5Avissar R. Potential effects of vegetation on the urban thermal environment. Atmosph. Environ. , 1996, 30(3):437-448.
6Farmer A M. The effects of dust on vegetation-a review, Environ. Pollut, ,1993, 79:63-75.
7Bacic T, Popovic Z. Preliminary report on epicuticular wax surface condition on stomata of Abies alba Mill. needles from Risnjak National Park in Croatia. Aeta Bio Cracoviensia Series Bot,1998, 40:25-31.
8Perey K E, McPuattie C J, Rebbeck J A. Effects of air poilutants on epicuticular wax chemical composition. In:“air pollutants and the leaf cuticle”, Edited by Percy K E, Cape J N, Jagels R, Simpson C J. Berlin: Springer-Verlag. Series G: Ecological Sciences, 1994, 36:67-79.
9Cape J N. Effects of air pollution on the chemistry of surface waxes of Scots pine. Water, Air and Soil Pollut. ,1986, 31:393-399.
10Department of Health (DoH). Committee on the Medical Effects of Air Pollutants: Asthma and outdoor Air Pollutants. HMSO,London, 1995.