Fluoride pollution mainly affects:

Step-by-step solution

Fluoride is a mineral found in bones, teeth, the thyroid gland, and the skin. It is important for the optimal formation of dental enamel and bone mineralization. However, in abundance, it has negative effects on the joints, bones and causes fluorosis in the teeth. Related Theory - Teeth are affected by fluoride immediately. Since it results in tooth decay and decolouration quite quickly. it gets distributed into the contaminated water: great caution must be taken. Knock knee syndrome is caused by Fluoride pollution