The textbook focuses on the sequential extraction technique as a tool for the impact assessment of dumpsites to its immediate environment.Heavy metals bioaccumulation on the residents' tissues (blood, hair, urine, nails) and other environmental samples (hand-dug well waters, chickens fed with the waste dumps, dust particulate, and gaseous pollutants) were investigated. Some of the health effects associated with these metals exposure include; asthma, typhoid fever, cholera, kidney impairment, cancer, effect of mental development to infants, toxicity to the central and peripheral nervous system...