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Understanding Dioxin

What You Need to Know to Protect Your Health

What is Dioxin?

Dioxins are a group of highly toxic chemical compounds known to pose risks to human health.

7–11 years

Persistence

Half-life in the human body

Group 1

Classification

Carcinogen (IARC)

They are not intentionally produced, but rather formed as unintended by-products of certain industrial processes and combustion activities.


Once released, dioxins persist in the environment for years because they break down very slowly.


They build up in the fat tissues of animals and humans, accumulating over time through the food chain.

Where Does Dioxin Come From?

Waste Incineration

Burning household and industrial waste at low temperatures is the #1 source of dioxin emissions worldwide.

Industrial Processes

Chemical manufacturing, metal smelting, and paper bleaching with chlorine release dioxins as by-products.

Uncontrolled Burning

Open burning of trash, backyard fires, and forest fires contaminated with chemicals release dioxins into the air.

Natural Events

Volcanic eruptions and forest fires also produce small amounts, but human activity is the main contributor.

 How Does Dioxin Get Into Our Food?

Dioxins travel through the environment and concentrate as they move up the food chain.

Released into Air

Factories & fires emit dioxins

Settles on Soil & Water

Contaminates land and waterways

Animals Absorb It

Livestock eat contaminated feed

Fish Accumulate

Dioxins build up in fatty fish

We Eat The Food

90%+ of exposure is through diet

Over 90% of human dioxin exposure comes from food, especially meat, dairy, fish, and shellfish.

 Health Effects of Dioxin Exposure

Cancer Risk

Long-term exposure is linked to several types of cancer. The WHO classifies the most toxic dioxin (TCDD) as a known human carcinogen.

Developmental Harm

Exposure during pregnancy can lead to birth defects, impaired brain development, and hormonal disruptions in children.

Immune System Damage

Dioxins weaken the immune system, making the body more vulnerable to infections.

Other Serious Effects

Includes skin conditions (chloracne), liver damage, thyroid problems, and disruption of the hormone and reproductive systems.

Real-World Case Study

East Palestine, Ohio - Train Derailment

February 3, 2023

Norfolk Southern Freight Train

38

4700

5

Cars Derailed

Residents Affected

Tankers Burned

out of 150 total cars

small village on OH-PA border

vinyl chloride intentionally released

 East Palestine: Dioxin Contamination & Impact

What Happened

By the Numbers

Long-term exposure is linked to several types of cancer. The WHO classifies the most toxic dioxin (TCDD) as a known human carcinogen.

Dioxin Levels

Up to 88.2 ppt TEQ

Chemicals contaminated local creeks (Sulphur Run, Leslie Run), killing over 43,000 fish and wildlife across 7.5 miles of streams.

in restricted zone soil, EPA cancer screening level is only 4.8 ppt

Residents reported burning eyes, headaches, nausea, and skin rashes. CDC investigators also fell sick while inspecting the site.

220,000+

Tons of contaminated soil removed

74M+

Gallons of polluted water collected

 How Is Dioxin Detected & Tested?

Detection Sensitivity

Parts Per Trillion

Modern labs can detect amounts as small as one drop in an Olympic-sized swimming pool.

Chemical Analysis (GC-HRMS)

The gold standard. Gas chromatography paired with high-resolution mass spectrometry can detect dioxins at incredibly small concentrations (parts per trillion).

Bioassay Screening (CALUX)

A faster, cost-effective screening test using living cells that react to dioxin-like compounds. Used for initial screening before detailed lab analysis.

Food Monitoring Programs

Open burning of trash, backyard fires, and forest fires contaminated with chemicals release dioxins into the air.

Testing for Dioxins

Gas Chromatograph – Triple Quadrupole Mass Spectrometry (GC/QQQ)

This advanced laboratory method detects dioxins at incredibly tiny levels.

Think of it as a powerful detective tool that finds harmful chemicals hiding in food, soil, or water.

Clean Up

Remove fat and

isolate dioxins

Concentrate

Shrink to a tiny

drop for analysis

Extract

Pull dioxins out

of the sample

 The 3 Stages of Dioxin Testing (GC/QQQ)

Equipment: CEM Edge

Pressurized Liquid Extraction

The food or environmental sample is placed in a sealed vessel. Using high pressure and heat, a solvent is pushed through the sample to pull out (extract) any dioxins trapped inside, like squeezing a sponge to get the water out. This step separates the chemicals of interest from the rest of the material.

 Fat Removal & Dioxin Isolation

Sample Clean Up

The extract still contains fats, oils, and other unwanted substances. In this step, the sample is passed through special filters and chemical columns that act like a sieve, they let the dioxins pass through while trapping and removing the fats and other impurities. This isolates just the dioxins so they can be measured accurately.

Equipment: SuperVap 12

Evaporation & Concentration

The cleaned sample is mostly liquid solvent with a tiny amount of dioxins. A special evaporation system gently heats the liquid, causing the solvent to evaporate away, leaving behind a highly concentrated drop. This tiny, powerful sample is now ready to be injected into the GC/QQQ instrument for final detection and measurement.

Detection Limit for Food Testing

When testing food products (meat, dairy, fish, feed), the Limit of Detection (LoD) defines how sensitive the GC/QQQ method is.

1 ppt

Limit of Detection (LoD)

Signal-to-Noise Ratio ≥ 3

parts per trillion

The smallest trace of dioxin the instrument can reliably detect in a food sample, confirming "yes, dioxin is present" with confidence.

What This Means for Food Testing

  • 1 ppt = one part per trillion, like finding one drop in 20 Olympic swimming pools
  • Method LoD for food: 1 ppt WHO-PCDD/F-TEQ
  • This is well below EU maximum levels for food products
  • Can detect dioxins in meat, dairy, fish, eggs, and animal feed

EU Standard: Per EU Regulation 2017/644 and EPA Method 1613B, the detection limit must be sensitive enough to reliably measure dioxins at regulatory levels. GC/QQQ has been EU-accepted for confirmatory food dioxin analysis since 2014.

Summary

  • Dioxins are toxic by-products, they are not made intentionally.
  • Most of our exposure comes from eating contaminated food (meat, dairy, fish).
  • Long-term exposure increases cancer risk and harms the immune and reproductive systems.
  • Strict monitoring and advanced testing keep our food supply safer.
  • The East Palestine disaster shows how a single accident can release dioxins affecting thousands.

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**These statements have not been evaluated by the FDA. This product is not intended to treat, cure or diagnose any diseases.

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