Fig. 3. Dissipation of 1 mg kg^-1 17-ethynylestradiol by a loam soil adjusted to a moisture content of 13%, and incubated at 30°C. Nonsterile soil was incubated under an atmosphere of nitrogen gas (left panel) or air (center panel). Soil sterilized by autoclaving was incubated under air (right panel). Error bars indicate standard deviation.

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