Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content

1995 ATSDR Substance Priority List

1995 RANK SUBSTANCE NAME TOTAL POINTS 1993 RANK CAS RN
1 LEAD 1759.79 1 007439-92-1
2 ARSENIC 1630.49 2 007440-38-2
3 MERCURY 1504.37 3 007439-97-6
4 VINYL CHLORIDE 1384.58 5 000075-01-4
5 BENZENE 1373.97 4 000071-43-2
6 POLYCHLORINATED BIPHENYLS 1343.19 7 001336-36-3
7 CADMIUM 1319.83 6 007440-43-9
8 BENZO(A)PYRENE 1281.23 8 000050-32-8
9 CHLOROFORM 1258.71 9 000067-66-3
10 BENZO(B)FLUORANTHENE 1236.77 10 000205-99-2
11 DDT, P,P’- 1193.40 12 000050-29-3
12 AROCLOR 1260 1184.63 15 011096-82-5
13 TRICHLOROETHYLENE 1176.86 11 000079-01-6
14 AROCLOR 1254 1176.72 13 011097-69-1
15 CHROMIUM, HEXAVALENT 1158.55 19 018540-29-9
16 CHLORDANE 1155.62 21 000057-74-9
17 DIBENZO(A,H)ANTHRACENE 1133.55 18 000053-70-3
18 HEXACHLOROBUTADIENE 1130.14 14 000087-68-3
19 DDD, P,P’- 1127.48 25 000072-54-8
20 DIELDRIN 1125.84 20 000060-57-1
21 HEXACHLOROCYCLOHEXANE, GAMMA- 1122.03 22 000058-89-9
22 DDE, P,P’- 1119.19 16 000072-55-9
23 CREOSOTE 1118.69 26 008001-58-9
24 CYANIDE 1117.64 31 000057-12-5
25 AROCLOR 1242 1116.53 17 053469-21-9
26 BENZIDINE 1107.63 49 000092-87-5
27 AROCLOR 1248 1101.50 24 012672-29-6
28 TETRACHLOROETHYLENE 1096.45 23 000127-18-4
29 ALDRIN 1092.52 27 000309-00-2
30 PHOSPHORUS, WHITE 1076.92 34 007723-14-0
31 1,2-DIBROMOETHANE 1073.21 46 000106-93-4
32 TOXAPHENE 1066.44 32 008001-35-2
33 1,2-DIBROMO-3-CHLOROPROPANE 1063.36 119 000096-12-8
34 AROCLOR 1221 1054.70 38 011104-28-2
35 DISULFOTON 1050.43 36 000298-04-4
36 HEXACHLOROCYCLOHEXANE, BETA- 1050.07 28 000319-85-7
37 BENZO(A)ANTHRACENE 1047.31 35 000056-55-3
38 ENDRIN 1046.39 45 000072-20-8
39 HEPTACHLOR 1032.55 29 000076-44-8
40 DI-N-BUTYL PHTHALATE 1031.64 30 000084-74-2
41 MANGANESE 1030.42 50 007439-96-5
42 CARBON TETRACHLORIDE 1027.92 43 000056-23-5
43 AROCLOR 1016 1026.87 42 012674-11-2
44 HEXACHLOROCYCLOHEXANE, DELTA- 1026.20 37 000319-86-8
45 PENTACHLOROPHENOL 1014.80 51 000087-86-5
46 BERYLLIUM 1012.93 39 007440-41-7
47 BENZO(E)PYRENE 1012.71 67 000192-97-2
48 BENZOFLUORANTHENE 1012.01 150 056832-73-6
49 NICKEL 1006.65 47 007440-02-0
50 ENDOSULFAN SULFATE 1004.54 40 001031-07-8
51 METHOXYCHLOR 1003.56 55 000072-43-5
52 ENDOSULFAN, ALPHA 1003.41 33 000959-98-8
53 3,3′-DICHLOROBENZIDINE 994.35 58 000091-94-1
54 HEPTACHLOR EPOXIDE 988.65 44 001024-57-3
55 TOLUENE 988.35 53 000108-88-3
56 ENDRIN KETONE 983.10 66 053494-70-5
57 BENZO(A)FLUORANTHENE 981.48 60 000203-33-8
58 ENDOSULFAN 980.35 59 000115-29-7
59 DIBROMOCHLOROPROPANE 975.09 57 067708-83-2
60 AROCLOR 1232 972.49 62 011141-16-5
61 ENDOSULFAN, BETA 970.76 41 033213-65-9
62 TRANS-CHLORDANE 970.34 54 005103-74-2
63 AROCLOR 969.46 New 012767-79-2
64 ENDRIN ALDEHYDE 967.87 145 007421-93-4
65 2-HEXANONE 966.34 68 000591-78-6
66 CIS-CHLORDANE 965.35 48 005103-71-9
67 METHANE 950.83 56 000074-82-8
68 ZINC 942.81 64 007440-66-6
69 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN 927.39 52 001746-01-6
70 DI(2-ETHYLHEXYL)PHTHALATE 923.25 63 000117-81-7
71 METHYLENE CHLORIDE 919.26 65 000075-09-2
72 CHROMIUM 914.86 61 007440-47-3
73 NAPHTHALENE 904.79 70 000091-20-3
74 1,1-DICHLOROETHENE 895.08 69 000075-35-4
75 OCTACHLORODIBENZO-P-DIOXIN 878.86 104 003268-87-9
76 1,1,1-TRICHLOROETHANE 875.62 72 000071-55-6
77 1,2-DICHLOROETHANE 871.09 71 000107-06-2
78 BIS(2-CHLOROETHYL) ETHER 864.30 77 000111-44-4
79 2,4-DINITROPHENOL 863.74 80 000051-28-5
80 ETHYLBENZENE 857.77 73 000100-41-4
81 PHENOL 857.17 129 000108-95-2
82 2,4,6-TRINITROTOLUENE 854.96 90 000118-96-7
83 XYLENES, TOTAL 854.50 79 001330-20-7
84 CHLORINE 847.96 208 007782-50-5
85 1,1,2,2-TETRACHLOROETHANE 845.73 105 000079-34-5
86 2,4,6-TRICHLOROPHENOL 842.81 84 000088-06-2
87 DIMETHYLARSINIC ACID 842.55 83 000075-60-5
88 1,2,3,4,6,7,8,9-OCTACHLORODIBENZOFURAN 836.75 102 039001-02-0
89 ASBESTOS 836.73 74 001332-21-4
90 4,6-DINITRO-O-CRESOL 833.31 97 000534-52-1
91 CHLOROBENZENE 830.93 85 000108-90-7
92 URANIUM 830.83 76 007440-61-1
93 RADIUM-226 830.50 81 013982-63-3
94 HEXACHLOROBENZENE 827.81 92 000118-74-1
95 BARIUM 825.88 101 007440-39-3
96 THORIUM 825.63 82 007440-29-1
97 RADIUM 825.54 78 007440-14-4
98 ETHION 824.90 194 000563-12-2
99 HEPTACHLORODIBENZO-P-DIOXIN 821.29 106 037871-00-4
100 RADON 818.89 87 010043-92-2
101 FLUORANTHENE 818.13 100 000206-44-0
102 THORIUM-230 817.36 88 014269-63-7
103 RADIUM-228 815.37 89 015262-20-1
104 DIAZINON 814.35 86 000333-41-5
105 2,4-DINITROTOLUENE 813.61 103 000121-14-2
106 N-NITROSODI-N-PROPYLAMINE 812.04 109 000621-64-7
107 HEXACHLOROCYCLOPENTADIENE 811.32 126 000077-47-4
108 THORIUM-228 810.80 91 014274-82-9
109 URANIUM-235 810.56 117 015117-96-1
110 COPPER 810.55 98 007440-50-8
111 URANIUM-234 810.28 117 013966-29-5
112 1,3,5-TRINITROBENZENE 809.98 108 000099-35-4
113 CHRYSENE 806.78 110 000218-01-9
114 CHRYSOTILE ASBESTOS 806.29 93 012001-29-5
115 OXYCHLORDANE 806.03 121 027304-13-8
116 RADON-222 805.72 94 014859-67-7
117 THORIUM-227 805.10 122 015623-47-9
118 HEXACHLOROCYCLOHEXANE, ALPHA- 804.94 99 000319-84-6
119 CESIUM-137 804.88 119 010045-97-3
120 CHLORPYRIFOS 804.58 115 002921-88-2
121 RADIUM-224 804.57 116 013233-32-4
121 THORON (RADON-220) 804.57 96 022481-48-7
123 METHYLMERCURY 804.55 94 022967-92-6
124 PLUTONIUM-238 804.31 185 013981-16-3
125 BISMUTH-212 803.42 New 014913-49-6
125 LEAD-212 803.42 New 015092-94-1
125 RADIUM-225 803.42 New 013981-53-8
128 AMOSITE ASBESTOS 802.86 >New 012172-73-5
129 PLUTONIUM-239 802.58 189 015117-48-3
129 POTASSIUM-40 802.58 124 013966-00-2
131 HEPTACHLORODIBENZOFURAN 801.69 111 038998-75-3
132 TETRACHLOROPHENOL 800.57 161 025167-83-3
133 TRICHLOROETHANE 792.22 137 025323-89-1
134 POLYBROMINATED BIPHENYLS 784.14 128 067774-32-7
135 SELENIUM 778.03 113 007782-49-2
136 DICOFOL 777.08 107 000115-32-2
137 POLONIUM-210 773.93 179 013981-52-7
138 4-AMINOBIPHENYL 770.48 New 000092-67-1
139 1,1-DICHLOROETHANE 766.23 114 000075-34-3
140 HEXACHLOROCYCLOHEXANE, TECHNICAL GRADE 765.08 134 000608-73-1
141 AROCLOR 1240 764.92 123 071328-89-7
142 PARATHION 764.62 138 000056-38-2
143 TREFLAN (TRIFLURALIN) 759.69 146 001582-09-8
144 PENTACHLOROBENZENE 759.45 131 000608-93-5
145 4,4′-METHYLENEBIS(2-CHLOROANILINE) 755.87 132 000101-14-4
146 HEXACHLORODIBENZO-P-DIOXIN 750.04 130 034465-46-8
147 AMMONIA 748.67 151 007664-41-7
148 COBALT 745.15 136 007440-48-4
149 1,2-DICHLOROETHENE, TRANS- 744.89 127 000156-60-5
150 ACENAPHTHENE 744.84 140 000083-32-9
151 ACETONE 744.43 144 000067-64-1
152 CARBON DISULFIDE 742.75 158 000075-15-0
153 HEXACHLORODIBENZOFURAN 739.95 133 055684-94-1
154 2-METHYLNAPHTHALENE 732.21 141 000091-57-6
155 1,1,2-TRICHLOROETHANE 714.91 143 000079-00-5
156 1,4-DICHLOROBENZENE 710.36 142 000106-46-7
157 1,2-DICHLOROBENZENE 708.36 149 000095-50-1
158 1,2-DIPHENYLHYDRAZINE 698.89 154 000122-66-7
159 HYDROGEN SULFIDE 693.51 183 007783-06-4
160 CHLOROETHANE 687.50 147 000075-00-3
161 INDENO(1,2,3-CD)PYRENE 684.13 159 000193-39-5
162 2,4-DIMETHYLPHENOL 681.22 152 000105-67-9
163 2,4,5-TRICHLOROPHENOL 679.02 139 000095-95-4
164 ALUMINUM 677.01 163 007429-90-5
165 ACROLEIN 672.32 135 000107-02-8
166 TIN 670.03 157 007440-31-5
167 CHLOROTOLUENE 668.62 260 025168-05-2
168 2-BUTANONE 666.13 168 000078-93-3
169 HEXANE, N- 662.34 182 000110-54-3
170 BUTYL BENZYL PHTHALATE 655.48 156 000085-68-7
171 HEXACHLOROETHANE 646.83 181 000067-72-1
172 CHLOROMETHANE 642.32 166 000074-87-3
173 NITRITE 635.61 228 014797-65-0
174 PERYLENE 632.48 164 000198-55-0
175 TETRACHLORODIBENZO-P-DIOXIN 631.97 148 041903-57-5
176 VANADIUM 631.82 178 007440-62-2
177 HYDRAZINE 630.76 165 000302-01-2
178 N-NITROSODIPHENYLAMINE 627.82 162 000086-30-6
179 COAL TAR PITCH 626.12 171 065996-93-2
180 TITANIUM 621.57 223 007440-32-6
181 PENTACHLORODIBENZOFURAN 621.56 155 030402-15-4
182 PENTACHLORODIBENZO-P-DIOXIN 619.82 153 036088-22-9
183 LEAD-210 619.48 169 014255-04-0
184 1,2,3,4,6,7,8-HEPTACHLORODIBENZO-P-DIOXIN 618.98 309 035822-46-9
185 SILVER 617.99 173 007440-22-4
186 TETRACHLORODIBENZOFURAN 617.82 167 030402-14-3
187 KEPONE 617.76 170 000143-50-0
188 ARSENIC TRIOXIDE 616.88 177 001327-53-3
188 TRITIUM 616.88 172 010028-17-8
190 2,3,7,8-TETRACHLORODIBENZOFURAN 616.37 160 051207-31-9
191 GUTHION 614.57 180 000086-50-0
192 SODIUM ARSENITE 614.00 174 007784-46-5
193 1,2,4-TRICHLOROBENZENE 613.22 176 000120-82-1
194 ARSENIC ACID 612.54 184 007778-39-4
195 CHROMIC ACID 612.36 271 007738-94-5
196 MOLYBDENUM 611.96 227 007439-98-7
197 2,3,4,7,8-PENTACHLORODIBENZOFURAN 610.82 New 057117-31-4
198 1,2-DICHLOROETHYLENE 610.74 204 000540-59-0
199 PHENANTHRENE 610.34 188 000085-01-8
200 MERCURIC CHLORIDE 610.24 New 007487-94-7
200 TETRACHLOROBIPHENYL 610.24 124 026914-33-0
202 1,3-DICHLOROBENZENE 610.16 195 000541-73-1
203 NONACHLOR, TRANS- 608.04 285 039765-80-5
204 DINITROTOLUENE 607.76 261 025321-14-6
205 ARSINE 607.63 186 007784-42-1
205 COBALT-60 607.63 186 010198-40-0
207 CARBOPHENOTHION 607.06 189 000786-19-6
207 CHLORDENE 607.06 189 003734-48-3
209 PLUTONIUM 606.48 192 007440-07-5
209 URANIUM-233 606.48 192 013968-55-3
211 2-CHLOROPHENOL 606.43 202 000095-57-8
212 N-NITROSODIMETHYLAMINE 604.76 206 000062-75-9
213 NONACHLOR, CIS- 604.58 286 005103-73-1
214 NITRATE 604.58 214 014797-55-8
215 PHORATE 603.73 300 000298-02-2
216 BROMOFORM 603.03 209 000075-25-2
217 NALED 602.86 215 000300-76-5
218 BROMODICHLOROETHANE 602.58 196 000683-53-4
218 DIBENZOFURANS, CHLORINATED 602.58 New 042934-53-2
218 2,3,4,5-TETRACHLOROPHENOL 602.58 289 004901-51-3
218 TRICHLOROFLUOROETHANE 602.58 New 027154-33-2
218 TUNGSTEN 602.58 289 007440-33-7
223 STRONTIUM-90 602.30 197 010098-97-2
224 DICHLORVOS 602.01 217 000062-73-7
224 NITROGEN DIOXIDE 602.01 New 010102-44-0
224 PALLADIUM 602.01 New 007440-05-3
227 CARBON-14 601.73 198 014762-75-5
227 SODIUM-22 601.73 198 013966-32-0
227 SULFUR-35 601.73 198 015117-53-0
230 CYCLOTRIMETHYLENETRINITRAMINE (RDX) 601.38 213 000121-82-4
231 CHLORODIFLUOROMETHANE 597.80 236 000075-45-6
232 2,4-DICHLOROPHENOL 594.13 210 000120-83-2
233 1,2-DICHLOROPROPANE 585.43 219 000078-87-5
234 FLUORINE 583.71 211 007782-41-4
235 DICHLOROBENZENE 583.66 203 025321-22-6
236 1,2,3,4,6,7,8-HEPTACHLORODIBENZOFURAN 579.36 256 067562-39-4
237 FORMALDEHYDE 578.95 221 000050-00-0
238 PYRENE 575.03 201 000129-00-0
239 CHLORODIBROMOMETHANE 572.00 207 000124-48-1
240 ANTIMONY 571.80 212 007440-36-0
241 CALCIUM HYPOCHLORITE 571.63 301 007778-54-3
242 2,3,4,6-TETRACHLOROPHENOL 571.05 217 000058-90-2
243 2,4-D ACID 570.52 222 000094-75-7
244 ETHYL ETHER 562.89 225 000060-29-7
245 DICHLOROETHANE 560.71 220 001300-21-6
246 FLUORIDE ION 559.36 240 016984-48-8
247 1,3-DICHLOROPROPENE, CIS- 553.52 231 010061-01-5
248 DIBENZOTHIOPHENE 551.32 205 000132-65-0
249 2,6-DINITROTOLUENE 546.45 224 000606-20-2
250 METHYL ISOBUTYL KETONE 546.07 230 000108-10-1
251 TETRACHLOROETHANE 545.44 226 025322-20-7
252 4-NITROPHENOL 544.72 216 000100-02-7
253 TRICHLOROBENZENE 541.44 232 012002-48-1
254 CRESOL, PARA- 540.17 229 000106-44-5
255 METHYL-T-BUTYL ETHER 540.04 234 001634-04-4
256 STYRENE 535.63 241 000100-42-5
257 METHYL PARATHION 528.15 248 000298-00-0
258 FLUORENE 525.09 237 000086-73-7
259 1-METHYLNAPHTHALENE 524.94 255 000090-12-0
260 1,4-DIOXANE 523.45 245 000123-91-1
261 ANTHRACENE 522.48 235 000120-12-7
262 SEVIN 520.20 340 000063-25-2
263 METHYLNAPHTHALENE 517.80 233 001321-94-4
264 1,3-DICHLOROPROPENE, TRANS- 515.78 238 010061-02-6
265 2,4,5-TP ACID (SILVEX) 514.20 253 000093-72-1
266 MALATHION 507.53 239 000121-75-5
267 O-XYLENE 504.89 242 000095-47-6
268 1,3-DINITROBENZENE 498.45 275 000099-65-0
269 1,2,3-TRICHLOROBENZENE 488.99 334 000087-61-6
270 PYRIDINE 486.03 307 000110-86-1
271 1,2,3-TRICHLOROPROPANE 484.62 330 000096-18-4
272 1,2-DICHLOROETHENE, CIS- 483.87 265 000156-59-2
273 METHYL METHACRYLATE 483.21 270 000080-62-6
274 CARBAZOLE 479.74 246 000086-74-8
275 DIETHYL PHTHALATE 472.34 243 000084-66-2
TOP