In this article we will discuss about the major effects of toxic metals on humans and other animals. 1. Effect of Arsenic: Toxic Effects of Arsenic on Humans: Large doses of arsenic (70-180 mg) ingestion may be fatal. Symptoms of acute illness possibly leading to death consist of fever, hepatomegaly, melanosis, and cardiac arrhythmia. Other features include peripheral neuropathy, gastrointestinal, [...]
The following are the important toxic metals of global concern: 1. Arsenic 2. Lead 3. Mercury 4. Chromium 5. Cadmium 6. Copper 7. Zinc 8. Aluminium 9. Manganese. 1. Arsenic: Arsenic is particularly difficult to characterize as a single element because its chemistry is so complex and there are many different arsenic compounds. It may be trivalent or pentavalent and [...]
After reading this article you will learn about:- 1. Occurrence of Arsenic 2. Biochemical Effects of Arsenic 3. Transformation. Occurrence of Arsenic: The element arsenic is widely distributed in nature, being highly concentrated in coals. It occurs mostly in the form of arsenide's of true metals or as arsenopyrites. The average content of arsenic in freshwater is about 1.5 to [...]