Metro Manila, Philippines is the seat of the country’s urbanization. Pioneering studies of the author in the previously mentioned area for the past few years, showed that the soil, plant leaves, rain water, air and water in general are contaminated with lead. Human activities highly contribute to heavy metal presence in the environment. Lead is a principal environmental contaminant since it can be distributed in different
components of the earth. At extremely elevated concentration, this metal, poses a threat to living organisms.