. It is commonly used in water bottles, sports equipment, medical and dental devices and some computer and other technological parts. Use this category of plastic at your own risk
Recycling :  It is difficult to recycle #7 plastic and most of the recycling programs won't accept it.

Word of caution : Avoid use of plastics as much as possible. 

Relatively safe plastics categories: plastic #2, plastic #4 and plastic #5. Be weary of putting them in the microwave, even if they are labeled “microwave-safe”. 

Plastic to be used with caution: plastic #1, plastic #3, plastic #6 and plastic #7 

Try to stick to glass, metal, bamboo or other such reusable body and environment friendly materials.

Do you want to check your plastic footprint ?

(This shared file is available to all registered subscribers. If you are not able to access the file then kindly send an email to  - weresilient21@gmail.com or subscribe to blog  https://weresilient.blogspot.com/p/subscribe-to-blog.html)

To know the impact of plastic on health -

Reference:
https://blog.nationalgeographic.org/2018/04/04/7-things-you-didnt-know-about-plastic-and-recycling/  

Dr. Snehal Kamalapur
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Thursday, August 12, 2021

Plastic and Health

 


Earth is drowning with plastic. Look around you and plastic is everywhere. We are using plastic products from head to toe.  Can you think of life without plastic? 

What is Plastic, Single use Plastic, Micro-plastic ?

Plastic is a synthetic organic polymer. It is ideally suited for a wide variety of applications. Single-use plastic products (SUPs) are designed to use it once, or for a short period of time. Microplastics are tiny plastic particles less than five millimeters (0.2 inches) in diameter. Secondary microplastics are particles that result from the breakdown of larger plastic items, such as water bottles.

Plastic is used by the majority of people because of ease of use, cost effective, variety, availability, durability and lack of alternatives. But concern is its impact on environment and health.

Impacts of endocrine-disrupting chemicals present in plastic on health

Plastic may contain and leach hazardous chemicals, including Endocrine-disrupting chemicals (EDCs). These EDCs are harmful to human health. These chemicals disturb the body’s hormone systems. Some of them are listed here -

Bisphenol A

Bisphenols such as bisphenol A (BPA) can be found in reusable food and beverage containers. BPA leaches from food contact materials into foods and beverages. It leaches from landfills to contaminate wastewater, groundwater, and freshwater.
Impact of BPA on Health : 
  • Affect brain development and behavior
  • Increase anxiety, depression, hyperactivity, inattention, behavioral problem 
  • Affect fertility 
  • Increase risk of Polycystic Ovary Syndrome (PCOS) 
  • Increase risk of diabetes. 

Phthalates 

Phthalates are used as plasticizers in PVC consumer, medical, and building products, food and beverage packaging, and as fillers in children’s toys. Phthalates leach from items like food packaging, cosmetics and toys into the environment and into products that humans use and consume.
Impact of Phthalates on Health :
  • Reduce testosterone and estrogen levels
  • Block thyroid hormone action
  • Decrease pregnancy and high miscarriage rates, anemia, toxemia, early menopause 
  • Increase the risk of insulin resistance
  • Elevate blood pressure, obesity, elevated levels of triglycerides

Perfluorinated Compounds 

Perfluorinated Compounds are widely used in water and stain-resistant clothing, food contact wrappers, cookware, food-contact materials such as non-stick cooking surfaces and food-contact papers such as pizza boxes, microwave popcorn bags, baking papers, and other paper wrap. PFAS leaches from wrappers and cookware into our food. It leaches from landfills to the local water system. 
 Impact of Perfluorinated Compounds Health
  • Affect the immune systems, liver, and thyroid function 
  • Alter puberty 
  • Raise breast cancer risk, and ovarian cancers 
  • Affect kidney, testicular, prostate function 

Dioxins 

Dioxins, considered the world’s most toxic substances. Children mouthing toys made of recycled plastic that derives from e-waste may contain Dioxin. Dioxin exposures can occur through oral, dermal and inhalation routes. 
Impact of Dioxin on Health : 
  • Affect brain development 
  • Disrupt thyroid and immune system functions 
  • Increased risk of multiple cancers, and 
  • Damage immune system 

Ways to reduce Plastic Usage 

Following are suggestions to reduce use of plastic - 
  • Avoid eating foods stored in plastic 
  • Carry out own water and stop buying packaged water 
  • Don't use disposable plastic cups for tea/coffee 
  • Always carry your own shopping bag 
  • Swap out plastic containers labeled with codes 3, 6, and 7 
  • Do not give young children plastic teethers or toys 
  • Replace vinyl products like place mats, floors and shower curtains. 
  • Do not heat plastic
  • Avoid the plastic wrap whenever possible 
  • Use non-plastic straws
  • Shop in bulk 
  • Store your food in glass or steel containers 
  • Use natural fiber clothing, bedding and furniture 
Take a Step no matter how small. Follow 5Rs Rethink, Reduce, Reuse, Recycle and Remove. Discover more sustainable solutions and share with others. 

Do you want to check your plastic footprint ?

(This shared file is available to all registered subscribers. If you are not able to access the file then kindly send an email to  - weresilient21@gmail.com or subscribe to blog  https://weresilient.blogspot.com/p/subscribe-to-blog.html)

Reminder 

The Prime Minister of India Hon. Narendra Modi has announced the country would completely phase out Single-use plastics (SUPs) products by July 1, 2022.

Reference : 
  • https://plasticoceans.org/infographic-about-humans-eating-plastic/
  • https://ipen.org/sites/default/files/documents/edc_guide_2020_v1_6ew-en.pdf
Coming soon - Significance of number on plastic goods 

Dr. Snehal Kamalapur
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