Makullin COVID-19 ya haifar da raguwar PM2.5 a cikin 11 cikin 12 na manyan biranen kasar Sin
Kullewar da annobar COVID-19 ta haifar ya ga cewayawan manyan motoci da bas-bas a kan hanya sun raguda 77% da 36%, bi da bi.An kuma rufe daruruwan masana'antu na wani lokaci mai tsawo.
Duk da bincike yana nuna karuwa aPM2.5 a lokacin Fabrairu, can an samu rahotannicewa a cikin lokacin daga Janairu zuwa Afrilu, matakan PM2.5 sun ragu da 18%.
Yana da ma'ana cewa PM 2.5 yana raguwa a China a cikin Maris, amma haka lamarin yake?
Ya bincika goma sha biyu daga cikin manyan biranen kasar Sin don ganin yadda matakan PM2.5 suka kasance yayin kulle-kullen.
Daga cikin biranen 12 da aka bincika, dukkansu sun sami raguwar matakan PM2.5 na Maris da Afrilu, idan aka kwatanta da shekara guda da ta gabata, ban da Shenzhen.
Shenzhen ya ga ƙaramin haɓaka a matakan PM2.5 daga shekarar da ta gabata na 3%.
Biranen da suka sami raguwa mafi girma a matakan PM2.5 sune Beijing, Shanghai, Tianjin, da Wuhan, tare da matakan PM2.5 sun ragu zuwa 34% na Beijing da Shanghai.
Binciken Wata-wata
Don samun ƙarin haske game da yadda matakan PM2.5 na China ke canzawa yayin kullewar coronavirus, za mu iya raba bayanan wata-wata.
Maris 2019 vs Maris 2020
A cikin Maris, kasar Sin har yanzu tana cikin kulle-kulle, tare da rufe birane da yawa kuma an iyakance zirga-zirga.Biranen 11 sun ga raguwa a cikin PM2.5 a cikin Maris.
Birnin Xi'an daya tilo da aka samu karuwar matakan PM2.5 a wannan lokacin shi ne, matakin PM2.5 ya karu da kashi 4%.
A matsakaita, matakan PM2.5 na biranen 12 sun ragu da kashi 22 cikin 100, wanda ya bar Xi'an a matsayin babbar ma'ana.
Afrilu 2020 vs Afrilu 2019
Afrilu ya sami sauƙi na matakan kullewa a cikin yawancin biranen China, wannan ya yi daidai da wanikaruwar amfani da wutar lantarki ga Afrilu.Bayanan PM2.5 na Afrilu yana da alaƙa da ƙarin amfani da wutar lantarki, yana nuna mafi girman matakan PM2.5 kuma ya zana hoto daban-daban har zuwa Maris.
6 daga cikin biranen 12 da aka bincika sun sami karuwa a matakan PM2.5.Idan aka kwatanta da matsakaicin raguwa a matakan PM2.5 (shekara a shekara) na 22% a cikin Maris, Afrilu ya sami matsakaicin karuwa a matakan PM2.5 na 2%.
A cikin Afrilu, matakan PM2.5 na Shenyang sun ƙaru sosai daga microgram 49 a cikin Maris 2019 zuwa 58 microgram a cikin Afrilu 2020.
A zahiri, Afrilu 2020 ita ce Afrilu mafi muni tun Afrilu 2015 ga Shenyang.
Dalilai masu yuwuwa na girman girman Shenyang a matakan PM2.5 na iya kasancewa saboda ankaruwa a zirga-zirga, igiyoyin sanyi da sake farawa masana'antu.
Tasirin kullewar Coronavirus akan PM2.5
A bayyane yake cewa Maris - lokacin da takunkumi kan motsi da aiki har yanzu ke kan aiki a China - matakan gurɓatawa sun ragu idan aka kwatanta da shekarar da ta gabata.
Bincika gefe da gefe na matakan PM2.5 na kasar Sin na yini ɗaya a ƙarshen Maris yana fitar da gida wannan batu (ƙarin ɗigon kore yana nufin mafi kyawun iska).
Har Yanzu Tsawon HaɗuwaManufar ingancin iska ta WHO
Matsakaicin matakan PM2.5 a cikin biranen 12 sun ragu daga 42μg/m3 zuwa 36μg/m3 lokacin da aka kwatanta 2019 zuwa 2020. Wannan abu ne mai ban sha'awa.
Duk da haka, duk da kulle-kullen.Matsayin gurɓataccen iska na China har yanzu ya ninka sau 3.6 fiye da adadin Hukumar Lafiya ta Duniya na shekara-shekara na 10μg/m3.
Babu ko ɗaya daga cikin biranen 12 da aka bincika da ke ƙasa da iyakar WHO na shekara.
Layin ƙasa: Matakan PM2.5 na China yayin kulle-kullen COVID-19
Matsakaicin matakin PM2.5 na manyan biranen kasar Sin 12 ya ragu da kashi 12%, a watan Maris-Afrilu, idan aka kwatanta da na bara.
Koyaya, matakan PM2.5 har yanzu sun kasance akan matsakaita sau 3.6 na iyakacin shekara-shekara na WHO.
Menene ƙari, bincike na wata-wata yana nuna sake komawa cikin matakan PM2.5 na Afrilu 2020.
Lokacin aikawa: Juni-12-2020
