rob reynolds, al jazeera doca. >> joining us from the bangladesh doca is phillip and director of the and human development and thank you for talking to us. terrible conditions outside the tannery and tell us about the health hazards for people who live around these areas are facing. >> the tannery is the most polluted in the industry and we have before that it's the most polluted industry in the world and i mean the people who work at the tannery are factory workers and people who live in the tannery areas are exports to syria and have conditions in that area. i mean in the tannery industry there are chemicals used in the factories and one of them, the main one is the chromium that is used and the people who work there up to 12000 at any given time in the peak season are exposed to the health and hazards and the people -- this was in 1997 and then we found that the diseases that are in the tannery industry is very high while the morbid rate is 150 people in the tanning industry is more than 800 out of 1,000 people and the kind of. >> incredible figures. what are some of the regulatio

. >> reporter: there are more than 200 tannerys in this part of doca employing 30,000 people and leatherorth billions last year. >> this is a product used worldwide for luxury boots but for the workers who are making them, they are not looking over our health and safety. >> reporter: a survey done by a bangladesh environmental group find 90% of tannery workers die before the age of 50. for years the bangladesh government made promises saying they will move the tannerys out of the densely-populated slum into a modern facility but so far all the promises have gone unfulfilled. government officials did not respond to al jazeera's repeated request for an interview and despite this mohamed is for life in the tannerys. >> i have nothing so i have to do it. there is no other way. >> reporter: and the labor lowers the cost of leather goods sold in wealthy countries but a price paid in human misery. al jazeera and doca. >> it rings a crucial part of the bangladesh economy and worth $1 billion each year. the industry employees more than 16,000 workers. and leather is exported to u.s., the uk, ital

. >> we are joining from the bangladesh doca and the journal list david bergman and thank you for joinings and it has been a bit of a shock to people when the execution was revealed earlier on friday, are you expecting more violence and there was talk of more violence after friday prayers? >> well, there was violence outside some of the mosques here in the capitol city and cars being burned and supporters going on a rampage and elsewhere in bangladesh there are reports of five people being killed in the southern part of bangladesh as well as blockades being put up around the country's second biggest city and clearly they are responding in a way one did expect in quite a violent manner. but it's not clear exactly how this is going to proceed. >> calls for a nationwide strike on sunday, how big is the support for the opposition, how many people do you think may well turn out for that strike? >> well, the way strikes work in bangladesh is basically they want to close the country down and close shops and stop transport throughout the country and it's not so much about how many people will tur

. >> well, doca amarav has gone public in saying he wants to do aggie he can and is calling on his troops and allies, if you will, to do everything that they can to disrupt the sochi olympics. he has branded them as an unholy event. you have to assume he has something to do with the attack that happened in volgerad today. >> many americans will think of volgegrad as stalin grad during the old soviet union but why volgegrad? >> that's a good question. you are right. it was called stalingrad and was the scene of historic work war 2 battle. there could be any number of reasons. it is in the south of russia and is near to the caucuses region awe noel it's not the closest big city, but that's an important factor. it has to be in terms of a target slightly softer than, say, moscow. the maximum impact would be to pull off an attack like this in the russian capital but moscow is a more difficult to city to penetrate than volgegrad. here you have a combination of a city that's relatively sizeable, a big city. it's close to the caucuses and it has to be that much easier to get into than moscow. >>