Voudrias E A, Larson R A, Snoeyink V L, Chen A S, Stapleton P L
Environ Health Perspect. 1986 Nov;69:97-100. doi: 10.1289/ehp.866997.
Granular activated carbon (GAC), in the presence of dilute aqueous hypochlorite solutions typical of those used in water treatment, was converted to a reagent capable of carrying out free-radical coupling reactions and other oxidations of dilute aqueous solutions of phenols. The products included biphenyls with chlorine and hydroxyl substitution (hydroxylated polychlorinated biphenyls). For example, 2,4-dichlorophenol, a common constituent of wastewaters and also natural waters treated with hypochlorite, was converted to 3,5,5'trichloro-2,4'-dihydroxybiphenyl and several related compounds in significant amounts. It is possible that these products pose more of a health hazard than either the starting phenols or the unhydroxylated polychlorinated biphenyl derivatives.
在水处理中使用的典型稀次氯酸盐溶液存在下，颗粒活性炭（GAC）转化为一种能够进行自由基偶联反应以及对酚类稀水溶液进行其他氧化反应的试剂。产物包括带有氯和羟基取代基的联苯（羟基化多氯联苯）。例如，2,4 - 二氯苯酚是废水以及用次氯酸盐处理过的天然水中的常见成分，它被大量转化为3,5,5'-三氯-2,4'-二羟基联苯以及几种相关化合物。这些产物可能比起始酚类或未羟基化的多氯联苯衍生物对健康造成更大的危害。
