On top of that, the number of people living in regions that rely on the river for water has grown exponentially. (scientificamerican.com)
People living in these regions depend on the seasonal rains to bring water to their crops. (nationalgeographic.org)
Assessing the impact of any exposure to radiation in the environment may require cohort studies to look for a raised incidence of cancers years from now among people living in regions with raised levels of contamination. (scientificamerican.com)