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Table 5 Concentration of DMS in leachate and groundwater [µg/L] and related attenuation factors

From: Natural attenuation along subsurface flow paths based on modeling and monitoring of a pesticide metabolite from three case studies

Attenuation Step Catchment I Attenuation factor Catchment II Attenuation factor Catchment III Attenuation factor
0 FOCUS scenario Hamburg at 1 m depth 9.4 18 34
1 Leachate at 1 m depth 12 14 27
2 Leachate to aquifer 12 1.0 15 0.9 1.7 16
3 Aquifer next to treated area 1.7 7.1 3.6 4.1 0.7 2.6
4 Downstream, close to treated area 0.7 2.4 1.8 2.0 n.a. a) n.a. a)
5 Close to raw water abstraction 0.6 1.2 1.1 1.6 0.3 2.2
6 Collected raw water 0.3 2.0 0.3 3.7 0.1 2.6
Total attenuation (Step 1 to 5) “field-to-observation well”   20   12   93
Overall attenuation (Step 1 to 6) “field-to-drinking water well”   40   45   246
  1. Not available