1999 ATSDR Substance Priority List
1999 RANK | SUBSTANCE NAME | TOTAL POINTS |
1997 RANK | CAS RN |
---|---|---|---|---|
1 | ARSENIC | 1641.13 | 1 | 007440-38-2 |
2 | LEAD | 1525.49 | 2 | 007439-92-1 |
3 | MERCURY | 1507.64 | 3 | 007439-97-6 |
4 | VINYL CHLORIDE | 1387.85 | 4 | 000075-01-4 |
5 | BENZENE | 1364.96 | 5 | 000071-43-2 |
6 | POLYCHLORINATED BIPHENYLS | 1352.69 | 6 | 001336-36-3 |
7 | CADMIUM | 1317.83 | 7 | 007440-43-9 |
8 | BENZO(A)PYRENE | 1295.56 | 8 | 000050-32-8 |
9 | POLYCYCLIC AROMATIC HYDROCARBONS | 1274.22 | 10 | 130498-29-2 |
10 | BENZO(B)FLUORANTHENE | 1262.86 | 9 | 000205-99-2 |
11 | CHLOROFORM | 1238.31 | 11 | 000067-66-3 |
12 | DDT, P,P'- | 1186.79 | 13 | 000050-29-3 |
13 | AROCLOR 1260 | 1182.49 | 14 | 011096-82-5 |
14 | AROCLOR 1254 | 1177.17 | 12 | 011097-69-1 |
15 | TRICHLOROETHYLENE | 1159.64 | 15 | 000079-01-6 |
16 | CHROMIUM, HEXAVALENT | 1151.62 | 16 | 018540-29-9 |
17 | DIBENZO(A,H)ANTHRACENE | 1151.04 | 17 | 000053-70-3 |
18 | DIELDRIN | 1140.86 | 18 | 000060-57-1 |
19 | HEXACHLOROBUTADIENE | 1129.27 | 19 | 000087-68-3 |
20 | DDE, P,P'- | 1126.36 | 22 | 000072-55-9 |
21 | CREOSOTE | 1124.19 | 21 | 008001-58-9 |
22 | CHLORDANE | 1123.93 | 20 | 000057-74-9 |
23 | BENZIDINE | 1115.29 | 23 | 000092-87-5 |
24 | ALDRIN | 1112.25 | 25 | 000309-00-2 |
25 | AROCLOR 1248 | 1110.58 | 27 | 012672-29-6 |
26 | CYANIDE | 1108.82 | 24 | 000057-12-5 |
27 | DDD, P,P'- | 1107.12 | 26 | 000072-54-8 |
28 | AROCLOR 1242 | 1104.26 | 29 | 053469-21-9 |
29 | PHOSPHORUS, WHITE | 1096.53 | 28 | 007723-14-0 |
30 | HEPTACHLOR | 1092.33 | 30 | 000076-44-8 |
31 | TETRACHLOROETHYLENE | 1079.84 | 33 | 000127-18-4 |
32 | TOXAPHENE | 1078.47 | 31 | 008001-35-2 |
33 | HEXACHLOROCYCLOHEXANE, GAMMA- | 1076.46 | 32 | 000058-89-9 |
34 | HEXACHLOROCYCLOHEXANE, BETA- | 1061.86 | 35 | 000319-85-7 |
35 | BENZO(A)ANTHRACENE | 1056.05 | 38 | 000056-55-3 |
36 | 1,2-DIBROMOETHANE | 1055.21 | 36 | 000106-93-4 |
37 | DISULFOTON | 1052.87 | 37 | 000298-04-4 |
38 | ENDRIN | 1043.85 | 39 | 000072-20-8 |
39 | BERYLLIUM | 1036.39 | 44 | 007440-41-7 |
40 | HEXACHLOROCYCLOHEXANE, DELTA- | 1035.67 | 41 | 000319-86-8 |
41 | AROCLOR 1221 | 1034.55 | 34 | 011104-28-2 |
42 | DI-N-BUTYL PHTHALATE | 1029.66 | 42 | 000084-74-2 |
43 | 1,2-DIBROMO-3-CHLOROPROPANE | 1026.97 | 43 | 000096-12-8 |
44 | PENTACHLOROPHENOL | 1024.00 | 45 | 000087-86-5 |
45 | AROCLOR 1016 | 1020.24 | 40 | 012674-11-2 |
46 | CARBON TETRACHLORIDE | 1019.73 | 46 | 000056-23-5 |
47 | HEPTACHLOR EPOXIDE | 1017.05 | 52 | 001024-57-3 |
48 | XYLENES, TOTAL | 1011.71 | 83 | 001330-20-7 |
49 | COBALT | 1010.56 | 47 | 007440-48-4 |
50 | ENDOSULFAN SULFATE | 1010.22 | 50 | 001031-07-8 |
51 | DDT, O,P'- | 1009.79 | NEW | 000789-02-6 |
52 | NICKEL | 1007.12 | 49 | 007440-02-0 |
53 | 3,3'-DICHLOROBENZIDINE | 1003.56 | 51 | 000091-94-1 |
54 | DIBROMOCHLOROPROPANE | 992.42 | 54 | 067708-83-2 |
55 | ENDOSULFAN, ALPHA | 991.88 | 48 | 000959-98-8 |
56 | ENDOSULFAN | 988.85 | 53 | 000115-29-7 |
57 | BENZO(K)FLUORANTHENE | 984.44 | 59 | 000207-08-9 |
58 | AROCLOR | 984.38 | 55 | 012767-79-2 |
59 | ENDRIN KETONE | 971.97 | 57 | 053494-70-5 |
60 | CIS-CHLORDANE | 969.93 | 62 | 005103-71-9 |
61 | 2-HEXANONE | 968.01 | 60 | 000591-78-6 |
62 | TOLUENE | 965.07 | 61 | 000108-88-3 |
63 | AROCLOR 1232 | 961.15 | 58 | 011141-16-5 |
64 | ENDOSULFAN, BETA | 960.22 | 56 | 033213-65-9 |
65 | METHANE | 959.61 | 63 | 000074-82-8 |
66 | TRANS-CHLORDANE | 956.10 | 64 | 005103-74-2 |
67 | 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN | 948.51 | 66 | 001746-01-6 |
68 | BENZOFLUORANTHENE | 947.12 | 71 | 056832-73-6 |
69 | ENDRIN ALDEHYDE | 944.52 | 84 | 007421-93-4 |
70 | ZINC | 931.94 | 65 | 007440-66-6 |
71 | DIMETHYLARSINIC ACID | 928.41 | 94 | 000075-60-5 |
72 | DI(2-ETHYLHEXYL)PHTHALATE | 924.69 | 67 | 000117-81-7 |
73 | CHROMIUM | 913.61 | 69 | 007440-47-3 |
74 | METHYLENE CHLORIDE | 903.26 | 70 | 000075-09-2 |
75 | NAPHTHALENE | 899.12 | 72 | 000091-20-3 |
76 | METHOXYCHLOR | 898.95 | 68 | 000072-43-5 |
77 | 1,1-DICHLOROETHENE | 894.62 | 73 | 000075-35-4 |
78 | AROCLOR 1240 | 884.91 | NEW | 071328-89-7 |
79 | BIS(2-CHLOROETHYL) ETHER | 869.57 | 76 | 000111-44-4 |
80 | 1,2-DICHLOROETHANE | 869.08 | 74 | 000107-06-2 |
81 | 2,4-DINITROPHENOL | 866.03 | 77 | 000051-28-5 |
82 | 2,4,6-TRINITROTOLUENE | 864.61 | 78 | 000118-96-7 |
83 | 2,4,6-TRICHLOROPHENOL | 860.94 | 82 | 000088-06-2 |
84 | CHLORINE | 852.04 | 152 | 007782-50-5 |
85 | CYCLOTRIMETHYLENETRINITRAMINE (RDX) | 851.76 | 75 | 000121-82-4 |
86 | 1,1,1-TRICHLOROETHANE | 850.10 | 79 | 000071-55-6 |
87 | ETHYLBENZENE | 848.03 | 81 | 000100-41-4 |
88 | 1,1,2,2-TETRACHLOROETHANE | 844.67 | 80 | 000079-34-5 |
89 | THIOCYANATE | 842.99 | 85 | 000302-04-5 |
90 | ASBESTOS | 841.68 | 86 | 001332-21-4 |
91 | 4,6-DINITRO-O-CRESOL | 836.74 | 87 | 000534-52-1 |
92 | URANIUM | 832.01 | 88 | 007440-61-1 |
93 | RADIUM | 830.22 | 90 | 007440-14-4 |
94 | RADIUM-226 | 829.87 | 91 | 013982-63-3 |
95 | HEXACHLOROBENZENE | 829.67 | 93 | 000118-74-1 |
96 | ETHION | 829.44 | 92 | 000563-12-2 |
97 | THORIUM | 824.80 | 95 | 007440-29-1 |
98 | CHLOROBENZENE | 823.89 | 89 | 000108-90-7 |
99 | BARIUM | 822.46 | 98 | 007440-39-3 |
100 | 2,4-DINITROTOLUENE | 821.29 | 99 | 000121-14-2 |
101 | FLUORANTHENE | 820.84 | 96 | 000206-44-0 |
102 | RADON | 817.31 | 97 | 010043-92-2 |
103 | RADIUM-228 | 813.44 | 102 | 015262-20-1 |
104 | THORIUM-230 | 813.18 | 101 | 014269-63-7 |
105 | DIAZINON | 813.17 | 100 | 000333-41-5 |
106 | BROMINE | 813.01 | 161 | 007726-95-6 |
107 | 1,3,5-TRINITROBENZENE | 812.50 | 105 | 000099-35-4 |
108 | URANIUM-235 | 811.84 | 103 | 015117-96-1 |
109 | TRITIUM | 811.30 | 109 | 010028-17-8 |
110 | URANIUM-234 | 811.02 | 104 | 013966-29-5 |
111 | THORIUM-228 | 810.25 | 106 | 014274-82-9 |
112 | N-NITROSODI-N-PROPYLAMINE | 810.14 | 107 | 000621-64-7 |
113 | CESIUM-137 | 809.95 | 110 | 010045-97-3 |
114 | HEXACHLOROCYCLOHEXANE, ALPHA- | 809.22 | 108 | 000319-84-6 |
115 | CHRYSENE | 809.16 | 116 | 000218-01-9 |
116 | RADON-222 | 807.58 | 111 | 014859-67-7 |
117 | POLONIUM-210 | 807.27 | 112 | 013981-52-7 |
118 | CHRYSOTILE ASBESTOS | 807.01 | 113 | 012001-29-5 |
119 | THORIUM-227 | 806.21 | 115 | 015623-47-9 |
120 | POTASSIUM-40 | 806.18 | 123 | 013966-00-2 |
121 | COAL TARS | 805.94 | 119 | 008007-45-2 |
122 | PLUTONIUM-238 | 805.92 | 118 | 013981-16-3 |
123 | THORON (RADON-220) | 805.42 | 117 | 022481-48-7 |
124 | COPPER | 805.37 | 136 | 007440-50-8 |
125 | STRONTIUM-90 | 805.12 | 125 | 010098-97-2 |
126 | COBALT-60 | 805.10 | 121 | 010198-40-0 |
127 | METHYLMERCURY | 804.88 | 114 | 022967-92-6 |
128 | CHLORPYRIFOS | 804.85 | 120 | 002921-88-2 |
129 | LEAD-210 | 804.59 | 122 | 014255-04-0 |
130 | PLUTONIUM-239 | 804.57 | 123 | 015117-48-3 |
131 | PLUTONIUM | 803.77 | 126 | 007440-07-5 |
132 | AMERICIUM-241 | 803.49 | 126 | 086954-36-1 |
133 | IODINE-131 | 803.24 | 128 | 010043-66-0 |
134 | AMOSITE ASBESTOS | 802.42 | 129 | 012172-73-5 |
134 | GUTHION | 802.42 | 129 | 000086-50-0 |
136 | BISMUTH-214 | 802.16 | 131 | 014733-03-0 |
136 | LEAD-214 | 802.16 | 131 | 015067-28-4 |
138 | CHLORDECONE | 801.89 | 133 | 000143-50-0 |
138 | PLUTONIUM-240 | 801.89 | 133 | 014119-33-6 |
138 | TRIBUTYLTIN | 801.89 | 133 | 000688-73-3 |
141 | MANGANESE | 794.62 | 138 | 007439-96-5 |
142 | S,S,S-TRIBUTYL PHOSPHOROTRITHIOATE | 794.35 | 137 | 000078-48-8 |
143 | SELENIUM | 788.16 | 142 | 007782-49-2 |
144 | POLYBROMINATED BIPHENYLS | 786.35 | 139 | 067774-32-7 |
145 | DICOFOL | 784.76 | 140 | 000115-32-2 |
146 | PARATHION | 778.00 | 143 | 000056-38-2 |
147 | HEXACHLOROCYCLOHEXANE, TECHNICAL | 776.82 | 144 | 000608-73-1 |
148 | PENTACHLOROBENZENE | 771.00 | 146 | 000608-93-5 |
149 | TRICHLOROFLUOROETHANE | 768.57 | 147 | 027154-33-2 |
150 | TREFLAN (TRIFLURALIN) | 767.88 | NEW | 001582-09-8 |
151 | 4,4'-METHYLENEBIS(2-CHLOROANILINE) | 764.81 | 149 | 000101-14-4 |
152 | 1,1-DICHLOROETHANE | 763.84 | 145 | 000075-34-3 |
153 | DDD, O,P'- | 761.79 | NEW | 000053-19-0 |
154 | HEXACHLORODIBENZO-P-DIOXIN | 761.30 | 150 | 034465-46-8 |
155 | HEPTACHLORODIBENZO-P-DIOXIN | 755.51 | 141 | 037871-00-4 |
156 | 2-METHYLNAPHTHALENE | 745.41 | 156 | 000091-57-6 |
157 | 1,1,2-TRICHLOROETHANE | 745.11 | 151 | 000079-00-5 |
158 | AMMONIA | 743.40 | 153 | 007664-41-7 |
159 | ACENAPHTHENE | 742.02 | 155 | 000083-32-9 |
160 | 1,2,3,4,6,7,8,9-OCTACHLORODIBENZOFURAN | 742.00 | 148 | 039001-02-0 |
161 | PHENOL | 731.76 | 158 | 000108-95-2 |
162 | TRICHLOROETHANE | 726.26 | 160 | 025323-89-1 |
163 | CHROMIUM(VI) TRIOXIDE | 725.07 | 159 | 001333-82-0 |
164 | 1,2-DICHLOROETHENE, TRANS- | 724.90 | 157 | 000156-60-5 |
165 | HEPTACHLORODIBENZOFURAN | 720.55 | 154 | 038998-75-3 |
166 | HEXACHLOROCYCLOPENTADIENE | 715.93 | 188 | 000077-47-4 |
167 | 1,4-DICHLOROBENZENE | 714.97 | 162 | 000106-46-7 |
168 | 1,2-DIPHENYLHYDRAZINE | 711.14 | 168 | 000122-66-7 |
169 | CRESOL, PARA- | 710.31 | 255 | 000106-44-5 |
170 | 1,2-DICHLOROBENZENE | 707.53 | 163 | 000095-50-1 |
171 | LEAD-212 | 705.80 | 164 | 015092-94-1 |
172 | OXYCHLORDANE | 705.04 | 165 | 027304-13-8 |
173 | 2,3,4,7,8-PENTACHLORODIBENZOFURAN | 704.18 | 207 | 057117-31-4 |
174 | RADIUM-224 | 703.65 | 166 | 013233-32-4 |
175 | ACETONE | 703.21 | 173 | 000067-64-1 |
176 | HEXACHLORODIBENZOFURAN | 702.90 | 174 | 055684-94-1 |
177 | BENZOPYRENE | 702.36 | NEW | 073467-76-2 |
177 | BISMUTH-212 | 702.36 | 167 | 014913-49-6 |
179 | AMERICIUM | 701.82 | NEW | 007440-35-9 |
179 | CESIUM-134 | 701.82 | NEW | 013967-70-9 |
179 | CHROMIUM-51 | 701.82 | NEW | 014392-02-0 |
182 | TETRACHLOROPHENOL | 699.57 | 169 | 025167-83-3 |
183 | CARBON DISULFIDE | 698.16 | 170 | 000075-15-0 |
184 | CHLOROETHANE | 697.94 | 172 | 000075-00-3 |
185 | INDENO(1,2,3-CD)PYRENE | 697.75 | 177 | 000193-39-5 |
186 | DIBENZOFURAN | 690.90 | 175 | 000132-64-9 |
187 | P-XYLENE | 690.07 | NEW | 000106-42-3 |
188 | 2,4-DIMETHYLPHENOL | 688.71 | 176 | 000105-67-9 |
189 | AROCLOR 1268 | 683.40 | NEW | 011100-14-4 |
190 | 1,2,3-TRICHLOROBENZENE | 679.54 | 179 | 000087-61-6 |
191 | PENTACHLORODIBENZOFURAN | 677.39 | 181 | 030402-15-4 |
192 | HYDROGEN SULFIDE | 677.00 | 171 | 007783-06-4 |
193 | ALUMINUM | 676.84 | 178 | 007429-90-5 |
194 | TETRACHLOROETHANE | 669.36 | 180 | 025322-20-7 |
195 | CRESOL, ORTHO- | 664.16 | NEW | 000095-48-7 |
196 | 1,2,4-TRICHLOROBENZENE | 660.56 | 184 | 000120-82-1 |
197 | HEXACHLOROETHANE | 655.00 | 182 | 000067-72-1 |
198 | BUTYL BENZYL PHTHALATE | 654.79 | 183 | 000085-68-7 |
199 | CHLOROMETHANE | 654.06 | 185 | 000074-87-3 |
200 | VANADIUM | 643.53 | 186 | 007440-62-2 |
201 | 1,3-DICHLOROBENZENE | 643.23 | 199 | 000541-73-1 |
202 | TETRACHLORODIBENZO-P-DIOXIN | 642.53 | 187 | 041903-57-5 |
203 | 2-BUTANONE | 635.58 | 190 | 000078-93-3 |
204 | N-NITROSODIPHENYLAMINE | 631.62 | 189 | 000086-30-6 |
205 | PENTACHLORODIBENZO-P-DIOXIN | 631.35 | 191 | 036088-22-9 |
206 | 2,3,7,8-TETRACHLORODIBENZOFURAN | 626.69 | 193 | 051207-31-9 |
207 | SILVER | 623.74 | 196 | 007440-22-4 |
208 | 2,4-DICHLOROPHENOL | 620.85 | 233 | 000120-83-2 |
209 | 1,2-DICHLOROETHYLENE | 619.36 | 230 | 000540-59-0 |
210 | BROMOFORM | 616.50 | 197 | 000075-25-2 |
211 | ACROLEIN | 615.42 | 194 | 000107-02-8 |
212 | CHROMIC ACID | 612.07 | 195 | 007738-94-5 |
213 | 2,4,5-TRICHLOROPHENOL | 610.20 | 237 | 000095-95-4 |
214 | NONACHLOR, TRANS- | 608.32 | 198 | 039765-80-5 |
215 | COAL TAR PITCH | 605.90 | 201 | 065996-93-2 |
216 | PHENANTHRENE | 605.07 | 232 | 000085-01-8 |
217 | NITRATE | 604.93 | 229 | 014797-55-8 |
218 | ARSENIC TRIOXIDE | 604.83 | 204 | 001327-53-3 |
219 | NONACHLOR, CIS- | 604.57 | 202 | 005103-73-1 |
220 | HYDRAZINE | 604.49 | 203 | 000302-01-2 |
221 | TECHNETIUM-99 | 604.29 | 208 | 014133-76-7 |
222 | NITRITE | 603.81 | 231 | 014797-65-0 |
223 | ARSENIC ACID | 603.75 | 205 | 007778-39-4 |
224 | PHORATE | 603.49 | 206 | 000298-02-2 |
225 | BROMODICHLOROETHANE | 602.96 | 209 | 000683-53-4 |
225 | DIMETHOATE | 602.96 | 209 | 000060-51-5 |
227 | STROBANE | 602.75 | 212 | 008001-50-1 |
228 | NALED | 602.70 | 211 | 000300-76-5 |
229 | ARSINE | 602.68 | 213 | 007784-42-1 |
230 | 4-AMINOBIPHENYL | 602.68 | 214 | 000092-67-1 |
230 | PYRETHRUM | 602.68 | 214 | 008003-34-7 |
230 | TETRACHLOROBIPHENYL | 602.68 | 214 | 026914-33-0 |
233 | DIBENZOFURANS, CHLORINATED | 602.42 | 217 | 042934-53-2 |
233 | ETHOPROP | 602.42 | 217 | 013194-48-4 |
233 | NITROGEN DIOXIDE | 602.42 | 217 | 010102-44-0 |
236 | CARBOPHENOTHION | 602.15 | 220 | 000786-19-6 |
236 | THORIUM-234 | 602.15 | 220 | 015065-10-8 |
238 | DICHLORVOS | 601.89 | 222 | 000062-73-7 |
238 | OZONE | 601.89 | 222 | 010028-15-6 |
238 | PALLADIUM | 601.89 | 275 | 007440-05-3 |
241 | CALCIUM ARSENATE | 601.61 | NEW | 007778-44-1 |
241 | CARBON-14 | 601.61 | 224 | 014762-75-5 |
241 | EUROPIUM-154 | 601.61 | NEW | 015585-10-1 |
241 | KRYPTON-85 | 601.61 | NEW | 013983-27-2 |
241 | MERCURIC CHLORIDE | 601.61 | 224 | 007487-94-7 |
241 | SODIUM-22 | 601.61 | 224 | 013966-32-0 |
241 | STRONTIUM-89 | 601.61 | NEW | 014158-27-1 |
241 | SULFUR-35 | 601.61 | 224 | 015117-53-0 |
241 | URANIUM-233 | 601.61 | 224 | 013968-55-3 |
250 | 2,4-D ACID | 600.48 | 238 | 000094-75-7 |
251 | ANTIMONY | 597.56 | 241 | 007440-36-0 |
252 | CRESOLS | 594.47 | NEW | 001319-77-3 |
253 | PYRENE | 587.22 | 236 | 000129-00-0 |
254 | 2-CHLOROPHENOL | 585.82 | 200 | 000095-57-8 |
255 | DICHLOROBENZENE | 585.69 | 234 | 025321-22-6 |
256 | FORMALDEHYDE | 584.81 | 235 | 000050-00-0 |
257 | N-NITROSODIMETHYLAMINE | 583.18 | NEW | 000062-75-9 |
258 | CHLORODIBROMOMETHANE | 582.62 | 239 | 000124-48-1 |
259 | SUTAN | 574.87 | 243 | 002008-41-5 |
260 | DICHLOROETHANE | 572.77 | 244 | 001300-21-6 |
261 | 1,3-DINITROBENZENE | 572.75 | 247 | 000099-65-0 |
262 | DIMETHYL FORMAMIDE | 570.95 | 240 | 000068-12-2 |
263 | 1,3-DICHLOROPROPENE, CIS- | 570.88 | 245 | 010061-01-5 |
264 | ETHYL ETHER | 570.18 | 246 | 000060-29-7 |
265 | 4-NITROPHENOL | 562.24 | 252 | 000100-02-7 |
266 | 1,3-DICHLOROPROPENE, TRANS- | 556.18 | 257 | 010061-02-6 |
267 | TRICHLOROBENZENE | 555.00 | 251 | 012002-48-1 |
268 | FLUORIDE | 551.20 | 249 | 016984-48-8 |
269 | 1,2-DICHLOROPROPANE | 548.48 | 256 | 000078-87-5 |
270 | 2,6-DINITROTOLUENE | 546.27 | 250 | 000606-20-2 |
271 | METHYL PARATHION | 544.25 | 254 | 000298-00-0 |
272 | METHYL ISOBUTYL KETONE | 541.79 | 253 | 000108-10-1 |
273 | OCTACHLORODIBENZO-P-DIOXIN | 533.34 | 248 | 003268-87-9 |
274 | STYRENE | 532.90 | 258 | 000100-42-5 |
275 | FLUORENE | 531.23 | 260 | 000086-73-7 |
- Page last reviewed: May 7, 2014
- Page last updated: February 12, 2016
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