Sunday, May 3, 2015

Water pollution by textiles

How important is water for humans to be related how much attention pays by us.
Only 2.5% of Earth's water is freshwater and just 0.3% of it is easy accessible for humans. If this quantity of readily accessible freshwater, 8% goes for domestic use, 22% is used by industry, and other 70% for agriculture and irrigation. Recently years, water scarcity becomes even more common and getting worse. It is time to consider about this life issue.

Start from the textiles (fashion) industry, we would like to take "cotton" to be an example in this case. Because cotton accounts for 90% of all natural fibers used in the textile industry, it is used in 40% of all apparel produced, with synthetics accounting for 55% globally.
From growing process, its farming is consumed a huge amount of water compared with other natural fibers' those. Not only consume water, but also the pesticides and herbicides occupied for 10% of all agricultural chemicals and 25% of all pesticides used worldwide per year. It leads to pollute groundwater and soil at the same time.

                                                             Dye factory in Shaoxing by Lu Guang/ Greenpeace


Generally, cotton production accounts for 2.6% of global water usage annually. A T-shirt requires 2700 liters of water, and a third of pound of chemicals to make. Some 72 toxic chemicals through water supply from textile dyeing, rinsing, and treatment used large amounts of freshwater. Many chemicals can't be filtered or removed before discharging and then some waste water is released back freshwater resource. These chemicals cause environmental and human damages and also biological changes in our aquatic system. The World Bank estimates that around 20% of global industrial water pollution comes from textiles production.


In other hand, water pollution is not only lead to factories. But also washing clothes at home is big part. 40% of domestic water is from laundry, especially by hand washing in the developing countries. There is also a problem from laundry detergents to cause water pollution.

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