Encyclopedia of Environmental Science and Engineering, Volume I and II

872 PCBs AND ASSOCIATED AROMATICS

FIGURE 14 Di-ortho-chlorobiphenyls.

TABLE 12

Data from Larsen et al., Gordon and Breach 1993. (Ref. 155).

PCB # A1232 A1242 A1248 A1254 A1260 A1262 Askarel

60 0.46 0.66 1.32 0.56 0.011 0.027 0.039

74 0.86 1.37 2.65 1.77 0.023 0.061 0.070

77 — 0.50 0.30 ND ND — —

81 — ND — ND ND — —

105 0.17 0.43 1.00 4.71 0.045 0.0079 0.32

114 0.0080 0.0098 0.019 0.043 0.0014 0.0003 0.0011

118 0.32 0.74 1.69 9.09 0.57 0.25 1.94

123 0.024 0.038 0.085 0.33 ND ND ND

126 0.0013 0.0037 0.011 0.027 0.0004 ND ND

156 0.059 0.026 0.083 1.07 0.48 0.59 0.56

157 0.0013 0.0026 0.011 0.026 0.024 0.0078 0.085

167 ND ND 0.0014 0.045 0.030 0.017 0.059

169 ND ND ND ND ND ND ND

189 ND ND 0.012 0.031 0.13 0.052 0.077

COMPOUNDS OF CONCERN

In 1968 a group of workers at Kyushu University in northern

Japan determined that a group of patients with acneiform

eruptions similar to chloracne had ingested contaminated

rice oil used in cooking. The symptoms of the poisoning

suggested that it was due to organochlorine compounds. The

word “Yusho” or “rice oil” disease is used to describe the

incident. The number of recognized victims over a period of

about ten years rose to a total of approximately 1800 people.

The rice oil contamination was determined to be

Kanechlor 400 which was produced as an approximately

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