Showing posts with label phthlates. Show all posts
Showing posts with label phthlates. Show all posts

Monday, November 19, 2007

More Thoughts on Phthalate Phobia

My last post about the potential ban on phthalates has generated lots of discussion, and more posts. This is a good thing. The more we share our knowledge, experience and insight, the better off we will all be in the end.


This issue goes way beyond polymer clay. PVC's, and phthalates in other materials, are woven into our lives in more ways than we can possibly be aware. My husband related a story to me about issues his company is having with a partner company and their demands that PVC be removed from the product. PVC is incorporated in some small way in nearly every, if not all, the products they produce. Finding an adequate substitute is not simple.

Phthalates are in medical equipment (tubes, fluid bags, etc.). They are in nail polish, the scented candle, and the moisturizer from a company known for being "natural". This should not make us more paranoid. If anything it should give us perspective to realize that if phthalates were as awful as some would like to portray them, then they would have caused lots of problems already.

What if we were to eliminate plastics completely from our lives. Are we going to go back to metal pipes for plumbing, and glass bottles for holding liquids? Do we have the capacity in our system to do that? What about the effects of the added weight of these other materials in transport. Not only will it cost more, but it will consume more energy to move them, adding to global warming.

Do you know that one of the benefits of eliminating glass for packaging liquids was not only weight, but safety? Glass breaks more easily that plastic, and it also cuts more easily than plastic. How do we factor people injured by glass bottles into the equation of plastic versus glass?


Nothing sounds more natural and earthy than felted wools, and other natural fibers. But what about the dyes that are used to color them? And how are the dyes disposed? Unless vegetable dyes are being used, with no chemical fixatives, you are working with toxic materials. Concentrated toxins.


Plastic resins used to make jewelry. Phthalates, along with many other toxic chemicals.


Glazes, paints, thinners, enamel powders and more. Toxins galore.


When we look at a ceramic pot, or a beautiful woven scarf, or that fun piece of resin jewelry, the last thing we are thinking about is the materials used to create them, and the potential harm that they pose for the environment.


I am not suggesting we look the other way, and pretend that there is no problem with any of these things. Rather, that we educate and inform ourselves. If you use materials that are potentially hazardous, be responsible in the way you use them, and dispose of any remaining material. If safer alternatives exist that are equally effective, explore those. But don't react to every scare story you are told. And if you hear someone spreading fear that is inappropriate, do your best to educate them. In the age of the internet, misinformation can spread just as rapidly as information.

Friday, November 16, 2007

Fear and Hysteria in the Studio

Nearly every time I do a show, I have someone come up to me and ask me if I know about how dangerous polymer clay is. What is interesting about these encounters is that there is very little fact presented, just fear, and a sense that if I do not take what they are saying seriously, I am being irresponsible. When I mention any studies that have been done to look at the potential risks of working with polymer clay, and show that there is little to no risk, they are dismissed out of hand.

I am going to put on my scientist hat today. In addition to having an MBA, I have a degree in chemistry. I never worked in a lab after graduation, nonetheless, I learned enough about the scientific process to be able to understand the difference between hype and fact. Lately there has been a campaign by several environmental groups, whom I might otherwise support, to ban certain substances, among them, phthalates.

Phthalates are found in polymer clay, in addition to many plastics. They make polymer clay pliable until it is cured. They can be used in plastics to make the end product softer or more flexible. The rationale for banning these chemicals is that they are possibly linked to cancer and endocrine disruptions. This was based upon studies done by injecting large quantities of phthalates just below the skin of a rodent, or having the rodent consume the phthalates directly. The fear was that children chewing on pacifiers, bottle nipples, or some toys might ingest enough phthalates to risk serious health problems. There is nothing that will generate more fear and panic than to suggest that something that an infant is putting in their mouth might cause cancer later in their life.

What about the reality? In order for the children to consume an equivalent amount of phthalates as the rodents were exposed to, all of the phthalates would have to leach out of the product….not probable. And, they would have to chew on the toy or other item for at least 12 hours, continuously, each day. Add to this the fact that the results achieved with mice and rats have never been observed in higher level mammals on a repeatable or reliable basis. These include guinea pigs, and rabbits. And there is no reliable evidence of these outcomes with humans.

All we have is fear, built on possible, not probable outcomes.

The European Union (EU) has banned phthalates. Now the same groups are working to extend the ban to the U.S. A big part of the rationale, …..these products are banned in Europe. If it is banned in Europe it must be bad. Right? We don’t need to look at the science. We just need to know that someone else said it might be dangerous. As Bill Durodie, of Cranfield University in the U.K., aptly explains in a paper from April 2007, titled “Why Did the European Union Ban Phthalates?”, it was more about the potential risk rather than the real risk.

“ research commissioned by the European Union’s own executive branch, the European Commission, had already concluded that the chance of a child exceeding the recommended limits through exposure to such products was ‘so rare that the statistical likelihood cannot be estimated.’

Given those results, why would the ban be implemented? This was a few short years after the BSE or Mad Cow disease scare spread through Europe. The Commission was perhaps feeling more reactive as a result. Better to eliminate a potential health crisis than to face criticism for not acting. This type of behavior, acting on fear rather than fact, is the same type of behavior that has lead to major foreign policy blunders by this country in the last several years.

We are in an environment where our politicians are more likely to be swayed by public fears than by fact. And the media is more likely to be swayed by these fears as well. I have seen blogs , heard radio shows , and too much more that tells me the risk of these products being banned is greater than the real risk the products pose. Again, I go back to the paper by Durodie, from April of 2007.

“….manufacturers, retailers and local authorities were already
withdrawing such items from sale while admitting, in one significant case at least, that this was largely ‘a marketing decision’.


According to the European Commission’s own rules, application of
the precautionary principle should be ‘proportional’, ‘consistent’ and
‘subject to review’. Yet despite the considerable information and evidence that has emerged since the introduction of the ban, suggesting that most of the initial assumptions were flawed, the restrictions remain in place. This is, in part, because the drive to err towards the side of caution encourages officials to continuously defer to previously obtained worst-case estimates and scenarios,
irrespective of any evidence gathered since.”

Reactionary behavior, either by the right or the left politically, can have consequences we do not foresee. When Greenpeace campaigns to eliminate PVCs, and no one questions fully the rationale, are we better off? We may be afraid of chemistry because we don’t understand it. But ignorance and fear do not lead to good decisions. Our shower curtains are not going to give us cancer, or destroy our reproductive capacity.

The same gallery owner who suggests that it would be good to avoid purchasing a polymer clay necklace because of the risks that phthalates pose, carries jewelry made with resin, enamel, and other "toxic" materials in her gallery. When the customer buys any of these finished products, they are chemically stable and safe, just as a polymer clay necklace would be. But the artists are exposed to potential toxins in the creation of the work. Used intelligently, the risks are manageable with all these materials. There is no real risk to the consumer with any of them. If we want to eliminate risks, let’s do it judiciously, and with consideration of the facts.

It is not easy to stand up in favor of chemicals, especially ones that can hardly be pronounced. Yet, it is not the chemical per se I am standing up for. Rather, it is the idea that we need to look at facts, and not let our emotions overtake our judgement. It is easy to look at chemicals as bad, Greenpeace as good. But the reality is far less black and white, and far less simplistic. There was a time in our countries history when all someone had to do was accuse someone of being a part of the Communist party, and their life was destroyed. Facts were less important than innuendo.


This is about as political as I plan to be in this blog. It is actually more political than I intend. But it is important to me that this freight train of emotional reaction is slowed down. I am likely to get run over by the train, or at least drowned out. But at least I didn’t just sit by and watch it happen. Not many voices are out there trying to say "wait a minute, let's look at the facts". Instead, there is a lot of stirring up of fear and emotion.

Please, before you take a stand on an issue, any issue, inform yourself fully. If someone presents you with a potential problem, do not hesitate to ask questions. Do not take everything you hear or read at face value. Feel free to question my position on this issue as well. Nothing is ever as simple as some people want us to believe.