Abstract
PCB mixtures in surface deposits composed of core sand and ash from an aluminum foundry are enriched (3.6–9.4%) in chlorine percentage relative to deeper horizons. The deeper materials closely match (R2 = 0.902–0.962) Aroclor 1248, the aroclor used on-site and recovered from the floor inside the foundry (R2 = 0.998). This similarity suggests the more deeply buried PCBs have been stable and immobile for a 20–40 yr period. Chlorine enrichment upward is interpreted as the result of volatilization of lower and orthochlorinated congeners from surficial materials during repeated water evaporation. These results suggest surficial deposits contaminated by PCBs may be a significant source of lower ortho-chlorinated PCB congeners to the atmosphere and that buried PCBs can remain unchanged for decades. Comparison with sediments contaminated with Aroclor 1248 and known to have undergone anaerobic microbial dechlorination, indicates that Aroclor 1248 can be transformed to PCB mixtures enriched or depleted in chlorine by environmental processes.
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References
Anderson, P. and Hites, R.: 1996, Environmental Science and Technology 30, 1756.
Bedard, D. and May, R.: 1996, Environmental Science and Technology 30, 237.
Bedard, D.: 1990, ‘Bacterial Transformation of Polychlorinated Biphenyls', in D. Kamely, A. Chakrabatry and G. Omenn (eds.), Biotechnology and Biodegradation, Advances in Applied Biotechnology Series, v. 4, Portfolio Publishing Co., The Woodlands, Texas, pp. 369–388.
Brown, J., Jr., Bedard, D., Brennan, M., Carnahan, J., Feng, H. and Wagner, R.: 1987, Science 236, 709.
Bunce, N.: 1982, Chemosphere 11, 704.
Carey, J., Lawrence, J. and Tosine, H.: 1976, Bulletin of Environmental Contamination and Toxicology 16, 697.
Chiarenzelli, J., Scrudato, R., Arnold, G., Wunderlich, M. and Rafferty, D.: 1996, ‘Volatilization of Polychlorinated Biphenyls During Sediment Drying at Ambient Conditions', Chemosphere 33, 899.
Chiarenzelli, J., Scrudato, R., Arnold, G. and Oenga, G.: 1995, Characterization of Sediment and Implications for Remedial Activities in the St. Lawrence River Ecosystem, International Conference on the St. Lawrence River Ecosystem, Cornwall, Ontario, p. 5.
Cullen, A., Vorhees, D. and Altshul, L.: 1996, Environmental Science and Technology 30, 1581.
Flanagan, W. and May, R.: 1993, Environmental Science and Technology 27, 2207.
Grundy, S., Bright, D., Dushenko, W. and Reimer, K.: 1996, Environmental Science and Technology 30, 2661.
Harkness, M. and 18 others: 1993, Science 259, 503.
Harner, T., Mackay, D. and Jones, K.: 1995, Environmental Science and Technology 29, 1200.
Hatzinger, P. and Alexander, M.: 1995, Environmental Science and Technology 29, 537.
Loganathan, B. and Kannan, K.: 1994, Ambio 23, 187.
Pignatello, J. and Chapa, G.: 1994, Environmental Toxicology and Chemistry 13, 423.
Ruelle, P., Buchman, M., Nam-Tran, H. and Kesselring, U.: 1993, Environmental Science and Technology 27, 266.
Sokol, R., Kwon, O., Bethany, C. and Rhee, G-Y.: 1994, Environmental Science and Technology 28, 2054.
Sokol, R., Bush, B., Wood, L. and Jahan-Parwar, B.: 1992, Chemosphere 24, 483.
Zhang, P., Scrudato, R., Pagano, J. and Roberts, R.: 1993, Chemosphere 26, 1213.
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Chiarenzelli, J., Scrudato, R., Jensen, K. et al. Alteration of Aroclor 1248 in Foundry Waste by Volatilization?. Water, Air, & Soil Pollution 104, 113–124 (1998). https://doi.org/10.1023/A:1004933104586
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DOI: https://doi.org/10.1023/A:1004933104586