No such estimates have been made by my Department.
Data on waste produced per person are collected as part of local authorities' statutory performance monitoring. However, the Government do not keep data on the waste collection policies chosen by individual authorities. It is, rightly, the responsibility of individual local authorities to decide on the most appropriate waste collection policies for their communities.
Some representations, in the form of parliamentary questions and correspondence, have been received by my Department from people concerned about possible links between the alternate weekly collection of waste and increases in flies and vermin.
There is no evidence in published studies to indicate a causal link between an increase in flies or rodents as a result of alternate week collection. The characteristics of a location will influence the rodent population and simple hygiene practices can directly prevent or reduce rat and fly populations. An independent, DEFRA-funded research study on the use of alternate weekly collection services, carried out by Enviros Consulting and Cranfield university in 2006, drew the same conclusions.
Proper design of an alternate weekly collection service should avoid any increase in nuisance to householders. The waste and resources action programme is currently updating its guidance for local authorities on the design and implementation of alternate weekly collection services, in order to minimise nuisance and health risks.