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Dr. Jill Carnahan, MDDr. Jill Carnahan, MD

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Toxic PCB’s Are Everywhere – Here’s How To Protect Yourself

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PCB’s

There’s no denying that we live in an increasingly toxic world. Nearly everything we come in contact with seems to be contaminated. And there’s an endless number of harmful substances all around us. One of the toxic chemicals that’s been garnering more and more attention recently, are polychlorinated biphenyls – also known as PCB’s. 

These harmful chemicals are double trouble because even though they’ve been banned for over 30 years, they’re still showing up all over the place – meaning you’re likely exposed to them on a daily basis. Let’s dive into exactly what PCB’s are, why they are so dangerous, and exactly how you can protect yourself.    

What Are Polychlorinated Biphenyls (PCB’s)?

PCB’s are a class of highly toxic man-made chemicals. The term PCB’s doesn’t refer to a single chemical, but rather a group of related chemicals with similar properties. PCB’s can be found as solids, oily liquids, or even vapor.1

PCB’s are known for their chemical stability, resistance to extreme temperature and pressure, and electrical insulating properties. Because of this, they have been widely used in a number of different products including:2

  • Hydraulic or heat transfer equipment
  • Electrical equipment such as switchers, voltage regulators, or electromagnets
  • Plasticizers found in certain rubber, plastic, or paint products
  • Cable insulation
  • Fluorescent light ballasts
  • Some thermal insulation materials
  • Caulking
  • Floor finish
  • Certain adhesives or tapes

The production of PCBs was stopped in the United States in 1977 after their toxic effects in humans were discovered. But unfortunately, their harmful side effects are still in full effect.

How Are Humans Exposed To PCB’s?

While you may potentially be exposed to PCB’s if you come in contact with old products or equipment that was manufactured before 1977, the real threat with PCB’s is environmental contamination. PCB’s can end up contaminating the environment in a number of ways such as:3

  • Accidental spills or leaks from the transport of PCB containing chemicals
  • Improperly maintained hazardous waste sites
  • Illegal dumping of PCB containing compounds
  • The burning of waste containing PCB’s in industrial incinerators

But the problem doesn’t just end with their release into the environment. Because of their durability and resistance to breaking down, PCB’s can exist in the environment for long periods of time. 

Pair that with the fact that they exist as solids, liquids, or vapors and are easily cycled between soil, water, and air, and it’s easy to see why environmental exposure is rampant. Because of this, PCB’s are showing up everywhere – even in places you’d never expect. 

Main Sources of PCB Exposure

PCB’s are everywhere in the environment – it’s impossible to not be exposed to them on some level. But the primary routes of human exposure are food, water, and air. 

Food

Food is the number one source of PCB exposure. You may be exposed to PCB’s through: 

Animal Fat: Because PCBs can accumulate and be stored in fat, it is found in higher concentrations in high-fat animal products such as:4

  • Meat
  • Dairy
  • Poultry
  • Eggs

Fish: Because PCB’s attach to and build up in sediment, levels can become concentrated in fish – particularly those that are bottom feeders such as carp. In fact, PCB levels can be as much as 1 million times higher in certain aquatic animals than in the surrounding aquatic environment.4

Produce: PCB’s accumulate in dust and dirt, which can then settle on produce. Consuming fruits and vegetables that haven’t been properly washed can significantly increase your exposure to PCB’s.

Water

The government has established a maximum level of acceptable PCB contamination to maintain a safe drinking water standard.5 But since PCB’s build up in the soil, those who are’nt on a public water system can be at risk of consuming water with dangerously high PCB levels.

Air

PCB’s are almost always present in the air we breathe. It’s estimated that on average, outdoor air in urban areas contains approximately 5 ng/m3 concentration of PCB’s. But studies have found that indoor air is much more dangerous – with contamination levels being at least 10 times outdoor air levels.6 What’s even more concerning is the fact that most of us spend the vast majority of our day indoors inhaling this polluted air. 

What Are the Health Effects of PCB’s?

The health effects of PCB’s are serious and widespread – impacting nearly every body system. Some of the most notable health effects that have been associated with PCB’s include:6

  • Cancer: In both animal and human studies, PCB’s have been found to cause cancer, making them a carcinogen  Exposure to PCB’s has been directly linked to an increase in a rare form of liver cancer and malignant melanoma (skin cancer).
  • Immune Suppression: PCB’s have been found to suppress the immune system in a few ways: 
    • They negatively impact the thymus gland, which is crucial for immune function. 
    • They weaken the body’s ability to develop immunity when exposed to pathogens.
    • They inhibit the body’s  ability to resist certain viral infections
  • Reproductive Issues: PCB’s have been linked to decreased birth weights,  increased premature births, and reduced sperm count.
  • Learning Deficits: PCB’s negatively impact the brain and nervous system and have been linked to deficits in the development of the neurological system – inhibiting short term memory, visual recognition, and learning capabilities. 
  • Endocrine Disruption: PCB’s can throw your thyroid hormones out of whack – which creates a cascade of negative effects on the rest of your hormones. 

The long term effects of PCB exposure are still being studied. But there’s no denying that PCB’s are toxic to human health and can have grave side effects. Fortunately, there are some things you can do to protect yourself and your loved ones.

Protecting Yourself From PCB’s

Exposure to PCB’s is inevitable. We’re all exposed to some level of PCB’s on a daily basis through the food we eat, water we drink, and air we breathe. 

But being proactive and minimizing exposure is your best bet in protecting yourself. So here’s what I suggest:

  • Wash all fruits and vegetables well before consuming them.
  • When consuming fish, go for smaller, younger fish – smaller fish have less time to accumulate PCB’s and other dangerous chemicals like mercury.7
  • Opt for quality meat and fish – I highly recommend Butcher Box and Vital Choice for high-quality meat and fish that can be delivered straight to your door.
  • Invest in an air purifier. Austin Air is hands down the best in my book – and you can get a 10% discount by calling our office at 303-993-7910. 
  • Invest in a quality water filter like the Berkey Water Filter.
  • Improve your detoxification by adding in detox binders like G.I. Detox and Coconut Charcoal to aid in the elimination of toxins from the gut.
  • Round out your detox protocol by adding in a prebiotic like FiberMend along with Citrus Pectin to help bind toxins and PCB’s in the gut while boosting your immune system.

Set Yourself Up For Success

When it comes to your health and protecting yourself from PCB’s, you’re your own best advocate. Exposure to PCB’s and other harmful toxins is unavoidable. 

But being proactive by educating yourself and following the suggestions above will go a long way in keeping you and your loved ones safe.

Now it’s time to hear from you. Are you surprised to hear about the dangerous effects of PCB’s? What steps are you taking to protect yourself and your family? Share your questions and thoughts in the comments below.  

References

  1. https://www.atsdr.cdc.gov/toxfaqs/tf.asp?id=140&tid=26
  2. https://www.epa.gov/pcbs/learn-about-polychlorinated-biphenyls-pcbs
  3. https://www.atsdr.cdc.gov/phs/phs.asp?id=139&tid=26
  4. https://www.atsdr.cdc.gov/csem/csem.asp?csem=30&po=6
  5. https://www.oregon.gov/oha/PH/HealthyEnvironments/DrinkingWater/Monitoring/Documents/health/pcb.pdf
  6. https://www.epa.gov/pcbs/learn-about-polychlorinated-biphenyls-pcbs
  7. http://www.idph.state.il.us/envhealth/factsheets/fishpam.htm

The information in this article is not intended to diagnose, treat, cure, or prevent any disease state or medical condition and has not been evaluated by the <a href="https://www.fda.gov/" target="_blank" rel="noopener noreferrer">FDA</a>. This is not intended to replace any recommendations by or relationship with your physician. The references included in each article allude to the level of scientific rigor I have applied to my writing. When changes become apparent we will update the information if appropriate.

* These statements have not been evaluated by the Food and Drug Administration. The product mentioned in this article are not intended to diagnose, treat, cure, or prevent any disease.   The information in this article is not intended to replace any recommendations or relationship with your physician.  Please review references sited at end of article for scientific support of any claims made.

Categories: Allergies, Autoimmune Health, Brain Health, Environmental Toxicity, Gut HealthBy Dr. Jill C. Carnahan, MD, ABIHM, IFMCPFebruary 26, 20205 Comments
Tags: air toxinsavoid toxinsfood toxinsHealth Effects of PCB’sPCBsProtecting Yourself From PCB’stoxicitytoxin exposuretoxin PCB’stoxins
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Author: Dr. Jill C. Carnahan, MD, ABIHM, IFMCP

https://www.jillcarnahan.com/

Dr. Jill is Your Functional Medicine Expert! She uses functional medicine to help you find answers to the cause of your illness and addresses the biochemical imbalances that may be making you feel ill. She'll help you search for underlying triggers contributing to your illness through cutting edge lab testing and tailor the intervention to your specific needs as an individual. She may use diet, supplements, lifestyle changes or medication to treat your illness but will seek the most gentle way to help your body restore balance along with the least invasive treatment possible. Dr. Jill is a functional medicine expert consultant and treats environmental and mold-related illness as well

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5 Comments

  1. Tom Sage says:
    February 27, 2020 at 6:28 pm

    Hi Dr Jill,
    Great article, as usual, and full of detailed help.
    Question – Do PCBs include toxins like Styrene or MTBE?
    Many thanks for your great work!

    Reply
    • Jill Carnahan, MD says:
      February 27, 2020 at 9:51 pm

      Hi Tom
      No Styrene and MTBE are different from PCBs
      warmly
      Dr Jill

      Reply
  2. Dan says:
    February 27, 2020 at 10:13 pm

    Hi Dr. Jill,
    Great article. Do you recommend taking the GI Detox, charcoal, fibermend, and citrus pectin together? Can you spell out the protocol in more detail?
    Thanks!

    Reply
    • Jill Carnahan, MD says:
      February 28, 2020 at 6:09 pm

      Hi Dan,
      Thank you for your comments… I suggest taking more than one binder for better activity but unfortunately I can not give you specific protocol online. Usually I recommend combining charcoal at 1000-1500mg twice daily with GI detox 1-2 caps and you could use other fibers like pectin at 1/2 to 1scoop
      warmly
      DR Jill

      Reply
  3. Terry Kopf says:
    February 28, 2020 at 6:15 am

    Jill have you ever found any evidence of PCBs being removed from the gazillion transformers they were put into in both city and country transformers? Everywhere you look, there are transformers at the top of phone poles, etc. I doubt that anyone went to every one of them out in rural areas especially and replaced them after Monsanto discovered they were toxic back in 1972. They found out there was a problem because they were leaking PCBs into fields and streams. I am hopeful but always worried that was not done.

    Reply

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