The supporting information has been reduced to a reasonable
minimum, so as to complement the indicators. General background
information comprises the Gross National Income (GNI) per capita
for the country and the corresponding income category (World
Bank, 2012); the population; and the total municipal solid waste
(MSW) generation. Key waste-related data comprise the calculated
MSW generation per capita per year and six components of MSW
composition which both vary most between cities (Wilson et al.,
2012) and are important for resource recovery and/or technology
selection. The six items are four basic composition categories:
organic (food and green waste) fraction; paper and cardboard;
plastics; and metals; plus two over-arching physical parameters:
waste density, and moisture content