From the dataset abstract

A household mixed waste composition study in the Helsinki metropolitan area is carried out every three years.

The results are presented in averages and by property group as well %-share and kg/property/resident. The composition of mixed waste is broken down into 11 categories and subcategories thereof. The categories are:

• bio waste
• paper
• carton
• wood
• plastics
• glass
• metal
• textiles
• electrical appliances and batteries
• hazardous chemicals
• mixed waste

2024

In 2024, the composition of household mixed waste was studied during a one-week monitoring period in September. Households were divided into research groups based on the number of apartments in the property. The research groups were: properties with 1 apartment (divided into two research groups: those that compost and those that are part of the bio-waste collection), properties with 2-4 apartments, properties with 5-19 apartments, and properties with more than 19 apartments (divided into two research groups: rental properties and owner-occupied properties).

Link to the study:

• Composition of Mixed Waste in the Helsinki Metropolitan Area in 2024

2018 and 2021

Household mixed waste composition study in the Helsinki metropolitan area 2021

Household mixed waste composition study in the Helsinki metropolitan area 2018

Source: Sekajätteen koostumus pääkaupunkiseudulla