Table
6.2 Contaminant Levels of Riverbed
Soil Samples and Their Categories
|
Sampling
Station No. |
LMW |
HMW |
Total PCBs |
Metals |
Overall Category |
||||||||
|
PAHs |
PAHs |
mg/kg |
|||||||||||
|
ug/kg |
ug/kg |
Ug/kg |
Ag |
As |
Cd |
Cr |
Cu |
Ni |
Pb |
Zn |
Hg |
||
|
S1 |
<550 |
<1700 |
<23 |
<0.1 |
1.1 |
0.1 |
<1 |
1.8 |
<1 |
22 |
37 |
0.09 |
L |
|
S2 |
<550 |
<1700 |
<23 |
0.4 |
1.8 |
<0.1 |
2.1 |
4.0 |
1.2 |
23 |
47 |
0.2 |
L |
|
S3 |
<550 |
<1700 |
<23 |
0.2 |
11 |
0.1 |
2.7 |
2.3 |
<1 |
10 |
55 |
0.1 |
L |
|
S4 |
<550 |
<1700 |
<23 |
<0.1 |
6.5 |
<0.1 |
2.2 |
4.5 |
1.2 |
18 |
42 |
0.09 |
L |
|
S5 |
<550 |
<1700 |
<23 |
0.4 |
<1 |
<0.1 |
2.2 |
2.0 |
1.1 |
22 |
44 |
0.2 |
L |
|
S6 |
<550 |
<1700 |
<23 |
0.3 |
1.7 |
0.1 |
3.9 |
2.7 |
1.2 |
34 |
31 |
0.1 |
L |
|
S7 |
<550 |
<1700 |
<23 |
0.5 |
2.4 |
<0.1 |
1.5 |
1.7 |
<1 |
7.6 |
22 |
0.3 |
L |
Notes:
1.
LMW = Low molecular weight PAHs, that is,
acenaphthene, acenaphthylene, anthracene, fluorene, naphthalene and
phenanthrene.
2.
HMW = High molecular weight PAHs, that is,
benzo[a]anthracene, benzo[a]pyrene, chrysene, dibenzo[a,h]anthracene,
fluoranthene, pyrene, benzo[b]fluoranthene, benzo[k]fluoranthene,
indeno[1,2,3-c,d]pyrene and benzo[g,h,i]perylene.