Absorptive capacity of selected plant varieties of Brassica oleracea on water soluble mercury from growing media
Paper Details
Absorptive capacity of selected plant varieties of Brassica oleracea on water soluble mercury from growing media
Abstract
Heavy metal contamination of soils has become a serious environmental concern today specially that relevant reports have increased over the past years. Given that plants have natural ability to absorb toxicants from soil, profiling of specific species has been determined for phytoremediation purposes. This is an alternative method of reducing amounts of toxic substances and their effects to the environment. This study aimed to scientifically investigate the capacity of selected varieties of Brassica oleracea to absorb concentrations of Mercury from its growing media. Using T-test with equal variances, the results showed that there was no significant difference with the 10, 20 and 30-day monitoring of the germinated crops of broccoli, cabbage and cauliflower in terms of their height in millimeters. In addition, with the experimentally introduced 0.01M of laboratory grade HgCl2, Hg uptake of 0.0951, 0.0965 and 0.1982 ppm for broccoli, 0.1038, 0.1436 and 0.2780 ppm for cabbage and 0.1366, 0.1246 and 1239ppm for cauliflower resulted from metal analysis using Atomic Absorption Spectrometry. Except for cauliflower – observed to have not grown well with -0006x, both broccoli and cabbage had a positive linear regression slope with 0.0052x and 0.0087x respectively. Data indicates that the crops used have a positive result on Hg absorption. It is recommended to completely monitor the growth and absorption until the crops are fully grown, and explore abilities of phytoremediation of other plant species.
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