In this work, the concentrations of the potentially toxic elements in stream sediments in SE Nigeria were assessed for pollution monitoring in mining, quarrying, and farming areas. The levels of iron, molybdenum, vanadium, copper, lead, zinc, nickel, cobalt, manganese, chromium, barium, and beryllium were determined. The concentrations of the elements were in the order of Fe > Ba > Mn > Cr > Zn...

The analysis of food products or water supplies for toxic or potentially toxic elements, e.g., heavy metals, is the central problem addressed in this report. An evaluation of this problem in terms of the capabilities and limitations of applicable analytical techniques is the primary thrust of this report. Thus, recommendations regarding the selection of the best analytical methods and technique...

A question that frequently arises in connection with elements regarded necessary for plant growth is whether or not a particular element is an essential plant food or merely a stimulating substance. Is its role that of a catalyzer, or is it actually incorporated into the tissues as an integral part of the plant? These questions are more applicable to such elements as manganese, copper, zinc and...

• To describe the process of setting Guideline Values for inorganic parameters and describe the narrow divide between toxic and essential elements. • To describe some basic physico-chemical characteristics of water. • To provide some examples of inorganic chemicals to illustrate the uses of GVs for inorganics and highlight priority substances. • To describe the basis of monitoring of physical a...