sometimes they don't breatathe at allll. you can even see t tht she e or he's gone. munnick: we know from international studies that a range of about two kilometers around each power station, the soil is enriched in heavy metats thatat come out t of the coal. there's sizable pollution, and for a longng time, i k know, you know, since the e late eightiesi think k we've known that we e we equal l to what wawas in east germany y in the bad air quality on the highveld. a and there's something calllled a [indistini, which is a test you u do before you u get employment, mostly at power stations and in the mines, and locals tell us that they regularly fail the [indistinct] test because they've grown up in a very polluted area. as they've grown up, , they're ununfit for work. [b[birds chirprping] [tau coughs] munnicick: this pollution wawas particulate tter, primimary explanations of all the respiratory problelems that we e on thehe highveld--particulalate matter 2 2.5, small l enough tot very d deep into your lungs.s. [overlapping chatttter] rachel mokgtsana: 30% of the pat