Difference between revisions of "Microfibers"

From Beachapedia

Line 27: Line 27:
 
So what are the solutions? There appear to be no easy answers.  One way to begin to address the problem is to try to make clothes that shed less plastic fibers when washed. In 2013, Browne launched a new project “[http://www.theguardian.com/sustainable-business/2014/oct/27/toxic-plastic-synthetic-microscopic-oceans-microbeads-microfibers-food-chain Benign by Design],” to help reduce the number of microfibers released into the oceans. Working collaboratively with designers to create fabrics that were more durable and released less plastic waste during wash cycles, this project could help stop the problem of microfiber pollution at the source.
 
So what are the solutions? There appear to be no easy answers.  One way to begin to address the problem is to try to make clothes that shed less plastic fibers when washed. In 2013, Browne launched a new project “[http://www.theguardian.com/sustainable-business/2014/oct/27/toxic-plastic-synthetic-microscopic-oceans-microbeads-microfibers-food-chain Benign by Design],” to help reduce the number of microfibers released into the oceans. Working collaboratively with designers to create fabrics that were more durable and released less plastic waste during wash cycles, this project could help stop the problem of microfiber pollution at the source.
 
<br><br>
 
<br><br>
Another way to address the problem is to install filters on washing machines that catch the microfibers in the wastewater. Although filters are not a common feature in washing machines, some manufacturers do include them and filters are commercially available. A common application is to protect the operation of septic systems.
+
Another way to address the problem is to install filters on washing machines that catch the microfibers in the wastewater. Although filters are not a common feature in washing machines, some manufacturers do include them and filters are commercially available. A common application is to protect the operation of septic systems. Other more innovative filters are [http://www.onegreenplanet.org/news/microfiber-catcher-wants-to-stop-plastic-from-entering-oceans/ reportedly under development].
 
<br><br>
 
<br><br>
 
The final place to catch microfibers before they are flushed to the ocean is at wastewater treatment plants.  Although a typical secondary treatment plant will not do an effective job removing microfibers, plants that employ tertiary treatment to produce reclaimed water for non-potable uses typically use filtration which would remove microfibers. Wastewater treatment plants that use advanced treatment to produce potable water use microfiltration (as well as other technologies) which will also effectively remove microfibers.  If [http://beachapedia.org/Wastewater_Recycling wastewater is recycled] and does not reach the ocean, the microfibers won’t get there either.
 
The final place to catch microfibers before they are flushed to the ocean is at wastewater treatment plants.  Although a typical secondary treatment plant will not do an effective job removing microfibers, plants that employ tertiary treatment to produce reclaimed water for non-potable uses typically use filtration which would remove microfibers. Wastewater treatment plants that use advanced treatment to produce potable water use microfiltration (as well as other technologies) which will also effectively remove microfibers.  If [http://beachapedia.org/Wastewater_Recycling wastewater is recycled] and does not reach the ocean, the microfibers won’t get there either.
 
<br><br>
 
<br><br>
 +
 
==References and Additional Information Sources==
 
==References and Additional Information Sources==
  

Revision as of 14:35, 23 May 2016


Microfiber illustration. Source: Laszlo Kubinyi, Outsideonline.com

The problem of plastics accumulating in the ocean has been widely documented and there are indications that the problem may be getting worse. In fact, there may be more plastic than fish in the ocean by 2050. Efforts to combat this problem range from bans on plastic bags and polystyrene to beach cleanups to smoking bans on beaches (cigarette filters are plastic) to use of skimmer devices in harbors to much larger proposed cleanup devices in the open ocean. To address plastic pollution caused by microbeads that are present in facial scrubs, body wash products and other cosmetics, bans have been enacted in several jurisdictions to prohibit the use of microbeads in these products, and in late 2015 a national Microbead-Free Waters Act bill was signed into law.

But there’s another microplastic problem in the ocean and on our beaches that hasn’t got much attention and appears to be more difficult to address that microbeads – microfibers.

In 2011, British ecologist Mark Anthony Browne published a study, Accumulation of Microplastic on Shorelines Worldwide: Sources and Sinks describing the discovery of micron-scale synthetic fibers, mostly polyester and acrylic, in sediments along beaches around the world, with the highest concentrations appearing near wastewater-disposal sites. That strongly suggested that the micro-fibers came from apparel, a hunch he checked by finding 1,900 fibers in the filter of a washing machine after washing a single fleece jacket. A similar study at VU University Amsterdam in 2012 estimated that laundry wastewater is sending around two billion synthetic microfibers per second into Europe’s waters.

Here is the abstract from Mark Browne’s study:

"Plastic debris <1 mm (defined here as microplastic) is accumulating in marine habitats. Ingestion of microplastic provides a potential pathway for the transfer of pollutants, monomers, and plastic-additives to organisms with uncertain consequences for their health. Here, we show that microplastic contaminates the shorelines at 18 sites worldwide representing six continents from the poles to the equator, with more material in densely populated areas, but no clear relationship between the abundance of miocroplastics and the mean size-distribution of natural particulates. An important source of microplastic appears to be through sewage contaminated by fibers from washing clothes. Forensic evaluation of microplastic from sediments showed that the proportions of polyester and acrylic fibers used in clothing resembled those found in habitats that receive sewage-discharges and sewage-effluent itself. Experiments sampling wastewater from domestic washing machines demonstrated that a single garment can produce >1900 fibers per wash. This suggests that a large proportion of microplastic fibers found in the marine environment may be derived from sewage as a consequence of washing of clothes. As the human population grows and people use more synthetic textiles, contamination of habitats and animals by microplastic is likely to increase.”


Browne and several colleagues gathered sand samples from 18 beaches on six continents for analysis. Every beach tested contained microfibers, and nearly 80 percent were polyester or acrylic. According to an article in Science,

“Not a single beach was free of the colorful synthetic lint. Each cup of sand contained at least two fibers and as many as 31. The most contaminated samples came from areas with the highest population density, suggesting cities were an important source of the lint.”


Microplastics (including microfibers) are easily ingested by marine life which may end up on our dinner plates. Essentially the plastics we are washing down the drain with our laundry may work their way up the food chain and come back to haunt us.

The problem of microfibers is not just an ocean issue. When Sherri “Sam” Mason, a chemist with the State University of New York at Fredonia and a group from the Illinois-Indiana Sea Grant program took samples from southern Lake Michigan in 2013, about 12% of the debris consisted of microfibers. Mason’s research also indicated that microfibers seem to be getting stuck inside fish in ways that other microplastics aren’t. Microbeads and fragments that fish eat typically pass through their bodies and are excreted. But microfibers were enmeshed in the gastrointestinal tracts of some fish Mason and her students examined. They also found fibers inside a double-crested cormorant, a fish-eating bird.

Mason also speculated that there is a chance that fibers are in drinking water piped from the lakes. And your beer may also contain microplastics. Scientists reported in 2014 that two dozen varieties of German beer contained microplastics.

Solutions

So what are the solutions? There appear to be no easy answers. One way to begin to address the problem is to try to make clothes that shed less plastic fibers when washed. In 2013, Browne launched a new project “Benign by Design,” to help reduce the number of microfibers released into the oceans. Working collaboratively with designers to create fabrics that were more durable and released less plastic waste during wash cycles, this project could help stop the problem of microfiber pollution at the source.

Another way to address the problem is to install filters on washing machines that catch the microfibers in the wastewater. Although filters are not a common feature in washing machines, some manufacturers do include them and filters are commercially available. A common application is to protect the operation of septic systems. Other more innovative filters are reportedly under development.

The final place to catch microfibers before they are flushed to the ocean is at wastewater treatment plants. Although a typical secondary treatment plant will not do an effective job removing microfibers, plants that employ tertiary treatment to produce reclaimed water for non-potable uses typically use filtration which would remove microfibers. Wastewater treatment plants that use advanced treatment to produce potable water use microfiltration (as well as other technologies) which will also effectively remove microfibers. If wastewater is recycled and does not reach the ocean, the microfibers won’t get there either.

References and Additional Information Sources

Accumulation of Microplastic on Shorelines Worldwide: Sources and Sinks, Environmental Science and Technology. 2011.

Dirty Laundry: Scientists Warn of Microfiber Pollution in Great Lakes, NBC News, 2015.

Fleeced again: How microplastic causes macro problems for the ocean, Grist, 2011.

From Spin to Sea: Polyester Microfibers Clog Our Beaches, Triple Pundit, 2014.

Great Lakes struggling with invisible threat of plastic microfibre pollution, The Guardian, 2015.

How much may German beers be contaminated by microplastics?, Science Daily, 2014.

Inside the lonely fight against the biggest environmental problem you've never heard of, The Guardian, 2014.

Laundry Lint Pollutes the World's Oceans, Science Magazine, 2011.

Oceans Teem with Tiny Plastic Particles, Scientific American, 2011.

The Invisible Nightmare in Your Fleece, Outsideonline, 2015.

Your clothes are polluting the ocean every time you do laundry, Treehugger, 2014.