The introduction of special disposal bins for needles used by heroin addicts has seen a 90% reduction in drug paraphernalia in Cork city's only public toilets.
A decision to install the sharp disposal bins was taken when cleaners reported an increase in needles being dumped on the floor of the three toilets on the Grand Parade.
Needles were also dumped in sinks, wastepaper baskets and other public areas of the facility.
A spokesman for Cork City Council said they were concerned about the risk they posed to the health and safety of the public and the toilet cleaners.
Syringes have also been found on streets and near residential areas by council staff.
Gardaí say there are more than 20 addicts currently injecting heroin in Cork city.