Polychlorinated biphenyl description

Hawker, D. W. (1990a) Vapor pressures and Henry s law constants of polychlorinated biphenyls. Environ. Sci. Technol. 23, 1250-1253. Hawker, D. W. (1990b) Description of fish bioconcentration factors in terms of solvatochromic parameters. Chemosphere 20, 267-477. Hawker, D. W., Connell, D. W. (1988) Octanol-water partition coefficients of polychlorinated biphenyl congeners. Environ. Sci. Technol. 22, 382-387. 

Once the organic solute is adsorbed onto the polymer, it can be desorbed by using an organic eluting solvent that has strong solvent-polymer and solute-solvent interactions. A better focus of this qualitative description can be obtained by considering the example of the adsorption and desorption of polychlorinated biphenyls (PCBs). 

MRL has never been intended as a one-size-fits-all tool for all hazardous waste site exposure scenarios rather, it is merely a starting point for further examination of potential health risk. Therefore, at sites where methylmercury is present in combination with other known or suspected neurodevelopmental toxicants, such as lead or polychlorinated biphenyls (PCBs), and in which exposure is primarily episodic in nature, the health assessor might consider using a value below the chronic oral MRL for methylmercury as a starting point for determination of further site investigation. (A more complete description of the uses of MRLs and other HGVs can be found in Chou et al. 1998 and Risher and De Rosa 1997.)... 

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