Description : A woman jumps over a puddle of chemical and leather waste. Along with other women and children, she makes glue from waste leather pieces. The tanneries maintain minimum environmental standards and practices. The acid based chemicals used for processing the hides are released directly into the Buriganga river. Like many other industries unconcerned about the environmental factors, tanneries also cause serious damage to the environment. Hazaribagh, Dhaka?s biggest leather processing zone, is right in the middle of one of the most densely populated residential areas. Bangladesh.