This is a good read.
NOTE: it matters if you eat a lot of rice in your daily diet. It still matters even if you don't eat a lot of rice NOW, but you may end up in a situation where your stores of rice are a major part of your diet... Remember this if you store large amounts of rice.
https://www.backdoorsurvival.com/a-preppers-guide-to-removing-arsenic-from-rice/The instructions are clear, but buried in the article, scroll down and you will find them.
There is A LOT of other information in this article, it is worth reading and saving.