Plastic number 6 - polystyrene
Polystyrene is a plastic with a mixed message. On the one hand, foamed PS is an excellent insulator and is used more and more in buildings to provide savings by reducing heat loss in winter and promoting cooler buildings in summer. That's terrific, but other uses of foamed PS aren't so green.
I'm old enough to remember McDonald's bringing in 'clam shell' hamburger containers to replace cardboard boxes because of concerns over how much rainforest was being cut down to make paper and cardboard, only to replace the clam shells some years later over concerns about the amount of non-biodegradable litter they generated. When so many of the ways we use a plastic are single use then we have a problem.
Foamed PS is used to make boxes to transport fish and vegetables (because they are light, insulating and melting ice doesn't make them soggy), takeaway food containers and cups, and packaging 'peanuts' and frames (lightweight and protective). As you unpack your new computer or flat screen you ponder what to do with the waste packaging. There's no way to recycle it presently, so it ends up in landfill. And because it is lightweight, polystyrene packaging often ends up blowing into the ocean, where it floats. PS is particularly resistant to photo-degradation, so it doesn't break down and is toxic to any animal that ingests sufficient quantities. Large amounts of packaging from fish markets and factories where beads of PS are produced end up polluting the oceans.
A little PS is able to be recycled in the Council waste collection, mainly the foamed trays used to package meat and vegetables, yoghurt tubs and the containers used to package tomatoes and strawberries, but the vast majority of PS ends up in landfill.
Crystal CD cases, disposable cutlery, plastic wine glasses and are made of PS. In this form, it's quite brittle and so even uses that are a little more long term, such as CD cases, tend to generate a lot of waste.
There are alternatives to many of these uses, from Keep Cups for a take away coffee, to bamboo or wooden cutlery for picnics. We still see some polystyrene packing peanuts at ZURI, but we usually let our suppliers know that they can get the same benefit from packing peanuts made of corn. These break down really quickly in the garden and make a good additive to compost. We are pleased to have seen some suppliers make changes in this regard. Because so much of the PS we come into contact with is non-negotiable - try buying a computer without all that foam shock absorber - it's important to think carefully about our use of PS in the areas where we can make a difference.
the ZURI blog
create a beautiful environment
Friday, September 21, 2012
Tuesday, September 4, 2012
Plastic number 5 - Polypropylene
Polypropylene, plastic number 5, is one of the lowest hazard plastics around. You are familiar with it in ice-cream containers, drinking straws and the screw top lids of soft drink bottles. It is also in most homes in the form of Tupperware and in rugs and carpet backings. Most domestic uses of PP are either for long term use, such as in food containers, or for food packaging, which is able to be recycled easily. For these reasons there isn't a lot of concern about over use or misuse of PP.
Our fabulous Bokashi buckets are made of recycled PP, for example, and if you own one, will use it for many years to come. But if lid were to split and need replacing, for example, it would be easily recycled with in the Council recycling. This is really the ideal way to use plastic. Make sure it's for long term, not single use, and then recycle the plastic product when the useful life is over.
One use of PP that isn't so fabulous is the now ubiquitous 'green' shopping bags. Becasue the PP in these bags looks more like a fabric bag than a plastic bag they are known as 'non-woven'. Green bags are strong and really useful for grocery shopping. I'd rather see a green bag than a plastic bag at the supermarket checkout any day. But if they tear, as they sometimes do, they are just as likely to end up in landfill as a LDPE plastic bag, and they simply don't biodegrade.
There are other concerns with non-woven polypropylene (NWPP). Although less energy is used to create NWPP bags than it does to create cotton bags, they take more energy to manufacture than conventional plastic bags. They need to be used many times for an environmental benefit to start to accrue - about 171 times. Sadly, many are used about half that number.
Some companies claim to be making NWPP bags from recycled material, however with current manufacturing techniques this is not possible and all NWPP bags are made from virgin material. And although PP is very recyclable, the NWPP used in disposable nappies, surgical gear and shopping bags isn't.
Studies have found they can become really contaminated with bacteria (meat, sweaty gym clothes - it all ends up in there) and they should be washed occasionally. Unfortunately, as is the way with these things, many people will find that too much of a hassle and just replace them. NWPP bags are all made in China, so the carbon footprint, from crude oil as the raw material, to shipping across the globe, to ending up in landfill is not fabulous (the same can be argued for most re-useable shopping bags, but it's a particular problem here because they aren't being used over and over and many people have accumulated many more than they need).
We all need to carry our groceries in something, and there's almost always a degree of compromise in most eco-lifestyle choices. As always, it's always better to have thought about it and made a mindful decision about what is going to work for you, rather than not thinking about it at all.
Polypropylene, plastic number 5, is one of the lowest hazard plastics around. You are familiar with it in ice-cream containers, drinking straws and the screw top lids of soft drink bottles. It is also in most homes in the form of Tupperware and in rugs and carpet backings. Most domestic uses of PP are either for long term use, such as in food containers, or for food packaging, which is able to be recycled easily. For these reasons there isn't a lot of concern about over use or misuse of PP.
Our fabulous Bokashi buckets are made of recycled PP, for example, and if you own one, will use it for many years to come. But if lid were to split and need replacing, for example, it would be easily recycled with in the Council recycling. This is really the ideal way to use plastic. Make sure it's for long term, not single use, and then recycle the plastic product when the useful life is over.
One use of PP that isn't so fabulous is the now ubiquitous 'green' shopping bags. Becasue the PP in these bags looks more like a fabric bag than a plastic bag they are known as 'non-woven'. Green bags are strong and really useful for grocery shopping. I'd rather see a green bag than a plastic bag at the supermarket checkout any day. But if they tear, as they sometimes do, they are just as likely to end up in landfill as a LDPE plastic bag, and they simply don't biodegrade.
There are other concerns with non-woven polypropylene (NWPP). Although less energy is used to create NWPP bags than it does to create cotton bags, they take more energy to manufacture than conventional plastic bags. They need to be used many times for an environmental benefit to start to accrue - about 171 times. Sadly, many are used about half that number.
Some companies claim to be making NWPP bags from recycled material, however with current manufacturing techniques this is not possible and all NWPP bags are made from virgin material. And although PP is very recyclable, the NWPP used in disposable nappies, surgical gear and shopping bags isn't.
Studies have found they can become really contaminated with bacteria (meat, sweaty gym clothes - it all ends up in there) and they should be washed occasionally. Unfortunately, as is the way with these things, many people will find that too much of a hassle and just replace them. NWPP bags are all made in China, so the carbon footprint, from crude oil as the raw material, to shipping across the globe, to ending up in landfill is not fabulous (the same can be argued for most re-useable shopping bags, but it's a particular problem here because they aren't being used over and over and many people have accumulated many more than they need).
We all need to carry our groceries in something, and there's almost always a degree of compromise in most eco-lifestyle choices. As always, it's always better to have thought about it and made a mindful decision about what is going to work for you, rather than not thinking about it at all.
Thursday, June 21, 2012
Plastic number 3
Time to turn to plastic number three, polyvinyl chloride, or PVC. PVC is the third most widely used plastic, and it gets a lot of bad press. It's not hard to see why, as despite it's really useful properties - it's cheap, very tough, and weathers well - PVC also has a nasty side to it.
Most of the PVC manufactured worldwide goes into construction, and you as a consumer get very little choice in the matter. No matter how green you are, your water will be piped to you and your waste removed in PVC
plumbing, and the electrical cables in your home are coated with it. There's no avoiding PVC at home. Maybe, like me, you've got quite a vinyl record collection too.
Of more concern are the applications where PVC replaces rubber. To make it soft and flexible, plasticizers such as phthalates are added. The resulting PVC is cheaper than leather, rubber or latex. You'll be familiar with PVC in waterproof coats, skiing equipment, shoes, plastic raincoats, shower curtains, shoe soles, pool liners, inflatable toys - all with that soft, slightly greasy feel. That's the effect of the plasticizers, and PVCs have a lot them of added - most of the plasticizer market worldwide is used in PVCs. Phthalates have been demonstrated to be endocrine disruptors, with some nasty potential health impacts.
PVC starts to degrade at just 70°C, releasing hydrogen chloride gas, so heat stabilsers are also often added. Traditionally derivatives of lead and cadmium were used, but nowadays much less harmful metallic soaps (such as calcium stearate) are used. Dioxins have been shown to form when PVC is burnt such as in landfill fires or hospital incinerators. Other health concerns are associated with the vinyl chloride monomer (VCM) that PVC is made from, which is a carcinogen. The risk in this case is to the workers during its manufacture.
It has been difficult to prove that plasticizers readily leach into the environment. They are tightly bound into the PVC, but we are all familiar with the that 'new plastic' smell from PVC products. Many of us remember the greasy film that used to coat the inside of our car windows - that was the phthalates from the vinyl seats. There's sufficient hard evidence for Toyota, Nissan and Honda to have eliminated PVC from their car interiors five years ago.
There have been calls for care around PVC for many decades. As I said earlier, a lot of the PVC used in your home would prove impossible to replace with other materials. However, you can check that you aren't wearing clothing made from PVC, that it hasn't been used in your children's toys, that you use a non-PVC shower curtain and that you avoid vinyl flooring.
Additionally, PVC products that have finished their useful life aren't collected for recycling by our council collection. PVC doesn't look good at any of the stages of it's life cycle! Needless to say - there's nothing made of PVC stocked at ZURI! The safest bet with this plastic is probably to avoid it as much as possible.
Monday, June 11, 2012
Polyethene plastic - numbers 2 and 4
Last time I wrote about the problems surrounding the use of plastic number 1 - PET, and how it's fairly easy to substitute plastic drink bottles with other alternatives.
Plastic number 2 is high density polyethene, also known as polyethylene. HDPE is a really useful plastic, and you probably have lots of it in your home, especially in bottled grocery items.
Milk, juice, shampoo and cleaning products are usually packaged in bottles made from HDPE. There are eco-advantages to this, as it takes a lot less fuel to transport a pallet of products packed in such lightweight bottles, compared to glass or metal. Once they are finished with, these bottles are easily recycled and in Australia our collection rates are quite high.
Often the HDPE is used to make products with a long life, such as buckets. These items can still be recycled once their useful life is over. So far so good.
The sibling of HDPE, however, is low density polyethylene. Made from the same raw material, but with a different structural arrangement, LDPE is thinner, more flexible and, because it is used in food packaging and plastic bags, much more of an environmental problem.
So many of the applications of LDPE are designed to be single use, from cling film to frozen food bags. People love plastic bags and often tell me that they are OK because they reuse them a few times. But they are still in landfill forever, so much so that they actually help to stabilise landfill. We create new mountains out of all our garbage, with the contents safely sealed away from effective decomposition.
I never use or accept plastic bags, and yet I seem to end up with huge collections at home, so ubiquitous are they. It is possible to recycle them outside Coles or Woolies. We recycle all the LDPE packaging from ZURI this way. Of course lots of places have banned the use of plastic shopping bags, or charged for them in order to encourage people to shift away from using them. South Australia leads the way for Australians, as they do with deposits on drink bottles and cans. People seem to survive!
A word of warning though. Don't be conned by the many plastic bags that proudly boast that they are 'degradable'. All that means is that they have fillers in them that allow the bags to break into small pieces once in landfill. This creates a secondary environmental problem as tiny scraps of plastic are scattered far and wide. The plastic doesn't go away, it just gets dispersed more efficiently into the environment.
That's another worry, as plastic out in the environment is ending up inside wildlife. A floating plastic bag can look like a sea jelly, be ingested by and animal who then dies and decays, releasing the bag to kill again. Tiny scraps of plastic are a real threat to fish and birds.
What's the alternative? You can use newspaper to wrap your scraps in, as our parents and grandparents did, or use cornstarch plastic bags for your rubbish. They perform just as well and LDPE bags and because they are made from a corn-based polymer, they are not only sustainable but will biodegrade in landfill.
At Katoomba ZURI we stock a range of fully compostable kitchen bags to suit every purpose. They are certified to the European standard EN13432 for home composting and Australian Standard AS4736-2006.
We have bags to line your kitchen compost collection - the full bag can then be tossed into the compost bin. We have rubbish bags in various sizes, small all purpose bags for lunches and fruit & vegie storage, bags for dog waste, and even a clingfilm.
There's nothing stylish about carrying your shopping in a plastic bag, but our ever popular envirosaxs have that problem solved. They roll up neatly to carry in your handbag, meaning you are never caught short without a bag when shopping. they are strong too, and can take up to 20kg.
To buy your fruit and vegies, we have several fabric options, which are reusable and double for storage in the fridge.
I can remember when plastic shopping bags were new and exciting. We took to them with gusto, though Americans stuck with the paper sacks. The first bags were thick and glossy and plastered with cigarette advertising. Times have changed! Can you imagine that now? Shows that change is possible.
Tuesday, June 5, 2012
Plastic number 1
A little while ago I was at a Tupperware party - which is all about plastic. I don't have a huge problem with plastic when it's designed for long term use. I've had some of my food storage containers for years and years and they're great. So much food might be wasted without them and its a better way to store leftovers than putting cling film over a bowl or plate. (I'm trying to train Mr C out of that habit!).
But... plastics designed for single or short use applications are a HUGE problem. Picture the pile you are leaving behind you as you go through life throwing away all those sandwich wrappers, toothbrushes, disposable razors, shopping bags, shampoo bottles etc etc and most of all, those rotten soft drink and water bottles.
At the Tupperware party, the sales lady asked if we knew what the '1' on the base of drink bottles meant. Several women thought they had heard that it meant 'single use'. I was quite horrified by this, and wondered if this urban myth was widespread. By that logic, anything marked with a '2' should be used twice, anything with a '4' should be used four times - well you see the problem.
It is true that plastics made from the monomer polyethylene terephthalate (PET) are ideally suited to single uses, such as drink bottles. But the claims that was made that these bottles shouldn't be reused and that the plastic 'dissolves' into the water the more often they are refilled were just rubbish. With that sort of misinformation around, it's no wonder that people feel overwhelmed by the environmental messages they are asked to absorb.
For a start, if plastics dissolved easily in water we wouldn't be able to store liquids in them. There wouldn't be the Great Pacific Garbage Patch either, as the plastics would be dissolved in the ocean, instead of floating in small pieces on it. PET bottles are easily recycled into a whole host of other products, including polar fleece, which is great. However, bottles have to be collected for recycling, and that just doesn't happen with most of them. On the rare occasions I'm in a food court I get quite anxious watching all the recyclables being dumped in with the rubbish. Discarded water bottles make up about 38% of general waste.
PET is also known as polyester and clothing made from that certainly doesn't go anywhere fast. This is one of the two main concerns with using this polymer. While it can be recycled, most of the PET produced (and it's the third most commonly made polymer) just sits in landfill forever, after a very short life of use.
The second problem is related, and it's the sheer amount of oil used to make and transport a single use item, such as a drink bottle. It's just wasteful to use up to seven litres of water
and a litre of crude oil to produce and transport one litre of bottled water. When surveyed, most people prefer the taste of tap water and many can't even tell the difference. Australians are blessed with fantastic tap water and there's only 1% of the environmental impact compared to drinking bottled water.
Soft drink is even worse when you look at the number of kilojoules in a typical bottle. Many of us couldn't eat the number of kilojoules we easily consume in liquid form - we would simply feel too full to keep eating.
Planet Ark reports that one bottle of water has the same impact as driving a car 1 kilometre, more than 65% of the bottles up in landfill and it takes 314,000 barrels of oil a year to make the bottles for the Australian market alone. Not very long ago nobody drank from PET bottles, and yet now Australians spend $500 million a year on the things!
If all the environmental negatives don't make people change their behaviour, then what will? Maybe the answer is hinted at in the claims made by the Tupperware lady. If people think their health is affected by the plastics they use, then maybe they will change. And new evidence is emerging that PET as its commonly used may leach endocrine disruptors such as phthalates and antimony.
The solution, as it so often is, is simple. Buy a stainless steel water bottle in a size that suits you and with a design that delights you. Fill from the tap. Enjoy. If you want to add bubbles, an investment in a Soda Stream will save you a fortune over time, more than repaying your initial investment.
Lots of lovely water bottles are always available at both ZURIs.
Friday, February 24, 2012
Rachel & Vanessa's Grand Day Out
People often ask us where we source all our lovely products. Well, we find quite a few at the Life in Style tradeshow, and our visit yesterday was a very exciting.
It always features many new products from Australian designers, and aisle after aisle beautiful things. Many have fabulous eco-credentials and we choose as many as we can that we know will fit right in at ZURI.
One our team, the marvellous Rachel, aka Morsey, came with me for the fair. We made new friends and met with old ones, and it's always nice to meet people in the flesh that you have been dealing with for a while.
We made quite a day of it, starting with coffee at 11am and finishing, after lunch, afternoon tea, champange, dinner and more coffee at 9pm. Here's some of what we found:
We already stock Michelle's lovely cards at ZURI Leura. They have a packet of seeds inside a cute pot-shaped card, and make a lovely gift for a gardener.
It always features many new products from Australian designers, and aisle after aisle beautiful things. Many have fabulous eco-credentials and we choose as many as we can that we know will fit right in at ZURI.
One our team, the marvellous Rachel, aka Morsey, came with me for the fair. We made new friends and met with old ones, and it's always nice to meet people in the flesh that you have been dealing with for a while.
We made quite a day of it, starting with coffee at 11am and finishing, after lunch, afternoon tea, champange, dinner and more coffee at 9pm. Here's some of what we found:
We already stock Michelle's lovely cards at ZURI Leura. They have a packet of seeds inside a cute pot-shaped card, and make a lovely gift for a gardener.
We have ordered some of these beautiful products from Emiti. All are handmade in Melbourne using organic and natural hand screen printed fabric. The owner of Emiti, Kim Stark, designs and prints all the fabric and you can see from her love of colour that she likes to focus on the light and bright side of life.
Some our most popular products are the Myrtle & Moss range and this is the proud owner, the fabulous Georgia.
This is Fiona from Pashom, a beautiful lady and a passionate fair trader. We have ordered even more hats than last year as they were so popular.
We also met Kate, from Elly Oak. We stock her beautiful cards at Leura, and those with heart designs were really popular for Valentine's Day.
Not forgetting local-girl-made-good, Peta of Elm Designs. We already stock her lovely range at Katoomba, but are really excited about the new styles coming soon.
Are you getting a sense it was a bit of a ladies day? Mr C rang to ask if I was missing him and if it was the same without him. Hmmmm.....
Thursday, November 24, 2011
The Giving Season
My lovely husband, Mr C, gave me a gorgeous pair of earrings for our anniversary. They were exactly the right shape, size, colour and style. He knows me so well! I exclaimed with delight as I opened them "Oh I love them!!!".
Isn't that what we all hope when we give a gift? That it is perfect for the recipient and that they will truly love it? That it will be used and cherished and not just become another piece of stuff to clutter up the home. So at ZURI, no gimmicky gifts - no foot spas, pie makers, slushie machines or milkshake makers. No huge TVs, get fit equipment or plastic whatnots. We do have lots of beautiful gifts for friends and relatives of all shapes, sizes and ages.
Here are some of our favourites:
Don't forget our annual Christmas Shopping Nights, where you can browse at your lesuire while you sip on bubbly and nibble on a mince pie. Have your gifts wrapped while you wait, or pick them up later.
Thursday 15th December at Katoomba 5-8 pm
Friday 16th December at Leura 5-8 pm
Saturday 17th December at Katoomba 3-7 pm
Isn't that what we all hope when we give a gift? That it is perfect for the recipient and that they will truly love it? That it will be used and cherished and not just become another piece of stuff to clutter up the home. So at ZURI, no gimmicky gifts - no foot spas, pie makers, slushie machines or milkshake makers. No huge TVs, get fit equipment or plastic whatnots. We do have lots of beautiful gifts for friends and relatives of all shapes, sizes and ages.
Here are some of our favourites:
Eco decorations from Polli |
Heat packs by Memi Designs |
Gorgeous skin care from Myrtle & Moss |
Lovely cushions by Bonnie & Neil |
Cross stitch clock from Skulk of Foxes |
Printspace prints |
Wall words from Adorning Al |
Christmas soaps from Skye's the Limit |
Don't forget our annual Christmas Shopping Nights, where you can browse at your lesuire while you sip on bubbly and nibble on a mince pie. Have your gifts wrapped while you wait, or pick them up later.
Thursday 15th December at Katoomba 5-8 pm
Friday 16th December at Leura 5-8 pm
Saturday 17th December at Katoomba 3-7 pm
Subscribe to:
Posts (Atom)