At the end of the first full year of ECO Stars, a detailed fleet evaluation of two South Yorkshire scheme members showed significant reductions in the percentage of PM10 and NOx emissions. This demonstrated particularly that proactive fleet renewal can have a significant impact on reducing levels of toxic emissions within a relatively short timescale.
ECO Stars encouraged and supported these operators to make changes to their fleet composition and operational practices which in turn led to the improvements in vehicle emissions. Although it must be recognised that the improvements can not be claimed to be entirely due to ECO Stars membership.
Additional evaluation tools are in development, which will enable further quantification of the environmental and air quality benefits of the scheme.