Ethylene Oxide/Sterigenics Updates

Articles Posted in PFOA / PFOS

McDonalds--300x293 Eating fast food wrapped in PFAS laden food packaging may be a one-two punch for your prostate. A new study conducted by scientists at the University of Illinois has found that PFAS exposure together with a high-fat diet causes malignant prostate tumors to grow much faster than those without exposure to the chemical.

The scientists in the study performed several experiments. In one they exposed malignant human prostate cells to PFOS and PFBS and compared them to malignant prostate cells that were not exposed.  The cancerous cells replicated three times faster than the control group when exposed to PFOS and 5 times faster when exposed to PFBS.

In a follow-up experiment, they injected mice with the malignant human prostate cells and fed them either a high-fat diet or a control diet. Some of the mice also received doses of PFOS, a common form of PFAS that has previously been linked to cancer. As expected, the mice fed a high-fat diet exhibited faster tumor growth than mice in the control group. The mice exposed to PFOS who ate the control diet had even faster tumor growth than the mice fed a high-fat diet. But the mice who were exposed to PFOS and fed a high-fat diet had the fastest rate of tumor growth of all.

Fire-fighting-foam-1024x742California has long been regarded as one of the most environmentally progressive states in the country, which is why it is no surprise that they are one of the states leading the charge against the “forever chemicals” known as PFAS. In March of this year, California announced its intent to label two of the most widely used PFAS–PFOS and PFOA–as chemicals that cause cancer in humans and to study four other PFAS– PFDA, PFHxS, PFNA, and PFUnDA– for reproductive toxicity.

It is about time.

What Are PFAS?

carbonated-water-300x200We should be able to expect that products that are widely available for purchase are safe to consume but, unfortunately, this is not always the case. When you reach for a can of fizzy, sparkling water the last thing you want is to unknowingly be ingesting toxic chemicals with each sip, but that may be exactly what you are doing. Consumer Reports recently tested sparkling water and discovered that many of the most popular brands of sparkling water contain measurable levels of PFAS, a dangerous family of chemicals.

What Are PFAS?

Perfluoroalkyl and polyfluoroalkyl substances, commonly referred to as PFAS, are a class of man-made chemicals. These chemicals are very persistent in the environment and in the human body. Because of this, they are sometimes referred to as ‘forever chemicals’. PFAS pose many health risks to humans: high cholesterol, decreased fertility in women, increased risk of thyroid disease, and an increased risk of some cancers are just a few of the primary health concerns associated with PFAS. Given the high level of risk, there is no excuse for these chemicals to be present in any food or beverage.

water-1154080_1920.jpgPFOA and PFOS belong to a family of “fluorinated organic chemicals”. They are dangerous to human health. Before virtually all production of these chemicals was halted in 2006 (due to health concerns), PFOA and PFOS were used in a number of industrial processes; to fight fires at airfields; and to make carpets, clothing, and fabrics for furniture.

Health officials warn that sustained exposure to even low levels of these chemicals may result in adverse health effects, most notably, testicular and kidney cancer; damage to liver tissue; negative effects to the immune system and thyroid; and developmental damage to fetuses during pregnancy and to breastfed infants, such as low birth weight, accelerated puberty and skeletal variations.

The EPA tells us that while the levels of PFOA and PFOS in the blood of people that have been tested have been decreasing in the 10+ years since production of these chemicals stopped, PFOA and PFOS still pose a threat to human health in specific locations where the chemicals were historically used and dumped, buried or spilled, and allowed to migrate into water systems. Such locations include:

Last year, the groundwater feeding a well located at the Portsmouth, New Hampshire Airport–which was one of several wells supplying water to the citizens of the City of Portsmouth–was found to be contaminated with dangerous levels of a chemical known as perfluorooctane sulfonic acid, or PFOS. The well is called the “Haven” well. The chemical detected at the Haven well is believed to have migrated to the groundwater supply after being sprayed for years at the Airport as part of a PFOS-containing firefighting foam. 1 The City had no choice but to shut down the Haven well so that no one drinking the City’s water would be exposed to the PFOS. Testing also showed that chemicals from the same family–perfluorooctanoic acid, or PFOA–had contaminated groundwater feeding two other city wells (“Smith” and “Harrison”), which were located to the south of Haven, although the levels detected at Smith and Harrison on that day were below the levels considered dangerous. So, the Smith and Harrison wells have not been shut down, and presumably continue to supply water to the City’s residents. New Hampshire’s Department of Environmental Services (DES) says it is on the job, that it is watching to see if greater levels of contamination are heading toward the Smith and Harrison wells, which would result in their shut down, too. Portsmouth’s mayor, for his part, is understandably concerned about the possibility of even greater impairment to his City’s water supply, but then suggests to his constituents that “we need to leave it to the experts to determine how concerned we need to be”. 1 Respectfully, Mr. Mayor, no you don’t need to do that, and in fact, you shouldn’t. Especially when something so dear as the integrity of your water supply is concerned, you and your constituents deserve not only rapid action to protect them, but also timely and accurate information. In short, you deserve the right to be involved. You can’t just trust that the “experts” are going to get the job done all by themselves. I have no reason to distrust DES here, but, after all, they are government bureaucrats, and my experience as an environmental lawyer over the last 15 years tells me that citizens must never trust that their government is as diligent in protecting them as it should be. For example, limited government budgets, changing government personal, competing government priorities, and political pressures often slow or even halt investigations into groundwater contamination, and clean-up efforts. The people of Portsmouth and their Mayor do not want to wake up years from now to find that they have a badly compromised water supply because their government couldn’t give it the attention that it should have. What’s the answer?  The Mayor is certainly correct when he says that he and his constituents are not environmental “experts”, so how is it that they should stick their noses in this problem, which is certainly scientifically complicated? Simple: public pressure. The people of Portsmouth do not have to pretend to be environmental “experts”, but they can be experts in demanding protection of their water supply and demanding a timely flow of information and action so that they can monitor whether or not their government is doing its job. No need to be anything but a concerned citizen to be that kind of an expert. We all understand that, when public and media attention stops, the priorities of those in government often change. They tend to move on to the next problem that is getting attention.  So, people of Portsmouth: don’t let that happen. Don’t let the government’s attention stray from the job of protecting your water supply. Specifically:

  1. Demand to know why the levels of PFOA’s detected in the Smith and Harrison wells are considered “safe” to drink. After all, PFOA’s are industrial chemicals. Why is any level safe?
  2. Demand that regular tests be taken of the Smith and Harrison wells, to see if they become contaminated beyond the levels already discovered. And insist that the test results be published immediately upon availability; the people should not have to make requests to get them.
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