Abstract The status and the distribution of arsenic in
soils from a disused cattle dip were determined. Elevated
total arsenic levels (1,033–1,369 mg/L) were detected in
the soils. Significant difference (p\0.05) between the
values for the soils obtained from the contaminated sites
and control site (0.15 mg/L) was observed. The level of
total arsenic decreased with increase in depth. The peak
total arsenic (1,369 mg/L) was obtained at 0 cm depth,
indicating the abundance of arsenic at the surface despite
the fact that the dip has been out of use for a long time. The
total arsenic recorded for different depths were significantly
higher than the trigger value of 40 mg/kg. The
distribution of arsenic in the different phases showed that
arsenic was mostly bound to the residual fractions (52%)
and Fe and Al hydroxides (21%). The distribution of
arsenic in the order phases was in the following order:
exchangeable (14%), carbonates (10%) and soluble (3%).
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:tut/oai:encore.tut.ac.za:d1000864 |
| Date | 04 October 2007 |
| Creators | Okokwo, JO |
| Publisher | Springer Science+Business Media |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Text |
| Format | |
| Rights | Springer Science+Business Media, LLC 2007 |
| Relation | Bull Environ Contam Toxicol |
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