Phytoremediation — Prelims Strategy

Prelims Strategy

Identify what happens to the contaminant in each option. Uptake into harvested tissue supports extraction; reduced mobility with retained inventory supports stabilisation; root-zone breakdown can apply to particular organic compounds. A statement that plants biologically destroy metal elements confuses transfer or chemical-form change with destruction. Do not infer complete cleanup from vegetation growth alone.

Check site conditions before endorsing a method. Root depth, contaminant tolerance, climate and available time can limit performance. A shallow-rooted plant cannot directly treat a much deeper zone simply because the surface is green. A successful example supports feasibility under its conditions, not effectiveness for any species and pollutant combination.

Read numerical evidence as a compartment measurement. Ten units in harvested biomass establish neither the fate of the remaining inventory nor groundwater compliance. Likewise, hydraulic control concerns plume movement and does not automatically prove chemical destruction. Keep the Aberdeen sequence intact: source removal came before the 1996 planting, and the example includes continuing maintenance rather than instant completion.