This page discusses the complex relationship between dose and response for mutagens and carcinogens, indicating that low doses may have no effect or even reduce cancer risk, contradicting the linear n...This page discusses the complex relationship between dose and response for mutagens and carcinogens, indicating that low doses may have no effect or even reduce cancer risk, contradicting the linear no-threshold model. Evidence varies regarding cancer incidence linked to radiation exposure, with some areas showing high background radiation without increased cancer rates.