<P> Three sets of CLEA SGVs have been produced for three different land uses, namely </P> <Ul> <Li> residential (with and without plant uptake) </Li> <Li> allotments </Li> <Li> commercial / industrial </Li> </Ul> <Li> residential (with and without plant uptake) </Li> <Li> commercial / industrial </Li>

What are the major sources of soil pollution