Selenium in soil, plant, and animal systems

Disposal of Industrial and Domestic Wastes: Land and Sea Alternatives

“…But the information available so far indicates that most of these elements are not likely to accumulate in crops grown on sludge treated lands to such levels (Sharma, 1983). Selenium and molybdenum--and possibly cadmium, cobalt, copper, and zinc--may be exceptions, however, since feed and food crops grown on soils receiving sludge at rates within EPA standards may contain levels of Mo, Se, and possibly Cd sufficiently high to arouse concern.…”

“…Selenium and molybdenum--and possibly cadmium, cobalt, copper, and zinc--may be exceptions, however, since feed and food crops grown on soils receiving sludge at rates within EPA standards may contain levels of Mo, Se, and possibly Cd sufficiently high to arouse concern. It has been shown, for example, that when selenium is added to soils to a level of approximately 2 kg, it results in toxic levels of Se in forage crops (Sharma, 1983). Information on the concentrations of Se present in sewage sludges, while not extensive, tends to suggest that repeated applications of sludge to the soil could cause forage to absorb sufficient quantities of Se to be toxic to foraging animals.…”

Hydrological and geochemical investigations of selenium behavior at Kesterson Reservoir

“…The importance of understanding redox conditions with respect to the behavior of selenium in soils also has a long history (Anderson et al, 1961;Rosenfeld and Beath, 1964;Sharma and Singh, 1983). Recently, attention has again been drawn to this problem with Se contamination of Kesterson Reservoir, California, as a result of wildlife deaths and deformities in a wetland supplied with seleniferous agricultural drain waters (Ohlendorf, 1989).…”

Bimetallic Oxide Nanohybrid Synthesized from Diatom Frustules for the Removal of Selenium from Water

“…Selenium is an important micronutrient for animals and humans but is toxic in excess [1]. Higher Se concentration can lower reproduction rates and increase birth defects [2,3].…”