Laboratory Study Of Arsenic Uptake And Phytoremediation Potential Of Three Aquatic Macrophytes Of Meghalaya, India (original) (raw)
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Contamination of terrestrial and aquatic ecosystems by arsenic (As) is a very sensitive environmental issue due to its adverse impact on human health. The gravity of the problem is extremely serious in Bangladesh and the Indian State of West Bengal, which has already caused health hazards to humans, animals and soil biota. A build-up of As in agricultural soils and agronomic produces was aggravated by the extensive use of ground water for crop irrigation in these regions. The As concentration in soil-plant systems has been exceeded the harmful threshold values (Sanyal and Dhillon, 2005). Therefore, it is extremely vital to ameliorate these contaminated soils. We examined the potential of phytoextraction of As by Chinese brake fern (Pteris vittata L.). It is a vigorously pursued ‘green cure technology’ where the fern accumulates huge amounts of As in its fronds (Ma et al., 2001). The application of phosphate is also viewed as one of the management strategies for a successful phytorem...
International Journal of Scientific Research in Science and Technology, 2019
Phytoremediation involves the use of plants to remove toxic compounds from water. Arsenic is an element of considerable environmental and toxicological interest because of its potential deleterious effects upon human health [14-15]. The present study highlights the scope of biological strategy for As removal through phytoremediation. In this research, a laboratory-constructed experimental set up was employed to characterize for the absorption of arsenic by two plants root which are Arabidopsis thaliana ( L.) Heynh. and also Eichhornia crassipes(Mart.) Solms were taken and experiments were done on them with a control set up of experiment. The result of Arabidopsis thaliana ( L.) Heynh. Plant root of 40 gm after 6 hours treatment, half of arsenic concentration reduced to its initial concentration. 75 µg was reduced to 40 µg at 6 hour treatment. In case treatment of Eichhornia crassipes(Mart.) Solms 40 gm roots after 8 hours the arsenic concentration just reduced to its half and no reduction was observed after 8 hour. So this study reveals that Arabidopsis thaliana ( L.) Heynh and Eichhornia crassipes(Mart.) Solms roots act as As hyperaccumulators, and potentially strong plants for As removal from water system and are highly recommended for using as biological tool for arsenic absorption.