Open-File Report 01-282
Sediment-Deposition Rates and Organic Compounds in Bottom Sediment at Four Sites in Lake Mead, Nevada, May 1998
Table of Contents | Conversion Factors and Chemical Abbreviations | Report Home PageTable 10. Polycyclic aromatic hydrocarbon and phenol concentrations in bottom-sediment cores at four sites in Lake Mead, May 1998
[Symbols: <, less than; *, simulated (reported when the compound has passed all criteria used to identify its presence and only the concentration is estimated). All concentrations are in micrograms per kilogram]
|
Site 1: Las Vegas Bay -- shallow |
Depth interval (centimeters) |
||||||||||
|
0-5 |
10-15 |
20-25 |
30-35 |
40-45 |
50-55 |
60-65 |
70-75 |
80-85 |
90-95 |
100-105 |
|
|
Acenapthalene |
*3.0 |
*5.0 |
*3.4 |
*2.6 |
*2.3 |
*2.4 |
*3.7 |
*1.7 |
*3.0 |
*2.5 |
*2.6 |
|
Anthracene |
*3.6 |
*5.2 |
*4.4 |
*3.5 |
*3.8 |
*3.0 |
*3.9 |
*2.4 |
*3.9 |
*3.3 |
*2.0 |
|
Benzo[a]anthracene |
*3.5 |
*5.1 |
*4.2 |
*3.2 |
*3.9 |
*2.9 |
*3.7 |
*2.7 |
*3.7 |
*3.4 |
*2.9 |
|
Benzo[b]fluoranthene |
*7.7 |
*6.6 |
*6.8 |
7.4 |
7.7 |
*4.9 |
*8.1 |
*4.2 |
7.0 |
8.9 |
5.2 |
|
Benzo[k]fluoranthene |
*6.7 |
*7.6 |
*6.3 |
6.4 |
6.0 |
*4.2 |
*6.2 |
*3.4 |
5.9 |
7.5 |
*3.9 |
|
Benzo[a]pyrene |
*5.4 |
*7.1 |
*5.5 |
5.2 |
5.7 |
*4.1 |
*5.3 |
*3.4 |
6.6 |
7.0 |
7.0 |
|
Benzo[e]pyrene |
*8.9 |
*9.3 |
*8.0 |
9.9 |
9.7 |
6.1 |
*8.3 |
*4.3 |
9.0 |
10.6 |
6.6 |
|
Benzo[g,h,i]perylene |
*2.7 |
11.4 |
12.8 |
16.5 |
13.8 |
9.2 |
13 |
7.3 |
13.8 |
12 |
6.2 |
|
Chrysene |
*5.9 |
*5.8 |
*5.2 |
6 |
7.3 |
*4.2 |
*5.2 |
*3.8 |
5.3 |
5.1 |
*4.2 |
|
Coronene |
*4.1 |
*4.4 |
*4.7 |
6.4 |
*5.0 |
*3.9 |
*4.5 |
*3.1 |
*5.0 |
*3.3 |
*2.2 |
|
p-Cresol1 |
*4.3 |
*7.0 |
*6.1 |
*2.5 |
*3.0 |
*3.3 |
*5.0 |
*2.4 |
*3.8 |
*3.5 |
*2.5 |
|
Dibenzo[a,h]anthracene |
*2.7 |
*3.6 |
*3.0 |
*2.6 |
*2.4 |
*2.1 |
*2.8 |
*1.7 |
*2.8 |
*2.9 |
*1.8 |
|
1,6-dimethylnaphthalene |
*4.5 |
*6.0 |
*5.7 |
*2.1 |
*3.0 |
*3.0 |
11.6 |
*4.3 |
6.8 |
5.2 |
*2.1 |
|
2,6-dimethylnaphthalene |
42.2 |
38.5 |
52.6 |
11.1 |
10.4 |
21.2 |
81.9 |
25.6 |
57.1 |
39.6 |
6.4 |
|
2-ethylnaphthalene |
*2.3 |
*3.7 |
*2.9 |
*1.9 |
*1.6 |
*1.8 |
*2.4 |
*1.5 |
*2.1 |
*1.7 |
*1.2 |
|
Fluoranthene |
*6.9 |
10.2 |
*7.4 |
6.2 |
6.7 |
5.1 |
*6.1 |
*3.8 |
5.3 |
*4.2 |
*4.8 |
|
9-H-fluorene |
*.61 |
*1.1 |
*.91 |
*.71 |
*.73 |
*.45 |
*.57 |
*.31 |
*.48 |
<5 |
*.41 |
|
Indeno [1,2,3-c,d]pyrene |
13.2 |
12.2 |
13 |
15.3 |
14.4 |
9.9 |
12.3 |
6.5 |
14.6 |
12.8 |
6.6 |
|
1-methyl-9H-fluorene |
*2.4 |
<10 |
*3.6 |
<5 |
*1.7 |
*1.5 |
<10 |
<5 |
<5 |
<5 |
<5 |
|
2-methylanthracene |
<10 |
<10 |
<10 |
*1.7 |
*1.9 |
<5 |
<10 |
<5 |
*2.1 |
<5 |
<5 |
|
1-methylphenanthrene |
<10 |
11 |
<10 |
*1.9 |
*1.9 |
*1.7 |
<10 |
*1.6 |
*2.3 |
<5 |
<5 |
|
4,5-methylenephenanthrene |
*2.5 |
*4.1 |
<10 |
*2.0 |
*2.0 |
*1.8 |
*2.4 |
*1.6 |
*2.1 |
*2.0 |
*2.0 |
|
Methylpyrene |
*2.3 |
*4.0 |
*3.0 |
*1.8 |
*1.6 |
*1.9 |
<10 |
*1.5 |
*2.1 |
*1.9 |
*1.5 |
|
Perylene |
*6.7 |
*7.6 |
*6.3 |
6.4 |
6 |
*4.2 |
*6.2 |
*3.4 |
5.9 |
7.5 |
*3.9 |
|
Phenanthrene |
*3.9 |
*5.0 |
*5.1 |
*3.9 |
*4.2 |
*3.1 |
*3.6 |
*2.3 |
*3.4 |
*2.8 |
*2.1 |
|
Phenol1 |
*7.0 |
*8.2 |
*9.8 |
*4.3 |
5.3 |
*4.6 |
*5.8 |
*4.2 |
5.6 |
*4.0 |
5.1 |
|
Pyrene |
*7.7 |
10.7 |
*8.3 |
7.4 |
8 |
5.4 |
*7.2 |
*4.4 |
6.5 |
6.4 |
7.2 |
|
2,3,6-trimethylnaphthalene |
<10 |
<10 |
<10 |
<5 |
*1.6 |
*1.9 |
<10 |
<5 |
*2.0 |
*2.1 |
<5 |
|
Site 2: Las Vegas Bay -- deep |
Depth interval (centimeters) |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
0-5 |
10-15 |
20-25 |
30-35 |
40-45 |
50-55 |
60-65 |
70-75 |
80-85 |
90-95 |
100-105 |
110-115 |
|
|
Acenaphthene |
<5 |
<5 |
<5 |
*1.0 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
|
Acenaphthylene |
*2.0 |
*3.1 |
*3.4 |
*4.7 |
*2.3 |
*2.2 |
<5 |
*2.6 |
*4.0 |
*1.5 |
*1.6 |
*2.5 |
|
Anthracene |
*2.9 |
*3.1 |
*4.3 |
*4.4 |
*2.6 |
*3.3 |
*3.5 |
*4.1 |
*5.0 |
*1.8 |
*1.9 |
*2.9 |
|
Benzo[a]anthracene |
*2.8 |
*2.9 |
*4.4 |
*3.9 |
*2.5 |
*3.3 |
*2.9 |
*3.6 |
*4.9 |
*2.3 |
*1.7 |
*2.2 |
|
Benzo[b]fluoranthene |
*4.8 |
*5.0 |
8.8 |
9.1 |
*4.3 |
5.7 |
5.8 |
7.7 |
14.4 |
*3.5 |
*2.3 |
*2.8 |
|
Benzo[k]fluoranthene |
*4.3 |
5.2 |
7.2 |
6.8 |
*4.0 |
5.2 |
*4.8 |
6.4 |
11.3 |
*3.0 |
*2.1 |
*2.6 |
|
Benzo[a]pyrene |
*3.9 |
*4.6 |
5.8 |
5.5 |
*3.8 |
5.1 |
*4.4 |
6 |
11.7 |
*2.9 |
*2.1 |
*2.7 |
|
Benzo[e]pyrene |
5.8 |
6.6 |
11.9 |
11.2 |
*4.6 |
7 |
6.6 |
7.8 |
15.6 |
*3.7 |
*2.3 |
*3.1 |
|
Benzo[g,h,i]perylene |
8.1 |
9.8 |
17.4 |
14.8 |
6.6 |
9.8 |
8.8 |
8.6 |
15.6 |
*3.9 |
*2.1 |
*3.7 |
|
Chrysene |
*3.9 |
*4.1 |
8.5 |
6.8 |
*3.2 |
*4.6 |
*4.0 |
*4.9 |
7.4 |
*2.6 |
*2.2 |
*2.6 |
|
Coronene |
*2.8 |
*2.5 |
5.4 |
*3.9 |
*1.8 |
*3.3 |
*3.5 |
*3.6 |
*4.0 |
*1.6 |
<5 |
*2.5 |
|
p-Cresol1 |
*3.5 |
*4.5 |
*2.9 |
*3.2 |
*3.5 |
5.9 |
5.8 |
6.4 |
6.4 |
*2.3 |
*3.0 |
*4.1 |
|
Dibenzo[a,h]anthracene |
*2.1 |
*1.9 |
*2.8 |
*2.6 |
*2.0 |
*2.3 |
<5 |
<5 |
*4.5 |
*1.6 |
<5 |
<5 |
|
1,6-dimethylnaphthalene |
*3.0 |
7.6 |
*2.4 |
*2.6 |
*4.0 |
8.3 |
13.2 |
8.9 |
7.4 |
*3.0 |
*4.2 |
*3.3 |
|
2,6-dimethylnaphthalene |
18.4 |
62.9 |
5.5 |
9.5 |
38.2 |
74.4 |
123 |
87 |
67.4 |
22.1 |
38.4 |
27.5 |
|
2-ethylnaphthalene |
10.6 |
<5 |
<5 |
*1.2 |
21.2 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
|
Fluoranthene |
*4.5 |
*4.9 |
7.6 |
6.4 |
*3.8 |
*5.0 |
*3.9 |
*4.5 |
6.2 |
*3.2 |
*2.7 |
*3.0 |
|
9H-fluorene |
*.38 |
*.53 |
*.84 |
*.72 |
*.45 |
<5 |
<5 |
*.56 |
<5 |
<5 |
<5 |
<5 |
|
Indeno [1,2,3-c,d]pyrene |
7.8 |
9.6 |
16 |
16.1 |
7 |
10 |
8.4 |
10 |
21.2 |
*4.3 |
*2.2 |
*3.4 |
|
1-methyl-9H-fluorene |
*2.1 |
<5 |
*1.7 |
*1.6 |
<5 |
<5 |
<5 |
*2.7 |
<5 |
<5 |
<5 |
<5 |
|
2-methylanthracene |
<5 |
<5 |
*1.9 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
|
4,5-methylenephenanthrene |
*1.8 |
*1.6 |
*2.1 |
*2.0 |
<5 |
*1.9 |
<5 |
<5 |
*3.7 |
*1.4 |
<5 |
<5 |
|
1-methylphenanthrene |
<5 |
<5 |
*2.0 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
|
1-methylpyrene |
*2.1 |
*1.7 |
*1.9 |
*1.6 |
*1.5 |
<5 |
<5 |
<5 |
*3.2 |
*1.4 |
<5 |
*2.2 |
|
Naphthalene |
*1.9 |
*2.2 |
*1.9 |
*2.0 |
*1.7 |
*2.1 |
<5 |
*2.8 |
*2.9 |
<5 |
*1.5 |
*2.0 |
|
Perylene |
*4.3 |
5.2 |
7.2 |
6.8 |
*4.0 |
5.2 |
*4.8 |
6.4 |
11.3 |
*3.0 |
*2.1 |
*2.6 |
|
Phenanthrene |
*3.4 |
*3.4 |
*5.0 |
*4.9 |
*2.7 |
*3.7 |
*2.9 |
*3.3 |
*3.8 |
*1.6 |
*1.8 |
*2.0 |
|
Phenol1 |
13.5 |
14 |
16.9 |
16.7 |
11.7 |
13.8 |
14.9 |
12.9 |
18.3 |
7.3 |
10.5 |
10.1 |
|
Pyrene |
5.2 |
5.7 |
8.7 |
7.1 |
*4.0 |
5.9 |
*4.7 |
5.3 |
8.8 |
*3.5 |
*2.8 |
*3.1 |
|
2,3,6-trimethylnaphthalene |
<5 |
<5 |
<5 |
<5 |
*1.6 |
*1.5 |
<5 |
<5 |
*2.8 |
<5 |
<5 |
<5 |
|
Site 3: Overton Arm |
Depth interval (centimeters) |
|||||
|---|---|---|---|---|---|---|
|
0-5 |
10-15 |
20-25 |
30-35 |
40-45 |
55-60 |
|
|
Acenaphthene |
<10 |
*2.6 |
*1.9 |
*1.9 |
<10 |
*1.5 |
|
Acenaphthylene |
*4.1 |
<10 |
*2.3 |
*2.5 |
<10 |
*1.4 |
|
Anthracene |
<10 |
*3.4 |
*2.6 |
*2.7 |
*2.5 |
*2.0 |
|
Benzo[a]anthracene |
<10 |
<10 |
*2.2 |
*2.3 |
<10 |
*1.4 |
|
Benzo[b]fluoranthene |
*3.3 |
*2.7 |
*2.3 |
*2.8 |
*2.3 |
*1.9 |
|
Benzo[k]fluoranthene |
*3.4 |
*2.6 |
*2.1 |
*2.3 |
*2.2 |
*1.9 |
|
Benzo[a]pyrene |
<10 |
<10 |
<10 |
<10 |
<10 |
*1.6 |
|
Benzo[e]pyrene |
*3.8 |
<10 |
*2.5 |
*2.6 |
*2.5 |
*1.8 |
|
Benzo[g,h,i]perylene |
*3.4 |
*2.4 |
*2.2 |
*2.6 |
*2.4 |
*1.8 |
|
Chrysene |
<10 |
*2.6 |
*2.1 |
*2.3 |
*2.1 |
*1.9 |
|
Coronene |
<10 |
*2.4 |
*1.9 |
*2.3 |
*2.0 |
*1.5 |
|
p-Cresol1 |
*5.1 |
*3.0 |
*3.6 |
*4.4 |
*3.7 |
*2.1 |
|
1,6-dimethylnaphthalene |
*7.0 |
*3.0 |
*4.3 |
*8.5 |
*6.3 |
*3.2 |
|
2,6-dimethylnaphthalene |
43.8 |
*9.6 |
30.4 |
70.7 |
69.7 |
31 |
|
Fluoranthene |
*3.9 |
*2.7 |
*2.5 |
<10 |
<10 |
*1.7 |
|
9H-fluorene |
<10 |
<10 |
*.25 |
*.38 |
*.28 |
<5 |
|
Indeno[1,2,3-c,d]pyrene |
*3.5 |
*2.6 |
*2.3 |
*2.4 |
*2.4 |
*1.7 |
|
1-methyl-9H-fluorene |
<10 |
<10 |
*2.2 |
*2.6 |
*2.3 |
<5 |
|
Naphthalene |
*3.5 |
*2.4 |
*2.0 |
*2.4 |
*2.2 |
<5 |
|
Perylene |
24.4 |
33.6 |
174 |
197 |
164 |
130 |
|
Phenanthrene |
*3.4 |
*2.3 |
*2.0 |
*2.3 |
*2.2 |
*1.5 |
|
Phenol1 |
*8.2 |
*4.2 |
*6.3 |
*6.8 |
*7.5 |
*4.8 |
|
Pyrene |
*3.5 |
*3.6 |
*2.3 |
*2.6 |
*2.4 |
*2.3 |
|
2,3,6-trimethylnaphthalene |
<10 |
<10 |
<10 |
*2.5 |
*2.4 |
*1.7 |
|
Site 4: Colorado and Virgin Rivers confluence (pre-impoundment) |
Depth interval (centimeters) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
0-3 |
6-9 |
12-15 |
18-21 |
24-27 |
30-35 |
40-45 |
50-55 |
60-65 |
75-80 |
|
|
Acenaphthene |
*2.5 |
*2.7 |
<10 |
<5 |
<10 |
*2.1 |
<20 |
<10 |
<10 |
<10 |
|
Acenaphthylene |
*2.9 |
<10 |
<10 |
*3.3 |
<10 |
<10 |
<20 |
*2.4 |
<10 |
*3.0 |
|
Anthracene |
<10 |
<10 |
*2.6 |
*3.6 |
*3.4 |
*3.1 |
*5.2 |
*3.2 |
*3.0 |
*2.4 |
|
Benzo[a]anthracene |
<10 |
<10 |
*2.0 |
*2.8 |
*2.8 |
*2.7 |
*4.4 |
*2.8 |
*2.8 |
*1.9 |
|
Benzo[b]fluoranthene |
*3.0 |
*3.0 |
*2.6 |
*4.0 |
*3.5 |
*4.2 |
*6.8 |
*5.3 |
*4.5 |
*2.4 |
|
Benzo[k]fluoranthene |
*2.6 |
*2.8 |
*2.3 |
*3.3 |
*3.1 |
*3.0 |
*5.1 |
*3.4 |
*2.9 |
*2.1 |
|
Benzo[g,h,i]perylene |
*2.9 |
*3.2 |
*3.1 |
*4.2 |
*3.9 |
*5.5 |
*7.6 |
*6.8 |
*6.0 |
*2.1 |
|
Benzo[a]pyrene |
<10 |
<10 |
<10 |
*3.0 |
<10 |
<10 |
<20 |
<10 |
102 |
*2.1 |
|
Benzo[e]pyrene |
*3.1 |
*3.3 |
*3.0 |
*4.3 |
*4.6 |
*4.6 |
*6.6 |
*5.4 |
*5.2 |
*2.5 |
|
Chrysene |
*2.6 |
*2.9 |
*2.4 |
*3.6 |
*3.4 |
*3.4 |
*5.2 |
*4.0 |
*4.0 |
*2.1 |
|
Coronene |
*2.8 |
*3.1 |
*2.6 |
*2.9 |
<10 |
*4.6 |
*6.4 |
*4.9 |
*4.9 |
*1.7 |
|
p-Cresol1 |
*3.7 |
*4.7 |
*4.6 |
10.3 |
*3.9 |
*3.7 |
*5.5 |
*3.3 |
*3.8 |
5.3 |
|
Dibenzo[a,h]anthracene |
<10 |
<10 |
<10 |
<5 |
*2.5 |
<10 |
<20 |
*2.4 |
*2.3 |
<5 |
|
1,2,-dimethylnaphthalene |
<10 |
<10 |
<10 |
*2.8 |
<10 |
*2.5 |
*4.2 |
*2.4 |
*2.6 |
*1.9 |
|
1,6-dimethylnaphthalene |
*3.1 |
*4.2 |
*4.5 |
10.4 |
*4.1 |
*5.4 |
*5.6 |
*3.9 |
*5.1 |
*3.4 |
|
2,6-dimethylnaphthalene |
*4.7 |
17.6 |
30.5 |
77.8 |
*9.9 |
30.8 |
*5.9 |
*3.9 |
15.7 |
10 |
|
2-ethylnaphthalene |
<10 |
<10 |
<10 |
<5 |
<10 |
<10 |
<20 |
*2.5 |
<10 |
<5 |
|
Fluoranthene |
*3.2 |
*3.3 |
*2.8 |
*3.4 |
*3.4 |
*3.0 |
*5.2 |
*3.9 |
*3.7 |
*3.7 |
|
9H-fluorene |
<10 |
<10 |
<10 |
<5 |
*.32 |
<10 |
<20 |
*.47 |
*.54 |
*.34 |
|
Indeno[1,2,3-c,d]pyrene |
*2.7 |
*3.2 |
*2.6 |
*3.4 |
*3.4 |
*3.6 |
*5.8 |
*4.0 |
*4.0 |
<5 |
|
1-methyl-9H-fluorene |
<10 |
<10 |
<10 |
*3.8 |
*3.2 |
*2.9 |
*4.6 |
*3.0 |
*3.1 |
*2.4 |
|
2-methylanthracene |
<10 |
<10 |
<10 |
<5 |
*3.8 |
<10 |
*5.8 |
<10 |
<10 |
<5 |
|
4,5-methylenephenanthrene |
<10 |
<10 |
<10 |
<5 |
<10 |
<10 |
*4.6 |
*2.9 |
*3.0 |
<5 |
|
1-methylphenanthrene |
<10 |
<10 |
<10 |
<5 |
*3.3 |
<10 |
*4.8 |
<10 |
<10 |
<5 |
|
1-methylpyrene |
<10 |
<10 |
<10 |
*2.9 |
*2.9 |
<10 |
*4.3 |
*4.3 |
*2.8 |
*2.6 |
|
Naphthalene |
*2.8 |
*2.8 |
*2.3 |
*4.8 |
*3.1 |
*3.3 |
*4.8 |
*3.5 |
*3.9 |
*2.5 |
|
Perylene |
10.7 |
14.8 |
95.4 |
80.8 |
47.9 |
105 |
113 |
98 |
118 |
259 |
|
Phenanthrene |
*2.8 |
*2.8 |
*2.4 |
*3.8 |
*3.6 |
*3.7 |
*5.7 |
*4.7 |
*5.1 |
*2.4 |
|
Phenol1 |
*6.6 |
*7.5 |
*8.4 |
22 |
*7.7 |
*8.2 |
*11.4 |
33 |
22.7 |
24.8 |
|
Pyrene |
*3.1 |
*3.2 |
*2.7 |
*3.4 |
*3.7 |
*3.5 |
*5.8 |
*4.3 |
*4.0 |
*2.4 |
|
2,3,6-trimethylnaphthalene |
<10 |
<10 |
<10 |
*4.1 |
<10 |
*3.0 |
*4.4 |
*2.9 |
*2.9 |
<5 |
1 Phenols.