The threat of Aids and other serious illness and injury hangs over refuse collectors every working day, shocking figures have revealed.
Five binmen from just one local authority have required HIV and hepatitis tests after being pricked by used syringes in the last year.
Westminster Council reported 13 serious injuries caused by dangerous items in unsuitable refuse bags in the 12 months to February.
Needles and syringes are often found dangerously poking through rubbish bags, along with broken glass and other sharp objects, according to the local authority.
Bradley added: "Some people don't seem to realise how dangerous discarded objects can be.
"Broken glass, knives and tin lids can all slice through bin bags, and even through the refuse collectors' protective gloves.”
The council is telling residents to wrap sharp items in newspaper, not to put clinical waste or ashes in their bins at all, and not to overfill refuse bags.