2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
6/08/2017 | 2:30 PM - 2:45 PM | STREAMLINING CAUSAL ASSESSMENT USING AN R-BASED SCREENING APPLICATION | 305B
STREAMLINING CAUSAL ASSESSMENT USING AN R-BASED SCREENING APPLICATION
The number of impaired waterbodies in the U.S. is rising as monitoring programs expand to include more locations and more possible sources of impairment. Moreover, few impaired waterbodies are affected by a single source, making it difficult to determine the cause or causes of biological impairment. EPA’s Causal Assessment/Diagnosis Decision Information System (CADDIS) provides a thorough approach to causal assessment but is time-consuming and data intensive. Consequently, there is a need for a tool capable of rapidly screening impaired waterbodies to help understand the likely causes of impairment, rule out unlikely causes, identify data gaps, and prioritize additional monitoring effort. We have developed a Causal Assessment Screening Tool as an R-based application and have demonstrated its utility using stream sites in southern California. The tool uses a combination of statistical techniques to select comparator sites, identify candidate causes, evaluate stressor-response relationships, and incorporate stressor-specific diagnostic tools. Its output can provide stakeholders with sufficient information to tailor next steps for an impaired waterbody, including filling critical data gaps, conducting more in-depth causal analyses, or developing appropriate restoration plans.
- S07 Conducting freshwater science with open-source, inexpensive technologies
- C36 Water Resource Management
- C19 Causal Assessment & C22 Disturbance
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Presenters/Authors
Ann Roseberry Lincoln
(), Tetra Tech, Inc., Ann.Lincoln@tetratech.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -