Some Environmental Quality Metrics Include: Total energy consumed during the product life cycle Renewable energy consumed during the product life cycle Power used during operation (for electrical products) Useful operating life (for discrete products) Toxic or hazardous materials used in production Total industrial waste generated during production Hazardous waste generated during production or use Air emissions and water effluents generated during production Greenhouse gases and ozone-depleting substances released over life cycle Product disassembly and recovery time (for discrete products) Percentage of recycled materials used as input to the product Percentage of recyclable materials available at end-of-life Percentage of product recovered and reused Purity of recyclable materials recovered Percentage of product disposed or incinerated Average life cycle cost incurred by the manufacturer Purchase and operating cost incurred by the customer Fraction of packaging or containers recycled Back