title: Emission inventory for PFOS in China: review of past methodologies and suggestions.
abstract: Perfluorooctane sulfonate (PFOS) is a persistent, bioaccumulative, and toxic chemical that has the potential for long-range transport in the environment. Its use in a wide variety of consumer products and industrial processes makes a detailed characterization of its emissions sources very challenging. These varied emissions sources all contribute to PFOS' existence within nearly all environmental media. Currently, China is the only country documented to still be producing PFOS, though there is no China PFOS emission inventory available. This study reviews the inventory methodologies for PFOS in other countries to suggest a China-specific methodology framework for a PFOS emission inventory. The suggested framework combines unknowns for PFOS-containing product penetration into the Chinese market with product lifecycle assumptions, centralizing these diverse sources into municipal sewage treatment plants. Releases from industrial sources can be quantified separately using another set of emission factors. Industrial sources likely to be relevant to the Chinese environment are identified.
authors: POPs Research Center, School of Environment, Tsinghua University, Beijing 100084, China.
authors: Theodore Chao
authors: TC
authors: Lim
authors: Bin
authors: B
authors: Wang
authors: Jun
authors: J
authors: Huang
authors: Shubo
authors: S
authors: Deng
authors: Gang
authors: G
authors: Yu
mesh_terms: D017738:Alkanesulfonic Acids / Q000032:analysis*; D002681:China; D004785:Environmental Pollutants / Q000032:analysis*; D005466:Fluorocarbons / Q000032:analysis*
chemical_list: D017738:Alkanesulfonic Acids; D004785:Environmental Pollutants; D005466:Fluorocarbons; C076994:perfluorooctane sulfonic acid