Emission Inventory for PFOS in China: Review of Past Methodologies and Suggestions

Table 1

Global usage amounts of PFOS-related substances in diverse settings and per use area.

Main category	Setting	Applications	Global usage amount (2000)^a
Surface treatments	Industrial	Textile mills, leather tanneries, finishers, fiber producers, carpet manufacturers	2,160 metric tons
	General public or professional applicators after market treatment	Apparel and leather, upholstery, carpet, automobile interiors
Paper protection	Paper mills	Food contact applications (plates, food containers, bags, and wraps), nonfood contact applications (folding cartons, containers, carbonless forms, masking papers)	1,490 metric tons
Performance chemicals	Industrial, commercial, and consumer applications	Fire-fighting foams	151 metric tons
		Mining and oil well surfactants, acid mist suppressants for metal plating, electronic etching baths, photolithography, electronic chemicals, hydraulic fluid additives, alkaline cleaners, floor polishes, photographic film, denture cleaners, shampoos, chemical intermediates, coating additives, carpet spot cleaners, insecticide in bait stations	680 metric tons

^aGlobal usage amounts from 3M company estimate [5].