Kusakura, varimi vanoshandisa midziyo nenzira dzakasiyana siyana.Nekunzwisisa kusimba uye kusasimba kwechombo chega chega, varimi vanokwanisa kuita sarudzo dzakanakisa dzekushanda kwavo kuitira kuchengetedza masora asina kunaka.
Chimwe chishandiso chinogona kushandiswa nevarimi kurwisa sora kuisa mishonga yesora.Tsvagiridzo itsva iri kutibatsira kuti tinzwisise zviri nani mushonga wesora: r-toluene.
Ruridane ndeimwe yemishonga inonyanya kushandiswa muUnited States.Inogona kushandiswa kurapa sora muzvirimwa zvakaita sechibage, mhunga, nzimbe nesadza.Kemikari inouraya sora nekudzivirira photosynthesis mumiti.
Semishonga yesora inoshandiswa ku dejin, chakanakira ndechekuti inogona kuderedza kudiwa kwekurima.Pamusoro pekukanganisa hutano hwevhu, kurima kunogonawo kuwedzera kukukurwa kwevhu rinokosha.Kuderedza kurima kunodzivirira kukukurwa uye kuchengetedza ivhu rine hutano, nokudaro tichichengetedza ivhu redu.
Mushure mekunge kemikari yaiswa mumunda, atrazine inoora muvhu ichienda kune mumwe musanganiswa unonzi desethylatrazine (DEA).Ichi chinhu chakanaka nekuti DEA haina chepfu kune zvipenyu zvemumvura pane atrazine.
Mumakore achangopfuura, kushandiswa kwe kuTianjin kwave kuderera.Zvisinei, kunyange zvazvo kushandiswa kweatrazine kwakaderera, kusanganiswa kwechikamu chekubatsira DEA kwave kuchiwedzera.
Ryberg, anoshanda kuUS Geological Survey, anoda kuona zvimwe zvinhu kunze kwekushandiswa zvinokanganisa maitiro ekuwanda kwemishonga yesora munzizi.
Kushandurwa kwakanyanya kweatrazine kuDEA kuri kuburikidza nemabasa evhu tupukanana-senge fungi uye mabhakitiriya.Nokudaro, iyo yakawanda yeatrazine inosangana nevhu microorganisms, inokurumidza kukurumidza kuora.
"Kubva pane tsvakurudzo yapfuura, takafanotaura zvinhu zvinokanganisa kuwanda kwemvura muhova," akadaro Ryberg.“Izvi zvinosanganisira nzvimbo dzemvura, mamiriro ekunze, mamiriro ekunze uye nzvimbo dzekudyara chibage mukufambiswa kwemabasa.
"Mukutsvaga kwedu, takashandisa data iripo iyo yakatora nzvimbo dzakawanda dzenyika kubva 2002 kusvika 2012," Ryberg akatsanangura.Zvadaro, shandisa modhi kuongorora iyo data uye kuyedza kufanotaura kwechikwata kune zvakakonzera mafambiro mu r uye DEA.
Mumakore ekuma1990, mitemo mitsva yakagadzirisa dambudziko rekusvibiswa kwemvura pamusoro pemvura.Mitemo iyi yakaderedza kushandiswa kwehuwandu hwekudya pazvirimwa, uye yakatorambidza kushandiswa kwechigadziro pedyo nematsime.Chinangwa ndechekuderedza kuwandisa kwese kwekuputika mumvura.
Ryberg akati: "Kuisa pfungwa uye maitiro ekushandisa anoratidza kuti mirau yakapfuura yekubvisa gasi, kunyanya kuMidwest, yakabudirira.""Kuwedzera degassing kwakaputsika muDEA isati yapinda murukova."
Kunyange zvazvo chibage chakasimwa nzvimbo dzakawedzera pakati pe2002 ne2012, zvidzidzo zvakaratidza kuti kushandiswa kweatrazine kwakaderera munzvimbo dzakawanda dzeUnited States.
Tsvakurudzo yeRyberg yakawanawo kuti munzvimbo dzakaoma umo pasina matairi emvura, kutendeuka kweatrazine kunokurumidza.Mapombi ekudhonza mataira anogona kuiswa pasi pevhu muminda yekurima kubatsira mvura kuyerera uye kudzivirira mafashama.Migero yematairi yakaita semigero yemvura pamunda.
Nekuti mataira emvura anogona kubatsira mvura yemumunda kuyerera nekukurumidza kuburikidza nemapombi epasi pevhu, mvura ine nguva shoma yekubata ivhu.Naizvozvo, hutachiona hwevhu hunoda nguva shoma yekutakura mvura kubva muDEA kuenda kune hova dziri pedyo mvura isati yaora atrazine muDEA.
Kuwana uku kunoreva kuti nhanho yekusvika kuTianjin inogona kusangana nematambudziko akawanda mune ramangwana.Sezvo varimi vachitarisira kushanduka kwemamiriro ekunze uye mamiriro emunda wemvura, kuitira kuti zvirimwa zvikure pasi pemamiriro evhu akakodzera, michina yakawanda yemvura inogona kudiwa.
Tichitarisa kune ramangwana, Ryberg inotarisira kutarisa mishonga yezvipembenene pachikonzero ichi.Ryberg akatsanangura kuti: “Kuramba tichiongorora kwakakosha kuti tinzwisise kuderedzwa uye kutakurwa kwemishonga yezvipembenene.”
Varimi vacharamba vachienderana nemamiriro ezvinhu ari kuchinja, kusanganisira nharaunda dzesora.Kushandiswa kwemishonga yezvipembenene kuchachinja, uye kutarisa mishonga mitsva yezvipembenene kana misanganiswa yezvipembenene munharaunda idambudziko rinoramba riripo.
Zvishandiso zvinopihwa neAmerican Academy yeAgronomy.Cherechedza: Unogona kugadzirisa maitiro uye urefu hwezviri mukati.
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