Chemical Speciation and Potential Mobility of Heavy Metals in Organic Matter Amended Soil

Figure 4

Changes in mobile and immobile fractions of lead in three soils with time; SL - silt loam soil, SCL - silty clay loam soil, SC - silty clay soil, USUT- unspiked untreated, UST- unspiked treated with OM, SUT- spiked untreated with OM, ST- spiked treated with OM, MF- mobile fractions, IMF- immobile fractions.