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A28    SCIENCE
                     Saturday 11 May 2019

            California to ban pesticide it says hurts babies’ brains


            By BRIAN MELLEY                                                                                                     understood  pesticides  be-
            Associated Press                                                                                                    cause  it’s  been  so  exten-
            LOS  ANGELES  (AP)  —  The                                                                                          sively studied.
            nation’s  most  productive                                                                                          “We know a lot about what
            agricultural  state  moved                                                                                          it  does  to  developing  chil-
            Wednesday to ban a con-                                                                                             dren,  and  that  science  is
            troversial  pesticide  widely                                                                                       the  bedrock  of  the  action
            used  to  control  a  range                                                                                         that  Cal-EPA  is  announc-
            of  insects  but  blamed  for                                                                                       ing,”  she  said.  “Many  pes-
            harming  brain  develop-                                                                                            ticides  have  been  studied
            ment in babies.                                                                                                     well  in  lab  rats,  but  in  this
            The move cheered by envi-                                                                                           case,  we  actually  know
            ronmentalists would outlaw                                                                                          what it does to people.”
            chlorpyrifos  after  scientists                                                                                     Studies  in  cities  where  the
            deemed it a toxic air con-                                                                                          pesticide  was  once  used
            taminant  and  discovered                                                                                           to  kill  cockroaches  before
            it  to  be  more  dangerous                                                                                         it  was  banned  for  indoor
            than  previously  thought.                                                                                          use  in  2000  and  in  rural
            California   Environmental                                                                                          farmworker    communities
            Secretary  Jared  Blumen-                                                                                           showed  it  harmed  brain
            feld  said  it’s  the  first  time                                                                                  development  in  fetuses
            the state has sought to ban   In this July 21, 2015, file photo, a nearly ready-to-harvest almond is seen in an orchard in Newman,   and affected reading abil-
            a pesticide and the move     Calif.                                                                                 ity, IQ and led to hyperac-
            was overdue.                                                                                       Associated Press  tivity  in  children,  Solomon
            “This  pesticide  is  a  neuro-  we keep losing tools.”   Natural Resources Defense  II.  Its  heavy  use  has  often  said. Even head sizes were
            toxin,  and  it  was  first  put  Creamer  questioned  the   Council.   “The   science  left traces in drinking water  smaller  in  children  whose
            on  the  market  in  1965,”  scientific studies behind the   clearly shows that chlorpy-  sources.  A  2012  study  by  mothers  were  exposed  to
            Blumenfeld  said.  “So  it’s  decision  and  said  remov-  rifos is too dangerous to use  the University of California,  the pesticide.
            been  on  the  shelf  a  long  ing the pesticide could hurt   in  our  fields.  Since  Califor-  Berkeley, found that 87% of  While  the  ban  —  techni-
            time, and it’s past its sell-by  efforts  to  prevent  a  pest   nia  uses  more  chlorpyrifos  umbilical-cord  blood  sam-  cally  known  as  a  cancel-
            date.”                       like  the  Asian  citrus  psyllid   than  any  other  state,  this  ples  tested  from  newborn  lation  —  could  take  up  to
            The  decision  comes  after  from decimating the citrus   ban  will  not  only  protect  babies  contained  detect-  two  years  to  take  effect,
            regulators  in  several  states  industry  in  California  like  it   kids who live here, but kids  able levels of the pesticide.  the  state  Department  of
            have  taken  steps  in  re-  did in much of Florida. The   who eat the fruits and veg-  Dr. Gina Solomon, a medi-   Pesticide  Regulation  has
            cent  years  to  restrict  the  pest infects citrus trees with   gies grown here.”     cal professor at the Univer-  recommended  that  coun-
            pesticide  used  on  about  a fatal disease.              The pesticide is in a class of  sity of California, San Fran-  ty  agriculture  commission-
            60  different  crops  in  Cali-  Blumenfeld  said  California   organophosphates  chemi-  cisco,  and  former  deputy  ers  adopt  stricter  rules  on
            fornia,  including  grapes,  took action in part because   cally similar to a nerve gas  secretary  of  Cal-EPA,  said  where and how the chemi-
            almonds and oranges. Ha-     the federal government al-   developed  by  Nazi  Ger-    chlorpyrifos  is  unusual  in  cal can be applied, includ-
            waii  banned  it  last  year,  lowed  the  pesticide  to  be   many  before  World  War  that  it’s  one  of  the  best  ing larger buffer zones.q
            and  New  York  lawmakers  used after the Obama ad-
            recently sent a measure to  ministration tried to phase it
            the governor outlawing use  out.                          UN: Plastic waste pact approved with
            of the pesticide.            The   U.S.   Environmental
            DowDuPont,  which  pro-      Protection  Agency  under    U.S. among few holdouts
            duces the pesticide, said it  President  Donald  Trump
            was disappointed with the  reversed  that  effort  after
            decision  and  that  farmers  reevaluating  the  science.   GENEVA (AP) — Almost ev-
                                                                      ery country in the world has
            who  rely  on  the  pesticide  Environmental  groups  and
            say it will hurt their ability to  farmworkers   challenged   agreed  on  a  legally  bind-
                                                                      ing  framework  for  reduc-
            control insects.             that decision, and a feder-
            “It’s  a  very  important  part  al appeals court last month   ing polluting plastic waste,
                                                                      with  the  United  States  a
            of the crop protection tool  ordered the EPA to decide
            box,” said Casey Creamer,  by July whether to ban the     notable  exception,  United
                                                                      Nations environmental offi-
            president  of  California  Cit-  pesticide.
            rus  Mutual,  which  repre-  “This is a historic victory for   cials said Friday. An agree-
                                                                      ment  on  tracking  thou-
            sents 5,000 growers. “We’re  California’s   agricultural
            fighting  for  our  lives  here  communities  and  for  chil-  sands  of  types  of  plastic
                                                                      waste emerged at the end
            trying  to  protect  ourselves  dren   nationwide,”   said
            from deadly diseases, and  Miriam Rotkin-Ellman of the    of  a  two-week  meeting  of
                                                                      U.N.-backed  conventions
                                                                      on  plastic  waste  and  tox-
                                                                      ic,  hazardous  chemicals.   In this Sunday, Oct. 2, 2016 file photo, a man guides a raft through
                                                                      Discarded  plastic  clutters   a polluted canal littered with plastic bags and other garbage in
                                                                      pristine land, floats in huge   Mumbai, India.
                                                                      masses  in  oceans  and  en-                                          Associated Press
                                                                      tangles  wildlife,  sometimes  vention  means  countries  sector,  to  the  consumer
                                                                      with  deadly  results.  Rolph  will  have  to  monitor  and  market — that we need to
                                                                      Payet of the United Nations  track movements of plastic  do something,” Payet said.
                                                                      Environment  Program  said  waste outside their borders.  “Countries  have  decided
                                                                      the  “historic”  agreement  “It’s  sending  a  very  strong  to do something which will
                                                                      linked  to  the  186-country,  political signal to the rest of  translate into real action on
                                                                      U.N.-supported  Basel  Con-  the world — to the private  the ground.”q
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