In this Monday, February 6, 2017 photo, a Bangladeshi worker sprays chemicals on to coloured strips of leather to dry at the highly polluted Hazaribagh tannery area in Dhaka, Bangladesh. Hazardous, heavily polluting tanneries with workers as young as 14 supplied leather to companies that make shoes and handbags for Western brands, a nonprofit group that investigates supply chains says. (Photo by A.M. Ahad/AP Photo)





In this Thursday, March 2, 2017 photo, a Bangladeshi man rides past a bicycle in front of the main entrance of the Apex tannery at the highly polluted Hazaribagh tannery area in Dhaka, Bangladesh. (Photo by A.M. Ahad/AP Photo)





In this Thursday, February 9, 2017 photo, used gloves are seen on the pile of tannery waste at the highly polluted Hazaribagh tannery area in Dhaka, Bangladesh. Pure Earth a nongovernmental organization that addresses industrial pollution put Hazaribagh on its Top 10 list of polluted places, along with Chernobyl, although similar problems of pollution and dangerous working conditions exist at tannery clusters in the Philippines and India as well. (Photo by A.M. Ahad/AP Photo)





In this Monday, February 6, 2017 photo, a tank full with chemicals, inside a factory at the highly polluted Hazaribagh tannery area is seen, in Dhaka, Bangladesh. (Photo by A.M. Ahad/AP Photo)





In this Thursday, February 9, 2017 photo, a Bangladeshi man walks across a canal with full of tannery waste which empties out into the Buriganga River at the highly polluted Hazaribagh tannery area in Dhaka, Bangladesh. (Photo by A.M. Ahad/AP Photo)





In this Monday, February 6, 2017 photo, a view of the highly polluted Hazaribagh tannery area is seen in Dhaka, Bangladesh. Pure Earth a nongovernmental organization that addresses industrial pollution put Hazaribagh on its Top 10 list of polluted places, along with Chernobyl, although similar problems of pollution and dangerous working conditions exist at tannery clusters in the Philippines and India as well. (Photo by A.M. Ahad/AP Photo)





In this February 6, 2017 photo, a Bangladeshi man works inside a tannery factory in the highly polluted Hazaribagh tannery area in Dhaka, Bangladesh. (Photo by A.M. Ahad/AP Photo)





In this Monday, February 6, 2017 photo, a Bangladeshi woman puts strips of leather to dry at a tannery in Dhaka, Bangladesh. (Photo by A.M. Ahad/AP Photo)





In this Friday, February 3, 2017 photo, workers stand in front of the Tannery Workers Union office at the highly polluted Hazaribagh tannery area in Dhaka, Bangladesh. (Photo by A.M. Ahad/AP Photo)





In this Thursday, February 9, 2017 photo, a Bangladeshi boy pulls a rickshaw loaded with strips of leather at the highly polluted Hazaribagh tannery area in Dhaka, Bangladesh. Hazardous, heavily polluting tanneries with workers as young as 14 supplied leather to companies that make shoes and handbags for Western brands, a nonprofit group that investigates supply chains says. (Photo by A.M. Ahad/AP Photo)





In this Monday, February 6, 2017 photo, a Bangladeshi worker cuts raw animal hide inside a factory at the highly polluted Hazaribagh tannery area in Dhaka, Bangladesh. (Photo by A.M. Ahad/AP Photo)





In this Monday, February 6, 2017 photo, a Bangladeshi boy processes animal hide inside a factory at the highly polluted Hazaribagh tannery area in Dhaka, Bangladesh. (Photo by A.M. Ahad/AP Photo)





In this Monday, February 6, 2017 photo, Bangladeshi people walk across a temporary bridge as smoke emits from tannery waste at the highly polluted Hazaribagh tannery area in Dhaka, Bangladesh. (Photo by A.M. Ahad/AP Photo)