In Rice: How Much Arsenic Is Too Much?
"The news that some rice-based foods are surprisingly high in arsenic has left rice lovers wondering how the 
heck we're to know what's safe to eat."
"Since Dartmouth College researchers reported last week that a toddler formula and energy bars sweetened with organic brown rice syrup tested high for arsenic, readers of The Salt have had lots of questions about how one might find out the arsenic content of rice-based foods, and figure out what's safe."
"Alas, those questions don't have simple answers."