Microplastics: How They Get There, Health Risks & How to Minimize Exposure
Your yogurt containers are probably made of polypropylene (PP), or #5 plastic, which does not contain BPA, an estrogenic chemical that we know to be harmful. The #7 plastic is the one that may contain BPA. So the yogurt containers may be safe to reuse, although a recent study in Environmental Health Perspectives indicates all types of plastics used in food containers, beverage cans, plastic bottles, and wrappers can release estrogenic activators if reused repeatedly, and we know that such chemicals can be harmful. It may well be that the amounts released are too small to cause problems, but if you want absolutely certain safety, store food in glass containers only. If you do reuse plastic containers, follow the Environmental Working Group’s advice, and only use #1, 2, 4, or 5, although one study shows that higher temperatures can cause the release of the heavy metal antimony from #1, PET. And since heat intensifies the release chemicals, never microwave with any type of plastic container and don’t put hot food in it. Regarding the plastic bags, I doubt that they pose a problem, since there is no liquid in bulk items to leach anything out like there is with most leftovers. But to play it super safe, you could avoid storing grains, beans, nuts, or flour in the bags.
As noted, many #7 plastic containers contain BPA, and although the BPA is being phased out, you should not use any #7 container unless you are sure it is BPA-free. The most frightening thing is that some baby bottles, toys, and sippy cups contain BPA, to which to fetuses and children are more vulnerable than adults.
Also, BPA lurks in other places, including the lining of some metal water bottles and in food and beverage cans at possibly harmful levels, according to a study by EWG. I hate to break this news, because canned foods are an excellent way to preserve the solar energy and vitamins from a summer’s harvest.
While the food industry denies that BPA can reach hazardous levels in food, the jury is still out. Evidence of the dangers have prompted the EPA and the National Institutes of Health to conduct further research on the substance. Households that consume a lot of canned food and beverages, especially of they have children, may want to consider cutting back until we get the results of that study.
So, although reuse is usually preferable to recycling, in the case of plastic food and beverage containers, recycling is a better choice. Besides, the plastic industry is desperate for more of the stuff. While U.S. capacity for PET (plastic bottles) recycling alone is estimated at almost 1.9 billion pounds, only 20 percent of the PET even gets collected here, and of that, only about 642 million pounds make it to U.S. companies. The other 800 million pounds is, like so many of our jobs, outsourced to foreign factories.
In recent years, concerns about the safety of bottled water have surged, especially with growing evidence of micro plastics and nano plastics contaminating our water supply. These tiny plastic particles, invisible to the naked eye, have raised alarm bells among health experts and environmentalists alike, and there’s no doubt that bottled water microplastics have become a significant concern due to their potential health risks.
In fact, research shows high levels of microplastics in bottled water. For instance, Columbia University and Rutgers University researchers found approximately 240,000 detectable plastic fragments in a typical liter of bottled water.
Another study conducted by Orb Media tested 259 bottles from 11 different brands and found that 93 percent of the samples contained micro plastic contamination. The study identified an average of 325 plastic particles per liter of water.
These plastic nanoparticles, often less than five millimeters in size, can infiltrate your drinking water through various means.
Let’s explore what microplastics are, how they end up in bottled water, their health risks and how you can minimize exposure.
What Are Microplastics?
Microplastics are plastic particles less than five millimeters in size, originating from various sources such as the breakdown of larger plastic debris, industrial processes and personal care products. Nanoplastics are even smaller, measuring less than 100 nanometers.
Both types of plastic particles are pervasive in the environment, making their way into oceans, rivers and even the air we breathe.
Recent studies show that bottled water can contain both micro plastics andeven smaller nano plastics, which pose unique challenges due to their minute size.
How Do Microplastics Get Into Bottled Water?
Microplastics can enter bottled water at multiple stages of the production process:
1. Source water contamination
Natural water sources, including springs and aquifers, can be contaminated due to environmental pollution. These particles are difficult to remove through conventional water treatment plants.
2. Bottling process
During the bottling process, microplastics can leach into the water from the plastic bottles and caps themselves. Polyethylene terephthalate (PET) and other polymers used in bottle manufacturing degrade over time, especially when exposed to sunlight and heat.
3. Production process
During the bottling process, microplastics are found in the machinery and filtration systems used. For example, polyamide particles, a type of nylon, are found to contaminate bottled water through plastic filters used for purification.
4. Packaging and storage
Microplastics can also enter bottled water during storage and transportation. Improper handling and exposure to fluctuating temperatures can exacerbate the release of microplastics from the bottle into the water.
Health Risks of Bottled Water Microplastics
The ingestion of microplastics and nanoplastics through bottled water poses several potential health risks:
1. Toxic chemical exposure
Microplastics can act as carriers for toxic chemicals such as bisphenol A BPA, phalates and other harmful substances. These chemicals can disrupt endocrine functions and lead to various health issues such as develpment malformations, interference with reproduction, great risk of cancer, and immune and nervous system function disturbances.
2. Inflammatory responses
Microplastics can cause inflammation in the body, potentially leading to conditions such as gastrointestinal inflammation and other related diseases.
3. Cellular damage
Nanoplastics, due to their extremely small size, can penetrate cellular membranes, contributing to oxidative stress and cellular damage, interfering with normal cellular functions and may contribute to chronic diseases.
4. Bioaccumulation
5. Organ and tissue damage
Microplastics are toxic and cause damage to tissues and organs when they accumulate in significant quantities.
6. Further exposure to pollutants
Microplastics transport other pollutants, including heavy metals and organic toxins, potentially introducing them into the human body when ingested.
How to Minimize Exposure
While it may be challenging to avoid microplastics entirely, there are several steps you can take to minimize your exposure:
1. Choose glass or stainless steel
Choose water stored in glass or stainless steel containers instead of plastic bottles. These materials are less likely to leach harmful particles into the water.
For instance, studies have shown that glass bottles tend to have lower levels of microplastic contamination compared to plastic bottles.
2. Use water filters Invest in high-quality water filters that are capable of removing microplastics and helping remove tap water toxicity. Look for a filter with a pore size small enough to capture even the tiniest particles.
3. Avoid single-use plastics
Reduce your consumption of single-use plastics, which cause pollution and the breakdown into microplastics. Use reusable water bottles and other sustainable alternatives.
4. Stay informed
Keep abreast of the latest research on microplastics and water safety. Awareness is key to making informed choices about the water you consume.
Conclusion
The presence of microplastics and nanoplastics in bottled water is a pressing issue that requires immediate attention. While the full extent of their health impacts is still being studied, it is clear that reducing exposure to these contaminants is essential.
By making conscious choices about the water you drink and the containers you use, you can protect yourself and contribute to a healthier environment.
Stay informed, choose wisely and advocate for cleaner, safer water for all.
Are ‘Forever Chemicals’ In Your Favorite Sparkling Water?
Here’s What to Know
Many brands have PFAS levels of more than 1 part per trillion, exceeding the Environmental Working Group’s recommendation.
Another day, another potential toxin in one of your favorite products to worry about. This time, it’s PFAS in sparkling water.
PFAS, short for per- and poly-fluoroalkyl substances, are chemicals designed to withstand water, oil, grease, and heat, which may sound ideal for food packaging. Until you learn that these chemicals take at least a century to break down in the human body, and much longer in our environment, and like many man-made substances approved for extensive use, they’re much less safe than we thought.
FOOD & WINE / LA CROIX BEVERAGES INC. / THE COCA-COLA COMPANY / POLAR BEVERAGES
Linked to cancer, autoimmune disease, thyroid problems, and more health issues, PFAS’ toxicity is worrying, and still being studied. And unfortunately, PFAS are prevalent throughout our environment, from the seafood to water.
How to Mitigate Your Exposure to ‘Forever Chemicals”
Bottled and canned water is often considered a healthier or safer option, thanks to purification and processing. But that may not necessarily be the case. In 2020,Consumer Reports ran a study to determine PFAS levels in 47 bottled waters, including 35 non carbonated and 12 carbonated samples. Many of the carbonated waters had PFAS in them.
Perrier Natural Sparkling Mineral Water, La Croix Natural Sparkling Water, Canada Dry Lemon Lime Sparkling Seltzer Water, Poland Spring Zesty Lime Sparkling Water, Bubly Blackberry Sparkling Water, Polar Natural Seltzer Water, and Topo Chico Natural Mineral Water all had PFAS levels higher than 1 part per trillion.The Environmental Working Group (EWG) recommends only drinking water with less than 1 ppt of PFAS. Meaning, yes, sparkling water can be potentially problematic.
San Pellegrino sparkling water has PFAS, but at levels that are considered safe. As of July 2023, Yahoo reported that San Pellegrino’s PFAS levels are 0.31 parts per trillion (ppt), while levels below 1 ppt are considered safe. Other sparkling waters with low PFAS levels include:
- Sparkling Ice Black Raspberry Sparkling Water: No detectable levels
- Spindrift: 0.19 ppt
- Dasani: 0.37 ppt
- Schweppes: 0.58 pp
Luckily for seltzer drinkers, improvements can be made. After pledging to create a healthier product following the Consumer Reports study, Topo Chico halved the amount of PFAS in its sparkling water, from 9.7 parts per trillion to 3.9 parts per trillion by 2021. Still, that’s higher than the suggested intake, but it’s a start.
Seltzers are commonly believed to be healthier than sugar-packed sodas, but recent research is bringing down their cred. For many, sparkling water is a great way to hydrate and drink the water necessary for overall health. For others, sparkling water can cause gut issues including bloating and reflux. If sparkling water triggers IBS or other digestive symptoms, it may be time to cut back on the bubble habit. Seltzers with sweeteners or additives, like artificial flavors, can also be detrimental to gut health, equivalent to, say, a Diet Coke. Something to smile about: Seltzer is healthier than soda any day.
This April, the Biden-Harris Administration announced the first-ever legally enforceable drinking water standard, in order to protect Americans from PFAS-contaminated water. And while that infrastructure project is in the works, there are a few ways you can remove PFAS from your water at home.
First, you can test your tap water with a home test kit or through a local environmental agency. If PFAS are found, you can try removing them at home. Unfortunately, boiling water to sanitize it doesn’t work with forever chemicals, but Consumer Reports tested several faucet filters and a refrigerator filter to extricate PFAS from your water. From there, you can also make sparkling water at home with a counter top machine.
You can’t control what’s in your bottled water, but purifying and carbonating your water at home may be the safest and healthiest option for sparkling water lovers.