Minerals including Ilmenite, Monazite, Thorium, and Titanium, are found in the coastal belt of Kerala.[99] Kerala's coastal belt of Karunagappally is known for high background radiation from thorium-containing monazite sand. In some coastal panchayats, median outdoor radiation levels are more than 4 mGy/yr and, in certain locations on the coast, it is as high as 70 mGy/yr.[175]