Problem. The manufacture of bleached (white) paper generally requires the use of chlorine-containing chemicals to remove residual lignin from the pulp in the final stages of the delignification process. The use of these chlorine-containing chemicals in the bleaching process creates organochlorine waste products (often called absorbable organic halides or AOXs), including dioxine and furans. These substances tend to bioaccumulate and biomagnify and are suspected of causing various health problems among humans, including cancer.