Cleaner Technology Projects in Denmark 1996

Environmental Screening of Milk Wrapping

Miljømæssig screening af emballage til mælk
Miljørapport nr. 345, 1996, Miljøstyrelsen

During the past 6 months the debate on milk carton wrapping has become fiercer. In Denmark there are two different types of wrapping: Laminated gable-top cartons, and plastic cans made of HDPE (High Density Polyethylene). The aim of this project is to describe the environmental impacts of each of these two types.

The environmental evaluation is done on the screening-level, which means it is based on already existing literature data. Specific data from Danish producers has not been collected, which means that the screening does not cover all relevant Danish conditions.

The examination/ evaluation provides insight into:
The type of environmental impact for each system
The size of particular impacts in each system
Areas where knowledge about the two systems is lacking
A preliminary indication of pros and cons of each wrapping system
Results from relevant research on milk wrappings from Denmark’s neighbour countries.

The screening cannot be used to evaluate which system is most environmentally sound, but does give an indication of the pros and cons of each system and points at the most important environmental conditions.

The environmental evaluation consists of:
A description of aim and system limitation
A summary of resources, emissions and waste
An environmental evaluation where the results from the summary are recalculated to resource consumption and environmental effects (greenhouse effect, acidification, toxic effects etc.)

The final waste deposit is used as an indicator of the environmental effects the deposit of waste can cause. (E.g. ground water pollution)

The environmental effects are presented as potential environmental effects. The actual environmental impact is dependent on the circumstances. In the environmental evaluation the potential environmental effects are valued as:
Greenhouse effect
Ozone layer breakdown
Acidification (Acid rain)
Nutrient salt burden
Photochemical ozone creation
Human toxicity via air
Waste volume
Dangerous waste
Radioactive waste

Author/ institution

Marianne Suhr Wesnæs, Institute for Product Development

ISSN no. 0105-3094
ISBN no. 87-7810-674-5