NO. Chemical Copeland method Multi-index comparison
Original data Pretreatment data Original data Pretreatment data
1 2,4ʹ- DDD 19 19 25 15
2 2,4ʹ- DDE 13 13 12 12
3 2,4ʹ- DDT 1 1 1 1
4 4,4ʹ- DDD 10 10 9 11
5 4,4ʹ- DDE 3 3 6 9
6 4,4’- DDT 2 2 3 2
7 alpha-Hexachlorocyclohexane 35 35 26 28
8 beta-Hexachlorocyclohexane 8 9 2 6
9 gamma-Hexachlorocyclohexane 24 23 32 21
10 Lindane 44 44 33 45
11 Hexachlorobenzene 7 6 4 3
12 Mirex 18 18 14 18
13 Aldrin 9 8 10 8
14 Endrin 5 5 15 5
15 Heptachlor 12 11 8 10
16 Chlordane 36 37 35 47
17 Chlordane 26 26 31 41
18 Acenaphthylene 63 63 67 64
19 Acenaphthene 58 58 49 58
20 Anthracene 49 46 46 48
21 1,2-Benzanthracene 25 22 29 23
22 Benzo[a]pyrene 6 7 7 7
23 Benzo[b]fluorathene 38 38 30 31
24 Benzo(ghi)perylene 29 27 39 40
25 Benzo[k]fluorathene 11 12 17 13
26 Dibenz[a,h]anthracene 23 25 21 25
27 Fluoranthene 37 36 59 37
28 Fluorene 53 53 41 57
29 Indeno[1,2,3-cd]Pyrene 16 15 18 14
30 naphthalene 32 32 11 24
31 Phenanthrene 22 24 23 32
32 Pyrene 40 41 42 46
33 Butyl benzyl phthalate 52 52 28 43
34 59 59 38 59
35 Dibutyl phthalate 30 30 27 30
36 Dicofol 14 14 13 17
37 Methamidophos 51 51 65 56
38 Chlordimeform 56 56 34 50
39 Acetamiprid 67 67 70 67
40 Alachlor 43 42 22 35
41 Amitraz 45 45 20 39
42 Buprofezin 60 60 58 60
43 Machette 61 61 61 62
44 Carbofuran 57 57 63 55
45 Chlorothalonil 42 43 24 29
46 Clorpyrifos 17 16 36 16
47 Clomazone 71 71 68 71
48 Cyfluthrin 46 48 54 44
49 Cypermethrin 28 28 45 22
50 Deltamethrin 48 49 56 51
51 Diazinon 55 54 50 52
52 Thiosulfan I 34 34 48 38
53 Thiosulfan II 31 31 47 36
54 Mocap 21 20 37 20
55 Phenvalerate 41 39 57 34
56 Esfenvalerate 15 17 40 26
57 Hexythiazox 64 65 44 63
58 Isoproturon 68 68 64 68
59 Cyhalothrin 39 40 53 42
60 Metolachlor 62 62 52 61
61 Nitrfen 33 33 16 27
62 O,O-Dimethyl-S-methylcarbamoylmethylphosphorothioate 65 64 66 65
63 Oxyfluorfen 47 47 43 49
64 Parathion-methyl 50 50 51 53
65 Pirimicarb 66 66 71 66
66 Prometryn 70 70 62 69
67 Pyridaben 54 55 60 54
68 Triazophos 27 29 55 33
69 Tricyclazole 69 69 69 70
70 Trifluralin 20 21 19 19
71 Chlorobiphenyl 4 4 5 4
Table 2: Ranking order of the Copeland method and the multi-index comparison method after data pretreatment.