Methods of studying hazards: Epidemiological studies

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Methods of studying hazards: Epidemiological studies


Answer:Compares information among groups of people (usually an exposed and a non-exposed group). The potential effects are tracked generally for an extended period and specific effects are measured and calculated (e.g., death or cancer rates). Statistics are then employed to determine if there is a significant difference between the two groups, which may indicate that a toxicant was responsible. Unethical to use on humans so animal testing.

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