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All of plastic water bottles are made with chemicals known as plasticizers which makes plastic that we use everyday durable and flexible. There are two main forms of plastic.
First one is called PolyVinyl chloride (PVC) and the other one is polycarbonate plastics.
PVC contains the most common used commercial plasticizer called phthalates.Polycarbonate plastics contain a chemical called bisphenol-A (BPA). On the bottom of most products you can find out from which kind of plastic they are made.Commercial products like water and soda bottles are made from PETE or PET – polyethylene terephthalate. The ingredients have flame retardants and UV stabilizers added. It’s the most commonly recycled plastic by most cities.Some cling wrap you use to preserve food, plastic containers, plumbing pipes, soft beverage bottles, shower curtains, some children toys, vinyl windows, and many other items are made from PVC or V - polyvinyl chloride. Made from petroleum resins and have flame retardants added too.Polycarbonate plastic is mostly used for electronic equipment, automobiles, sports safety equipment and medical devices, for reusable bottles and food storage containers that can be conveniently used in the refrigerator and microwave. Also used in tableware, 5 gallon water bottles, some baby bottles, and lining of metal food cans and others.The primary building block used to make polycarbonate plastic is bisphenol A (BPA).
Many researchers have studied the potential for trace levels of BPA to migrate from polycarbonate into food and beverages under conditions typical for uses of polycarbonate products. These studies include ones conducted by government agencies in the US, Europe and Japan, as well as studies conducted by academic researchers and by industry.Although the study data and analyses shows that potential human exposure to BPA from polycarbonate products in contact with foods and beverages is very low and poses no known risk to human health there are opposite reactions from the public and some free media.You probably can’t avoid bisphenol A (BPA). They are all around us, in compact discs, car parts, carpets, floor tiles, cosmetics - the list is endless. If you see plastic that is soft and pliable, then it is because of phthalates.Have you ever noticed how a re-used water bottle becomes brittle over time? That is because the phthalates have leached out of it - and you have drunk them.They mimic estrogen, which can change the way your endocrine system functions. In humans, exposure has been linked to chronic diseases, including diabetes, asthma, and cancer
Some of the researches that are known in US are influencing people’s opinions.Sheela Sathyanarayana, MD, associate professor of paediatrics at the University of Washington /Seattle Children’s Research Institute who researches endocrine-disrupting chemicals, says that although more research is needed, the results suggest that when BPA imitates estrogen, it interferes with different stages of pregnancy, such as fertilisation and implantation.So prevalent is BPA that tests by the U.S. Centers For Disease Control And Prevention in 2004 found it in 93 per cent of urine samples taken from a group of 2,517 people.
Furthermore, a landmark report on BPA published in 2008 by the U.S. National Toxicology Program concluded that there were concerns over BPA’s effects on the brain, behaviour and prostate gland development in foetuses, infants and children. It also found that because of the ratio of body weight to exposure, ‘the highest estimated daily intake of Bisphenol A in the general population occurs in infants and children’.Over the past few decades an estimated £150million has been spent on research into BPA, resulting in the publication of more than 5,000 papers - and scientists are still arguing over whether or not it is harmful.Such concerns also extend to phthalates - there are 25 different kinds and several are already banned in children’s toys in the EU and for certain types of food packaging.If you are concerned, you could avoid plastic mineral water bottles and use glass or stainless steel bottles filled from your tap or purifier. You could microwave meals in ‘microwave safe’ glass or on a plate instead of plastic containers. And if you want to store food in plastic containers, hunt down those that are labelled as BPA-free.After all, it's ridiculous (economically and environmentally) to constantly buy bottled water only to throw the bottle away each time. And even if you end up reusing those bottles, they could still potentially be harmful due to the leaching of chemicals into the water.In fact, a Harvard study showed participants' BPA levels increase after just one week of drinking from plastic bottles. But even removing just this one compound may not be enough.
Polyethylene terephthalate (PET) is the main polymer used to produce plastic bottles, and has previously been shown to affect the hormonal system.How can you reduce your exposure to toxins released by plastic?- Exchange your plastic bottles for stainless steel or glass
- Invest in a good quality carbon water filter and filter your tap water and store it in glass or ceramic containers
- It takes years for nature to completely break down these products even though manufacturers claim that they have a half-life of ten days.
- But have you seen plastic water bottles disintegrate in a few weeks? Rather, they seem to accumulate over a number of years. It takes a significant length of time for nature to disassemble the components of plastic. Then all the toxic matter is released into the surrounding environment to further poison soil, water, and air.
- Coliform. Coliform are rod-shaped bacteria, such as E. coli, that are normally present in the human intestine. The FDA says that bottled water may have up to 9.2 coliform organisms per 100 millilitres. See 21 CFR 165.110[b].
- Arsenic. Arsenic is a poison. The FDA says that bottled water may have up to 0.05 milli-grams per litre of arsenic. See 21 CFR 165.110[b].
- Chloride. Chloride is a compound of chlorine, a substance used to disinfect tap water. The FDA allows up to 250.0 milligrams per litre of chloride in bottled water. See 21 CFR 165.110[b].
- Iron. Iron is a metallic element. Your body needs some iron, but not too much. The FDA permits bottled water to contain up to 0.3 milligrams per litre of iron. See 21 CFR 165.110[b].
- Manganese. Manganese resembles iron and is used in fertilisers. Bottled water may contain up to 0.05 milligrams per litre of manganese. See 21 CFR 165.110[b].
- Phenols. Phenols are corrosive, poisonous acidic compounds. Your bottled water may contain up to 0.001 milligrams per litre of phenols. See 21 CFR 165.110[b].
- Dissolved solids. “Dissolved solids” is a catch-all phrase. The FDA allows bottled water to contain up to 500 milligrams per litre of dissolved solids, of whatever type. See 21 CFR 165.110[b].
- Zinc. Zinc is a metallic element. Your body needs some zinc, but not too much. The FDA permits bottled water to contain up to 5.0 milligrams per litre of zinc. See 21 CFR 165.110[b].
- Fluoride. Fluoride is purposely added to some bottled water. If so, the label should say so. In addition, bottled water that is not labelled as containing fluoride may contain up to 2.4 milli-grams per litre of fluoride. See 21 CFR 165.110[b].
- Barium……………………………… 2.0
- Chromium……………………………. 0.1
- Copper……………………………… 1.0
- Cyanide…………………………….. 0.2
- Nickel……………………………… 0.1
- Ethylbenzene (100-41-4)………………. 0.7
- Monochlorobenzene (108-90-7)………….. 0.1
- Styrene (100-42-5)…………………… 0.1
- Toluene (108-88-3)…………………… 1.0
- Xylenes (1330-20-7)………………….. 10.0
- “The bottled water shall not contain a combined radium-226 and radium-228 activity in excess of 5 picocuries per litre of water.”
- “The bottled water shall not contain a gross alpha particle activity in excess of 15 picocuries per litre of water.”
- “The bottled water shall not contain uranium in excess of 30 micro-grams per litre of water.”