This is a National Atmospheric Deposition map showing the amount of atmospheric nitrate deposited in rain and snowfall. Nitrate is an ion that occurs in nature, but is now dominated by industrial emissions. Central Ohio has the highest nitrate deposition in the country. Other industrial contaminants are also higher in this state. (We are east of industrial places like Gary, Indiana). It is difficult to determine the point source of environmental cancers, because it is often a combination of bads that stress our bodies. I may not be able to control the rainfall in Columbus, but I can choose what my family eats.
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