Nonexposed area

(Administration office)

Exposed area

(Histopathology laboratory)

TWA₈ (ppm)

TWA₈ (ppm)

Hospital A

0.088

0.215

Hospital B

0.055

0.154

Hospital C

0.088

0.239

Hospital D

0.072

0.400

Reference limit (ppm)

0.100^a

0.750^b