Risk perception is the subjective evaluation of risk. Risk perception comprises the following issues: trust in authorities and in media coverage, need for information, knowledge about risk factors, and the subjective evaluation of risk in respect to the individual benefits or harm.
In general, risk perception depends on many different factors such as age, gender, existing knowledge and anxiety of illness. In context with electromagnetic fields, additional factors are familiarity with the technology, direct benefit and voluntary or involuntary exposure (e.g. mobile phone versus mobile phone base station).