By now youve probably heard the news: your favourite fleece sheds hundreds of thousands of tiny synthetic fibres every time its washed. Those fibres often skirt through wastewater treatment plants and make their way into aquatic organisms that eat the floating fibres. Thats bad for the fish, because the fibres are vectors for toxins and can retard their growth, and it could be bad for people who eat the fish. This shedding puts outdoor manufacturers in a bind: many want to protect the outdoors, but they also want to sell product. Consumers who love their warm fleece are also faced with a dilemma. Some brands have taken steps to address the threat of microfibers, which are considered a type of microplastic pollution. In 2015, Patagonia asked university researchers to quantify how much fibre its products shed during laundrythe answer was a lot. And the Outdoor Industry Association has convened a working group to start examining microfiber pollution. But heres the thing: rather than using money to develop a process that prevents the shedding, most brands are still focused on defining their culpability. Because there are other sources of microfiber pollution in the sea, such as fraying fishing ropes, these brands want to be able to know for certain how much theyre contributing before they move further. That wont be an easy task, but Mountain Equipment Co-op, an REI-like retailer headquartered in Vancouver, recently gave microplastics researchers at the Vancouver Aquarium a $37,545 grant to help scientists develop a tracking process. The year-long project will be led by the aquarium’s ocean pollution research program director and senior scientist Peter Ross. The first step is to create a database of fibres from up to 50 different textiles commonly used in MECs house-brand apparel. This wont be a simple spreadsheet with the names of the polymers, like polyester or nylon. Each piece of outdoor apparel is treated with chemicals like a durable water repellent (DWR). Then theres the kaleidoscope of colours in each brands catalogue. Those variants give the fibres a unique profile, sort of like a fingerprint. To capture those fingerprints, Ross and his team will use a machine called a Fourier Transform Infrared (FTIR) spectrometer, which looks at the fibres on a molecular level. Once that database is created, the researchers will subject the fibres to saltwater, sunlight, wave action, freshwater, and bacteria to mimic the types of weatherisation that they would experience in the field. In fact, one set of fibres will be staked out in Vancouver Harbor and another in the Frasier River estuary. A third set, for the sake of experimentation, will be artificially weathered inside the aquariums lab. After increments of time30, 60, 90, and 180 daysthe fibres will be re-examined and any changes in those polymer fingerprints will be documented and added to a database. The hope is that sometime in the future, a random synthetic microfiber could be pulled from Vancouver Bay, analysed, and determined to originate from an MEC jacket. Why bother with this experiment, as the chances of finding an MEC fibre in the vast ocean are infinitesimally small? Ross says it will advance much needed basic research by shedding light on how fibres change once theyre in the environment. For MEC, this is a chance to lead the apparel industrys response to microfiber pollution by providing a protocol for tracing microfiber pollution back to its source. To prove that the protocol is effective and viable, it will need to be repeated many times, and, eventually, by different researchers in different labs. Arcteryx is next in line. The company will also be giving the aquarium a grant (it wouldnt say how much) to study fibres coming off its apparel. Sceptics like Stiv Wilson, campaign director for environmental activism group the Story of Stuff, thinks this is all a waste of time. We know theres a problem, and he thinks brands should address it in manufacturing instead of delaying. Eco-conscious outdoor brands keep telling me that more research needs to be done on the harms of washing synthetic fabrics such as fleeces and yoga pants, he wrote recently. Do we really need more research to tell us that spreading millions of trillions of persistent fossil-fuel-derived fibres from polyester clothing is a bad idea? MECs chief product officer Jeff Crook asserts that for one or a handful of outdoor apparel brands to redesign their textiles would do little to stop the larger flow of synthetic microfibers. Walk into any H&M or other fast-fashion retailer and youll be hard pressed to find clothes made only from natural materials. Motivating the largest apparel brands to act, he says, will require developing a tool for directly implicating their products as contributors to microfiber pollution. Beyond all that, another major hurdle lurks. If or when apparel brands do succeed in redesigning textiles to reduce microfiber shedding, who will set that bar? That, says Crook, is where international standards are needed. We have standards meetings at every trade show on things like sleeping bags, on camp-stove temperatures, he says. Without global standards that set a limit on how many synthetic fibres garments can shed while being laundered, he says, were all just dancing around this problem that we know is there: that clothes are sending microplastics into the marine ecosystem.
Outside Online, 25 May 2017 ;https://www.outsideonline.com ;