Civil Engineering - Water Supply Engineering - Discussion
Discussion Forum : Water Supply Engineering - Section 5 (Q.No. 19)
19.
The ensure proper growth of children's teeth, the quantity of flouride used in water mains, is
Discussion:
5 comments Page 1 of 1.
Manish said:
9 years ago
I think the answer should be 2 mg/lit.
Roy said:
8 years ago
In 2015, the U.S. Department of Health and Human Services issued a recommendation for the optimal fluoride level that should be in drinking water to prevent tooth decay.
This new recommendation is for a single level of 0.7 milligrams of fluoride per liter of water, opposed to the 0.7 to 1.2 ppm.
This new recommendation is for a single level of 0.7 milligrams of fluoride per liter of water, opposed to the 0.7 to 1.2 ppm.
Viru Kapoor said:
7 years ago
Flouride content 1.5mg/l.
(1)
Pankaj s wagh said:
7 years ago
Fluorine and flouride is same or different? please tell me.
Thejoroop said:
6 years ago
Fluorides with more than 1.5 mg/l would lead to mottling of teeth and less than 1 mg/l will cause tooth decay due to cavity formation. Ideal concentration is 1 mg/l to 1.2 mg/l. Hence option A is correct.
(1)
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