The quantities of cadmium, lead, mercury and arsenic entering the U.K. environment from human activities

Screening of new sorbent materials for cadmium removal from aqueous solutions

“…Cadmium has been well recognized for its negative effect on the environment where it accumulates readily in living systems. Adverse health effects due to cadmium are well documented and it has been reported to cause renal disturbances, lung insufficiency, bone lesions, cancer and hypertension in humans (Hutton & Symon [4], Nriagu [5]). Current technologies for cadmium removal from wastewater such as: precipitation, ion exchange and adsorption lack a sufficiently high affinity and selectivity to reduce residual cadmium to the levels dictated by ever more stringent government regulations (Singh et al [6], Yin & Blanch [7], Sadowski et al [8]).…”

Determination of Heavy Metals in Fish Tissues, Water and Sediment from the Onitsha Segment of the River Niger Anambra State Nigeria

“…Heavy metal pollution results from progress in industries, urbanization, as well as commercial activities. Sources of environmental heavy metals include emissions from industry, waste incinerators, dumpsites, purification of metals, electronics, cosmetics and various other sources [4]. These metals find their way into water bodies either through direct disposal into water, emission into the water bodies, tidal current flood, or via water flow processes [5].…”

Heavy metals investigation in bovine tissues in Brazil

“…Thus, it is possible that these sources of anthropogenic contamination also exert their influence in Brazil. It is estimated that the European Union add about 300t/year of cadmium to their soil (Huton & Symon, 1986), and that the usage of phosphate rocks in the Western United States resulted in the addition of 100g/ ha/year of cadmium to the soils (Mulla et al, 1980) …”