الفهرس 
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Abstract
1. INTRODUCTION.
Pollution is one of a most dangerous problem existing in Egypt with the increase in using various chemicals in many agricultural and industrial activities. Excessive use of mineral fertilizers and pesticides in agriculture resulted in serious pollutions in the environment including soils, plants and water. Heavy metal pollution, particularly lead is a very important aspect of the pollution problem. Although lead is not an essential element for plant growth, it gets easily absorbed and accumulated in different plant parts. Contamination of soils by heavy metals is widespread as a result of human activities in agriculture and industry. Water, mud and soil can get contaminated with lead released from the breakdown of lead-based paint on buildings and park tools. Soils near roads may contain high contents of lead levels from exhaust fumes of cars and other vehicles particularly those using unleaded fuels (Gupta et al., 2009).
Lead pollution of soil may originate fro