The Risk Assessment Information System

Portsmouth Background

Background concentrations for inorganic and selected organic chemicals soil and groundwater

This table is reproduced from the Background Investigation Report and more recent Quadrant CAS/CMS Reports.

Analyte
Background Value
soil background (mg/kg)
gallia background (ug/l)
berea background (ug/l)
Aluminum
15314
---
---
Antimony
---
36.5
39.5
Arsenic
31
92
12
Barium
181
151
4011
Benzene
---
---
10.5
Beryllium
1.4
6.5
7
Boron
---
---
---
Cadmium
2
6.5
7
Calcium
1465
---
---
Chromium
28.6
21
17.5
Cobalt
28.2
13
91
Copper
32.6
21
22.5
Cyanide, total
2.5
10.5
10.5
Ethylbenzene
---
---
1.2
Fluoride
9.5
410
4212
Iron
51180
---
---
Lead
34
16
10
Lithium
35
---
---
Magnesium
4742
---
---
Manganese
2012
---
---
Mercury
0.048
1.5
1.5
Nickel
34
30.5
840
Potassium
1902
---
---
Selenium
3
10.5
10.5
Silver
2.5
10.5
11
Sodium
63
---
---
Thallium
2.5
10.5
21.5
Tin
---
36.5
39.5
Toluene
---
---
27
Uranium, total
4.8
1000
1000
Vanadium
50.2
41
12.5
Xylenes
---
---
7.9
Zinc
101
106
115


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