Arsenic toxicity and its widespread substantial distribution is becoming a major concern
throughout the world. Recently, vast areas of North-eastern States of India have been
detected with high concentration (range 50-986 µg/l) of ground water arsenic. The level is
distressingly significant when compared to the permissible limits quoted by WHO (World
Health Organization) and BIS (Bureau of Indian Standards)(10 µg/l and 50 µg/l respectively).
Rapid urbanization and expansion of agricultural irrigation systems have increased the …

Arsenic toxicity and its widespread substantial distribution is becoming a major concern
throughout the world. Recently, vast areas of North-eastern States of India have been
detected with high concentration (range 50-986 μg/l) of ground water arsenic. The level is
distressingly significant when compared to the permissible limits quoted by WHO (World
Health Organization) and BIS (Bureau of Indian Standards)(10 μg/l and 50 μg/l respectively).
Rapid urbanization and expansion of agricultural irrigation systems have increased the …