Mushure mekupedza basa, vashandi vakawana silica uye vakakumbirwa kuti vaicherechedze kuti ishandiswe mukugadzira simbi. Vashandi havana kupihwa masiki kana michina yekufema yekushandisa vachiri kuchera. Nekuda kwekuratidzwa neguruva re silica, vashandi vazhinji vakava nesilicosis, chirwere chemapapu chinokanganisa. Sekureva kwechiratidzo chiri panzvimbo, paive nevanhu 109 vakafa. Kwekunzwa kwakabvumidzwa kukongiresi kwakaisa huwandu hwevakafa pa476.
vashandi havana kupiwa masiki kana midziyo yekufema