Textile industry and water pollution – brought to you by some of your favorite retailers.

14 11 2012

In 2011 Greenpeace published two reports: one investigating the discharge of hazardous substances from textiles manufacturing in China linked to major clothing and sportswear companies (Dirty Laundry), and another detailing the presence of NPEs in clothing and footwear of 15 leading brands (Dirty Laundry 2: Hung Out to Dry). With the publication of these reports Greenpeace challenged global brands to eliminate all releases of hazardous chemicals from their supply chains and products by 2020.

The Detox Campaign, as it is now known,  is especially targeting Chinese manufacturers.  With nearly 50,000 textile factories, the “factory of the world” is in fact the first victim of textile water pollution, prompting even the government to face up to the problem. “China is moving toward legislation where each company is responsible for its wastewater,” said Ulrike Kallee. “Awareness is now very high.”

The man-made chemical by-products of the textile industry are shown to have long-term effects on the environment and potentially devastating impacts on human and animal life. Furthermore, when testing clothing from 15 corporate brands, Greenpeace found that the chemicals used in the textile production process continue to be released when contaminated clothing is purchased and washed by consumers across the world.  These tests demonstrate the truly global danger posed by these toxic chemicals as they are released into rivers and water sources from the point of production to the consumer.

I don’t know why there is not an outcry about the clothing which is continuing to contaminate washwater – doesn’t it occur to people that  clothing contains chemicals which are being absorbed by our skin and causing us harm?  For that matter, think about the fabrics we subject ourselves to intimately every day, like sheets and towels.  Where is the disconnect here?

Greenpeace’s Detox Campaign is helping create a greener economy by challenging major global brands to rid their textile production processes of hazardous chemicals. The Detox Campaign has already successfully demonstrated the power of grassroots activism and social media in pressuring corporations to clean up their production practices.  Only months into the Detox Campaign, major retailers H&M, Puma, Adidas and Nike committed to eliminating discharges of hazardous chemicals across their supply chains by 202; most recently Marks & Spencer joined the group. In addition to pressuring corporations to adopt greener production practices, Greenpeace is pursuing legislative changes within the textile industries in several Asian countries and the European Union in order to protect rivers and the communities and ecosystems they support.

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Listmania: LBC Red List and others

19 06 2012

I love lists – you know, all those “best of” lists – movies, books, toxic chemicals.

Having a list makes it easy for us to tick off those bad chemicals that nobody wants to live with.  And in the building industry there have been a proliferation of lists which identify chemicals of concern:  the Perkins & Will Precautionary List, the LEED Pilot 11 and the Living Building Challenge Red List, among others.  And make no mistake, we think it’s critical that we begin to develop these lists, because we all need a baseline.   As long as we need to eat and breathe, toxics should be an important consideration.  We just have a problem with  how these lists are used.

So let me explain.

First, lists for the most part are developed on the basis of science that usually occurred five or 10 years ago, so they can  (though not always) be lagging indicators of safety to humans and the environment.  (But that’s a minor point, just wanted us to remember to maintain those lists.)

When using lists, it’s important to remember the concept of reactive chemistry:  many of the chemicals, though possibly deemed to be benign themselves, will react with other chemicals to create a third substance which is toxic.   This reaction can occur during the production of inputs, during the manufacture of the final product, or at the end of life (burning at the landfill, decomposing or biodegrading).   So isn’t it important to know the manufacturing supply chain and the composition of all the products – even those which do not contain any chemicals of concern on the list you’re using – to make sure there are no, say … dioxins created during the burning of the product at the landfill, for example?

It’s also important to remember that  chemicals are synergistic  – toxins can make each other more toxic.  A small dose of mercury that kills 1 in 100 rats and a dose of aluminum that will kill 1 in 100 rats, when combined, have a striking effect: all the rats die.  So if the product you’re evaluating is to be used in a way that introduces a chemical which might react with those in your product, shouldn’t that be taken into consideration?

So, O.K., the two problems above would be extremely difficult to define  – I mean, wouldn’t you need a degree in chemistry, not to mention the time and money, to determine if these could occur .  The average consumer wouldn’t have a clue.  Just wanted you to know that these problems do exist and contribute to our precautionary admonition regarding lists.

Each list has a slightly different interpretation – and lists different chemicals.  The Healthy Building Network published this Venn diagram of several of the most prevalent lists used in building materials:

The real reason we don’t like the way lists are used is that people see the list, are convinced by a manufacturer that their product doesn’t contain any of the chemicals listed, so without any further ado the product is used.

What does that mean in the textile industry, for example?

By attempting to address all product types, most lists do not mention many of the toxic chemicals which ARE used in textile processing. In the Living Building Challenge Red List, no mention is made of polyester, the most popular fiber for interiors, which itself is made from two toxic ingredients (ethylene glycol and terephthalic acid – both carcinogens, neither of which are on the list).  That means  a fabric made of polyester – even recycled polyester – that has been processed using some pretty nasty chemicals – could be specified.   Chemicals which are commonly used in textile processing  and which are NOT included on the Living Building Challenge Red List, for example,  but which have been found to be harmful , include:

Chlorine   (sodium hypochlorite NaOCL); registered in the Toxic Substances Control Act   as hypochlorous acid ; sodium chlorite
Sodium cyanide;   potassium cyanide
sodium sulfate   (Na2SO4)
Sodium sulfide
 APEOs ( Alkylphenolethoxylates)
Chromium III   and VI (hexavalent chromium)
Zinc
Copper
pentachlorophenol   (PCP)
permethrin
Dichloromethane   (DCM, methylene chloride)
Tetrachloroethylene   (also known as perchloroethylene, perc and PCE)
Methyl ethyl   ketone
Toluene:   toluene diisocyanate and other aromatic amines
Methanol (wood   alcohol)
Chloroform;   methyl chloroform
Arsenic
Phosphates   (concentrated phosphoric acid)
Dioxin –   by-product of chlorine bleaching; also formed during synthesis of certain   textile chemicals
Benzenes and   benzidines; nitrobenzene; C3 alkyl benzenes; C4 alkyl benzenes
Sulfuric Acid
Optical   brighteners: includes several hundred substances, including triazinyl   flavonates; distyrylbiphenyl sulfonate
Acrylonitrile
ethylenediaminetetra   acetic acid [EDTA]
diethylenetriaminepenta   acetic acid [DTPA]
Perfluorooctane   sulfonates (PFOS)

In the case of arsenic (used in textile printing and in pesticides) and pentachlorophenol (used as a biocide in textile processing) – the Living Building Challenge Red List expressly forbids use in wood treatments only, so using it in a textile would qualify as O.K.

Perhaps we should manufacture with a “green list” in mind: substituting chemicals and materials that are inherently safer, ideally with a long history of use (so as to not introduce completely new hazards)?

But using any list of chemicals of concern ignores what we consider to be the most important aspect needing amelioration in textile processing – that of water treatment.  Because the chemicals used by the textile industry include many that are persistent and/or bioaccumulative which can interfere with hormone systems in people and animals and may be carcinogenic and reprotoxic, and because the industry often ignores water treatment even when it is required (chasing the lowest cost) the cost of dumping untreated effluent into our water is incalculable.

The textile industry uses a LOT of water – according to the World Bank, 20% of industrial freshwater pollution is from the textile industry; that’s another way of saying that it’s the #1 industrial polluter of water on the planet.  In India alone textile effluent averages around 425,000,000 gallons per day, largely untreated[1].   The chemically infused effluent – saturated with dyes, de-foamers, detergents, bleaches, optical brighteners, equalizers and many other chemicals –  is often released into the local river, where it enters the groundwater, drinking water, the habitat of flora and fauna, and our food chain.  The production of polychlorinated biphenyls (PCBs) were banned in USA more than 30 years ago (maybe that’s why they’re not listed on any of these lists?), but are still showing up in the environment as unintended byproducts of  the chlorination of wastes in sewage disposal plants that have a large input of biphenyls (used as a dye carrier) from textile effluent.[2]

Please click HERE to see the PDF by Greenpeace on their new campaign on textile effluent entitled  “Dirty Laundry”, which points the finger at compliant corporations which basically support what they call the “broken system”.  It asks corporations to become champions for a post toxic world, by putting in place policies to eliminate the use and release of all hazardous chemicals across a textile company’s entire supply chain based on a precautionary approach to chemicals management, to include the whole product lifecycle and releases from all pathways.

Another problem in the textile industry which is often overlooked is that of end of life disposal.  Textile waste in the UK, as reported by The Ecologist, has risen from 7% of all waste sent to landfills to 30% in 2010.[3]  The US EPA estimates that textile waste account for 5% of all landfill waste in the U.S.[4]  And that waste slowly seeps chemicals into our groundwater, producing environmental burdens for future generations.  Textile sludge is often composted, but if untreated,  that compost is toxic for plants.[5]

What about burning:    In the United States, over 40 million pounds of still bottom sludge from the production of ethylene glycol (one of the components of PET fibers) is generated each year. When incinerated, the sludge produces 800,000 lbs of fly ash containing antimony, arsenic and other metals.[6]

These considerations are often neglected in looking at environmental pollution by textile mills[7] – but is never a consideration on a list of chemicals of concern.

So yes, let’s recognize that there are chemicals which need to be identified as being bad, but let’s also look at each product and make some kind of attempt to address any other areas of concern which the manufacture of that product might raise.  Using a list doesn’t get us off the hook.


[1] CSE study on pollution of Bandi river by textile industries in Pali town, Centre for Science and Environment,New Delhi, May 2006 and “Socio-Economic, Environmental and Clean Technology Aspects of Textile Industries in Tiruppur,South India”, Prakash Nelliyat, Madras School of Economics.  See also:

Jacks Gunnar et al (1995), “The Environmental Cost of T-Shirts”, Sharing Common Water Resources, First Policy Advisory Committee Meeting, SIDA, Madras Institute of Development Studies, Chennai.

Also:  CSE: Down to Earth Supplement on Water use inIndia, “To use or to misuse”;  http://www.cseindia.org/dte-supplement/industry20040215/misuse.htm

[3] Ecologist, “’Primark effect’ sill clogging up UK landfills”, January 19, 2010,  http://www.newsinferno.com/legal-news/possible-link-between-formaldehyde-lou-gehrigs-disease-found/2926

[5] Scientia Agricola, vol. 62, no 3 May/June 2005

[6] Sustainable Textile Development at Victor,  http://www.victor-innovatex.com/doc/sustainability.pdf

[7] Assuming a beginning value of 375ppm of antimony in an undyed polyester fiber, as much as 175ppm of antimony can be leached from the fiber during the dyeing process. This seemingly insignificant amount translates into a burden on water treatment facilities and is still a hazardous waste when precipitated out during treatment. The U.S. EPA lists the allowable limit for antimony in drinking water to be 6 parts per billion (ppb). Countries that can afford technologies that precipitate the metals out of the water are left with a hazardous sludge that must then be disposed of in a properly managed landfill or incinerator operations. Countries who cannot, or who are unwilling to employ these end-of-pipe treatments, release antimony along with a host of other dangerous substances to open waters. Victor Defining Sustainability, http://www.victor-innovatex.com/doc/sustainability.pdf