Heavy metal uptake and accumulation in agricultural crops in urban areas of the Western Cape
Thesis (MTech (Physical Sciences))--Cape Peninsula University of Technology, 2005. === A research study into heavy metals in the Cape Town area, found significant amounts of potentially toxic metals such as lead, cadmium, chromium and iron leaching into the underground aquifer. A further additio...
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ndltd-netd.ac.za-oai-union.ndltd.org-cput-oai-localhost-20.500.11838-20062018-05-28T05:09:50Z Heavy metal uptake and accumulation in agricultural crops in urban areas of the Western Cape Sheldon, Bonita Joy Wewers, F Gihwala, D Soils -- Heavy metal content -- South Africa Heavy metals -- Environmental aspects -- South Africa Plant-soil relationship -- South Africa Vegetable gardening -- South Africa Thesis (MTech (Physical Sciences))--Cape Peninsula University of Technology, 2005. A research study into heavy metals in the Cape Town area, found significant amounts of potentially toxic metals such as lead, cadmium, chromium and iron leaching into the underground aquifer. A further additional study conducted on a community garden in Khayelitsha, showed that vegetable crops have the tendency to accumulate certain heavy metals if they are present in soil and water resources. This study was centered around the Philippi Horticultural Area, which is a large significant farming area within the Cape Metropolitan Region. The significance of the study lies in the fact that at least 50% of the local farmers' produce is sold directly to street traders, residents, local supermarket-chains and restaurants. The remainder of the produce is sold at the Epping Market. The purpose of this study was to investigate heavy metal accumulation in various vegetable crop species taken from some of the local farms in the Phillipi Farming area with the objective to: • investigate heavy metal accumulation in various vegetable crop species taken from some local farms in the Phillipi Farming area. • determine the concentrations of heavy metals present in water and soil resource since these will be the primary source of heavy metals to the vegetables. • determine the soil pH and soil organic matter as these two factors would determine the bie-availability ofthe heavy metals. • identify those crops that pose a definite health risk by means of comparing the determined results to the allowed limits. 2013-02-25T09:33:52Z 2016-09-06T10:33:03Z 2013-02-25T09:33:52Z 2016-09-06T10:33:03Z 2005 Thesis http://hdl.handle.net/20.500.11838/2006 en http://creativecommons.org/licenses/by-nc-sa/3.0/za/ Cape Peninsula University of Technology |
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en |
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topic |
Soils -- Heavy metal content -- South Africa Heavy metals -- Environmental aspects -- South Africa Plant-soil relationship -- South Africa Vegetable gardening -- South Africa |
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Soils -- Heavy metal content -- South Africa Heavy metals -- Environmental aspects -- South Africa Plant-soil relationship -- South Africa Vegetable gardening -- South Africa Sheldon, Bonita Joy Heavy metal uptake and accumulation in agricultural crops in urban areas of the Western Cape |
description |
Thesis (MTech (Physical Sciences))--Cape Peninsula University of Technology, 2005. === A research study into heavy metals in the Cape Town area, found significant
amounts of potentially toxic metals such as lead, cadmium, chromium and iron
leaching into the underground aquifer. A further additional study conducted on a
community garden in Khayelitsha, showed that vegetable crops have the
tendency to accumulate certain heavy metals if they are present in soil and water
resources.
This study was centered around the Philippi Horticultural Area, which is a large
significant farming area within the Cape Metropolitan Region. The significance of
the study lies in the fact that at least 50% of the local farmers' produce is sold
directly to street traders, residents, local supermarket-chains and restaurants.
The remainder of the produce is sold at the Epping Market.
The purpose of this study was to investigate heavy metal accumulation in various
vegetable crop species taken from some of the local farms in the Phillipi Farming
area with the objective to:
• investigate heavy metal accumulation in various vegetable crop species
taken from some local farms in the Phillipi Farming area.
• determine the concentrations of heavy metals present in water and soil
resource since these will be the primary source of heavy metals to the
vegetables.
• determine the soil pH and soil organic matter as these two factors would
determine the bie-availability ofthe heavy metals.
• identify those crops that pose a definite health risk by means of
comparing the determined results to the allowed limits. |
author2 |
Wewers, F |
author_facet |
Wewers, F Sheldon, Bonita Joy |
author |
Sheldon, Bonita Joy |
author_sort |
Sheldon, Bonita Joy |
title |
Heavy metal uptake and accumulation in agricultural crops in urban areas of the Western Cape |
title_short |
Heavy metal uptake and accumulation in agricultural crops in urban areas of the Western Cape |
title_full |
Heavy metal uptake and accumulation in agricultural crops in urban areas of the Western Cape |
title_fullStr |
Heavy metal uptake and accumulation in agricultural crops in urban areas of the Western Cape |
title_full_unstemmed |
Heavy metal uptake and accumulation in agricultural crops in urban areas of the Western Cape |
title_sort |
heavy metal uptake and accumulation in agricultural crops in urban areas of the western cape |
publisher |
Cape Peninsula University of Technology |
publishDate |
2013 |
url |
http://hdl.handle.net/20.500.11838/2006 |
work_keys_str_mv |
AT sheldonbonitajoy heavymetaluptakeandaccumulationinagriculturalcropsinurbanareasofthewesterncape |
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1718681727786811392 |