The study is a British joke? What are you talking about?
It seems to work with all rice, just with varying effectiveness.
https://www.sciencedirect.com/science/article/pii/S004896972...
Why do you think the study is targeting Japan? And why would the Brits joke about it?
Do you think I am? It's just good, general info. Arsenic in rice is problem, and getting worse.
I wonder why you would claim something like this, which literally can save lives, is false?
Something about this study is a bit odd. Why does the white rice cooked without rinsing or draining have less arsenic than the raw rice? Is it dissolving then escaping as steam? If so, it seems like the drying step of the experiment screws up the interpretation of the results. If not, conservation of species mass is violated somehow.
Parboiling and draining rice has been a long-running European joke. Frenches do it as well. It absolutely ruin all short grains. It's a cooking method specifically for long grain rice as used in South Asian cooking, for which steaming would be wrong. And that is the point.