> I don't remember enough of geography in China to overlay the rivers onto that selenium map The map includes two black lines corresponding to the Yangtze (end

> I don't remember enough of geography in China to overlay the rivers onto that selenium map The map includes two black lines corresponding to the Yangtze (ending near Shanghai) and the Yellow River (ending north of Jinan). Of course the rivers changed their course by a lot over the centuries, but I don't think that makes much of a difference in terms of selenium transport.