A 2020 study, published in Science of the Total Environment, suggested cooking rice in a certain way removes over 50% of the naturally occurring arsenic in brown rice, and 74% of it in white rice. Yet it didn’t reduce micronutrient levels.
Article source: https://www.huffingtonpost.co.uk/entry/par-boil-rice-arsenic-levels_uk_6a4255f7e4b0f4826b464d03