Madhavan n and subramanian fluoride concentration in river waters of south asis
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➡️ Fluoride levels in various types of environmental samples show wide variations from a low of 1.2 µg/m 3 in the air samples over Delhi to a very high value of over 18,000 µg/l in a hot spring in the Western Ghats region , due to which the surface water samples in the mountain streams generally show higher F levels. Large rivers with large runoff show higher levels of fluoride and hence greater fluoride flux to the oceans.
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Fluoride levels in various types of environmental samples show wide variations from a low of 1.2 μg/m3 in the air samples over Delhi to a very high value of over 18,000 μg/l in a hot spring in the Western Ghats region, due to which the surface water samples in the mountain streams generally show higher F levels. Large rivers with larg run-off show higher levels of fluoride and hence greater fluorid flux to the oceans
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