Figure 7
From: Particle exposure risk to a lavatory user after flushing a squat toilet
Deposition of fluorescent particles on the flushing button and lavatory door handle after flushing of the toilet: (a) on the flushing button without addition of fluorescent powder to the cistern, (b) on the flushing button after addition of fluorescent powder to the cistern, (c) on the door handle without addition of fluorescent powder to the cistern, (d) on the door handle after addition of fluorescent powder to the cistern.
