Microbial response to repeated applications of low concentrations of pentachlorophenol in an alfisol under pasture

Columns of an Alfisol under permanent pasture were polluted by repeated additions of pentachlorophenol (PCP) (7 mg l −1) to levels of 102 and 510 mg Kg −1, to simulate a dynamic diffuse pollution. PCP was rapidly sorbed to the soil organic matter, and was only slightly degraded. Measurements of soil...

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