Federal and state perspectives on regulation and remediation of irrigation-induced selenium problems; methods of analysis for the determination of selenium in biological, geological and water samples; analytical detection of selenium in water, soil and plants; sequential supplementation of fertilizers on human nutrition and selenium status; effects of selenium supplementation of field crops; selenium metabolism in grazing ruminants - deficiency, supplementation and environmental implications; environmental implications of uses of selenium with animals; supplementation of selenium in the diets of domestic animals; mass balance approach to selenium cycling through the San Joaquin Valley - from source to river to bay; selenium sources and effects of biota in the Green River Basin of Wyoming, Colorado, and Utah; selenium and salinity concerns in the Salton Sea area of California; selenium cycling in estuarine wetlands - overview and new results from the San Francisco bay; selenium accumulation in a wetland channel, Benton Lake, Montant; selenite sorption by coal mine backfill materials in the presence of organic solutes; pathology of selenium poisoning in fish; selenium effects on endangered fish in the Colorado River basin; selenium poisoning of fish and wildlife in nature - lessons from 12 real-world experiences; magic numbers, elusive lesions - comparative pathology and toxicology of selenosis in waterfowl and mammalian species; prediction of lands susceptible to irrigation-induced selenium contamination of water. (Part contents).
