Monitoring arsenic species concentration in rice-based processed products distributed in South Korean markets and related risk assessment.

Unlabelled: Rice is an important grain as a major source of carbohydrates in Asia but contains more arsenic (As) than other grains. A total of 239 rice-based processed foods (rice,  = 30; rice cake,  = 30; porridge,  = 39; noodles,  = 33; bread,  = 20; snack,  = 59; powder,  = 28) were purchased in 2019 from domestic markets to measure total As (tAs) and As species. The average tAs and inorganic As (iAs) in each sample group ranged from 20 to 180 μg/kg (porridge for baby to noodle) and 4.