In developing clean cement factory, installing electrostatic precipator in the smoke
stack performed prevention of particle pollution. Dust particles discharged. to the
atmosphere could be mitigated with a so called "green or clean" program. Both of the
mitigation techniques have been conducted by PT Semen Nusantara in Cilacap, Central
Java. Leaf of trees surrounding the factory were seen entrap dust particles. The dust
entrapped covered the surface of the leaves. On Termina/ia catapa leaves were found dust
cover of 0.4071 mglcm2 compared ~o Filicium decipiens leaves of 0.4042 mglcm2 on a
distance of 0.1 km from the factory. A distance of 2 km from the factory the dust cover of
Terminalia catapa dan Filicium decipiens leaves decreased into approximately 0.3797
mglcm2and 0.3670 mglcm2respectively. The absorption and adsorption of cement dust are
useful for human health and harmless for leaves
