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Titolo:
Comparative study between CalTOX and soil screening levels modeling approaches
Autore:
Coulibaly, L; Labib, ME; Hazen, R;
Indirizzi:
Kleinfelder Navy CLEAN Program, San Diego, CA USA Kleinfelder Navy CLEAN Program San Diego CA USA ogram, San Diego, CA USA New Jersey Inst Technol, Dept Civil & Environm Engn, Newark, NJ 07102 USA New Jersey Inst Technol Newark NJ USA 07102 nm Engn, Newark, NJ 07102 USA New Jersey Dept Environm Protect, Div Sci & Res, Trenton, NJ 08625 USA NewJersey Dept Environm Protect Trenton NJ USA 08625 enton, NJ 08625 USA
Titolo Testata:
SOIL & SEDIMENT CONTAMINATION
fascicolo: 3, volume: 10, anno: 2001,
pagine: 285 - 300
SICI:
1532-0383(2001)10:3<285:CSBCAS>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
ORGANIC-CHEMICALS;
Keywords:
multimedia model; risk assessment; environmental fate; soil contamination; exposure pathways;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Coulibaly, L Kleinfelder Navy CLEAN Program, 1230 Columbia St,Suite 400, San Diego, CA USA Kleinfelder Navy CLEAN Program 1230 Columbia St,Suite 400 San Diego CA USA
Citazione:
L. Coulibaly et al., "Comparative study between CalTOX and soil screening levels modeling approaches", SOIL SEDIM, 10(3), 2001, pp. 285-300

Abstract

A comparison was made between two different approaches to environmental modeling and risk assessment, specifically the one-medium approach of the USEPA Soil Screening Levels (SSL) and the multimedia approach in the CalEPA (CalTOX), Eleven priority pollutants were selected to represent different classes of chemicals as per their toxicity physical and chemical properties, and persistence in the environment Benzene, dioxin, PCB B(a)P, chlordane, chloroform, and TCE represent carcinogens, while xylene, toluene, phenol, chlordane, pyrene, TCE, and chloroform represent noncarcinogens. The highly volatile contaminants, including benzene, chloroform, xylene, toluene, and TCE, were selected to compare the volatilization from soil and the significance of inhalation pathways of the two models. The contaminants with strong sorption to soil and dust particles (dioxin, B(a)P, PCB, and chlordane) exhibited a preferential soil ingestion pathway. In contrast with CalTOX, inhalation was not considered as the dominant pathway for all the volatile contaminants in SSL. Furthermore, the risk assessment component of CalTOX accounts for multiple pathways as a consequence of its multimedia representation. Because the two models were based on different approaches, it is expected that the results would be different. For example, the results of the SSL were more conservative compared with CalTOX for all 1 chemicals. This observation still holds when considering the total risk from CalTOX vs. the risk based on the dominant pathway in SSL. Finally, the cancer slope factors and references doses were not the same for all the chemicals used in this studyand resulted in different risk estimates.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/21 alle ore 12:49:41