Record Display for the EPA National Library Catalog
RECORD NUMBER: 1 OF 171
|OLS Field Name||OLS Field Data|
|Main Title||2,3,7,8-TCDD (2,3,7,8-Tetrachlorodibenzo-p-Dioxin): Environmental Chemistry.|
|Author||Miller, G. C. ; Zepp, R. G. ;|
|CORP Author||Environmental Research Lab., Athens, GA. ;Nevada Univ., Reno. Dept. of Biochemistry.|
|Additional Subjects||Stability ; Chemical properties ; Physical properties ; Chlorine organic compounds ; Photolysis ; Environmental transport ; Dibenzodioxin/tetrachloro ; Toxic substances|
For molecules of its size and weight, 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) is one of the most toxic, least water soluble, least volatile, and most resistant to thermal and biological transformations. The combination of these properties has presented a challenging problem is assessing human hazards ascribable to TCDD because, although exposure concentrations are often low, the time frame for transport and most degradative processes in the environment is generally long. Under normal environmental conditions, the only transformation process that is fairly rapid for dioxins is photolysis.