1983
DOI: 10.1029/jc088ic04p02521
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Revised parameters for modeling the transport of PCB components across an air water interface

Abstract: A number of revisions of the data base and conceptualizations utilized in air‐water transport models for PCB components are suggested. The most significant of these involves the assignment of physical chemical properties on the basis of degree of chlorination. The effect of temperature on the rate of transport is also discussed. The revised model is tested on a number of natural situations and compared with available data.

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Cited by 27 publications
(19 citation statements)
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“…Potential errors exist in the predictive methods used, due to inaccuracies in estimating solubility and particularly vapor pressures of PCBs from parameters measured in experiments, and to a lesser extent on uncertainty involved in converting the solubilities of PCBs to their super-cooled reference state. Henry's Law constants have been predicted to decrease with increasing chlorine substitution by Bopp (1983), which is the trend seen in the ultrafiltered seawater and distilled water results reported here. However, the Henry's Law constants directly measured by Murphy et al (1983) (1) The initial bottle design used in the first experiment (3-24-84) employed 16 oz amber glass bottles and vapor was sampled and exchanged through brass 1/4" Swagelock fittings and 1/16" stainless steel tubing which were cemented to the plastic bottle caps.…”
Section: Resultssupporting
confidence: 83%
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“…Potential errors exist in the predictive methods used, due to inaccuracies in estimating solubility and particularly vapor pressures of PCBs from parameters measured in experiments, and to a lesser extent on uncertainty involved in converting the solubilities of PCBs to their super-cooled reference state. Henry's Law constants have been predicted to decrease with increasing chlorine substitution by Bopp (1983), which is the trend seen in the ultrafiltered seawater and distilled water results reported here. However, the Henry's Law constants directly measured by Murphy et al (1983) (1) The initial bottle design used in the first experiment (3-24-84) employed 16 oz amber glass bottles and vapor was sampled and exchanged through brass 1/4" Swagelock fittings and 1/16" stainless steel tubing which were cemented to the plastic bottle caps.…”
Section: Resultssupporting
confidence: 83%
“…It can also be seen from the data in Appendix Table 1 Table 1-2 to other direct measurements of H (Murphy et al, 1983), to predictions based on vapor pressure (Bidleman, 1984) and aqueous solubility (Chiou et al, 1983;MacKay et al, 1980a) measurements of the same congeners corrected to the super-cooled liquid reference state (Chiou et al, 1982(Chiou et al, , 1983, and predictions of H for average n-chlorine substituted PCBs based on the dependence of solubility and vapor pressure on the number of chlorine substituents (Bopp, 1983). There is up to a factor of ten difference among measured H and between measured H and H from predictions based on vapor pressures and solubilities.…”
Section: Resultsmentioning
confidence: 69%
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