PVC Pipe

  • We are currently upgrading MFK. thanks! -neo

meghanashley

Candiru
MFK Member
Jul 15, 2008
816
1
48
NJ
I just read this article and thought about how pvc pipes and piping are used all the time by aquarists



Would You Like Those Headphones Leaded or Unleaded?

by Alexandra Zissu



Email This Page
Print This Page

RELATED

Lead, Straight from the Tap
by Sarah Lipman
Clean Hair, Clean Air
by Mary Logan Barmeyer and Solvie Karlstrom
The Green Mom: Dirty Dishes: Finding Alternatives to Melamine
by Alexandra Zissu

about ALEXANDRA ZISSU

Alexandra Zissu is the Green Guide's parenting columnist and also serves as New York Magazine's Kids Editor. She's co-author of The Complete Organic Pregnancy.

More By ALEXANDRA ZISSU

Low-Impact Trick or Treating

New School

The Toys of Summer






mag3_29september08_342x211.jpg

I'm writing this column on a laptop. My daughter likes to yank on its power cord. Next to me sits my cell phone with its corded hands-free headset. Next to that rests a cord-ed baby monitor. A few feet away from me is the babe's 16-year-old cousin, bopping along to her iPod. Another cousin is playing some sort of game hooked up to the television: cords, cords and more cords.
The problem with all those cords isn't the mess they create but the fact that they're wrapped in polyvinyl chloride (PVC), an environmentally destructive plastic that often contains brain-damaging lead and hormone disrupting phthalates.
Several groups, including Greenpeace and the Center for Environmental Health (CEH), have tested and concluded that the headphone cords for certain electronic devices contain high levels of phthalates. Greenpeace has found a similar issue with certain game consoles.
But would I, or the iPod and video game addicts, give these things up just to cut back on potential lead and phthalate exposure? Probably not. I do try to, but it makes work difficult.
The good news is that companies are starting to (voluntarily) eliminate the worst chemicals from their electronics and wires. Apple, which was recently given kudos from Greenpeace for its greener Nano, has said it will rid its products of PVC (the source of the phthalates and often of lead, which is used to stabilize the flexible plastic) by the end of 2008. Apple also says it currently complies with an E.U. directive called RoHS ("restriction of the use of certain hazardous substances in electrical and electronic equipment") and its tough guidelines on toxic substances in electronics; the RoHS guidelines require eliminating lead but not PVC. Though they aren't the standard issue iBuds that come with their pods and phones, Apple does already sell (volume reducing) PVC-free earphones called Ultimate Ears Loud Enough Earphones for Kids ($39.95; www.store.apple.com). These work for non-Apple items, too.
Where cell phones are concerned, Nokia got top billing in Greenpeace's most recent Greener Electronics Guide, partly for eliminating lead in all its products and for having produced PVC-free phones since 2005. And, the Greenpeace report notes that Sony Ericsson has banned lead, PVC and phthalates in all of its products (including hands-free headset wires).
But what if you don't want to buy new earbuds or a new phone for your techie teenager? Unfortunately warning labels are few and far between, and often buried in paper manuals most of us toss or lose post purchase. A few solid ideas:
* Do not allow children—or adults—to put earphones or cords in their mouths.
*Always wash hands after touching cords, especially before eating.
*Test cords with a Lead Check swab, which is said to work well for electronics.
*If you're willing, wrap earphone cords in something like fun-patterned or brightly colored wire reinforced ribbon. This goes over particularly well with teenage girls. Don't, however, wrap in electrical tape. It's also PVC.
* It might be worth switching computer cords you use most, and certainly those that test positive for lead. Call your computer's manufacturer to see if they offer lead-free cables. If not, check online stores that sell RoHS-compliant accessories, such as www.pcconnection.com.

http://www.thegreenguide.com/doc/Mag3/leadheadphoneshttp://www.thegreenguide.cm/doc/Mag3/leadheadphones
 
so are you saying pvc pipe is bad for our fish?
 
If it's toxic to us by putting it in our mouths, I would be hesitant to put it in water with my fish. I'm researching further online. PVC apllications are endless so I'm not sure why I haven't heard concerns before. If I find any other useful info I'll post
 
Deb writes The Green Guide:
Our home is completely piped with PVC water piping. I cannot find any articles that tell me if this PVC is safe or not. One article, "Old Home Renovation" suggest it is not safe. Are our PVC water lines leaching phthalates into our drinking and showering water daily? Are there different grades of PVC?
Deb
The Green Guide responds:
PVC is not an environmentally sound choice for water piping: PVC is hazardous throughout its lifecycle, and PVC of all forms, from tiles to toys to blinds to pipes, contains numerous additives that are especially harmful when burned. However, to address your immediate concern, while installed in your walls or in the ground PVC pipe does not appear particularly hazardous to your health. Toxic phthalates can leach from PVC treated with softening plasticizers; PVC pipe, however, is rigid and does not present a phthalate risk. There are other additives to worry about in PVC pipe, but most evidence seems to say that you shouldn't worry too much. How old is your pipe? PVC pipe manufactured before 1977 can leach vinyl chloride into your water. Newer pipes alleviate that hazard--though Greenpeace's toxics campaigner Rick Hind isn't so sure. "That's what the industry says, but we don't know," he said. "We'll have to see how they age." More certainly, PVC pipes often contain organotins as stabilizers. These metallic compounds are immunotoxic at high levels, but leach from pipes in amounts orders of magnitude lower than is toxic; leaching is greatest at the beginning of the pipe's life. According to the World Health Organization, organotin is not a major concern in drinking water. Still, PVC pipes, though fire resistant, are as toxic as any other PVC when burning or smoldering.
When building a new house, should you install PVC? Should you replace the PVC pipes you already have--is it dangerous enough to make it worth replacing immediately?
The answer to the first question is a probable No, and you should steer clear of PVC more generally. From manufacturing to disposal, PVC has high environmental costs. Its full name is polyvinyl chloride, though it's generally known as vinyl; as the name implies, PVC contains a high percentage of chlorine--it's made with the carcinogen vinyl chloride, and dioxin and ethylene dichloride are byproducts of its manufacture. PVC is hardly recyclable and when incinerated releases both dioxin and hydrogen chloride gas. Dioxin is a very potent known carcinogen; it causes cancer and reproductive disorders, and bioaccumulates and persists in nature.
But chlorine and its dangerous compounds aren't the only problem. PVC is softened for certain uses with substances called plasticizers, stabilized and colored with heavy metals, and treated with fungicides. All these additives can be released in incineration--Greenpeace estimates that 100 toxins are released in a PVC fire. PVC is fire resistant, but smolders at lower temperatures, producing hydrogen chloride gas without visible signs of fire--a literally hidden danger. For these reasons, the International Association of Firefighters supports alternative materials to replace PVC.
PVC's additives make it dangerous during its lifespan. Plasticizers in soft PVC products (wall coverings, floor tiles, cling wrap, furniture upholstery, and toys, among others) can release phthlates such as DEHP, which can damage the reproductive systems of and have carcinogenic effects in animals, though human effects are still unclear. A study from the February 1999 issue of the American Journal of Public Health found that children raised in houses with PVC flooring were 89 percent more likely to develop bronchial obstructions. A September 1997 study in Environmental Health Perspectives also found a possible link between phthalates and asthma The EPA classifies DEHP as a probable human carcinogen. Lead and/or cadmium has been found by Greenpeace in vinyl mini-blinds and toys, though the toy results were disputed by the CPSC.
The answer to the second question is a little murkier. The alternatives to PVC pipe have their own flaws and, in many functional ways, PVC is a versatile material: it is light and strong and durable, resists corrosion, and is cheap and easy to install, though it expands and contracts in heat and cold respectively, placing strain upon joints and fixings. High-density polyethylene (HDPE) is also cheap, light, and flexible, though it, like any plastic, requires fossil fuels in its manufacture. A bigger problem for certain uses is its especially high expansion coefficient, three times higher than PVC, making it less useful for water and waste use. ABS pipe's chemical components are nearly as environmentally problematic as PVC's, ABS manufacture is energy intensive, and ABS expands more than PVC. Cast iron is durable, but heavy and thus expensive to install; it can also corrode, and requires more energy to manufacture than any other pipe. Vitrified clay has an incredibly long life, 100 years or more, though it is even heavier than cast iron; still, it requires the least energy to manufacture of any pipe and has a very low expansion coefficient.
It's a choice between imperfect solutions. While Greenpeace is clearly opposed to PVC, less political groups like Environmental Building News seem agnostic on the pipe issue. If you're already committed to replacing pipes, or are building a new hose, the lifecycle issues should steer you clear of PVC. But if your PVC pipes are new, and protected from fire, you have to weigh small leaching risks against the functional, monetary, and environmental cost of early replacement.
Alternative pipe suppliers (Courtesy Greenpeace):
Polyethylene
Advanced Drainage Systems, 800-821-6710, www.ads-pipe.com
Hancor, 888-FOR-PIPE, www.hancor.com
Chevron Phillips Driscopipe, 800-231-1212, www.driscopipe.com
CSR PolyPipe, 800-433-5632
Pyramid Industries, 814-455-7587, www.pyramidind.com
Prinsco, 800-992-1725, www.prinsco.com
Charter Plastics, 814-827-9665, www.charterplastics.com
Clay
Logan Clay Products, 800-848-2141, www.loganclaypipe.com
Can Clay. 800-282-2529, www.canclay.com
Gladding McBean, 916-645-9525, www.gladdingmcbean.com
Mission Clay Products, 909-277-4600, www.missionclay.com/
Ductile iron and stainless steel
Davidson Pipe Supply, 718-439-6300, www.davidsonpipe.com
Everett J. Precott, Inc. 207-582-1851, www.ejprescott.com
 
oh boy 3 million yrs from now it may affect us
 
After reading this second article I felt the same way. Nothing is safe anymore:grinno:
 
zennzzo;2321819; said:
kookie!:screwy: or if you incinerate it and concentrate and inhale the smoke...So there you have it, do not put PVC in your bong...


Oh crap...
 
MonsterFishKeepers.com