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A28    SCIENCE
                Thursday 16 March 2017


















            Yoga pants, cozy clothes may be key source of sea pollution


            JENNIFER KAY                                                                           Other  recent  studies  have  other apparel from synthet-
             Associated Press                                                                      shown that microfibers can  ic  materials  —  to  support
            KEY  LARGO,  Fla.  (AP)  —                                                             end  up  in  the  stomachs  research  into  the  preva-
            Comfortable  clothes  are                                                              of  marine  animals,  includ-  lence  of  microfiber  pollu-
            emerging  as  a  source  of                                                            ing  seafood,  like  oysters.  tion and promote informa-
            plastic  that’s  increasingly                                                          Experts  increasingly  sug-  tion  for  consumers  about
            ending  up  in  the  oceans                                                            gest that manufacturers of  ways to minimize microfiber
            and  potentially  contami-                                                             washing  machines  —  not  shedding in laundry.
            nating seafood, according                                                              just  body  washes  or  other  Consumer-focused  efforts
            to  Gulf  Coast  researchers                                                           scrubbing  detergents  —  such  as  Patagonia’s  out-
            launching a two-year study                                                             may  need  to  be  targeted  reach,  liquor  giant  Bacar-
            of  microscopic  plastics  in                                                          next  in  efforts  to  reduce  di’s decision to stop adding
            the waters from south Tex-                                                             plastic waste in the oceans.  plastic  straws  and  stirrers
            as to the Florida Keys.                                                                The  Gulf  Coast  study  will  to  cocktails  at  company
            The  project  ,  led  by  the                                                          use  McGuire’s  methodol-    events,   Miami   Beach’s
            Mississippi-Alabama    Sea                                                             ogy to determine the prev-   ban on Styrofoam contain-
            Grant  Consortium,  will  rely                                                         alence  of  microfibers  and  ers  or  the  federal  micro-
            partly on volunteers partic-                                                           other  microscopic  plastics  beads  ban  can  help  slow
            ipating in coastal cleanup   In this, Tuesday, Feb. 7, 2017 photo, a possible plastic microfiber,   in the region’s waters.  the rate of microfibers and
            events.  It  also  will  expand   left, is shown through a microscope during an examination of   A plastic “garbage patch”  other plastics adding up in
            a year’s worth of data col-  nearby ocean water in Key Largo, Fla.                     like  one  circulating  in  the  the  oceans,  but  the  pollu-
            lected around the state of                                            Associated Pres  Pacific Ocean is unlikely in  tion  also  needs  to  be  ad-
            Florida that predominantly   the  microfibers  into  natu-  from   rinse-off   cosmetic   the Gulf of Mexico, but the  dressed  at  its  source  and
            found microfibers — shreds   ral  waterways,  eventually   products  in  2015  because   regional  study  may  reveal  at  wastewater  treatment
            of  plastic  even  smaller   reaching the sea.            of  the  potential  threat  to   coastal  areas  particularly  plants, Wessel said.
            than  microbeads  flowing    “Anything  that’s  nylon  or   fish and other wildlife.   prone to the accumulation  “It  would  be  really  great
            down  bathroom  sinks  and   polyester,  like  the  fleece-  Instead, McGuire predomi-  of plastics, said Caitlin Wes-  if  the  washing  machine
            shower drains.               type  jackets,”  University  of   nantly  found  microfibers,   sel,  regional  coordinator  companies  would  get  on
            Yoga  pants,  Patagonia’s    Florida  researcher  Maia    even  smaller  than  micro-  for  the  National  Oceanic  board  and  come  up  with
            cozy  jackets,  sweat-wick-  McGuire said.                beads  and  coming  from     and  Atmospheric  Adminis-   a filter to trap these micro-
            ing athletic wear and oth-   When  McGuire  set  out  to   places  most  people  don’t   tration’s Marine Debris Pro-  fibers,” Wessel said. “I think
            er  garments  made  from     study  the  kinds  of  plastic   consider dangerous to ma-  gram.  “There  hasn’t  been  there’s a big push right now
            synthetic  materials  shed   found in Florida waters, she   rine life: their closets.  a  lot  of  baseline  study  — nobody really disagrees
            microscopic  plastic  fibers   expected  to  mostly  find   Studies of the Great Lakes   covering   microplastics,  that marine debris is an is-
            —  called  “microfibers”  —   microbeads — the brightly   and New York Harbor and      and  the  studies  that  have  sue  that  needs  to  be  ad-
            when  they’re  laundered.    colored plastic spheres the   its  surrounding  waterways   been  done  haven’t  been  dressed.”
            Wastewater  systems  flush   U.S.  government  banned     found    high   concentra-   as  wide-reaching,”  Wessel  McGuire’s  Florida  Micro-
                                                                      tions  of  plastics  pollution,   said. “We’re hoping to use  plastic   Awareness   Proj-
              WE BRING OUR LIVE GIRL ON GIRL SHOW TO YOU              including microbeads. Mc-    the data as a baseline but  ect  from  September  2015
                                                                      Guire’s  data  from  Florida   also  find  sources  of  micro-  to  August  2016  analyzed
                                                                      waters,   compiled    from   plastics  and  find  out  what  samples   collected   by
                                                                      1-liter samples run through   types  of  microplastics  are  volunteers  from  256  sites
                                                                      filters fine enough to catch   the  biggest  issue  in  the  around  the  state’s  penin-
                                                                      microfibers  missed  by  the   Gulf.” The effects of micro-  sula  and  the  Florida  Keys.
                                                                      trawls  used  in  the  larger   fibers in the food chain re-  Eighty-nine  percent  con-
                                                                      studies, adds to the grow-   main  under  investigation,  tained  at  least  one  piece
                                                                      ing  amount  of  research    but the emerging data has  of plastic.
                                                                      focused  on  plastic  pieces   prompted  clothing  com-   Microfibers  comprised  the
                                                                      that degrade but never re-   pany  Patagonia  —  which  vast  majority  of  plastic
                                                                      ally disappear.              makes  fleece  jackets  and  found — 82 percent.q
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