Beijing Guta (China)
Munguva dzichangopfuura kune nyika dzinoverengeka dzine maguta anofema mweya wakasviba. Barcelona kana Madrid mamwe acho, asi nyaya yeChina inonyanya kutyisa: maererano neWorld Health Organisation (WMO), gore rega rega vanhu vanosvika mamirioni 1,6 vanofa nezvikonzero zvine chekuita nekusvibisa.
Sezvineiwo, mhando yemweya muchikamu chino chenyika inoonekwa neguruva kubva mugwenga reGobi, sezvakaziviswa nechikwata chevatsvagiri kubva kuPacific Northwest National Laboratory (PNNL, yezita racho muchiRungu) uye Scripps Institution of Oceanography paYunivhesiti yeCalifornia muSan Diego.
Zvake kudzidza, iyo yakaburitswa mumagazini »Zvisikwa», masayendisiti akabatanidza nhoroondo yezvakaitika uye mhando dzemakomputa. Nekuongorora mhedzisiro ivo vakakwanisa kuwana izvo kudzikiswa kweguruva rechisikigo rinotakurwa kubva mugwenga reGobi pakati nepakati kuchamhembe kweChina kunokonzera kuwedzera kwehutsi kumabvazuva kweChina.
Sezviri pachena guruva reguruva inoramba ichibatsira kubatsira kudzora kwezuva. Kana paine zvidimbu zvidiki, ivhu rinodziya kupfuura zvakajairwa uye mvura inotonhora, izvo zvinoderedza mutsauko wekupisa kwechando pakati pegungwa nenyika. Izvi zvinoita kuti mhepo ivhuvhute nesimba shoma, saka mweya unoita "kumira".
Kunyangwe uku kuri kudzikiswa kwemakiromita 0,16 paawa, shanduko iyi ine mhedzisiro huru pamamiriro ekunze uyezve nemhepo mhando kumabvazuva kweChina. KuBeijing vanga vachirwa hondo yekurwisa kusvibiswa kwemakore matatu ikozvino.
Ichi chidzidzo chinonakidza kwazvo, kwete che nyika yekumabvazuva chete, asiwo kune vese avo vanobatwa nekusvibiswa kweanthopogenic, nekuti zvinoratidza kuti zvese zvakabatana, neimwe nzira kana imwe.
Smog idambudziko rakakomba iro hurumende dzese dzinofanirwa kurikoshesa kuitira kuti vagari varambe vachifema mweya wakachena.