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. 2018 May 20;43(2):96–107. doi: 10.1584/jpestics.D17-088

Table 3. Concentrations of total and phytoavailable organic chemicals in soil.

Chemicals Concentration (µg/kg, µg/L)a) Ct=C0e/kt τ1/2 (days) Mean Conc. (µg/kg, µg/L)
1 d 3 d 7 d 14 d 22 d C0 k r2
Total organic chemicals in soil
Dinotefuran 1263.0 1399.8 1372.0 1291.4 1295.9 1341.5 0.001 0.08 >22 1319.4
Imidacloprid 1300.7 1475.5 1355.1 1234.1 1313.5 1377.3 0.003 0.20 >22 1323.8
Clothianidin 1317.9 1392.6 1262.8 1156.1 1163.5 1355.3 0.008 0.77 >22 1234.0
Thiacloprid 1289.7 1557.8 1363.9 1294.8 1364.6 1397.7 0.002 0.05 >22 1364.9
Fosthiazate 1422.6 1479.5 1144.5 1009.3 1039.7 1421.6 0.018 0.74 >22 1159.9
Metalaxyl 1272.0 1294.5 1071.6 1006.9 1061.3 1250.5 0.010 0.60 >22 1111.0
Fenobucarb 827.0 879.3 665.1 693.9 728.3 810.8 0.008 0.31 >22 742.4
Procymidone 1033.9 1158.7 844.0 959.0 962.6 1033.8 0.005 0.14 >22 976.0
Flutolanil 1396.5 1590.6 1155.6 1383.0 1326.6 1410.2 0.004 0.07 >22 1353.0
β-HCH 864.5 1080.6 947.0 915.5 925.9 959.7 0.002 0.03 >22 940.6
Tolclofos-methyl 1149.7 1289.7 869.9 935.3 942.7 1146.8 0.012 0.38 >22 1000.9
Dieldrin 1205.2 1278.8 1310.8 1122.8 1254.7 1248.4 0.001 0.04 >22 1229.2
Phytoavailable organic chemicals in soil
Dinotefuran 511.6 427.8 396.0 271.4 255.3 491.9 0.033 0.92 20.8 335.2
Imidacloprid 40.2 28.6 20.2 11.9 11.3 34.9 0.060 0.88 11.6 17.5
Clothianidin 64.0 44.5 35.4 20.6 19.0 56.2 0.057 0.89 12.3 29.3
Thiacloprid 20.0 12.9 8.5 4.9 4.6 16.5 0.068 0.86 10.2 7.5
Fosthiazate 857.1 533.4 390.3 215.3 171.8 727.4 0.073 0.92 9.5 314.3
Metalaxyl 946.7 565.5 406.2 250.2 212.9 761.9 0.066 0.87 10.5 357.0
Fenobucarb 426.5 268.4 300.6 118.2 96.0 402.9 0.070 0.90 9.9 179.6
Procymidone 45.2 24.6 23.6 9.3 8.2 38.1 0.079 0.88 8.8 15.4
Flutolanil 101.4 44.4 40.5 14.5 12.2 77.3 0.095 0.87 7.3 26.0
β-HCH 33.7 21.9 16.3 11.4 10.5 27.6 0.051 0.84 13.6 15.3
Tolclofos-methyl 5.4 2.4 1.8 0.6 0.5 4.1 0.109 0.90 6.3 1.2
Dieldrin 1.6 1.2 0.7 0.8 0.6 1.3 0.037 0.71 18.9 0.9

a) The concentration of total organic chemicals were expressed in µg/kg per dry soil, and those of phytoavailable organic chemicals were expressed in µg/L.