Pakutanga, munhu angasaona kubatana kuripo pakati pekudya-nyama uye matambudziko makuru ezvakatipoteredza akadai sekudziya kwepasi, kuwedzera kwegwenga, kunyangarika kwemasango anopisa uye kutaridzika kwemvura ine acid. Kutaura zvazviri, kugadzirwa kwenyama ndiro dambudziko guru renjodzi dzakawanda dzepasi rose. Hakusi chete kuti chikamu chimwe muzvitatu chepasi chave kushanduka kuva gwenga, asiwo kuti ivhu rekurima rakanakisa rakashandiswa zvakanyanya zvekuti vakatotanga kurasikirwa nekubereka kwavo uye havachapi goho rakakura kudaro.
Kare, varimi vaichinjanisa minda yavo, vairima goho rakasiyana gore negore kwemakore matatu, uye mugore rechina havana kumbodyara munda. Vakashevedzera kuti vabve pamunda "sawa". Nzira iyi yakaita kuti mbesa dzakasiyana dzidye kudya kwakasiyana gore negore kuitira kuti ivhu riwane zvakare kuorera. Sezvo pashure pokupera kweHondo Yenyika I kudiwa kwezvokudya zvemhuka kwakawedzera, nzira iyi zvishoma nezvishoma yakanga isingachashandiswi.
Varimi iye zvino vanowanzorima goho rimwe chete mumunda mumwe chete gore negore. Nzira chete yekubuda nayo ndeyekupfumisa ivhu nemafetireza ekugadzira uye mishonga yezvipembenene - zvinhu zvinoparadza sora uye zvipembenene. Chimiro chevhu chinovhiringidzwa uye chinova brittle uye chisina hupenyu uye nyore nyore. Hafu yeminda yese yekurima muUK yave panjodzi yekuderedzwa kana kukukurwa nemvura. Pamusoro pazvo zvose, masango aichimbofukidza zvizhinjisa zveBritish Isles akatemwa zvokuti isingasviki zvikamu zviviri muzana zvinosara.
Zvinopfuura 90% yemadziva, madziva nemachakwi zvakacherwa kuti pave neminda yakawanda yekurima chikafu chezvipfuyo. Munyika yose mamiriro ezvinhu akafanana. Fetereza yemazuva ano yakavakirwa panitrogen uye zvinosuwisa kuti handiwo mafetireza anoshandiswa nevarimi ose anoramba ari muvhu. Mamwe anokukurwa munzizi nemadziva, umo nitrogen inogona kukonzera maruva ane chepfu. Izvi zvinoitika apo algae, inowanzokura mumvura, inotanga kudya pane nitrogen yakawandisa, inotanga kukura nokukurumidza, uye inovhara chiedza chezuva kune zvimwe zvirimwa nemhuka. Duva rakadaro rinogona kushandisa mweya weokisijeni uri mumvura, nokudaro uchiputira zvirimwa zvese nemhuka. Nitrogen inogumawo mumvura yekunwa. Kare, zvaidavirwa kuti migumisiro yekunwa mvura yakazara nenitrogen yaiva kenza uye chirwere muvana vachangoberekwa umo masero matsvuku eropa anotakura okisijeni akaparadzwa uye aigona kufa nekushayikwa kweokisijeni.
British Medical Association yakafungidzira kuti vanhu vechiRungu vanosvika mamiriyoni mashanu vanogara vachinwa mvura ine nitrogen yakawandisa. Mishonga ine ngozi zvakare. Iyi mishonga inouraya zvipembenene inopararira zvishoma nezvishoma asi zvechokwadi kuburikidza necheni yezvokudya, ichiwedzera kuwedzera, uye kana yangopindwa, yakaoma zvikuru kubvisa. Fungidzira kuti mvura inosuka mishonga yezvipembenene kubva mumunda ichiisa mumvura iri pedyo, uye algae inosveta makemikoro kubva mumvura, shiri duku dzinodya algae, uye zuva nezuva chepfu yacho inoungana mukati memiviri yadzo. Hove yacho inobva yadya shrimp ine chepfu, uye chepfu yacho inotowedzera kuwedzera. Somugumisiro, shiri iyi inodya hove dzakawanda, uye kuwanda kwemishonga inouraya zvipembenene kunotowedzera. Saka izvo zvakatanga semhinduro isina simba yemishonga yezvipembenene mudziva kuburikidza neketani yekudya inogona kuve yakapetwa ka80000, sekureva kweBritish Medical Association.
Nyaya imwe chete nemhuka dzepapurazi dzinodya zviyo zvakapfapfaidzwa nemishonga yezvipembenene. Muchetura unoiswa munyama yemhuka uye unotowedzera kusimba mumuviri wemunhu akadya nyama ine chepfu. Mazuvano, vanhu vakawanda vane zvisaririra zvemishonga yezvipembenene mumiviri yavo. Zvisinei, dambudziko iri rakatonyanya kune vanodya nyama nekuti nyama ine mishonga inouraya zvipembenene kakapetwa ka12 pane michero nemiriwo.
Chinyorwa cheBritish chekudzivirira zvipembenene chinoti "Zvokudya zvinobva kumhuka ndizvo zvinonyanya kusara zvemishonga yezvipembenene mumuviri." Kunyange zvazvo pasina anonyatsoziva kuti mishonga iyi inouraya zvipembenene yakawanda yakaita sei patiri, vanachiremba vakawanda, kusanganisira nhengo dzeBritish Medical Association, vari kunetseka zvikuru. Vanotyira kuti kukwira kwemishonga yezvipembenene inenge yaunganidzwa mumuviri wemunhu kunogona kukonzera gomarara uye kuderera kwekudzivirira zvirwere.
Institute of Environmental Toxicology muNew York inofungidzira kuti gore rimwe nerimwe vanhu vanopfuura miriyoni imwe pasi rose vanotambura nomuchetura wemishonga yezvipembenene uye 20000 vavo vanofa. Ongororo dzakaitwa panyama yemombe yeBritain dzakaratidza kuti mbiri kubva pamanomwe ekemikari ine diheldrin inodarika miganho yakatarwa neEuropean Union. Diheldrin inoonekwa sechinhu chine njodzi zvakanyanya, sekureva kweWorld Health Organisation, inogona kukonzera hurema hwekuzvarwa uye kenza.