Non-road fuel consumption and pollutant emissions ... - BAFU - CH

Non-road fuel consumption and pollutant emissions FOEN 2008 76
8.2.2 Emissions
Pollutant emissions are depicted in Figure 39 (top) by machine type. Here we can see
that forklifts account for higher PM emissions than for nitrogen oxide emissions. There
are two reasons for this: the average age of forklifts is relatively high (9 years, compared
with 7 years for snow groomers), and the engines in forklifts are relatively small,
which means that specific PM emissions are correspondingly high, since by contrast
with specific nitrogen oxide emissions, PM emissions are significantly higher from
small engines than from large engines. In addition, it was assumed in the calculation
model that around 30% of larger machines were already retrofitted with particle filter
systems in 2005 (here the proportion is assumed on the basis of the figures for construction
machinery. The only exception concerns snow groomers, which were not
retrofitted).
Development of pollutant emissions from 1980 to 2020
The development of pollutant emissions from industrial machinery is similar to that for
construction machinery (Fig. 39 and Fig. 37 bottom), though the reduction in the next
few years is less pronounced, since the proportion of smaller machines (< 75 kW),
which are subject to less stringent exhaust regulations, is greater.