I roto i te hanga matū, te hanga rongoā me te tukatuka ahumahi whānui, kei reira tētahi matū iti te āhua engari he tino maha ngā whakamahinga - te dichloromethane. He wai mārama, he mārama, kāore he kakara kaha, ā, e kiia ana he whakarewa haumaru, engari he mōrearea haumaru huna kei roto. E mōhiotia ana ko te "whakarewa ahumahi whānui", he whānui te whakamahinga o te dichloromethane i roto i ngā ahumahi maha, engari he iti noa te mōhio o te nuinga o te tangata mō ōna āhuatanga, ōna tono me ōna mōrearea pea. Ka whakaratohia e tēnei tuhinga he tirohanga whānui ki tēnei matū ahumahi noa.
Ko te Dichloromethane, me te tātai ngota CH₂Cl₂, e mōhiotia ana hoki ko te methylene chloride, he matū waro halogenated rongonui. I te pāmahana rūma, he wai mārama, kāore he tae, he kakara kakara pērā i te ether. He iti noa te pāmahana kohua, 39.8℃ anake, ā, he tino pupū ake. He iti te wairewa i roto i te wai, ka taea te whakaranu ki te nuinga o ngā whakarewa waro pērā i te etanoru me te ether. Kāore i rite ki te nuinga o ngā whakarewa waro, kāore te dichloromethane e mura me te whānuitanga pahūtanga whaiti, he nui ake te haumaru i ngā whakarewa mura pērā i te ether me te petroleum ether. Koinei te take matua i whakakapi ai i ngā whakarewa mura i roto i ngā tono whānui. I taua wā, he pumau ōna āhuatanga matū, ā, kāore e pirau i te pāmahana rūma. Ka tauhohe noa i raro i te pānga o te mārama, te pāmahana teitei, te pa atu rānei ki ngā konganuku alkali, ā, he ngāwari te rokiroki me te whakamahinga.
Nā te kaha whakarewa pai rawa atu me ōna āhuatanga ā-tinana me te matū pumau, he whānuitia ngā whakamahinga o te dichloromethane. I roto i te umanga rongoā, he whakarewa tango matua mō te hanga paturopi, huaora me ētahi atu rongoā, ka taea te wehewehe me te pure tika i ngā kai hohe hei whakarite i te parakore o te rongoā. I roto i te umanga matū me ngā rauemi, he mea whakamahi noa mō te whakarewa me te tukatuka i ngā kapia, ngā kirihou me ngā rapa, ā, he kaihoko pahuka mō te pahuka polyurethane, hei tautoko i te hanga rauemi whakamahana māmā. Hei tāpiri, he kaihoko horoi i roto i te umanga hikohiko hei tango pai i ngā paru hinu me ngā poke i runga i ngā wāhanga hikohiko tino tika. I roto i te oranga o ia rā, ka kitea i roto i ngā tango peita, i ngā rehu aerosol me ngā horoi hiako, ka waiho hei rauemi mata taketake e hiahiatia ana mō te hanga ahumahi.
Ahakoa te whānui o ōna whakamahinga, ehara te dichloromethane i te mea kino, ā, kāore e taea te wareware i ōna tūponotanga hauora. He iti noa ngā pānga whakangote me ngā pānga whakapataritari, ā, ko te nuinga o te wā ka pāngia te tinana tangata e te manawa manawa me te pa ki te kiri. Mēnā ka roa te wā e pāngia ana e ngā kukū iti, ka pāngia pea te upoko, te whanoke, te ngenge, te whakapairuaki me ētahi atu āhuatanga kore e pai, ka whakapataritari i ngā kiriuhi kanohi, ihu me te manawa, ā, ka maroke, ka mamae hoki ngā korokoro, ka maremare, ka maroke hoki te kiri e kiri ana. Mēnā ka roa te wā e pāngia ana e ngā kukū tiketike o te dichloromethane, ka tere te aukati i te pūnaha io matua, ka hiamoe, ka pōhēhē, ā, ka pāngia pea te manawa e te pararutiki i ngā wā kino. He mea whakamataku ake, ka huri te dichloromethane hei matū paitini i roto i te tinana tangata. Mēnā ka roa te wā e pāngia ana te ate me ngā whatukuhu, ā, kua whakamātauhia he tūponotanga ka puta he mate pukupuku, ka pāngia tonutia ngā whekau tangata.
Haunga te kino ki te hauora o te tangata, he tūponotanga anō hoki ki te taiao te dichloromethane. I muri i te mimiti ki te āhuarangi, he uaua ki te pirau ā-taiao, ā, ko tōna nui rawa o te kohi ka whakanui ake i te parahanga o te hau. Ka kino te taiao taiao ki te tukunga matapōkere ki te wai me te oneone, ā, ka whakararu i te oranga o ngā kararehe me ngā tipu. Heoi anō, ka waikura i ngā hua kirihou me ngā hua rapa noa, nō reira me whakamahi i ngā ipu whakarewa motuhake mō te rokiroki me te kawe hei ārai i te turuturu i puta mai i te kino o ngā rauemi.
Ko te tiaki paerewa te mea nui hei karo i ngā tūponotanga o ia rā, o ia rā, o ia ahumahi hoki. Me whakahaere ngā mahi ahumahi i roto i ngā taiao kati me te hauhautanga ā-rohe hei whakaiti i te kukū o te hau o te matū. Me whakamahi ngā kopare hau i roto i ngā taiao kukū rawa, ā, me whai taputapu manawa motuhake mō te whakaora ohorere. Me mau ngā kaiwhakahaere i ngā kākahu mahi ā-kore e uru ki roto, i ngā karapu tiaki me ngā mōhiti tiaki, ā, kāore e whakaaetia te kai, te inu me te momi hikareti i te wāhi mahi. Mēnā ka pā ki te kiri, horoia tonutia ki te wai ma; rapua he maimoatanga hauora tonu mēnā ka uru te wai ki ngā kanohi, ka nui rānei te manawa. Kāore e hiahiatia kia mataku te marea whānui. Kei roto i ngā hua whai mana noa ngā taumata dichloromethane e rite ana, ā, he haumaru mō te whakamahinga noa, me karo noa i te otinga rakau ahumahi.
Hei whakamutunga, he hoari mata rua te dichloromethane i roto i te umanga. Nā ōna āhuatanga pumau me te whai hua, kua waiho hei rauemi mata ahumahi nui, engari he tūponotanga haumaru anō hoki kei roto. Mā te mārama ki ōna āhuatanga me ōna mōrearea me te whai i ngā whakaritenga whakamahinga ka taea te whakanui ake i tōna uara ahumahi me te whakaiti i ngā kino pea. Ko te aro atu ki ngā painga me ngā ngoikoretanga o ngā matū matū me te whakamahi pūtaiao i aua mea te kaupapa matua o te whanaketanga haumaru o te umanga matū hou.
Wā tuku: Hurae-31-2026