Abstract
Two samples of commercial detergents were analyzed for PCDDs and PCDFs. The soft soap contained around 100 times higher levels than the hypochlorite-based bleach. Soft and liquid soap are prepared from tall oil as tall resin by-products from the pulp industry. Samples of tall oil and tall resin were also analyzed and found to have much higher levels than the soft soap, although the isomeric pattern was found to be almost identical for the three products. An estimate of the total level of PCDDs and PCDFs in the tall oil and the tall resin indicates amounts in the same range as the total amount of the total effluents or the production of bleached pulp in Sweden.
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