Nonradiological chemical pathway analysis and identification of chemicals of concern for environmental monitoring at the Hanford Site [electronic resource]
Pacific Northwest̀s Surface Environmental Surveillance Project (SESP) is an ongoing effort tot design, review, and conducted monitoring on and off the Hanford site. Chemicals of concern that were selected are listed. Using modeled exposure pathways, the offsite cancer incidence and hazard quotient w...
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Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
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Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
1995.
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| Subjects: |
MARC
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| 245 | 0 | 0 | |a Nonradiological chemical pathway analysis and identification of chemicals of concern for environmental monitoring at the Hanford Site |h [electronic resource] |
| 260 | |a Washington, D.C. : |b United States. Department of Energy. ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, |c 1995. | ||
| 300 | |a 80 p. : |b digital, PDF file. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a computer |b c |2 rdamedia. | ||
| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Published through SciTech Connect. | ||
| 500 | |a 11/01/1995. | ||
| 500 | |a "pnl--10714" | ||
| 500 | |a "DE96003370" | ||
| 500 | |a Blanton, M.L.; Cooper, A.T.; Castleton, K.J. | ||
| 520 | 3 | |a Pacific Northwest̀s Surface Environmental Surveillance Project (SESP) is an ongoing effort tot design, review, and conducted monitoring on and off the Hanford site. Chemicals of concern that were selected are listed. Using modeled exposure pathways, the offsite cancer incidence and hazard quotient were calculated and a retrospective pathway analysis performed to estimate what onsite concentrations would be required in the soil for each chemical of concern and other detected chemicals that would be required to obtain an estimated offsite human-health risk of 1.0E-06 cancer incidence or 1.0 hazard quotient. This analysis indicates that current nonradiological chemical contamination occurring on the site does not pose a significant offsite human-health risk; the highest cancer incidence to the offsite maximally exposed individual was from arsenic (1.76E-10); the highest hazard quotient was chromium(VI) (1.48E-04). The most sensitive pathways of exposure were surfacewater and aquatic food consumption. Combined total offsite excess cancer incidence was 2.09E-10 and estimated hazard quotient was 2.40E-04. Of the 17 identified chemicals of concern, the SESP does not currently (routinely) monitor arsenic, benzo(a)pyrene, bis(2- ethylhexyl)phthalate (BEHP), and chrysene. Only 3 of the chemicals of concern (arsenic, BEHP, chloroform) could actually occur in onsite soil at concern high enough to cause a 1.0E-06 excess cancer incidence or a 1.0 hazard index for a given offsite exposure pathway. During the retrospective analysis, 20 other chemicals were also evaluated; only vinyl chloride and thallium could reach targeted offsite risk values. | |
| 536 | |b AC06-76RL01830. | ||
| 650 | 7 | |a Hanford Reservation. |2 local. | |
| 650 | 7 | |a Environment. |2 local. | |
| 650 | 7 | |a Monitoring. |2 local. | |
| 650 | 7 | |a Risk Assessment. |2 local. | |
| 650 | 7 | |a Environmental Exposure Pathway. |2 local. | |
| 650 | 7 | |a Health Hazards. |2 local. | |
| 650 | 7 | |a Inorganic Compounds. |2 local. | |
| 650 | 7 | |a Environmental Sciences. |2 edbsc. | |
| 650 | 7 | |a Nuclear Fuels. |2 edbsc. | |
| 650 | 7 | |a Nuclear Reactor Technology. |2 edbsc. | |
| 710 | 2 | |a Pacific Northwest Laboratory. |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |4 spn. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
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