Ukuvalwa kwe-COVID-19 kuKhokelele kuNciphiso lwe-PM2.5 kwi-11 kwezili-12 kwizixeko ezikhulu zaseTshayina
Ukuvalwa komsebenzi okubangelwe ngubhubhani we-COVID-19 kubangeleamanani eelori neebhasi endleleni ayanciphangama-77% kunye nama-36% ngokulandelelanayo.Amakhulu emizi-mveliso nawo avalwa ixesha elide.
Nangona uhlalutyo lubonisa ukwandaPM2.5 amanqanaba ngoFebruwari, Pha ibe ziingxeloukuba kwisithuba esisuka kuJanuwari ukuya ku-Epreli, amanqanaba e-PM2.5 ehle nge-18%.
Kusengqiqweni ukuba i-PM 2.5 iyancipha e-China ngo-Matshi, kodwa ngaba kunjalo?
Ihlalutye izixeko ezikhulu zase China ezilishumi elinambini ukubona ukuba amanqanaba abo e-PM2.5 aqhube njani ngexesha lokuvalwa.
Kwizixeko ze-12 ezihlalutyiweyo, zonke zibone ukunciphisa amanqanaba e-PM2.5 ngo-Matshi no-Aprili, xa kuthelekiswa nonyaka ngaphambili, ngaphandle kwe-Shenzhen.
I-Shenzhen ibone ukunyuka okungephi kumanqanaba e-PM2.5 ukusuka kunyaka ongaphambili nge-3%.
Izixeko ezibone ukuncipha okukhulu kumanqanaba e-PM2.5 yayiyiBeijing, iShanghai, iTianjin, neWuhan, kunye namanqanaba e-PM2.5 ehla ukuya kuma-34% eBeijing naseShanghai.
Uhlalutyo lweNyanga ngeNyanga
Ukufumana umbono ocacileyo wendlela amanqanaba e-PM2.5 aseTshayina athe atshintsha ngayo ngexesha lokuvalwa kwe-coronavirus, sinokwahlula idatha ngenyanga.
NgoMatshi 2019 vs. Matshi 2020
Ngo-Matshi, i-China yayisephantsi kakhulu, izixeko ezininzi zivaliwe kwaye izithuthi zilinganiselwe.Izixeko ezili-11 zabona ukuncitshiswa kwe-PM2.5 ngoMatshi.
Ekuphela kwesixeko esibone ukonyuka kwamanqanaba e-PM2.5 ngeli xesha yaba yi-Xi'an, amanqanaba e-PM2.5 anyuke nge-4%.
Ngokomyinge, izixeko ezili-12 'amanqanaba e-PM2.5 ehlise i-22%, eshiya i-Xi'an njengeyona nto iphambili.
Epreli 2020 vs. Epreli 2019
U-Epreli ubone lula ukuvala amanyathelo kwindawo kuzo zonke izixeko zase China, oku kuhambelana neukwanda kokusetyenziswa kombane ngo-Epreli.Idatha ye-PM2.5 ka-Aprili ihambelana nokunyuka kokusetyenziswa kombane, ebonisa amanqanaba aphezulu e-PM2.5 kwaye ipeyinta umfanekiso owahluke ngokupheleleyo ukuya kuMatshi.
Izixeko ezi-6 kwezili-12 ezihlalutyiweyo zabona ukwanda kumanqanaba e-PM2.5.Xa kuthelekiswa ne-avareji yokucutha kumanqanaba e-PM2.5 (unyaka ngonyaka) wama-22% ngoMatshi, ngo-Epreli ubone ukunyuka komndilili kumanqanaba e-PM2.5 esi-2%.
Ngo-Epreli, amanqanaba e-PM2.5 kaShenyang anyuke ngokumangalisayo ukusuka kwi-49 micrograms ngoMatshi ka-2019 ukuya kwi-58 micrograms ngo-Epreli ka-2020.
Ngapha koko, u-Epreli ka-2020 wayengoyena umbi ka-Epreli ukusukela ngo-Epreli ka-2015 eShenyang.
Izizathu ezinokubakho zokunyuka okumangalisayo kweShenyang kumanqanaba e-PM2.5 kunokubangelwa kukuukwanda kwezithuthi, imisinga ebandayo kunye nokuqaliswa kweefektri.
Iziphumo zeCoronavirus Lockdown kwi-PM2.5
Kucacile ukuba uMatshi - xa izithintelo zokuhamba kunye nomsebenzi zazisekhona e-China - amanqanaba ongcoliseko ehlile xa kuthelekiswa nonyaka odlulileyo.
Ucazululo olusecaleni lwamanqanaba e-PM2.5 yaseTshayina ngosuku ekupheleni kukaMatshi qhubela ekhaya kule ngongoma (amachaphaza aluhlaza amaninzi athetha umgangatho womoya ongcono).
Iseyinde indlela yokudibanaUjoliso loMgangatho woMoya we-WHO
Umyinge wamanqanaba e-PM2.5 kwiidolophu ze-12 zehla ukusuka kwi-42μg / m3 ukuya kwi-36μg / m3 xa kuthelekiswa no-2019 ukuya ku-2020. Leyo yinto ekhangayo.
Nangona kunjalo, nangona kuvaliwe,Amanqanaba ongcoliseko lomoya eTshayina ayesephezulu ngamaxesha angama-3.6 kunomda wonyaka woMbutho wezeMpilo weHlabathi we-10μg/m3.
Akukho nokuba sibe sinye kwizixeko ezili-12 ezihlalutyiweyo esasingaphantsi komlinganiselo wonyaka we-WHO.
Umgca ongezantsi: Amanqanaba e-PM2.5 yaseTshayina Ngexesha le-COVID-19 yokutshixa
Umyinge wamanqanaba e-PM2.5 kwi-12 lezixeko ezikhulu zase-China athotywe nge-12%, ngoMatshi-April, xa kuthelekiswa nonyaka ophelileyo.
Nangona kunjalo, amanqanaba e-PM2.5 ebesekwi-avareji eyi-3.6 umyinge wonyaka we-WHO.
Ngaphezu koko, uhlalutyo lwenyanga nenyanga lubonisa ukuphindaphinda kumanqanaba e-PM2.5 ngo-Epreli wama-2020.
Ixesha lokuposa: Jun-12-2020
