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Waste Management & Research
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The Origins of Municipal Solid Waste: the Relations Between Residues From Packaging Materials and Food

H. Alter

U.S. Chamber of Commerce, Washington, D.C. 20062, U.S.A.

Data for the composition of municipal solid waste (MSW) from around the world are used to further examine a previously reported statistical correlation between the fraction of food residues and the fractions of paper and board, metal, glass and plastics residues in MSW. For data from many locations, these correlations are statistically significant; multiple linear regressions are computed. The fraction of food waste decreases as the fractions of waste from paper and board, metals and glass increase.

The situation in the U.S.A. is examined further for just packaging waste. Similar correlations are established for the fraction of food residues and the fractions of paper and board and plastics packaging residues for predicted compositions for 1980 to 2000. Similar correlations for the U.K. are not statistically significant. Some reasons for this are postulated.

The results of the statistical analyses predict that a strategy for decreasing the fraction of food waste in MSW is to increase the use of food packaging by some amount, especially plastics and metals, contrary to conventional wisdom.

Key Words: Food waste • paper • plastics • glass • metals • statistical correlations.

Waste Management & Research, Vol. 7, No. 1, 103-114 (1989)
DOI: 10.1177/0734242X8900700115
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