just as sisi khampepe talking to witness in south africa.sed often to be 5hrouded in thick 5mog for days at a time. in 1952, conditions were so bad that thousands of people died in the government eventually had to act. scientist brian commons wa5 government eventually had to act. scientist brian commons was called in to study the killer smog. ordinary fog doe5 in to study the killer smog. ordinary fog does little harm. smog, a mixture of smoke and four, has become one of the greatest mass murderer5 of modern times. become one of the greatest mass murderers of modern times. the smoke began on a friday and it was black. it was described as a pea soup because it was a little yellow wish. you could smell it. it tasted a little acidic. and it caused absolute havoc. the levels of pollution were horrendous. you could not see your feet. i remember on one particular occasion i wanted to ci’oss particular occasion i wanted to cross a wide road and i shuffled across and after about ten minutes i did not know where i was and, finally, i ended up on the