Cancer is a leading cause of death throughout the world. Environmentalists and others have raised concerns regarding the cancer-causing (carcinogenic) potential of exposure to a constantly growing number of both newly developed and long-existing chemicals in the environment. In addition, humans seem to be increasingly exposed to various sources of electromagnetic waves, such as microwaves, and some groups and individuals are concerned about the possible carcinogenicity of these physical... więcej

Salem Press Encyclopedia, 2023. 2p.

Describing cancer: Cancer has been studied intensely for a long time, yet its causes remain elusive and uncertain. There is much evidence that when certain chemical compounds are introduced to the human body, the probability of a tumor forming is increased; such compounds are known as carcinogens. Scientists have used several methods to gather evidence about the carcinogenicity of a chemical before allowing general use.

Salem Press Encyclopedia of Health, 2022. 3p.