8. A pressure-sensitive adhesive sheet has a high adhesiveness and an excellent terminal peeling resistance as well as exhibits extremely small diffusing amounts of formaldehyde and toluene. The pressure-sensitive adhesive sheet comprises at least a pressure-sensitive adhesive layer of a water-dispersion type acrylic pressure-sensitive adhesive containing:
a water-dispersion type acrylic polymer containing as a main component an alkyl (meth)acrylate represented by the following Formula (1):

wherein R 1 represents a hydrogen atom or a methyl group and R 2 represents an alkyl group having 2 to 14 carbon atoms, and
a tackifying resin-containing emulsion,

wherein the tackifying resin has a softening point of 120°C to 170°C, and
wherein a diffusing amount of formaldehyde is less than 3 µg/m 3 and a diffusing amount of toluene is 10 µg/g or less.