Mapping heavy metal (Cu, Zn, and Pb) pollution and ecological risk assessment, in the surroundings of Gabes cement plant-Tunisia.

The pollution and contamination assessment of three heavy metals (Cu, Pb, and Zn) in the topsoil, and common plants (, , , , , and ) were carried out at different distances from a cement plant. This evaluation was based on four evaluation methods: Bioconcentration factor, Contamination factor, Geoaccumulation Index and Potential ecological risk factor. The chlorophylls a and b contents were also analyzed.