Abstract
The purpose of this study was threefold: to investigate the types and amounts of medical waste from various hospitals in Taiwan; to analyze residues from incinerated medical waste for heavy metal content; and to measure the amount of infectious and general medical waste per bed per day and determine the ratio of infectious to general medical waste. Information was first obtained on the amounts of medical waste produced per bed per day and on waste handling and treatment. Next, residue samples were taken from incinerators and analyzed for heavy metal content. Third, daily records concerning waste content and weight from one hospital were kept over the period of one year. Chromium (Cr) and zinc (Zn) concentrations were significantly higher in medical waste than in general waste. Medical waste fluctuated significantly over the one-year period. Records showed that wastes containing dialysis material and wood/cotton materials were found to have the highest weight and wastes containing human organs had the lowest weight. Results of the present study underscore the need for all hospitals to effectively separate waste for proper treatment and disposal, particularly waste that produces residues which may be hazardous to the environment. In addition, hospitals also need to recycle or reuse certain materials in order to reduce waste production.
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