E ai ki ngā raraunga hou a te tari taake, i whakaatuhia e ngā mahi tauhokohoko a Haina mō te dichloromethane (DCM) me te trichloromethane (TCM) i te Hui-tanguru 2025 me ngā marama tuatahi e rua o te tau ngā ia rerekētanga, e whakaatu ana i te nekehanga o te tono o te ao me ngā kaha whakaputa o roto.
Dichloromethane: Ko ngā Kaweake e Ārahi ana i te Tipu
I te marama o Pēpuere 2025, i kawemai a Haina i te 9.3 tana o te dichloromethane, he pikinga whakamiharo tēnei mā te 194.2% i ia tau. Heoi, ko te tapeke o ngā kawemai mō Hānuere-Pēpuere 2025 he 24.0 tana, he hekenga iho mā te 64.3% i whakaritea ki te wā kotahi o te tau 2024.
He rerekē te kōrero mō ngā kaweake. I kitea i roto i a Pēpuere te 16,793.1 tana o te DCM i kaweakehia, he pikinga 74.9% i ia tau, ko ngā kaweake katoa mō ngā marama tuatahi e rua i eke ki te 31,716.3 tana, he pikinga 34.0%. I puta ko Kōrea ki te Tonga te wāhi matua i te marama o Pēpuere, me te kawemai i te 3,131.9 tana (18.6% o ngā kaweake katoa), ā, i muri mai ko Turkey (1,675.9 tana, 10.0%) me Indonesia (1,658.3 tana, 9.9%). Mō Hanuere-Pēpuere, i mau tonu a Kōrea ki te Tonga i tōna arataki me te 3,191.9 tana (10.1%), ko Nigeria (2,672.7 tana, 8.4%) me Indonesia (2,642.3 tana, 8.3%) i piki ake i ngā rarangi.
Ko te pikinga tere o ngā kaweake DCM e whakaatu ana i te whānui haere o ngā kaha whakaputa a Haina me te utu whakataetae i te mākete o te ao, inā koa mō ngā whakarewa ahumahi me ngā tono rongoā. E kī ana ngā kaitātari ko te pikinga o te tono mai i ngā ōhanga hou me ngā whakatikatika mekameka tuku i ngā mākete matua o Āhia te take o te tipu.
Trichloromethane: Ko te Hekenga o ngā Kaweake e Whakaatu ana i ngā Wero o te Mākete
I ngoikore haere te hokohoko trichloromethane. I te marama o Pēpuere 2025, he iti noa te kawemai a Haina i te 0.004 tana o te TCM, ā, i heke te kaweake mā te 62.3% i ia tau ki te 40.0 tana. I rite te kawemai katoa o Hānuere-Pēpuere ki tēnei ia, i heke mā te 100.0% ki te 0.004 tana, me te hekenga o ngā kaweake mā te 33.8% ki te 340.9 tana.
Ko Kōrea ki te Tonga te rangatira o ngā kaweake TCM, i mimiti i te 100.0% o ngā tuku i te marama o Pēpuere (40.0 tana) me te 81.0% (276.1 tana) i ngā marama tuatahi e rua. Ko Argentina me Brazil i ia marama e 7.0% (24.0 tana) o te katoa i waenga i a Hānuere me Pēpuere.
Ko te hekenga o ngā kaweake TCM e tohu ana i te whakahekenga o te tono o te ao, e pā ana pea ki ngā ture taiao e whakamutu ana i te whakamahinga o ngā pouaka whakamātao me ngā mana whakahaere pakari ake i ngā tono e pā ana ki te chlorofluorocarbon (CFC). E kī ana ngā kaimātakitaki ahumahi ko te arotahi a Haina ki ngā huarahi kē atu kaiao ka ārai pea i te hanga me te hokohoko TCM i roto i te wā waenga.
Ngā Pānga o te Mākete
Ko ngā ara rerekē o te DCM me te TCM e whakaatu ana i ngā au whānui ake i roto i te rāngai matū. Ahakoa e whai hua ana te DCM i tōna whānuitanga ki te hanga me ngā whakarewa, ka tūtaki te TCM ki ngā arai nā te pēhanga o te oranga tonutanga. Tērā pea ka kaha ake te tūranga o Haina hei kaihoko nui o te DCM, engari tera pea ka heke tonu ngā tono motuhake a te TCM mēnā kāore e puta he whakamahinga ahumahi hou.
E matapaetia ana ka nui haere te whakawhirinaki o ngā kaihoko o te ao, inā koa i Āhia me Āwherika, ki ngā taonga Hainamana DCM, engari ko ngā mākete TCM ka huri pea ki ngā kaihanga matū motuhake, ki ngā rohe rānei he iti ake te kaha o ngā kaupapa here taiao.
Pūtake Raraunga: Te Tari Taake o Haina, Hui-tanguru 2025
Wā tuku: 17 Paenga-whāwhā 2025