1993 ATSDR Substance Priority List
1993 RANK | SUBSTANCE NAME | TOTAL POINTS | 1992 RANK | CAS RN |
---|---|---|---|---|
1 | LEAD | 1689.94 | 1 | 007439-92-1 |
2 | ARSENIC | 1557.86 | 2 | 007440-38-2 |
3 | MERCURY | 1434.71 | 3 | 007439-97-6 |
4 | BENZENE | 1332.28 | 5 | 000071-43-2 |
5 | VINYL CHLORIDE | 1327.85 | 4 | 000075-01-4 |
6 | CADMIUM | 1283.37 | 6 | 007440-43-9 |
7 | POLYCHLORINATED BIPHENYLS | 1252.25 | 7 | 001336-36-3 |
8 | BENZO(A)PYRENE | 1223.21 | 9 | 000050-32-8 |
9 | CHLOROFORM | 1216.38 | 8 | 000067-66-3 |
10 | BENZO(B)FLUORANTHENE | 1192.74 | 11 | 000205-99-2 |
11 | TRICHLOROETHYLENE | 1163.39 | 10 | 000079-01-6 |
12 | DDT, P,P’- | 1146.37 | 12 | 000050-29-3 |
13 | AROCLOR 1254 | 1131.10 | 14 | 011097-69-1 |
14 | HEXACHLOROBUTADIENE | 1124.34 | 32 | 000087-68-3 |
15 | AROCLOR 1260 | 1123.06 | 13 | 011096-82-5 |
16 | DDE, P,P’- | 1092.82 | 15 | 000072-55-9 |
17 | AROCLOR 1242 | 1091.67 | 25 | 053469-21-9 |
18 | DIBENZO(A,H)ANTHRACENE | 1083.44 | 22 | 000053-70-3 |
19 | CHROMIUM, HEXAVALENT | 1083.36 | 18 | 018540-29-9 |
20 | DIELDRIN | 1082.13 | 17 | 000060-57-1 |
21 | CHLORDANE | 1080.16 | 20 | 000057-74-9 |
22 | HEXACHLOROCYCLOHEXANE, GAMMA- | 1076.30 | 24 | 000058-89-9 |
23 | TETRACHLOROETHYLENE | 1069.69 | 21 | 000127-18-4 |
24 | AROCLOR 1248 | 1066.44 | 19 | 012672-29-6 |
25 | DDD, P,P’- | 1060.45 | 16 | 000072-54-8 |
26 | CREOSOTE | 1055.03 | 23 | 008001-58-9 |
27 | ALDRIN | 1043.36 | 30 | 000309-00-2 |
28 | HEXACHLOROCYCLOHEXANE, BETA- | 1031.73 | 29 | 000319-85-7 |
29 | HEPTACHLOR | 1028.80 | 27 | 000076-44-8 |
30 | DI-N-BUTYL PHTHALATE | 1027.64 | 31 | 000084-74-2 |
31 | CYANIDE | 1026.15 | 28 | 000057-12-5 |
32 | TOXAPHENE | 1024.00 | 40 | 008001-35-2 |
33 | ENDOSULFAN, ALPHA | 1021.59 | 84 | 000959-98-8 |
34 | PHOSPHORUS, WHITE | 1016.68 | 78 | 007723-14-0 |
35 | BENZO(A)ANTHRACENE | 1004.84 | 38 | 000056-55-3 |
36 | DISULFOTON | 1003.17 | 42 | 000298-04-4 |
37 | HEXACHLOROCYCLOHEXANE, DELTA- | 1002.94 | 41 | 000319-86-8 |
38 | AROCLOR 1221 | 995.90 | 33 | 011104-28-2 |
39 | BERYLLIUM | 993.39 | 39 | 007440-41-7 |
40 | ENDOSULFAN SULFATE | 991.14 | 48 | 001031-07-8 |
41 | ENDOSULFAN, BETA | 990.80 | 53 | 033213-65-9 |
42 | AROCLOR 1016 | 990.69 | 34 | 012674-11-2 |
43 | CARBON TETRACHLORIDE | 989.19 | 35 | 000056-23-5 |
44 | HEPTACHLOR EPOXIDE | 985.88 | 44 | 001024-57-3 |
45 | ENDRIN | 984.53 | 36 | 000072-20-8 |
46 | 1,2-DIBROMOETHANE | 984.19 | 54 | 000106-93-4 |
47 | NICKEL | 973.22 | 45 | 007440-02-0 |
48 | CIS-CHLORDANE | 972.28 | 112 | 005103-71-9 |
49 | BENZIDINE | 971.03 | 55 | 000092-87-5 |
50 | MANGANESE | 970.52 | 47 | 007439-96-5 |
51 | PENTACHLOROPHENOL | 966.15 | 46 | 000087-86-5 |
52 | 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN | 965.63 | 26 | 001746-01-6 |
53 | TOLUENE | 963.37 | 37 | 000108-88-3 |
54 | TRANS-CHLORDANE | 960.93 | 126 | 005103-74-2 |
55 | METHOXYCHLOR | 950.43 | 56 | 000072-43-5 |
56 | METHANE | 949.25 | 52 | 000074-82-8 |
57 | DIBROMOCHLOROPROPANE | 946.86 | 49 | 067708-83-2 |
58 | 3,3′-DICHLOROBENZIDINE | 943.11 | 57 | 000091-94-1 |
59 | ENDOSULFAN | 942.11 | 61 | 000115-29-7 |
60 | BENZO(A)FLUORANTHENE | 934.00 | 43 | 000203-33-8 |
61 | CHROMIUM | 926.16 | 60 | 007440-47-3 |
62 | AROCLOR 1232 | 926.15 | 104 | 011141-16-5 |
63 | DI(2-ETHYLHEXYL)PHTHALATE | 923.99 | 62 | 000117-81-7 |
64 | ZINC | 917.59 | 58 | 007440-66-6 |
65 | METHYLENE CHLORIDE | 908.28 | 59 | 000075-09-2 |
66 | ENDRIN KETONE | 906.62 | 63 | 053494-70-5 |
67 | BENZO(E)PYRENE | 904.23 | 106 | 000192-97-2 |
68 | 2-HEXANONE | 884.83 | 65 | 000591-78-6 |
69 | 1,1-DICHLOROETHENE | 868.43 | 68 | 000075-35-4 |
70 | NAPHTHALENE | 866.26 | 67 | 000091-20-3 |
71 | 1,2-DICHLOROETHANE | 865.83 | 64 | 000107-06-2 |
72 | 1,1,1-TRICHLOROETHANE | 858.23 | 66 | 000071-55-6 |
73 | ETHYLBENZENE | 845.99 | 69 | 000100-41-4 |
74 | ASBESTOS | 837.20 | 73 | 001332-21-4 |
75 | ALPHA RADIATION | 832.66 | 71 | 012587-46-1 |
76 | URANIUM | 827.02 | 75 | 007440-61-1 |
77 | BIS(2-CHLOROETHYL) ETHER | 826.00 | 82 | 000111-44-4 |
78 | RADIUM | 825.96 | 76 | 007440-14-4 |
79 | XYLENES, TOTAL | 825.94 | 72 | 001330-20-7 |
80 | 2,4-DINITROPHENOL | 822.62 | 94 | 000051-28-5 |
81 | RADIUM-226 | 822.02 | 80 | 013982-63-3 |
82 | THORIUM | 820.96 | 81 | 007440-29-1 |
83 | DIMETHYLARSINIC ACID | 818.07 | 50 | 000075-60-5 |
84 | 2,4,6-TRICHLOROPHENOL | 816.35 | 99 | 000088-06-2 |
85 | CHLOROBENZENE | 814.88 | 70 | 000108-90-7 |
86 | DIAZINON | 813.93 | 109 | 000333-41-5 |
87 | RADON | 813.71 | 85 | 010043-92-2 |
88 | THORIUM-230 | 810.81 | 89 | 014269-63-7 |
89 | RADIUM-228 | 810.18 | 117 | 015262-20-1 |
90 | 2,4,6-TRINITROTOLUENE | 807.87 | 79 | 000118-96-7 |
91 | THORIUM-228 | 806.03 | 122 | 014274-82-9 |
92 | HEXACHLOROBENZENE | 805.51 | 86 | 000118-74-1 |
93 | CHRYSOTILE ASBESTOS | 804.56 | 125 | 012001-29-5 |
94 | METHYLMERCURY | 804.35 | 171 | 022967-92-6 |
94 | RADON-222 | 804.35 | New | 014859-67-7 |
96 | THORON (RADON-220) | 804.13 | New | 022481-48-7 |
97 | 4,6-DINITRO-O-CRESOL | 802.85 | 98 | 000534-52-1 |
98 | COPPER | 801.98 | 87 | 007440-50-8 |
99 | HEXACHLOROCYCLOHEXANE, ALPHA- | 801.96 | 90 | 000319-84-6 |
100 | FLUORANTHENE | 801.88 | 88 | 000206-44-0 |
101 | BARIUM | 801.52 | 96 | 007440-39-3 |
102 | OCTACHLORODIBENZOFURAN | 800.66 | 74 | 039001-02-0 |
103 | 2,4-DINITROTOLUENE | 797.16 | 92 | 000121-14-2 |
104 | OCTACHLORODIBENZO-P-DIOXIN | 796.36 | 77 | 003268-87-9 |
105 | 1,1,2,2-TETRACHLOROETHANE | 795.11 | 83 | 000079-34-5 |
106 | HEPTACHLORODIBENZO-P-DIOXIN | 792.71 | 133 | 037871-00-4 |
107 | DICOFOL | 789.09 | 225 | 000115-32-2 |
108 | 1,3,5-TRINITROBENZENE | 788.92 | 95 | 000099-35-4 |
109 | N-NITROSODI-N-PROPYLAMINE | 787.18 | 97 | 000621-64-7 |
110 | CHRYSENE | 784.78 | 102 | 000218-01-9 |
111 | HEPTACHLORODIBENZOFURAN | 779.91 | 141 | 038998-75-3 |
112 | BETA RADIATION | 779.35 | 105 | 012587-47-2 |
113 | SELENIUM | 772.12 | 100 | 007782-49-2 |
114 | 1,1-DICHLOROETHANE | 771.48 | 91 | 000075-34-3 |
115 | CHLORPYRIFOS | 769.37 | 166 | 002921-88-2 |
116 | RADIUM-224 | 768.12 | 130 | 013233-32-4 |
117 | URANIUM-234 | 764.99 | 163 | 013966-29-5 |
117 | URANIUM-235 | 764.99 | 159 | 015117-96-1 |
119 | CESIUM-137 | 761.87 | 176 | 010045-97-3 |
119 | 1,2-DIBROMO-3-CHLOROPROPANE | 761.87 | 114 | 000096-12-8 |
121 | OXYCHLORDANE | 761.25 | 169 | 027304-13-8 |
122 | THORIUM-227 | 760.00 | New | 015623-47-9 |
123 | AROCLOR 1240 | 759.44 | New | 071328-89-7 |
124 | POTASSIUM-40 | 759.37 | New | 013966-00-2 |
124 | TETRACHLOROBIPHENYL | 759.37 | New | 026914-33-0 |
126 | HEXACHLOROCYCLOPENTADIENE | 756.52 | 127 | 000077-47-4 |
127 | 1,2-DICHLOROETHENE, TRANS- | 756.42 | 107 | 000156-60-5 |
128 | POLYBROMINATED BIPHENYLS | 755.93 | 103 | 067774-32-7 |
129 | PHENOL | 755.84 | 101 | 000108-95-2 |
130 | HEXACHLORODIBENZO-P-DIOXIN | 752.13 | 144 | 034465-46-8 |
131 | PENTACHLOROBENZENE | 750.07 | 195 | 000608-93-5 |
132 | 4,4′-METHYLENEBIS(2-CHLOROANILINE) | 745.87 | 93 | 000101-14-4 |
133 | HEXACHLORODIBENZOFURAN | 744.60 | 145 | 055684-94-1 |
134 | HEXACHLOROCYCLOHEXANE, TECHNICAL GRADE | 731.73 | 137 | 000608-73-1 |
135 | ACROLEIN | 722.28 | 108 | 000107-02-8 |
136 | COBALT | 719.74 | 132 | 007440-48-4 |
137 | TRICHLOROETHANE | 714.13 | 149 | 025323-89-1 |
138 | PARATHION | 713.79 | 136 | 000056-38-2 |
139 | 2,4,5-TRICHLOROPHENOL | 713.30 | 196 | 000095-95-4 |
140 | ACENAPHTHENE | 711.69 | 135 | 000083-32-9 |
141 | 2-METHYLNAPHTHALENE | 711.34 | 142 | 000091-57-6 |
142 | 1,4-DICHLOROBENZENE | 698.02 | 138 | 000106-46-7 |
143 | 1,1,2-TRICHLOROETHANE | 696.79 | 150 | 000079-00-5 |
144 | ACETONE | 692.98 | 134 | 000067-64-1 |
145 | ENDRIN ALDEHYDE | 690.55 | 110 | 007421-93-4 |
146 | TREFLAN (TRIFLURALIN) | 687.57 | New | 001582-09-8 |
147 | CHLOROETHANE | 681.50 | 139 | 000075-00-3 |
148 | TETRACHLORODIBENZO-P-DIOXIN | 681.45 | 151 | 041903-57-5 |
149 | 1,2-DICHLOROBENZENE | 681.00 | 143 | 000095-50-1 |
150 | BENZOFLUORANTHENE | 679.03 | 111 | 056832-73-6 |
151 | AMMONIA | 677.38 | 147 | 007664-41-7 |
152 | 2,4-DIMETHYLPHENOL | 675.10 | 152 | 000105-67-9 |
153 | PENTACHLORODIBENZO-P-DIOXIN | 674.91 | 140 | 036088-22-9 |
154 | 1,2-DIPHENYLHYDRAZINE | 674.50 | 153 | 000122-66-7 |
155 | PENTACHLORODIBENZOFURAN | 671.26 | 154 | 030402-15-4 |
156 | BUTYL BENZYL PHTHALATE | 670.65 | 148 | 000085-68-7 |
157 | TIN | 669.52 | 157 | 007440-31-5 |
158 | CARBON DISULFIDE | 668.79 | 146 | 000075-15-0 |
159 | INDENO(1,2,3-CD)PYRENE | 666.03 | 156 | 000193-39-5 |
160 | 2,3,7,8-TETRACHLORODIBENZOFURAN | 663.30 | 177 | 051207-31-9 |
161 | TETRACHLOROPHENOL | 654.77 | 131 | 025167-83-3 |
162 | N-NITROSODIPHENYLAMINE | 654.73 | 170 | 000086-30-6 |
163 | ALUMINUM | 654.53 | 158 | 007429-90-5 |
164 | PERYLENE | 652.30 | 120 | 000198-55-0 |
165 | HYDRAZINE | 643.90 | 51 | 000302-01-2 |
166 | CHLOROMETHANE | 638.56 | 160 | 000074-87-3 |
167 | TETRACHLORODIBENZOFURAN | 633.33 | 155 | 030402-14-3 |
168 | 2-BUTANONE | 630.30 | 162 | 000078-93-3 |
169 | LEAD-210 | 630.23 | 180 | 014255-04-0 |
170 | KEPONE | 628.98 | 167 | 000143-50-0 |
171 | COAL TAR PITCH | 626.82 | 115 | 065996-93-2 |
172 | TRITIUM | 626.20 | 118 | 010028-17-8 |
173 | SILVER | 626.12 | 161 | 007440-22-4 |
174 | ARSENIC PENTOXIDE | 622.45 | 172 | 001303-28-2 |
174 | SODIUM ARSENITE | 622.45 | 121 | 007784-46-5 |
176 | 1,2,4-TRICHLOROBENZENE | 620.02 | 164 | 000120-82-1 |
177 | ARSENIC TRIOXIDE | 619.05 | 116 | 001327-53-3 |
178 | VANADIUM | 617.88 | 178 | 007440-62-2 |
179 | POLONIUM-210 | 617.80 | 174 | 013981-52-7 |
180 | GUTHION | 616.55 | 128 | 000086-50-0 |
181 | HEXACHLOROETHANE | 616.27 | 165 | 000067-72-1 |
182 | HEXANE, N- | 613.86 | 237 | 000110-54-3 |
183 | HYDROGEN SULFIDE | 613.54 | 191 | 007783-06-4 |
184 | ARSENIC ACID | 611.90 | 119 | 007778-39-4 |
185 | PLUTONIUM-238 | 611.27 | 175 | 013981-16-3 |
186 | ARSINE | 610.65 | 124 | 007784-42-1 |
186 | COBALT-60 | 610.65 | 182 | 010198-40-0 |
188 | PHENANTHRENE | 610.52 | 181 | 000085-01-8 |
189 | CARBOPHENOTHION | 610.02 | 128 | 000786-19-6 |
189 | CHLORDENE | 610.02 | 173 | 003734-48-3 |
189 | PLUTONIUM-239 | 610.02 | 186 | 015117-48-3 |
192 | PLUTONIUM | 609.40 | 187 | 007440-07-5 |
192 | URANIUM-233 | 609.40 | 184 | 013968-55-3 |
194 | ETHION | 605.40 | 210 | 000563-12-2 |
195 | 1,3-DICHLOROBENZENE | 604.61 | 168 | 000541-73-1 |
196 | BROMODICHLOROETHANE | 602.91 | 188 | 000683-53-4 |
197 | STRONTIUM-90 | 602.50 | 184 | 010098-97-2 |
198 | CARBON-14 | 601.87 | New | 014762-75-5 |
198 | SODIUM-22 | 601.87 | 179 | 013966-32-0 |
198 | SULFUR-35 | 601.87 | 183 | 015117-53-0 |
201 | PYRENE | 593.08 | 192 | 000129-00-0 |
202 | 2-CHLOROPHENOL | 590.44 | 251 | 000095-57-8 |
203 | DICHLOROBENZENE | 588.65 | 189 | 025321-22-6 |
204 | 1,2-DICHLOROETHYLENE | 587.13 | 194 | 000540-59-0 |
205 | DIBENZOTHIOPHENE | 583.82 | 544 | 000132-65-0 |
206 | N-NITROSODIMETHYLAMINE | 583.73 | 201 | 000062-75-9 |
207 | CHLORODIBROMOMETHANE | 583.52 | 190 | 000124-48-1 |
208 | CHLORINE | 581.23 | 197 | 007782-50-5 |
209 | BROMOFORM | 578.02 | 200 | 000075-25-2 |
210 | 2,4-DICHLOROPHENOL | 577.50 | 248 | 000120-83-2 |
211 | FLUORINE | 574.36 | 202 | 007782-41-4 |
212 | ANTIMONY | 574.02 | 234 | 007440-36-0 |
213 | CYCLOTRIMETHYLENETRINITRAMINE (RDX) | 567.35 | 198 | 000121-82-4 |
214 | NITRATE | 566.67 | 193 | 014797-55-8 |
215 | NALED | 560.00 | 233 | 000300-76-5 |
216 | 4-NITROPHENOL | 559.98 | 199 | 000100-02-7 |
217 | DICHLORVOS | 559.37 | New | 000062-73-7 |
217 | 2,3,4,6-TETRACHLOROPHENOL | 559.37 | 269 | 000058-90-2 |
219 | 1,2-DICHLOROPROPANE | 558.06 | 245 | 000078-87-5 |
220 | DICHLOROETHANE | 555.57 | 207 | 001300-21-6 |
221 | FORMALDEHYDE | 555.19 | 240 | 000050-00-0 |
222 | 2,4-D ACID | 554.87 | 219 | 000094-75-7 |
223 | TITANIUM | 551.69 | 298 | 007440-32-6 |
224 | 2,6-DINITROTOLUENE | 551.48 | 205 | 000606-20-2 |
225 | ETHYL ETHER | 551.36 | 208 | 000060-29-7 |
226 | TETRACHLOROETHANE | 550.95 | 252 | 025322-20-7 |
227 | MOLYBDENUM | 549.23 | 228 | 007439-98-7 |
228 | NITRITE | 547.17 | New | 014797-65-0 |
229 | CRESOL, PARA- | 546.52 | 209 | 000106-44-5 |
230 | METHYL ISOBUTYL KETONE | 538.43 | 231 | 000108-10-1 |
231 | 1,3-DICHLOROPROPENE, CIS- | 537.69 | 235 | 010061-01-5 |
232 | TRICHLOROBENZENE | 535.64 | 255 | 012002-48-1 |
233 | METHYLNAPHTHALENE | 532.25 | 258 | 001321-94-4 |
234 | METHYL-T-BUTYL ETHER | 528.32 | 239 | 001634-04-4 |
235 | ANTHRACENE | 526.34 | 236 | 000120-12-7 |
236 | CHLORODIFLUOROMETHANE | 525.44 | 297 | 000075-45-6 |
237 | FLUORENE | 520.30 | 244 | 000086-73-7 |
238 | 1,3-DICHLOROPROPENE, TRANS- | 519.16 | 305 | 010061-02-6 |
239 | MALATHION | 517.29 | 313 | 000121-75-5 |
240 | FLUORIDE ION | 516.58 | 241 | 016984-48-8 |
241 | STYRENE | 513.53 | 243 | 000100-42-5 |
242 | O-XYLENE | 513.21 | 216 | 000095-47-6 |
243 | DIETHYL PHTHALATE | 510.57 | 238 | 000084-66-2 |
244 | BIPHENYL | 504.54 | 351 | 000092-52-4 |
245 | 1,4-DIOXANE | 497.20 | 254 | 000123-91-1 |
246 | CARBAZOLE | 491.80 | 260 | 000086-74-8 |
247 | BENZO(K)FLUORANTHENE | 488.97 | 256 | 000207-08-9 |
248 | METHYL PARATHION | 488.02 | 247 | 000298-00-0 |
249 | DI-N-OCTYL PHTHALATE | 486.81 | 250 | 000117-84-0 |
250 | BENZOIC ACID | 484.90 | 249 | 000065-85-0 |
251 | 2-NITROPHENOL | 480.65 | 304 | 000088-75-5 |
252 | THALLIUM | 479.96 | 257 | 007440-28-0 |
253 | 2,4,5-TP ACID (SILVEX) | 477.74 | 242 | 000093-72-1 |
254 | ISOPROPANOL | 474.45 | 279 | 000067-63-0 |
255 | 1-METHYLNAPHTHALENE | 473.07 | 270 | 000090-12-0 |
256 | 1,2,3,4,6,7,8-HEPTACHLORODIBENZOFURAN | 461.80 | 221 | 067562-39-4 |
257 | TRICHLOROFLUOROMETHANE | 461.16 | 271 | 000075-69-4 |
258 | TRICHLOROPHENOL | 459.45 | 213 | 025167-82-2 |
259 | DICHLOROBROMOETHANE | 458.01 | 348 | 073506-91-9 |
260 | CHLOROTOLUENE | 455.05 | 204 | 025168-05-2 |
261 | DINITROTOLUENE | 454.80 | 206 | 025321-14-6 |
262 | BENZO(GHI)PERYLENE | 452.98 | 268 | 000191-24-2 |
263 | DIBENZOFURAN | 451.05 | 267 | 000132-64-9 |
264 | 2,3,5,6-TETRACHLOROPHENOL | 449.18 | 284 | 000935-95-5 |
265 | 1,2-DICHLOROETHENE, CIS- | 448.97 | 261 | 000156-59-2 |
266 | CRESOL, ORTHO- | 445.88 | 273 | 000095-48-7 |
267 | TRINITROPHENYLMETHYLNITRAMINE | 445.45 | 253 | 000479-45-8 |
268 | TETRAHYDROFURAN | 443.68 | 262 | 000109-99-9 |
269 | M-XYLENE | 442.80 | 264 | 000108-38-3 |
270 | METHYL METHACRYLATE | 441.01 | 357 | 000080-62-6 |
271 | CHROMIC ACID | 439.59 | 203 | 007738-94-5 |
272 | PICRIC ACID | 438.00 | 214 | 000088-89-1 |
273 | PENTACHLOROETHANE | 432.10 | 215 | 000076-01-7 |
274 | NITROBENZENE | 431.92 | 276 | 000098-95-3 |
275 | 1,3-DINITROBENZENE | 430.87 | 307 | 000099-65-0 |
Page last reviewed: May 7, 2014
Content source: Agency for Toxic Substances and Disease Registry