Toronto Western Hospital (TWH) Waste Audit

The goal of this observational study is to learn about the amount and types of anesthesia wastes generated for each surgical case at the Toronto Western Hospital (TWH). The main questions it aims to answer are: * The amount of anesthesia waste generated per surgical case at TWH * The amount of wastes that are inappropriately discarded * The percentage of discarded waste that can be reused or recycled * The percentage of recyclable waste that is actually recycled * The percentage of discarded waste that is appropriately sent to landfill * The financial cost of waste disposal * The impact of a staff education program on waste reduction and proper waste disposal The research team will conduct the audit by inspecting the contents of the waste bins and bags following completion of a surgery.