Tech tsvina ine simbi dzinorema dzinokuvadza hutano hwevanhu uye nharaunda. Iwo mazinga evanadium anowanikwa muropa revaperekeri vemuAfrica vanosvika muCanary Islands zvakakwirira zvakakwana kuti zvive chepfu kune hutano.
Munyika yekutanga, tekinoroji inosiya kumashure matani nematani emvura inosvibisa uye haina kudzokororwa. Iyi tekinoroji ine trace mazinga eacobalt, arsenic, nickel, nezvimwe. Izvo zvinogona kudhakwa kune vanhu vavanotarisana navo. Nei maAfrica ari kusvibiswa nemarara edu ehunyanzvi?
Heavy simbi muropa
Chirevo chenguva pfupi yapfuura cheWorld Bank chinoratidza kuti chero chikoro chesekondari chekutanga-nyika chine makomputa akawanda kupfuura dzimba dzese mune rimwe guta guru muSierra Leone kana Guinea Bissau dzinogona kuunganidzwa pamwechete
Kana isu tikaongorora izvi, zvinogoneka sei kuti, kana pasina makomputa munyika idzi dzeAfrica, vanogona kuve nenzvimbo dzakakwirira dzevanadium muropa ravo? Izvi zvinopokana zvakaongororwa nevatsvakurudzi gumi kubva iyo Yunivhesiti yeLas Palmas de Gran Canaria uye iyo Insular Hospital mune chidzidzo chakaburitswa mumagazini "Kukanganiswa Kwezvakatipoteredza."
Muzvidzidzo zvakaitwa muCanaries, zvichipiwa kunetsekana kwekuitisa zvidzidzo munzvimbo dzakatangira maAfrica aya, akaongororwa ropa revapoteri mazana maviri nemakumi maviri nevashanu vanobva munyika gumi nenhatu dzemukondinendi. Ongororo dzakaitwa mukati memwedzi miviri yekusvika kwavo pazvitsuwa uye vazhinji vacho varume. Vese vanozvipira vekutsvagisa vaive pakati pemakore gumi nemashanu kusvika makumi mashanu nemashanu ekuberekwa uye mune hutano hwakanaka.
Ongororo yeLaborari yakaona kuti zvinhu zvitatu (aluminium, arsenic uye vanadium) zvaive muropa re100 muzana yezvidzidzo, zvisinei nenyika yavakabva, uye kuti zvimwe simbi, senge chromium, mercury nemutobvu, ivo vaigona kuwanikwa mune anopfuura makumi mapfumbamwe muzana ezviitiko.
Vatsvaguriri vanosimbisa kuti chinhu chiri mukukwirisa kwakanyanya kunowanikwa muropa revaya vakaongororwa yaive aruminiyamu. Iyi simbi inowanikwa mumitumbi yavo mukutarisa zvakapetwa kagumi kusvika gumi neshanu zvakapfuura pane zviri munyika dzakabudirira. Tsananguro yekusungirirwa kwakadai ndeyekuti simbi idzi dzinoshandiswa pakubika muAfrica.
Dzimwe simbi dzinorema
Imwe yesimbi inowanikwa mukukwirira kwakanyanya lead. Iyi simbi yaive padanho repamusoro zvakanyanya kupfuura izvo zvinogona kuve neEuropean, America kana Japan. Izvi zvinoenderana nazvo kushayikwa kwekudzora kwepombi dzemutobvu uye pendi dzisisashandiswe
Simbi dziri chikamu chemafoni, makomputa, mapiritsi, midziyo yemumba, nezvimwewo zvinowanikwa muropa revaAfrica. Nekudaro, iko kusunganidzwa kwesimbi idzi kwakafanana neakawanikwa muvanhu vekutanga venyika, kunze kwevanadium, iyo yakawanikwa mune yakawanda kwazvo doses.
Mubvunzo unomuka wekuti nei izvi zviumbwa zvesimbi zvakafanana muvaAfrica, apo kupinda kweaya matekinoroji mukondinendi kwakadzikira zvakanyanya kupfuura kweiyo North America, EU kana Japan.
Matekiniki emagetsi
Chikonzero chekukwirisa kwesimbi idzi muropa revaAfrica zviri pachena nekuda kwekuti 80% yetsvina yese yehunyanzvi inogadzirwa munyika yekutanga inoguma muAfrica.
Vanhu vemuAfrica vanotora mukana wezvinhu izvi kusimudzira kutengeserana kwemaoko echipiri, kazhinji kusingaperi uye kurarama kwenguva pfupi, dzimwe nguva kusimudzira macheni ekushandura, nezvimwe. Kuenderera mberi kurapwa nezvinhu izvi inokonzera kuti vasvibiswe nesimbi idzi muropa.
Nyika gumi neshanu dzakaongororwa dziri pakati pevarombo pasi rose, asi kuwanda kwesimbi idzi kwakakwira pakati pevatorwa kubva kumarudzi ane GDP yepamusoro, aine nhare zhinji pavanhu zana, nevashandisi veInternet uye, pamusoro pezvose, vane huwandu hwepamusoro hwekupinza hwechipiri. -zvigadzirwa zvemagetsi.
Sezvauri kuona, marara edu anopedzisira ave munzvimbo dzine hurombo uye anopedzisira akanganisa hutano hwevamwe vanhu.