2003 CERCLA Priority List Hazardous Substances

2003 RANK
SUBSTANCE NAME
TOTAL POINTS
2001 RANK
CAS #
1
ARSENIC
1663.11
1
007440-38-2
2
LEAD
1531.60
2
007439-92-1
3
MERCURY
1506.66
3
007439-97-6
4
VINYL CHLORIDE
1385.32
4
000075-01-4
5
POLYCHLORINATED BIPHENYLS
1372.92
5
001336-36-3
6
BENZENE
1356.30
6
000071-43-2
7
CADMIUM
1319.32
7
007440-43-9
8
POLYCYCLIC AROMATIC HYDROCARBONS
1317.54
9
130498-29-2
9
BENZO(A)PYRENE
1308.71
8
000050-32-8
10
BENZO(B)FLUORANTHENE
1265.26
10
000205-99-2
11
CHLOROFORM
1228.08
11
000067-66-3
12
DDT, P,P'-
1191.57
12
000050-29-3
13
AROCLOR 1254
1186.98
13
011097-69-1
14
AROCLOR 1260
1176.90
14
011096-82-5
15
DIBENZO(A,H)ANTHRACENE
1163.45
16
000053-70-3
16
TRICHLOROETHYLENE
1161.43
15
000079-01-6
17
CHROMIUM, HEXAVALENT
1151.98
18
018540-29-9
18
DIELDRIN
1148.09
17
000060-57-1
19
PHOSPHORUS, WHITE
1144.87
24
007723-14-0
20
CHLORDANE
1130.53
19
000057-74-9
21
DDE, P,P'-
1130.20
21
000072-55-9
22
HEXACHLOROBUTADIENE
1129.10
20
000087-68-3
23
COAL TAR CREOSOTE
1124.66
22
008001-58-9
24
DDD, P,P'-
1117.38
26
000072-54-8
25
BENZIDINE
1114.82
25
000092-87-5
26
ALDRIN
1111.73
23
000309-00-2
27
AROCLOR 1248
1110.73
27
012672-29-6
28
CYANIDE
1101.40
28
000057-12-5
29
AROCLOR 1242
1095.84
29
053469-21-9
30
TETRACHLOROETHYLENE
1086.31
32
000127-18-4
31
TOXAPHENE
1085.57
31
008001-35-2
32
HEXACHLOROCYCLOHEXANE, GAMMA-
1079.78
33
000058-89-9
33
HEPTACHLOR
1067.53
30
000076-44-8
34
1,2-DIBROMOETHANE
1063.22
36
000106-93-4
35
BENZO(A)ANTHRACENE
1057.49
34
000056-55-3
36
DISULFOTON
1057.16
37
000298-04-4
37
HEXACHLOROCYCLOHEXANE, BETA-
1053.64
35
000319-85-7
38
BERYLLIUM
1044.41
38
007440-41-7
39
ENDRIN
1040.83
40
000072-20-8
40
HEXACHLOROCYCLOHEXANE, DELTA-
1037.91
39
000319-86-8
41
1,2-DIBROMO-3-CHLOROPROPANE
1034.99
41
000096-12-8
42
PENTACHLOROPHENOL
1026.93
43
000087-86-5
43
CARBON TETRACHLORIDE
1024.44
44
000056-23-5
44
HEPTACHLOR EPOXIDE
1023.70
42
001024-57-3
45
AROCLOR 1221
1016.86
46
011104-28-2
46
AROCLOR 1016
1014.42
48
012674-11-2
47
DDT, O,P'-
1013.41
50
000789-02-6
48
DI-N-BUTYL PHTHALATE
1011.31
47
000084-74-2
49
COBALT
1010.49
49
007440-48-4
50
CIS-CHLORDANE
1008.91
51
005103-71-9
51
NICKEL
1006.33
53
007440-02-0
52
ENDOSULFAN SULFATE
1006.02
52
001031-07-8
53
3,3'-DICHLOROBENZIDINE
1004.22
55
000091-94-1
54
ENDOSULFAN
1003.81
54
000115-29-7
55
TRANS-CHLORDANE
1001.83
57
005103-74-2
56
XYLENES, TOTAL
1000.92
56
001330-20-7
57
ENDOSULFAN, ALPHA
996.61
45
000959-98-8
58
DIBROMOCHLOROPROPANE
993.57
59
067708-83-2
59
METHOXYCHLOR
991.86
58
000072-43-5
60
AROCLOR
989.88
61
012767-79-2
61
BENZO(K)FLUORANTHENE
984.26
60
000207-08-9
62
ENDRIN KETONE
979.42
62
053494-70-5
63
ENDOSULFAN, BETA
975.58
63
033213-65-9
64
CHROMIUM(VI) OXIDE
967.84
65
001333-82-0
65
METHANE
959.39
66
000074-82-8
66
ENDRIN ALDEHYDE
954.77
69
007421-93-4
67
AROCLOR 1232
954.26
67
011141-16-5
68
TOLUENE
951.64
68
000108-88-3
69
BENZOFLUORANTHENE
949.82
70
056832-73-6
70
2-HEXANONE
943.72
71
000591-78-6
71
ACROLEIN
941.24
72
000107-02-8
72
2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN
938.30
64
001746-01-6
73
ZINC
929.40
73
007440-66-6
74
DIMETHYLARSINIC ACID
920.42
74
000075-60-5
75
DI(2-ETHYLHEXYL)PHTHALATE
919.65
75
000117-81-7
76
CHROMIUM
907.31
76
007440-47-3
77
1,1-DICHLOROETHENE
896.92
79
000075-35-4
78
NAPHTHALENE
896.68
77
000091-20-3
79
AROCLOR 1262
893.33
NEW
037324-23-5
80
METHYLENE CHLORIDE
888.52
78
000075-09-2
81
AROCLOR 1240
886.53
80
071328-89-7
82
2,4,6-TRINITROTOLUENE
877.53
81
000118-96-7
83
2,4,6-TRICHLOROPHENOL
875.06
87
000088-06-2
84
GAMMA-CHLORDENE
869.56
175
056641-38-4
85
2,4-DINITROPHENOL
868.88
83
000051-28-5
86
BROMODICHLOROETHANE
868.28
84
000683-53-4
87
1,2-DICHLOROETHANE
868.24
82
000107-06-2
88
HYDRAZINE
862.68
86
000302-01-2
89
BIS(2-CHLOROETHYL) ETHER
858.22
85
000111-44-4
90
THIOCYANATE
847.54
88
000302-04-5
91
HEXACHLOROBENZENE
844.79
100
000118-74-1
92
ASBESTOS
843.81
89
001332-21-4
93
CYCLOTRIMETHYLENETRINITRAMINE (RDX)
840.67
92
000121-82-4
94
CHLORINE
838.86
96
007782-50-5
95
1,1,1-TRICHLOROETHANE
838.61
90
000071-55-6
96
2,4-DINITROTOLUENE
834.45
101
000121-14-2
97
URANIUM
834.01
94
007440-61-1
98
RADIUM-226
833.83
95
013982-63-3
99
ETHYLBENZENE
833.62
91
000100-41-4
100
ETHION
832.47
97
000563-12-2
101
RADIUM
828.32
98
007440-14-4
102
THORIUM
825.74
99
007440-29-1
103
4,6-DINITRO-O-CRESOL
824.39
93
000534-52-1
104
RADON
818.59
104
010043-92-2
105
PENTACHLOROBIPHENYL
817.89
NEW
025429-29-2
106
1,3,5-TRINITROBENZENE
817.85
111
000099-35-4
107
RADIUM-228
815.49
107
015262-20-1
108
CHLOROBENZENE
815.45
105
000108-90-7
109
THORIUM-230
814.97
108
014269-63-7
110
BARIUM
814.90
102
007440-39-3
111
N-NITROSODI-N-PROPYLAMINE
814.43
112
000621-64-7
112
URANIUM-235
813.99
109
015117-96-1
113
URANIUM-234
812.53
113
013966-29-5
114
DIAZINON
812.35
114
000333-41-5
115
FLUORANTHENE
811.22
106
000206-44-0
116
THORIUM-228
809.61
115
014274-82-9
117
RADON-222
809.58
116
014859-67-7
118
HEXACHLOROCYCLOHEXANE, ALPHA-
807.65
110
000319-84-6
119
METHYLMERCURY
807.18
120
022967-92-6
120
POLONIUM-210
806.51
121
013981-52-7
120
STRONTIUM-90
806.51
118
010098-97-2
122
PLUTONIUM-239
806.47
123
015117-48-3
123
PLUTONIUM-238
806.29
124
013981-16-3
124
COAL TARS
806.25
122
008007-45-2
125
CHRYSOTILE ASBESTOS
806.06
119
012001-29-5
126
LEAD-210
806.02
126
014255-04-0
127
CHLORPYRIFOS
805.80
125
002921-88-2
128
PLUTONIUM
804.83
131
007440-07-5
129
RADON-220
804.75
128
022481-48-7
130
AMERICIUM-241
804.12
127
086954-36-1
131
MANGANESE
804.07
138
007439-96-5
132
IODINE-131
803.59
130
010043-66-0
132
TRIBUTYLTIN
803.59
135
000688-73-3
134
HYDROGEN CYANIDE
803.09
139
000074-90-8
135
GUTHION
802.39
134
000086-50-0
136
NEPTUNIUM-237
802.17
132
013994-20-2
137
PLUTONIUM-240
801.68
135
014119-33-6
137
IODINE-129
801.68
NEW
015046-84-1
137
CHLORDECONE
801.68
135
000143-50-0
140
CHRYSENE
801.36
117
000218-01-9
141
COPPER
799.94
129
007440-50-8
142
S,S,S-TRIBUTYL PHOSPHOROTRITHIOATE
796.31
140
000078-48-8
143
BROMINE
787.63
141
007726-95-6
144
POLYBROMINATED BIPHENYLS
787.58
142
067774-32-7
145
DICOFOL
786.09
143
000115-32-2
146
PARATHION
782.82
145
000056-38-2
147
SELENIUM
781.84
144
007782-49-2
148
1,1,2,2-TETRACHLOROETHANE
781.51
103
000079-34-5
149
HEXACHLOROCYCLOHEXANE, TECH. GRADE
773.58
146
000608-73-1
150
N-NITROSODIMETHYLAMINE
772.84
237
000062-75-9
151
1,2,3-TRICHLOROBENZENE
771.10
148
000087-61-6
152
TRICHLOROFLUOROETHANE
769.24
149
027154-33-2
153
TRIFLURALIN
768.72
150
001582-09-8
154
DDD, O,P'-
767.80
152
000053-19-0
155
4,4'-METHYLENEBIS(2-CHLOROANILINE)
765.16
151
000101-14-4
156
HEXACHLORODIBENZO-P-DIOXIN
759.10
153
034465-46-8
157
HEPTACHLORODIBENZO-P-DIOXIN
753.17
154
037871-00-4
158
PENTACHLOROBENZENE
751.95
147
000608-93-5
159
2-METHYLNAPHTHALENE
750.45
155
000091-57-6
160
NITROGEN DIOXIDE
747.82
233
010102-44-0
161
AMMONIA
746.01
160
007664-41-7
162
1,1-DICHLOROETHANE
741.30
156
000075-34-3
163
1,1,2-TRICHLOROETHANE
732.35
157
000079-00-5
164
1,4-DICHLOROBENZENE
731.32
161
000106-46-7
165
ACENAPHTHENE
730.35
158
000083-32-9
166
TRICHLOROETHANE
724.42
164
025323-89-1
167
1,2,3,4,6,7,8,9-OCTACHLORODIBENZOFURAN
723.92
159
039001-02-0
168
HEXACHLOROCYCLOPENTADIENE
718.28
165
000077-47-4
169
HEPTACHLORODIBENZOFURAN
717.32
163
038998-75-3
170
1,2-DIPHENYLHYDRAZINE
712.62
166
000122-66-7
171
2,3,4,7,8-PENTACHLORODIBENZOFURAN
709.06
171
057117-31-4
172
TETRACHLOROBIPHENYL
707.33
168
026914-33-0
173
CRESOL, PARA-
707.09
169
000106-44-5
174
OXYCHLORDANE
706.99
170
027304-13-8
175
1,2-DICHLOROETHENE, TRANS-
703.86
167
000156-60-5
176
AMOSITE ASBESTOS
703.57
133
012172-73-5
177
CARBON DISULFIDE
703.21
174
000075-15-0
178
AMERICIUM
701.63
176
007440-35-9
178
HEPTACHLOROBIPHENYL
701.63
NEW
028655-71-2
178
PENTACHLOROBUTADIENE
701.63
NEW
055880-77-8
181
TETRACHLOROPHENOL
700.97
179
025167-83-3
182
1,2-DICHLOROBENZENE
700.89
178
000095-50-1
183
INDENO(1,2,3-CD)PYRENE
700.86
180
000193-39-5
184
HEXACHLORODIBENZOFURAN
699.32
172
055684-94-1
185
PALLADIUM
699.31
173
007440-05-3
186
PHENOL
698.68
162
000108-95-2
187
ACETONE
694.90
181
000067-64-1
188
CHLOROETHANE
693.46
182
000075-00-3
189
DIBENZOFURAN
691.84
177