What are the current concentrations and regulatory benchmarks for major contaminants in the Port Hope environment?
A31. The current concentrations of uranium, arsenic, fluoride, and ammonia in air, water and vegetation in Port Hope are below the respective benchmarks (see table below). Concentrations of uranium and arsenic in some soil samples are above the respective CCME soil quality guidelines due to the historical contamination in Port Hope. These exceedances are very limited and are not expected to result in any health consequences.
