440
Index
Zinc (Zn) (Continued )
roles of, 362
toxicity of, 363
minerals of, 355
oxidation state of, 355
in plants
bioavailability of, 361
concentration of, 361–362
contents of, 360, 361
interaction between other elements and, 361
metabolic functions of, 360
production in 2010, 355
in rocks, 355
in soils
agricultural sources, 357
concentration of, 356
contents of, 355, 356t, 358
deficiencies of, 357
status in, 356
in waters
assessment limits for, 359
concentration of, 359
contents of, 356t, 358
Zircon, 137
Zirconium (Zr)
in air, 368t, 369
in coal, 367
dietary intake of, 370
in humans, 369–370
oxidation state of, 367
in plants, 369
production in 2010, 367
in soils, 367–368, 368t
in waters, 368–369, 368t