Fig. 6
From: Rice life cycle-based global mercury biotransport and human methylmercury exposure

Potential driving factors of human methylmercury intake. a Relationship of the per capita probable weekly intake (PWI) of MeHg through rice with the gross domestic product; b relationship of the PWI of MeHg through rice with amount of MeHg in rice grain; c relationship of the PWI of MeHg through rice with the international rice trade. The gross domestic product data were obtained from the World Bank (http://www.worldbank.org/). Sample size (n) = 163. The sizes of the dots in the figure represent the population densities of the countries