Spinal-Fusion
发表于 2025-3-28 17:10:19
http://reply.papertrans.cn/43/4251/425095/425095_41.png
大炮
发表于 2025-3-28 21:12:24
Heavy Metals and Metalloids as Micronutrients for Plants and Animals, ecosystems, animals and humans. However, many of the heavy metal(loid)s are actually micronutrients, that is they are essential (in small quantities) for the normal growth of plants and/or animals. Copper (Cu), manganese (Mn), molybdenum (Mo), nickel (Ni) and zinc (Zn) are the heavy metals that ar
表否定
发表于 2025-3-28 23:51:04
Critical Loads of Heavy Metals for Soilsiding long-term risks to food quality and eco-toxicological effects on organisms in soils and surface waters. A critical load for metals equals the load resulting at steady state in a concentration in a compartment (e.g. soil solution, plant, fish) that equals the critical limit for that compartment
骚动
发表于 2025-3-29 06:54:49
Arsenicrations in the soil solid phase range between 0.1 and 55 mg kg. in uncontaminated soils but may be as high as several percent in soils contaminated by mining, smelter and other industrial activities. In aerobic mineral soils, As is primarily associated with iron (Fe) (oxy)hydroxides whereas As sulph
使饥饿
发表于 2025-3-29 07:45:48
http://reply.papertrans.cn/43/4251/425095/425095_45.png
commonsense
发表于 2025-3-29 13:27:21
http://reply.papertrans.cn/43/4251/425095/425095_46.png
Mumble
发表于 2025-3-29 15:38:45
Cobalt and Manganeseer-soluble and exchangeable forms of Mn(II) and the insoluble Mn oxides, mainly Mn(IV) and to a lesser and more uncertain extent as Mn(III). The concentration of water-soluble plus exchangeable Mn(II) (WS+Exch Mn) is determined by the relative rates of the chemically independent and physically separ
Neutral-Spine
发表于 2025-3-29 19:56:31
http://reply.papertrans.cn/43/4251/425095/425095_48.png
ALIAS
发表于 2025-3-30 01:34:54
Leadal scale, mainly associated with mining and smelting of the metal and addition of organic Pb compounds to petrol. Other sources of soil Pb pollution are shooting ranges and sewage sludges. Release of Pb to the atmosphere from various high-temperature processes has led to surface contamination on the
Alveoli
发表于 2025-3-30 05:14:21
Mercurye recently because of its toxicity. The extensive use of Hg has resulted in significant contamination of soils locally and regionally and sometimes to human and animal exposure at toxic levels. Human use of Hg started already in antiquity and reached a maximum around 1975. Since then the major appli