Ground-Truthing Validation to Assess the Effect of Facility Locational Error on Cumulative Impacts Screening Tools | Zendy

James Sadd | Zendy; Eric S. Hall | Zendy; Manuel Pastor | Zendy; Rachel MorelloFrosch | Zendy; D. Lowe-Liang | Zendy; James C. Hayes | Zendy; Clark Swanson | Zendy

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Ground-Truthing Validation to Assess the Effect of Facility Locational Error on Cumulative Impacts Screening Tools

Author(s) -

James Sadd,

Eric S. Hall,

Manuel Pastor,

Rachel MorelloFrosch,

D. Lowe-Liang,

James C. Hayes,

Clark Swanson

Publication year - 2015

Publication title -

geography journal

Language(s) - English

Resource type - Journals

eISSN - 2314-4211

pISSN - 2314-4203

DOI - 10.1155/2015/324683

Subject(s) - ground truth , cumulative effects , government (linguistics) , hazardous waste , distance decay , completeness (order theory) , environmental justice , environmental science , risk assessment , environmental resource management , environmental planning , computer science , transport engineering , geography , engineering , mathematics , computer security , machine learning , ecology , mathematical analysis , linguistics , philosophy , economic geography , biology , waste management

Researchers and government regulators have developed numerous tools to screen areas and populations for cumulative impacts and vulnerability to environmental hazards and risk. These tools all rely on secondary data maintained by government agencies as part of the regulatory and permitting process. Stakeholders interested in cumulative impacts screening results have consistently questioned the accuracy and completeness of some of these datasets. In this study, three cumulative impacts screening tools used in California were compared, and ground-truth validation was used to determine the effect database inaccuracy. Ground-truthing showed substantial locational inaccuracy and error in hazardous facility databases and statewide air toxics emission inventories of up to 10 kilometers. These errors resulted in significant differences in cumulative impact screening scores generated by one screening tool, the Environmental Justice Screening Method

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