| Autor: |
Khangarot, B. S.1, Rathore, R. S.1, Singh, B. B.1 |
| Předmět: |
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| Zdroj: |
Bulletin of Environmental Contamination & Toxicology. Aug2003, Vol. 71 Issue 2, p0283-0289. 7p. |
| Abstrakt: |
This article focuses on the toxicity of heavy metals. The effect of a metal on aquatic organisms is influenced by a number of environmental factors, which may alter the rate of metabolism, state and availability of the pollutant. In determining the toxicity of trace metals to aquatic organisms, pH plays an important role because it affects the speciation and bioavailability of metals. Characteristic morphological and behavioral changes of sludgeworm were noted when exposed to various heavy metals. In higher concentrations of Cu, Hg, Cd and Zn in initial hours of exposure, worms loss their movement, were less active and in later hours showed slow movement. |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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