<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.watu tisa kati ya watu kumi ulimwenguni kote wako katika hatari ya viwango vya uchafuzi wa hewa ambavyo huzidi vile vinavyohesabiwa kuwa salama na shirika la afya duniani.  <response>: nine out of ten people worldwide as exposed to levels of air pollutants that exceed those considered as safe by the world health organization. 