USDA. NAL. Water and Agriculture Information Center.
"While there are many definitions of the word 'risk,' the EPA considers risk to be the chance of harmful effects to human health or to ecological systems resulting from exposure to an environmental stressor. A stressor is any physical, chemical, or biological entity that can induce an adverse response. Stressors may adversely affect specific natural resources or entire ecosystems, including plants and animals, as well as the environment with which they interact." Environmental Protection Agency.
View the results of a dynamic search of NAL's database for article citations and books on risk assessment and communication.
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