On the outskirts of Dhaka, there are about 1,000 brick factories. 90% of them are considered illegal because the stacks are too low and the use of coal as a fuel. The fumes they emit are the cause of 40% of the pollution in the city of Dhaka. Next to each factory there are the villages of workers. Whole families are forced to work for 12 hours a day without any right and with a salary that allows them only to survive miserably.