Showing posts with label bisphenol-A. Show all posts
Showing posts with label bisphenol-A. Show all posts

Friday, August 29, 2008

Environmental Concerns Not Even A Topic of Discussion at ADA Conference?

I took EGirl to the dentist last week right before school started, to get the shining of the pearly-whites out of the way before life got more hectic. My dentist and I chatted once again about the topics that intrigue me: the safety of fluoride (whether in water or toothpaste) and the possibility of a link to bone cancer in boys (see this Eugene Weekly review of the issue from 2005 for a great overview of the controversy); sealants and whether BPA leaching out of them is a health concern; and mercury fillings' wastewater as an environmental hazard. My dentist is pretty comfortable with these topics, well-read, and open to discussion. She didn't come down definitively on any of the issues (hot button topics that need more research in all cases). We both were pretty middle of the road in terms of seeing a true need for cavity prevention (literal British teeth in our family), but she did comment that the ADA conference, which she recently attended, didn't address any of my questions. She suggested I write the ADA to tell them to at least put these issues on the docket for their next round. Even if these topics turn out to be non-issues, you'd think dentists would want to discuss fully how to allay their patients' fears given the level of BPA press alone this year.

So, thanks for the suggestion, doc! Done and done. If y'all want to follow suit, here's my letter:

ADA
American Dental Association
211 East Chicago Ave.
Chicago, IL 60611-2678

To Whom it May Concern:

I recently took my child to the dentist and had a number of questions for my dental health provider. Apparently, none of my questions were addressed at the last ADA conference (which she'd just attended). I would like to outline my areas of interest in the hope that the ADA will be able to discuss and continue to study these issues within your professional community. I am aware that the ADAs official positions on fluoride and BPA are on the ADA.org website, but in both cases the ADA acknowledges that more research needs to be done to determine if a health concern exists. Please continue to discuss these topics and to inform the public about updated studies of the safety of these chemicals.

1.Fluoride

With regard to fluoridation of water, as the ADA states on its website, there is a controversy regarding a possible link between fluoride supplementation and bone cancer in boys (my dentist mentioned that this was a "hot topic" in Sweden at the moment and that the issue seems to arise cyclically).

While reading up on the issue, I came across the following additional environmental concerns about fluoride: 1)that the type of fluoride used in municipal water treatment may have persistent organic pollutants bound to it (because "most is industrial waste: sodium
fluoride, sodium fluorosilicate and fluorosilicic acid from phosphate fertilizer, glass, steel and aluminum production. Unlike organic fluorine, these compounds come with pollutant hitchhikers that get a free ride into public water supplies." (via ScienceDaily) and 2)even the levels of fluoride considered safe for humans may be affecting marine organisms.

Regarding the possibility of a bone cancer link, the ADA in 2006 put out a press release noting that it "will require scientific confirmation to confirm or refute the findings." I wonder if there's been any more recent research on this topic? What about the other areas of concern ie the ingestion of persistent organic pollutants and the effects of fluoride on marine life?

2.Sealants

Regarding the BPA in sealants, some research seems to indicate that it may be soluble in saliva at high levels during or immediately after application. (In the March 2006 Journal of the
American Dental Association, researchers tested 14 volunteers immediately after sealant application and found that patients who received Delton Light Cure (LC) Opaque brand absorbed about 110 micrograms of BPA, 20 times that absorbed by recipients of another brand, Helioseal F (5.5 micrograms). Delton Light Cure (LC) leached amounts similar to those that caused developmental toxicity in rodent studies and, at 42.8 parts per billion (ppb), are higher than the
highest amount found in canned food, 38 ppb.... ") Is there an alternative to BPA-based sealants that is effective and safe? I tend to try to avoid potentially toxic chemicals (like endocrine disruptors) even if the jury's still out because I have young children with developing bodies. If I am getting rid of a baby bottle that may or may not leach minute amounts of BPA, I certainly want to avoid a massive ingestion of BPA during the application of a tooth sealant.

The ADA's public statement on Bisphenol-A concludes that "any concern about potential BPA exposure from dental composites or sealants is unwarranted at this time. When compared with all other sources of BPA, these dental materials pose significantly lower exposure concerns." While it seems that the aforementioned study might contradict that statement, I am no scientist (just a concerned mother). So I am thrilled to read that "the ADA is a professional association of dentists who remain committed to the public’s oral health. As such, we strongly support additional research into human exposure to BPA and any health effects it may cause." Could you update me as to the status of the BPA research the ADA's aware of? Is the ADA continuing with an internal dialogue on this matter?

3. Mercury Pollution

It's my understanding that research has shown mercury amalgalm fillings to be safe for humans -- but it sounds like the wastewater leaving dentists' offices may be polluting our water supply.

"Mercury is a large component of dental fillings, but it is not believed to pose immediate health risks in that form. When exposed to sulfate-reducing bacteria, however, mercury undergoes a chemical change and becomes methylated, making it a potent, ingestible neurotoxin. While the major source of neurotoxic mercury comes from coal-fired electric power plants, researchers at the University of Illinois at Chicago and at Urbana-Champaign say mercury entering drain
water from dental clinics and offices is also a source. "We found the highest levels of methyl mercury ever reported in any environmental water sample," said Karl Rockne, associate professor of environmental engineering at UIC and corresponding author of the study that appeared online March 12 in the journal Environmental Science and Technology." (via EurekaAlert)

What is the ADA's stance on this topic? Is there any safe alternative to mercury-based fillings? How might dentists mitigate the environmental pollution associated with drain water?

Thank you very much. I am not trying to be alarmist about any of these topics, and your website does a good job of addressing the ADA's stance on both fluoride and BPA. I'd just love to see further study and conversation about all of these topics.

Best,

Read more!

Sunday, June 1, 2008

Perfect Post Award for a BPA Bedtime Story

Perfect Post Award – 0508

Since 2006, Petroville and Suburban Turmoil have held the Perfect Post Awards "in order to share personally captivating posts within a supportive community." I'm pleased to say I got my act together in time this month to submit my fave. My instructions as a presenter said to pick a post "that made you cry, touched your heart, had you laughing out loud or made you believe in magic again. Whatever the word perfect means to you."

Well, friends, you know that a post about bisphenol-A that a)fingers specific corporate PR firms who got paid to spin the poisoning of our children and b)figured out the name of our BPA folk hero in Canada who spearheaded the movement to ban the chemical there spells P-E-R-F-E-C-T to me! The Cleaner Plate Club is one of my favorite food blogs; it's full of great recipes, insightful commentary about food politics, and, best of all, humorous and -- dare I say it again? -- perfect writing. It's a blog started by a mom who, in her words, began to blog in response to: "Hormones in milk. Pesticides on produce. Feces on meat. Say what? I’m not a foodie, I’m rarely a cook, and I don’t have the time for slow food. Truth is, all I’m looking for is a decent meal - preferably one that my kids will eat, as well. So I begin my quest for a cleaner plate. If you’re looking for a better meal - one that is fresh, healthful, and unsullied - then you can consider yourself a member of the Cleaner Plate Club, too."

Sign me up! Without further ado, here's my May 2008 Perfect Post Award: Toxic Plastic and BPA: A Cleaner Plate Club Bedtime Story.

Thanks so much, Cleaner Plate fairy blogmother, for the comprehensive review; I didn't know that Patagonia phased out BPAs three years ago (woo hoo), nor did I know the details of the FDA's weaselly scientific basis for ruling BPA safe. Mostly, though? I love this post because it made me laugh out loud (lines like "my unlikely stud-muffin of a conservative politician, Tony Clement...")

Don't take my word for it, though. Head on over to the Cleaner Plate Club and check it out. For other Perfect Post Award winners, head on over to Petroville.

Read more!

Monday, January 28, 2008

Chicken Little Soup

This is a link-rific post. Mostly horrible news. I believe I may be channeling my grandmother, who used to send my mother newspaper clippings of random tragedies. No note, just a neatly clipped story about toddlers wandering across train tracks. I believe these were cautionary type missives. In keeping with my grandmother's unparalleled care packages (the newspaper heartstoppers got tucked into boxes filled with hand-embroidered floursack towels, Sees Candy lollipops, and groovy California duds for the youngsters -- think 7os velour pantsuits and beaded tie-dye v-necks), I promise to give you a happy face sandwich for the bad news.

In that vein, then:

Hey, dental sealants aren't bad for kids! You know how we were all freaked out about a little bisphenol-A in baby formula cans? Well, some of us had a horrible sinking feeling about the relatively huge quantities of BPA in our kids' teeth. No worries! via Science Daily

Dental sealants are a huge pollutant, though, if you plan on being cremated. Maybe keep a pair of pliers with the will? via Wonkette

Um, scientists think there may be some link between pesticide consumption and Type II Diabetes. Now there's a motivator to buy organic grapes: never eating a lollipop again. via Eating Liberally

Bummer, there's rocket fuel in all of us. via Everything EWG

Sorry, ocean. Melanoma trumps. Sunscreen is killing the coral reefs. via Treehugger

All you have to do to make sure your kid is learning? Listen to her. Now that I have some control over. via Science Daily

And finally, to dissipate that little vortex of gloom, via Overheard in DC (DCist):

At a paint-your-own-pottery place in Silver Spring.

The paint colors are numbered, and a mother and her toddler daughter sit and paint at a table.

Mother: "I need more of color 69."
Toddler (screaming at the top of her lungs): "My mom needs 69! My mom needs 69! MY MOM NEEDS 69!!!"
Mother (laughing so hard she can barely get the words out): "Sweetheart, please stop saying that." Read more!

Wednesday, December 12, 2007

SpaghettiNOs

BPA in plastic? Check. Sippy cups? Pacifiers? Toys? Check. Head exploding, but check.

Now bisphenol-A in cans? Ruh-roh. Wasn't I just talking about how being healthy and sustainable was making me feel like we are living out Little House on the Prairie? Time to make our own soup (good thing I got that stock simmering....) and, well, read this. Read more!

Friday, November 16, 2007

Plastic Smile

I swear I feel like we are all trapped in the Batman movie where the deodorant chemicals interact with the shampoo chemicals which interact with the room deodorizer and lock the poor unsuspecting victims into a Joker smile....

You've read all about plastic stabilizers leaching out of baby bottles and sippy cups aka the Bisphenol-A fiasco of the summer. In case you're needing succinct recommendations, my favorite resources are Z Recommends' extensive research on bottles/sippys and the old Green Guide basic guide to plastics. We recently went cold turkey on CBoy's pacifiers (poor guy), in part bz the plastic shield on his preferred binky was made of #7 plastic, um, yes, the shield that he chews on cavalierly to make a clicking sound while he bounces and grooves. That and the fact that his one true pacifier love was discontinued due to The First Years' fears of latex lawsuits (bad allergies in some kids) and therefore I'd only been able to stock up for the past 6 months via EBay auctions filled with sleep-deprived parents. But I digress....

You can check your own plastics to see what you should keep and what you should toss. Altho skipping plastic altogether may be the safest bet, supposedly safer plastics are labeled #1,2,4, and 5. Look on the bottom for the recycling symbol. If something isn't labeled with these numbers, don't use it for eating/drinking. Do not use plastics #3, 6 and 7 for food consumption and don't reuse items for food consumption not intended for reuse (like sport water bottles, takeout containers or yogurt tubs, much as that hurts my Depression-era sensibilities). That doesn't mean you should chuck these items into the landfill, just use them as plant pots and sandbox toys, not as food containers. Or tuck them away until small humans who ram everything in their mouths stop DOING THAT.

Yes to 1, 2, 4, 5
No to 3, 6, 7
Don't use recycled plastic containers (like takeout containers) in the microwave or let acidic/fatty foods sit in them.
Do remove cling wrap from items you buy at the store asap (it's almost all PVC which is bad news) and put it into another storage container.
Make sure the containers and plastic wrap you do use (even glass and ceramic) are microwave safe (should be labeled).
Don't let plastic wrap touch your food while it's being heated (or just use a paper towel).
Skip the Nalgene bottles (they may leach Bisphenol-A too).
Classico jars make awesome storage containers.

On a related note, check out the Environmental Working Group's Skin Deep report as it ranks beauty care products (think baby shampoo) in terms of safety (the FDA isn't the strictest regulatory agency so even though you'd think that anything labeled baby shampoo has to be safe, well, read the report). Things to avoid: phthalates, which are commonly found in perfume and nail polish remover as well as plastics and may be linked to male reproductive disorders among other issues -- they're banned in the EU, and inexplicably still here in American products (like the iPhone). You can find phthalate-free nail polish/remover at Whole Foods. It's also worth avoiding parabens, which are a preservative in most shampoos, conditioners, moisturizers, even though the jury's still out on safe levels of these chemicals. They are a potential carcinogen and may mimic estrogen (high paraben levels were found in a breast cancer study). The 365 brand of beauty products is pretty cheap, believe it or not.

Interesting thread on raising an eco-conscious baby at this WashPost online discussion transcript basically urges us just to buy less stuff. Which is certainly not going to be your takeaway from my lunchbox suggestions, which are more along the line of investments you'd make to avoid creating a pile of disposable lunchstuffs like juiceboxes and the like. But then again, I don't just want a green baby, I want a green healthy baby. Heck, I want a green, healthy baby who actually eats her lunch!

In terms of avoiding plastics in your kid's lunchbox (I don't know about you but that's what almost all of our kidgear to date was made of until recently), check out Sigg (aluminum, though, which has raised health concerns in the past) or Klean Kanteen (stainless steel, but make a chirpy noise) bottles, Thermos Foogo storage jars, Reynolds Cut Rite wax paper sandwich bags (looove these! hardly ever available at Whole Foods, grab em when you can -- I'm going to try this online vendor), sandwich wraps, and Built NY lunchbags (go leadfree on the reusable lunch sacks). I really love the efficiency and food variety you can cram into Bento lunchboxes but wish they weren't filled with plastic tubs. And while we are talking kidlunch, do check out the archives of veganlunchbox for awesome ideas. If you want to buy any of this expensive enviro lunch packaging, check out Lunch in a Box and see if their coupon code/link to Reusable Bags -- can get you 20% off your order.

Speaking of bags, the Washington Post ran a phenomenal comparison of the enviro cost of paper vs. plastic bags recently. Bottom line tho: forget paper, forget plastic, we should all bring our own durned bags. In case you don't have 1,001 political/tech conference tchotchke bags already floating around your front hall closet, there are lots of clever reusable grocery bags out there. Makes me smile thinking back to college when roommates L and S and I used to wear our sweatshirts to the grocery store, take them off, and wrap up our food purchases in the zipped hoodies. I bet hoodies don't have crazy chemicals in them.... Read more!

Monday, November 12, 2007

Water, Water, Everywhere...and Nary a Drop To Drink

So, while I was pregnant with CBoy, the Post reported that male fish in the Potomac were starting to bear eggs. Sigh. This after the lead scare during EGirl's babyhood, and echoes in 2004 of the ecoli/coliform bacteria warnings in the early 90s that made me start boiling and then buying water in the first place.

I know that the environmentally friendly thing to do is to embrace tap water, as most of it is safe to drink, but I think the movement to skip bottled water (did you know that only 23% of those horrid little plastic bottles are recycled?!) may very well stagnate in our nation's capitol if the Potomac's water quality continues to go downhill. After all, bottled vs. tap in DC happens to be a faceoff between questionable quality and absurdity. Why, just this very morning, the Washington Post noted that female fish are starting to become "intersex," too, because of pollution in the Potomac. We'd used a variety of filters over the years but opted to buy bottled water in response to lead scares and to have water delivered as a response to hormone disruption press.

Another thing that fueled a change in the sourcing of my (for those who know me, prodigious) water consumption? Seltzer is not regulated like other drinking water bz it is considered a food by the FDA! So as I have long thought, Lord knows where the water in that seltzer comes from. (see the substance of a 1999 NRDC letter to the FDA).

The recent plastics press about Bisphenol-A leaching made me finally get off my duff and get rid of the plastic bottles. I had to solve the conundrum of getting clean water delivered in giant, 5-gallon #7 bottles that leach endocrine disruptors into said water. Our family is now getting water delivered from Arkansas, believe it or not (I know, I know, where *would* there be more hormone runoff than in a poultry state?!), extensively tested water sourced from a natural spring inside 600+ acres of protected land and delivered in glass bottles. Glass 5-gallon bottles that are heavy enough to make for some quality hoisting noises and expensive enough to provoke some quality sputtering noises at bill-paying time. I shudder to think about the environmental impact of shipping our water from Arkansas to DC but when I emailed our fabulous new mayor about my concerns (hormone disruption up at the tippy top with some gratuitous comments about the possibility of organic school lunch offerings a la Berkeley's affiliation with Alice Waters) his staff sent me back a chipper little snippet saying he'd be working on making healthy school lunches for *all* kids in the District. Sigh...

Next up on the agenda is to get a whole house water filter. If you own your own home, I say go for it. If you want to start thinking about drinking water issues in general, NRDC did a tap water study in 2003 called What's On Tap? that's a great place to start. Consumer Reports has a 2007 report on water filters that's helpful, too.

But what I really need to do is just drink more wine (organic wine from the Prestons should do nicely!) Read more!