Bottled Water – Damaging The Environment

For the past decade or so, the level of bottled water sales has been steadily growing by 7 – 8% per annum. The level of consumption globally is estimated to have more than doubled between 1997 and 2005.

Approximately 200 billion bottles of water are consumed worldwide annually. The US market is the biggest by far, making up 25% of worldwide sales.

Recently there has been a backlash against the use of bottled water. One of the main causes for concern is the environmental impact of bottled water. The actual bottles are generally made from Polyethylene terephthalate (PET), which is a recyclable material – but the actual level of recycling is believed to be lower than 25%.

The energy used for production, transportation and disposal of the bottles is also a source for concern among environmentalists. When compared with tap water, bottled water produces carbon emissions which are 5,000 times higher per litre.

In spite of the very effective marketing of the bottled water suppliers, there seems to be no evidence that bottled water is, in developed countries at least, more beneficial for your health than plain old tap water. Some bottled waters have been found to contain estrogenic chemicals and even uranium. Most bottled waters have some level of salt present – which is not good for your blood pressure.

In terms of taste there is little concrete evidence that bottled water is any better than tap water. In a blind tasting in the UK, London tap water came in third place out of a field of 24 different water varieties. In the USA, a 2007 episode of Penn and Teller (which might have been more entertaining than scientific – but still merits a mention) demonstrated that diners could not distinguish between bottled water and water drawn from a garden hose.

In terms of cost to the customer the precise ratio will vary according to the brand of water under consideration, but generally speaking bottled water is priced at several hundred times more per litre than tap water.

So, considering environmental impact, health, taste and cost, bottled water really doesn’t have a lot going for it. If you really can’t bear the taste of the water that comes out of your tap then you might be better advised to think about some type of home filtration system. The cost will be higher than tap water, but much lower than bottled water. If you opt for a solution such as the Brita water filter jug then you will know that it’s better for the environment as all parts of the filters are recyclable.

Of course, home filtration systems are great for when you’re at home – but if you like to carry water with you when you’re out and about then you could use and reuse a bottle which you fill at home, or the office, before you leave. Again, Brita water are a fine example having teamed up with international designer Orla Kelly to produce the Wottle – which claims to be the world’s first designer reusable bottle and is manufactured from 100% recycled material. Or you could just do a bit of recycling of your own and use an old Coke bottle.

This entry was posted on Wednesday, August 5th, 2009 and is filed under Health. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

Leave a Reply

You must be logged in to post a comment.

Best Spy Cameras In The Market:


-->

Living Cells: A Sure Aid To Medical Research

The medical group is buzzing with the interest initiated by the concept of stem cells. Also known as living cell, a stem cell forms the important base which is needed by every organ, tissue and cell in the body. These living cells are unspecialized cells that have two defining properties in them which make them unique and different from all other types of cells. These two special properties are their ability to differentiate into other cells and their ability to self-regenerate.

These Living Cells have in them the inherent property of dividing and renewing themselves for long durations of time. Unlike the case of other types of cells like muscle cells, blood cells, or nerve cells which do not normally divide themselves, it is seen that living cells can replicate many times. This property of replicating several times permits for their use in stem cell therapy applications. Living cells can also give rise to specialized cells. This important property forms the basis of all living cell therapy uses. While differentiating, the cell usually goes through several stages, becoming more specialized at each step.

Within the class of living cells too there are differentiated different types of stem cells. These include embryonic stem cells that exist only at the earliest stages of embryonic development; as embryonic stem cells can form all cell types of the body as a result of which they are referred to as pluripotent living cells. These living cells are restrictive to the type of cells they can further generate and generally can only form a limited number of cell types corresponding with their tissues of origin; they are referred to as multipotent living cells.