4. Results and discussion
4.1. Source, composition and generation of waste in the surveyed HCEs
The composition of medical waste depends upon different parameters, such as the size of the HCE, type of patient care provided and the waste segregation system (Tudor et al., 2005). In this study, an average 21% of waste generated by HCEs was classified as hazardous (Table 5). This is generally in line with the range found in a WHO (2001) study on the composition of medical waste, where 10–25% of waste from HCEs was found to be hazardous (Prüss et al., 1999). The overall rate of hazardous waste per bed in Dhaka (0.28 kg bed1 day1, estimated by dividing the total amount of hazardous medical waste generated by hospitals and clinics by the total number of beds) was found to be lower than that reported by Silva et al. (2005) in Brazil (0.57 kg bed1 day1). The differences are probably due to socio-economic and cultural conditions, living standard of the patients, and availability of temporary storage facilities and ways of waste categorising and segregation system.
4. Results and discussion
4.1. Source, composition and generation of waste in the surveyed HCEs
The composition of medical waste depends upon different parameters, such as the size of the HCE, type of patient care provided and the waste segregation system (Tudor et al., 2005). In this study, an average 21% of waste generated by HCEs was classified as hazardous (Table 5). This is generally in line with the range found in a WHO (2001) study on the composition of medical waste, where 10–25% of waste from HCEs was found to be hazardous (Prüss et al., 1999). The overall rate of hazardous waste per bed in Dhaka (0.28 kg bed1 day1, estimated by dividing the total amount of hazardous medical waste generated by hospitals and clinics by the total number of beds) was found to be lower than that reported by Silva et al. (2005) in Brazil (0.57 kg bed1 day1). The differences are probably due to socio-economic and cultural conditions, living standard of the patients, and availability of temporary storage facilities and ways of waste categorising and segregation system.
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