















|
Untitled
2005 CERCLA National Priorities List
The Comprehensive Environmental Response, Compensation, and Liability
Act (CERCLA) section 104 (i), as amended by the Superfund Amendments
and Reauthorization Act (SARA), requires the Agency for Toxic
Substances and Disease Registry (ATSDR) and the EPA prepare a list, in
order of priority, of substances that are most commonly found at
facilities on the National Priorities List (NPL) and which are
determined to pose the most significant potential threat to human
health due to their known or suspected toxicity and potential for
human exposure at these NPL sites. CERCLA also requires this list to
be revised periodically to reflect additional information on hazardous
substances.
This CERCLA priority list is revised and published on a 2-year basis,
with a yearly informal review and revision. This priority list is
based on an algorithm that utilizes the following three components:
frequency of occurrence at NPL sites, toxicity, and potential for
human exposure to the substances found at NPL sites.
ATSDR clearly notes that this priority list is not a list of "most
toxic" substances, but rather a prioritization of substances based on
a combination of their frequency, toxicity, and potential for human
exposure at NPL sites.
Thus, it is possible for substances with low toxicity but high NPL
frequency of occurrence and exposure to be on this priority list. The
objective of this priority list is to rank substances across all NPL
hazardous waste sites to provide guidance in selecting which
substances will be the subject of toxicological profiles prepared by
ATSDR.
The 2005 NPL list is now available at the HazMat Zone.
The chemicals are listed in order of their rank on the NPL. The
materials on the list underlined in black are linked to the Genium
Hazard Overview and MSDS at the HazMat Zone. HazMat Zone
Subscribers, after logging in, can link to the Genium MSDS for each of these
materials.
|
Rank |
CAS No. |
Material |
1 |
7440-38-2 |
ARSENIC |
2 |
7439-92-1 |
LEAD |
3 |
7439-97-6 |
MERCURY |
4 |
75-01-4 |
VINYL CHLORIDE |
5 |
1336-36-3 |
POLYCHLORINATED BIPHENYLS |
6 |
71-43-2 |
BENZENE |
7 |
130498-29-2 |
POLYCYCLIC AROMATIC HYDROCARBONS |
8 |
7440-43-9 |
CADMIUM |
9 |
50-32-8 |
BENZO(A)PYRENE |
10 |
205-99-2 |
BENZO(B)FLUORANTHENE |
11 |
67-66-3 |
CHLOROFORM |
12 |
50-29-3 |
DDT, P,P'- |
13 |
11097-69-1 |
AROCLOR 1254 |
14 |
11096-82-5 |
AROCLOR 1260 |
15 |
53-70-3 |
DIBENZO(A,H)ANTHRACENE |
16 |
79-01-6 |
TRICHLOROETHYLENE |
17 |
60-57-1 |
DIELDRIN |
18 |
18540-29-9 |
CHROMIUM, HEXAVALENT |
19 |
7723-14-0 |
PHOSPHORUS, WHITE |
20 |
72-55-9 |
DDE, P,P'- |
21 |
57-74-9 |
CHLORDANE |
22 |
87-68-3 |
HEXACHLOROBUTADIENE |
23 |
8001-58-9 |
COAL TAR CREOSOTE |
24 |
72-54-8 |
DDD, P,P'- |
25 |
309-00-2 |
ALDRIN |
26 |
92-87-5 |
BENZIDINE |
27 |
12672-29-6 |
AROCLOR 1248 |
28 |
57-12-5 |
CYANIDE |
29 |
53469-21-9 |
AROCLOR 1242 |
30 |
8001-35-2 |
TOXAPHENE |
31 |
127-18-4 |
TETRACHLOROETHYLENE |
32 |
58-89-9 |
HEXACHLOROCYCLOHEXANE, GAMMA- |
33 |
76-44-8 |
HEPTACHLOR |
34 |
106-93-4 |
1,2-DIBROMOETHANE |
35 |
298-04-4 |
DISULFOTON |
36 |
107-02-8 |
ACROLEIN |
37 |
319-85-7 |
HEXACHLOROCYCLOHEXANE, BETA- |
38 |
56-55-3 |
BENZO(A)ANTHRACENE |
39 |
91-94-1 |
3,3'-DICHLOROBENZIDINE |
40 |
7440-41-7 |
BERYLLIUM |
41 |
72-20-8 |
ENDRIN |
42 |
319-86-8 |
HEXACHLOROCYCLOHEXANE, DELTA- |
43 |
96-12-8 |
1,2-DIBROMO-3-CHLOROPROPANE |
44 |
1024-57-3 |
HEPTACHLOR EPOXIDE |
45 |
87-86-5 |
PENTACHLOROPHENOL |
46 |
56-23-5 |
CARBON TETRACHLORIDE |
47 |
11104-28-2 |
AROCLOR 1221 |
48 |
12674-11-2 |
AROCLOR 1016 |
49 |
789-02-6 |
DDT, O,P'- |
50 |
7440-48-4 |
COBALT |
51 |
5103-71-9 |
CIS-CHLORDANE |
52 |
84-74-2 |
DI-N-BUTYL PHTHALATE |
53 |
1031-07-8 |
ENDOSULFAN SULFATE |
54 |
115-29-7 |
ENDOSULFAN |
55 |
7440-02-0 |
NICKEL |
56 |
5103-74-2 |
TRANS-CHLORDANE |
57 |
333-41-5 |
DIAZINON |
58 |
959-98-8 |
ENDOSULFAN, ALPHA |
59 |
1330-20-7 |
XYLENES, TOTAL |
60 |
67708-83-2 |
DIBROMOCHLOROPROPANE |
61 |
72-43-5 |
METHOXYCHLOR |
62 |
12767-79-2 |
AROCLOR |
63 |
207-08-9 |
BENZO(K)FLUORANTHENE |
64 |
53494-70-5 |
ENDRIN KETONE |
65 |
33213-65-9 |
ENDOSULFAN, BETA |
66 |
1333-82-0 |
CHROMIUM(VI) OXIDE |
67 |
74-82-8 |
METHANE |
68 |
11141-16-5 |
AROCLOR 1232 |
69 |
7421-93-4 |
ENDRIN ALDEHYDE |
70 |
56832-73-6 |
BENZOFLUORANTHENE |
71 |
108-88-3 |
TOLUENE |
72 |
591-78-6 |
2-HEXANONE |
73 |
1746-01-6 |
2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN |
74 |
7440-66-6 |
ZINC |
75 |
75-60-5 |
DIMETHYLARSINIC ACID |
76 |
117-81-7 |
DI(2-ETHYLHEXYL)PHTHALATE |
77 |
7440-47-3 |
CHROMIUM |
78 |
91-20-3 |
NAPHTHALENE |
79 |
75-35-4 |
1,1-DICHLOROETHENE |
80 |
71328-89-7 |
AROCLOR 1240 |
81 |
75-09-2 |
METHYLENE CHLORIDE |
82 |
118-96-7 |
2,4,6-TRINITROTOLUENE |
83 |
683-53-4 |
BROMODICHLOROETHANE |
84 |
107-06-2 |
1,2-DICHLOROETHANE |
85 |
302-01-2 |
HYDRAZINE |
86 |
88-06-2 |
2,4,6-TRICHLOROPHENOL |
87 |
51-28-5 |
2,4-DINITROPHENOL |
88 |
111-44-4 |
BIS(2-CHLOROETHYL) ETHER |
89 |
302-04-5 |
THIOCYANATE |
90 |
1332-21-4 |
ASBESTOS |
91 |
121-82-4 |
CYCLOTRIMETHYLENETRINITRAMINE (RDX) |
92 |
7782-50-5 |
CHLORINE |
93 |
118-74-1 |
HEXACHLOROBENZENE |
94 |
13982-63-3 |
RADIUM-226 |
95 |
71-55-6 |
1,1,1-TRICHLOROETHANE |
96 |
121-14-2 |
2,4-DINITROTOLUENE |
97 |
563-12-2 |
ETHION |
98 |
7440-61-1 |
URANIUM |
99 |
100-41-4 |
ETHYLBENZENE |
100 |
7440-14-4 |
RADIUM |
101 |
7440-29-1 |
THORIUM |
102 |
534-52-1 |
4,6-DINITRO-O-CRESOL |
103 |
99-35-4 |
1,3,5-TRINITROBENZENE |
104 |
10043-92-2 |
RADON |
105 |
108-90-7 |
CHLOROBENZENE |
106 |
15262-20-1 |
RADIUM-228 |
107 |
15117-96-1 |
URANIUM-235 |
107 |
14269-63-7 |
THORIUM-230 |
109 |
7440-39-3 |
BARIUM |
110 |
13966-29-5 |
URANIUM-234 |
111 |
621-64-7 |
N-NITROSODI-N-PROPYLAMINE |
112 |
14274-82-9 |
THORIUM-228 |
113 |
206-44-0 |
FLUORANTHENE |
114 |
14859-67-7 |
RADON-222 |
115 |
7439-96-5 |
MANGANESE |
116 |
319-84-6 |
HEXACHLOROCYCLOHEXANE, ALPHA- |
117 |
8007-45-2 |
COAL TARS |
118 |
15117-48-3 |
PLUTONIUM-239 |
119 |
10098-97-2 |
STRONTIUM-90 |
119 |
12001-29-5 |
CHRYSOTILE ASBESTOS |
121 |
22967-92-6 |
METHYLMERCURY |
122 |
13981-52-7 |
POLONIUM-210 |
123 |
13981-16-3 |
PLUTONIUM-238 |
124 |
14255-04-0 |
LEAD-210 |
125 |
7440-07-5 |
PLUTONIUM |
125 |
2921-88-2 |
CHLORPYRIFOS |
127 |
22481-48-7 |
RADON-220 |
128 |
86954-36-1 |
AMERICIUM-241 |
129 |
12172-73-5 |
AMOSITE ASBESTOS |
130 |
10043-66-0 |
IODINE-131 |
131 |
688-73-3 |
TRIBUTYLTIN |
132 |
74-90-8 |
HYDROGEN CYANIDE |
133 |
7440-50-8 |
COPPER |
134 |
86-50-0 |
GUTHION |
135 |
13994-20-2 |
NEPTUNIUM-237 |
136 |
143-50-0 |
CHLORDECONE |
136 |
15046-84-1 |
IODINE-129 |
136 |
14119-33-6 |
PLUTONIUM-240 |
139 |
218-01-9 |
CHRYSENE |
140 |
78-48-8 |
S,S,S-TRIBUTYL PHOSPHOROTRITHIOATE |
141 |
67774-32-7 |
POLYBROMINATED BIPHENYLS |
142 |
7726-95-6 |
BROMINE |
143 |
87-61-6 |
1,2,3-TRICHLOROBENZENE |
144 |
115-32-2 |
DICOFOL |
145 |
56-38-2 |
PARATHION |
146 |
79-34-5 |
1,1,2,2-TETRACHLOROETHANE |
147 |
7782-49-2 |
SELENIUM |
148 |
608-73-1 |
HEXACHLOROCYCLOHEXANE, TECHNICAL GRADE |
149 |
27154-33-2 |
TRICHLOROFLUOROETHANE |
150 |
1582-09-8 |
TRIFLURALIN |
151 |
53-19-0 |
DDD, O,P'- |
152 |
101-14-4 |
4,4'-METHYLENEBIS(2-CHLOROANILINE) |
153 |
34465-46-8 |
HEXACHLORODIBENZO-P-DIOXIN |
154 |
37871-00-4 |
HEPTACHLORODIBENZO-P-DIOXIN |
155 |
608-93-5 |
PENTACHLOROBENZENE |
156 |
7664-41-7 |
AMMONIA |
157 |
91-57-6 |
2-METHYLNAPHTHALENE |
158 |
75-34-3 |
1,1-DICHLOROETHANE |
159 |
106-46-7 |
1,4-DICHLOROBENZENE |
160 |
83-32-9 |
ACENAPHTHENE |
161 |
39001-02-0 |
1,2,3,4,6,7,8,9-OCTACHLORODIBENZOFURAN |
162 |
79-00-5 |
1,1,2-TRICHLOROETHANE |
163 |
25323-89-1 |
TRICHLOROETHANE |
164 |
77-47-4 |
HEXACHLOROCYCLOPENTADIENE |
165 |
38998-75-3 |
HEPTACHLORODIBENZOFURAN |
166 |
122-66-7 |
1,2-DIPHENYLHYDRAZINE |
167 |
57117-31-4 |
2,3,4,7,8-PENTACHLORODIBENZOFURAN |
168 |
26914-33-0 |
TETRACHLOROBIPHENYL |
169 |
106-44-5 |
CRESOL, PARA- |
170 |
27304-13-8 |
OXYCHLORDANE |
171 |
95-50-1 |
1,2-DICHLOROBENZENE |
172 |
56641-38-4 |
GAMMA-CHLORDENE |
173 |
25167-83-3 |
TETRACHLOROPHENOL |
174 |
75-15-0 |
CARBON DISULFIDE |
175 |
13968-55-3 |
URANIUM-233 |
175 |
7440-35-9 |
AMERICIUM |
177 |
7440-05-3 |
PALLADIUM |
178 |
156-60-5 |
1,2-DICHLOROETHENE, TRANS- |
179 |
55684-94-1 |
HEXACHLORODIBENZOFURAN |
180 |
193-39-5 |
INDENO(1,2,3-CD)PYRENE |
181 |
67-64-1 |
ACETONE |
182 |
75-00-3 |
CHLOROETHANE |
183 |
108-95-2 |
PHENOL |
184 |
10061-01-5 |
1,3-DICHLOROPROPENE, CIS- |
185 |
106-42-3 |
P-XYLENE |
186 |
7429-90-5 |
ALUMINUM |
187 |
132-64-9 |
DIBENZOFURAN |
188 |
630-08-0 |
CARBON MONOXIDE |
189 |
105-67-9 |
2,4-DIMETHYLPHENOL |
190 |
25322-20-7 |
TETRACHLOROETHANE |
191 |
74-87-3 |
CHLOROMETHANE |
192 |
30402-15-4 |
PENTACHLORODIBENZOFURAN |
193 |
7783-06-4 |
HYDROGEN SULFIDE |
194 |
34006-76-3 |
BIS(2-METHOXYETHYL) PHTHALATE |
195 |
85-68-7 |
BUTYL BENZYL PHTHALATE |
196 |
95-48-7 |
CRESOL, ORTHO- |
197 |
935-95-5 |
2,3,5,6-TETRACHLOROPHENOL |
198 |
7440-62-2 |
VANADIUM |
199 |
67-72-1 |
HEXACHLOROETHANE |
200 |
62-75-9 |
N-NITROSODIMETHYLAMINE |
201 |
106-99-0 |
1,3-BUTADIENE |
202 |
75-25-2 |
BROMOFORM |
203 |
120-82-1 |
1,2,4-TRICHLOROBENZENE |
204 |
41903-57-5 |
TETRACHLORODIBENZO-P-DIOXIN |
205 |
541-73-1 |
1,3-DICHLOROBENZENE |
206 |
540-59-0 |
1,2-DICHLOROETHYLENE |
207 |
36088-22-9 |
PENTACHLORODIBENZO-P-DIOXIN |
208 |
86-30-6 |
N-NITROSODIPHENYLAMINE |
209 |
78-93-3 |
2-BUTANONE |
210 |
51207-31-9 |
2,3,7,8-TETRACHLORODIBENZOFURAN |
211 |
25321-22-6 |
DICHLOROBENZENE |
212 |
120-83-2 |
2,4-DICHLOROPHENOL |
213 |
7440-22-4 |
SILVER |
214 |
7782-41-4 |
FLUORINE |
215 |
123-91-1 |
1,4-DIOXANE |
216 |
14797-65-0 |
NITRITE |
217 |
10045-97-3 |
CESIUM-137 |
218 |
7738-94-5 |
CHROMIUM TRIOXIDE |
219 |
14797-55-8 |
NITRATE |
220 |
13966-00-2 |
POTASSIUM-40 |
221 |
25321-14-6 |
DINITROTOLUENE |
222 |
7440-36-0 |
ANTIMONY |
223 |
15623-47-9 |
THORIUM-227 |
224 |
65996-93-2 |
COAL TAR PITCH |
225 |
95-95-4 |
2,4,5-TRICHLOROPHENOL |
226 |
7778-39-4 |
ARSENIC ACID |
227 |
1327-53-3 |
ARSENIC TRIOXIDE |
228 |
298-02-2 |
PHORATE |
229 |
1319-77-3 |
CRESOLS |
230 |
73467-76-2 |
BENZOPYRENE |
231 |
12789-03-6 |
CHLORDANE, TECHNICAL |
232 |
60-51-5 |
DIMETHOATE |
233 |
8001-50-1 |
STROBANE |
233 |
14952-40-0 |
ACTINIUM-227 |
235 |
8003-34-7 |
PYRETHRUM |
235 |
92-67-1 |
4-AMINOBIPHENYL |
237 |
7784-42-1 |
ARSINE |
238 |
300-76-5 |
NALED |
239 |
13194-48-4 |
ETHOPROP |
239 |
42934-53-2 |
DIBENZOFURANS, CHLORINATED |
241 |
56534-02-2 |
ALPHA-CHLORDENE |
241 |
786-19-6 |
CARBOPHENOTHION |
243 |
62-73-7 |
DICHLORVOS |
244 |
7784-46-5 |
SODIUM ARSENITE |
244 |
7778-44-1 |
CALCIUM ARSENATE |
244 |
7487-94-7 |
MERCURIC CHLORIDE |
247 |
50-00-0 |
FORMALDEHYDE |
248 |
95-57-8 |
2-CHLOROPHENOL |
249 |
85-01-8 |
PHENANTHRENE |
250 |
7664-39-3 |
HYDROGEN FLUORIDE |
251 |
94-75-7 |
2,4-D ACID |
252 |
124-48-1 |
DIBROMOCHLOROMETHANE |
253 |
330-54-1 |
DIURON |
254 |
2008-41-5 |
BUTYLATE |
255 |
68-12-2 |
DIMETHYL FORMAMIDE |
256 |
129-00-0 |
PYRENE |
257 |
60-29-7 |
ETHYL ETHER |
258 |
1300-21-6 |
DICHLOROETHANE |
259 |
100-02-7 |
4-NITROPHENOL |
260 |
7803-51-2 |
PHOSPHINE |
261 |
12002-48-1 |
TRICHLOROBENZENE |
262 |
606-20-2 |
2,6-DINITROTOLUENE |
263 |
16984-48-8 |
FLUORIDE ION |
264 |
35822-46-9 |
1,2,3,4,6,7,8-HEPTACHLORODIBENZO-P-DIOXIN |
265 |
298-00-0 |
METHYL PARATHION |
266 |
78-11-5 |
PENTAERYTHRITOL TETRANITRATE |
267 |
10061-02-6 |
1,3-DICHLOROPROPENE, TRANS- |
268 |
103-23-1 |
BIS(2-ETHYLHEXYL)ADIPATE |
269 |
86-74-8 |
CARBAZOLE |
270 |
156-59-2 |
1,2-DICHLOROETHENE, CIS- |
271 |
108-10-1 |
METHYL ISOBUTYL KETONE |
272 |
100-42-5 |
STYRENE |
273 |
63-25-2 |
CARBARYL |
274 |
67562-39-4 |
1,2,3,4,6,7,8-HEPTACHLORODIBENZOFURAN |
275 |
107-13-1 |
ACRYLONITRILE |
|
|
|
|