Proper waste sorting increases the recovery and reuse of materials and can reduce waste management costs, as the treatment of mixed waste is more expensive than that of separately sorted waste fractions.
According to the HSY study conducted in 2024, approximately 70% of the mixed waste generated by households in the Helsinki metropolitan area consisted of materials that could have been sorted into separate collection streams. The impact on the housing costs of an individual housing company depends on the amount of waste it generates and the billing principles applied.
