labarai

I. "Yankin Toka" na Ma'aunin Halitta

A lokacin da aka buɗe "Dokokin Aiwatar da Takaddun Shaidar Samfurin Halitta," Mataki na 7 na Babi na 2 ya lissafa nau'ikan magungunan kashe kwari guda 59 na asalin tsirrai da ma'adanai waɗanda aka yarda a yi amfani da su a sarari. Magungunan kashe kwari kamar azadirachtin da pyrethrins an haɗa su sosai. Kodayake waɗannan abubuwan da aka samo daga tsire-tsire na halitta an ayyana su a matsayin "ƙarancin guba," fesawa mai yawa na iya haifar da ragowar abubuwa. Babban abin damuwa shine cewa ƙa'idodin takaddun shaida sun saita lokacin tsarkake ƙasa na watanni 36, amma har yanzu ana iya gano ƙwayoyin glyphosate daga zagayowar noma na baya a cikin ruwan ƙasa a wasu sansanonin a Arewacin Filayen China.

Lamura nachlorpyrifosRagowar da aka samu a cikin rahotannin gwaji suna aiki a matsayin gargaɗi. Wani tushe mai takardar shaida, kusa da gonakin gargajiya, ya sha wahala daga gurɓatar magungunan kashe ƙwari a lokacin damina, wanda ya haifar da gano 0.02 mg/kg na ragowar organophosphorus a cikin samfuran alayyafo. Wannan "gurɓataccen abu" yana fallasa rashin isasshen tsarin takardar shaida na yanzu wajen sa ido kan yanayin noma, yana wargaza tsarkin aikin gona na halitta.

II. Gaskiya Ta Bayyana a Dakunan Gwaje-gwaje

Lokacin amfani da na'urar auna yawan gas chromatography-mass spectrometry, masu fasaha sun saita iyakar gano samfuran a matakin 0.001 mg/kg. Bayanai sun nuna cewa kashi 90% na samfuran da suka dace suna da matakan ragowar 1/50 zuwa 1/100 kawai na waɗanda ke cikin kayan lambu na gargajiya, daidai da zubar da digo biyu na tawada a cikin wurin ninkaya na yau da kullun. Duk da haka, ci gaba a cikin fasahar gano zamani ya ba da damar kama ƙwayoyin halitta a matakin ɗaya cikin biliyan ɗaya, wanda hakan ya sa "sifili ya rage" aiki ba zai yiwu ba.

Rikicewar sarƙoƙin gurɓatawa ta wuce tunanin mutum. Gurɓatar rumbun ajiya saboda rashin tsaftace motocin sufuri da ba a cika yi ba ya kai kashi 42% na yawan aukuwar lamarin, yayin da gurɓatar hulɗa da aka samu sakamakon sanya su a kan ɗakunan manyan kantuna ya kai kashi 31%. Mafi muni, magungunan rigakafi da aka haɗa a cikin wasu kayan takin zamani daga ƙarshe suna shiga ƙwayoyin kayan lambu ta hanyar tattara ƙwayoyin halitta.

III. Hanya Mai Sauƙi Don Sake Gina Aminci

Da yake fuskantar rahoton gwajin, wani manomi mai gina jiki ya nuna "tsarin bin diddiginsu mai haske": Lambar QR akan kowane fakitin yana ba da damar bincika rabon cakuda Bordeaux da aka yi amfani da shi da rahotannin gwajin ƙasa na kusan kilomita uku. Wannan hanyar sanya hanyoyin samarwa a buɗe take sake gina kwarin gwiwar masu amfani.

Masana harkokin tsaron abinci sun ba da shawarar amfani da "hanyar tsarkakewa sau uku": jiƙa a cikin ruwan soda don lalata magungunan kashe ƙwayoyin cuta masu narkewar mai, ta amfani da na'urar tsaftace fuska ta ultrasonic don cire abubuwan da ke shiga saman jiki, da kuma yin blending na tsawon daƙiƙa 5 a zafin 100°C don dakatar da enzymes na halitta. Waɗannan hanyoyin za su iya kawar da kashi 97.6% na ragowar ƙwayoyin cuta, wanda hakan zai sa layin kariyar lafiya ya fi ƙarfi.

Bayanan gwajin dakin gwaje-gwaje bai kamata su zama hukunci na musanta darajar noma na halitta ba. Idan muka kwatanta 0.008 mg/kg na ragowar chlorpyrifos da 1.2 mg/kg da aka gano a cikin seleri na gargajiya, har yanzu za mu iya ganin tasirin tsarin samar da kwayoyin halitta wajen rage amfani da magungunan kashe kwari. Wataƙila tsarkin gaskiya ba ya cikin cikakken sifili, amma a ci gaba da kusantar sifili, wanda ke buƙatar masu samarwa, masu kula da muhalli, da masu amfani da su haɗa kai don haɗa hanyar sadarwa mai inganci.