Stressor 05
Stressor 05 : Any physical, chemical, or biological entity that can induce an adverse response. [SETAC, 1997: Ecological Risk Assessment Technical Issue Paper] [USEPA, 1997: Guidance on Cumulative Risk Assessment, Planning and Scoping] [USEPA, 1997a: EPA Terms of Environment] [USEPA, 1998a: Guidelines for Ecological Risk Assessment] [CENR, 1999: Ecorisk in the Federal Government] [Note: Some of the definitions above also say that "stressor" is synonymous with "agent." Although this is generally true, the term "stressor" also includes the connotation that the adverse response can be the result of a lack of something - such as a habitat - which would also be called a "stressor." The term "agent" does not have this connotation, and is only used to denote a causative entity which actually physically exists as part of the environment.]
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