Malinga ndi wogwira ntchito ku Grand Canyon National Park, akuluakulu a Park Service adalembapo za kupezeka kwa uranium wowopsa kwambiri womwe mwina udawonetsa antchito ndi alendo ku radiation yotetezeka nthawi 4,000.
Akuluakulu apamwamba a Park Service adapanga "mgwirizano wachinsinsi" kubisa kuti ng'oma zazikulu zitatu za uranium zidasungidwa mnyumba yosungiramo zinthu zakale ku Grand Canyon kwa zaka 18, ndikuwonetsetsa ogwira ntchito ku Parks ndi alendo - kuphatikiza ana - pamlingo wowopsa. radiation, National Park Service chitetezo, thanzi, ndi Ubwino woyang'anira Elston "Swede" Stephenson akuti.
Stephenson akuti adayesa kukopa oyang'anira Parks kuti achenjeze anthu kuti aliyense amene amabwera pamalowa pambuyo pa 2000 atha kuwululidwa ndi ma radiation omwe adawawerengera pamlingo wopitilira 4,000 kuchuluka kwa "chitetezo" cha Nuclear Regulatory Commission kwa ana komanso nthawi 400 kuchuluka kwa akulu. , koma "anamangidwa mwala" ndi oyang'anira. Akukhulupirira kuti Park Service idaphwanya lamulo posadziwitsa anthu za ngoziyo.
"Mwaulemu, sikunali chiwerewere kuti ndisadziwitse Anthu Athu, koma sindikanatha kuyikanso chiphaso changa (chathanzi ndi chitetezo) polola kuti izi zipitirire," Stephenson adalemba mu imelo yopepesa kwa akuluakulu a Park Service, sabata imodzi. atayimba mluzu pa kubisala kwa uranium mu imelo kwa ogwira ntchito ku Park Service, kuwauza kuti akumana ndi ma radiation omwe mwina sangawateteze.
Akuluakulu aboma adaphunzira chaka chatha kuti zidebe zitatu za galoni zisanu zomwe zidasungidwa mnyumba yosungiramo zinthu zakale ku Grand Canyon zidasefukira ndi miyala ya uranium yotentha kwambiri. Zidebezo zidasamutsidwa kupita ku nyumba yosungiramo zinthu zakale pomwe idatsegulidwa mu 2000 ndipo zidadzaza ndi miyala yomwe sinatseke. Anasungidwa pafupi ndi malo owonetserako taxidermy komwe, Stephenson akuti, ana nthawi zambiri amaima paulendo kuti awonetsere, kupitilira miyezo yachitetezo cha boma ya kuwulutsidwa kwa radiation mkati mwa masekondi atatu akuyimirira pafupi ndi ng'oma. Ngakhale akuluakulu, iye anati, akanakhoza kokha kuyima pafupi ndi ng'oma kwa theka la miniti asanaunjike milingo yowopsa ya radiation.
Chophimba cha radioactive chidapezedwa ndi wachinyamata wokhala ndi kauntala ya Geiger paulendo wopita kumalo osungiramo zinthu zosungiramo zinthu zakale ndipo mwachangu adasesa pansi pa rug, akutero Stephenson, ndikuwonjezera kuti akatswiri adataya miyalayi mumgodi wakale pafupi ndi Grand Canyon Village, kubisa kuwerengera kwawo mita nthawi yonseyi. anali kuyeretsa nyansi za radioactive. Atachita mantha ndi khalidwe lawo losachita bwino, adayitana Occupational Health and Safety Administration, omwe adangopeza ng'oma zopanda kanthu - zomwe "zinabwezeredwa mosadziwika bwino m'nyumbayi" ndipo zinaperekabe ma radiation ochepa.
Katswiri wazokhudza anthu Emily Davis akuti palibe "chiwopsezo chomwe chilipo kwa ogwira ntchito paki kapena pagulu," koma akuvomereza kuti uranium idachotsedwapo, ndipo anakana kuthana ndi zomwe a Stephenson adatsutsa atakumana ndi Arizona Republic.
