ABS	Acrylonitrile–butadiene–styrene
ADD	The average daily dose
AF	The dermal absorption factor
AT	Average exposure time
BW	Average body weight
C	The measured dust concentration
CF	Conversion factor
CR	Cancer risks
DA	The adherence to skin
ED	Exposure duration
EF	Exposure frequency
ET	Exposure time
HI	Hazard index
HIPS	High-impact polystyrene
HQ	Hazard quotient
OPEs	Organophosphates
PBDEs	Polybrominated diphenyl ethers
PCA	Principal component analysis
PE	Polyethylene
PEF	Particle emission factor
PMF	Positive matrix factorization
PP	Polypropylene
PUF	Polyurethane foam
PVC	Polyvinyl chloride
Ring	Ingestion rate
Rinh	Inhalation rate
RfD	Reference concentration
SA	The exposure of skin
SF	Slope factor