| heavy metals |
A metallic element of high specific gravity, such as antimony, bismuth, cadmium, copper, gold, lead, mercury, nickel, silver, tin, and zinc. These metals, which are toxic even in low concentrations, persist in the environment and can accumulate to levels that stunt plant growth and interfere with animal life.
출처: biology.usgs.gov/s+t/SNT/noframe/zy198.htm
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| heavy metals |
metallic elements (Example: cadmium, chromium, copper, lead, mercury, nickel, and zinc) which are used to manufacture products; they are present in some industrial, municipal, and urban runoff.
출처: www.wef.org/publicinfo/newsroom/wastewater_glossar...
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| heavy metals |
the heavy metals of concern to gardeners are lead, zinc, nickel, arsenic, copper and cadmium. These metals can be toxic to plants when they accumulate to high levels in the soil.
출처: www.hcs.ohio-state.edu/mg/manual/glossary.htm
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| heavy metals |
Metallic elements with high molecular weights. Such metals are often residual in the environment, exhibit biological accumulation, and are generally toxic in low concentrations. Examples include chromium, mercury, and lead.
출처: www.lbl.gov/NABIR/fieldresearch/frc/ea/ea_12_0.htm...
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| heavy metals |
Dense metals of high relative atomic mass such as lead, cadmium and mercury. Heavy metals can accumulate in the tissues and are toxic beyond certain levels, which vary from person to person.
출처: www.womenshealthmatters.ca/centres/environmental/c...
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