In the present study, a partial segregation procedure was observed in 25% of HCEs, but this was generally ineffective, as in these establishments the segregated wastes were subsequently mixed together as they were collected from the site of production and taken for temporary storage. It seems likely that it should be relatively straightforward to achieve complete segregation in these HCEs if some additional training were available to operatives. This mixing of hazardous materials with general waste makes the total waste infectious and represents a serious hazard to workers and the general public. This is similar to the findings of Sabour et al. (2007) who studied the mixing of infectious waste with non-haz-ardous medical waste in Jordan.