Environmental Engineering Reference
In-Depth Information
0.1
1hr
)
0.08
(
5hr
t
i
g
h
0.06
H
Infil.
Evap
10hr
0.04
500hr
200hr
300hr
50hr
100hr
0.02
0
0.2
0.6
0.8
1
0
0.4
Concentration in water (mg/l)
Figure 14.16.
Profile of concentrations in water for both swelling (solid lines)
and consolidation (dotted lines)
0.1
1hr
0.08
5hr
0.06
Infil.
Evap.
0.04
100hr
200hr
300hr
500hr
10hr
50hr
0.02
0
0.4
0.6
0.8
1
0
0.2
Concentration in air (mg/l)
Figure 14.17.
Profile of concentration in air for both swelling (solid lines)
and consolidation cases (dotted lines)
14.4. Conclusion
As shown in section 14.2, hydrocarbons are the most important source of
pollution encountered in industrialized countries. Due to the great variety of
hydrocarbonated components
used in industry that may be involved in localized
pollution due to leakage or accidental spilling, the pollution mechanisms in soil may
be of a different nature depending on:
− infiltration;
− whether or not a floating layer is created;
