Note: 1, each of the detection method of Annex experimental factors: Method of Soil and detection limit <br>2, SB-2 / 0.5m: 0.5 m represents the number of sample wells No. 2, and so on <br>3, more than four samples dichloromethane Dutch soil interference value, but less than second-class GB-36660 standard filter values <br>4, ND: represents the detected value is less than the detection limit for more than half, meaning not detected "
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