Total organic halides

In New York and Massachusetts where PCB contamination is always a possibility, the laboratory tests required by the state environmental protection agencies for analysis of a petroleum-contaminated soil are as follows (a) flash point (b) total petroleum hydrocarbon (TPH) (c) PCB screening (d) total organic halides (TOH) (e) reactivity of cyanide and sulfide (f) BTEX or equivalent (g) eight metals under TCLP (Toxicity Characteristics Leaching Procedure) for USTs and (h) full range of tests under TCLP for ASTs and spills. 

Total organic halide Organohalides are separated from water by (TOX) adsorption onto a charcoal packed column. The... 

Singer P. C. and Chang S. D. (1989) Correlations between trihalomethanes and total organic halides formed during water treatment. J. Am. Water Works Assoc. 81, 61-65. 

Table 2 summarizes THM and TOX (total organic halide) data for samples collected at points in the treatment train when chlorine was used for both prechlorination and postchlorination. The data show that TOX levels increase with TTHM levels. Table 3 summarizes similar data after postchloramination was instituted. These data show that although the TTHM formation ceases after the addition of ammonia, the production of TOX continues, but at a greatly reduced rate. 

Data for soil, sediment, and sludge are also required for successful project completion. Treatability tests should be conducted to identify parameters such as water, alkaline metals, and humus content in the soils the presence of multiple phases and total organic halides that could affect processing time and cost (22). 

Total Organic Halides as a Part of Disinfection By-Products.355... 

There are other parameters for estimating water contamination. Besides those already mentioned (i.e., BOD, COD, and TOC), total organic halide (TOX) is a very useful parameter. The combination of all these parameters would give complete information for the characterization of the organic matter present in a sample. 

S. Echigo, X. Zhang, R.A. Minear, and M.J. Plewa. Differentiation of total brominated and chlorinated compounds in total organic halide measurement a new approach with an ion-chromatographic technique. ACS Sym. Ser., 761 330-342, 2000. 

Total organic halides (TOX) measure the gross quantity of halogenated hydrocarbons (e.g., pesticides, solvents, halogenated organics) in water. 

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