Dhaka, Dhaka, Bangladesh. 2nd June, 2016. Jun 02, 2016 Dhaka, Bangladesh ""“ Worker work at a ship propeller making factory in sadarghat dockyard. The laborers work in the dockyard without proper safety measures and unsafe conditions. Mostly the Local Ships are built and repair in this place. Ship repair, Sewage from the city, oil spills from boats and chemicals from industry have all led to pollution in the Burigonga River.