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Tropical Aquatic and Soil Pollution

Journal Description

Tropical Aquatic and Soil Pollution

Tropical Aquatic and Soil Pollution (e-ISSN: 2798-3056) is an international, scientific, peer-reviewed, open access journal on theoretical and applied sciences related to aquatic and soil, all aspects of pollution and solution to pollution in the biosphere published biannual online by the Society of Tropical Science and Technology and Tecno Scientifica.

Open Access
e-ISSN: 2798-3056
Phytoremediation with Sunflower (Helionthus annus) and Its Capacity for Cadmium Removal in Contaminated Soils
by Peter Oyelade Ogungbile, Adefemi Olatayo Ajibare, Adebisi Esther Enochoghene, Timothy Oyebamiji Ogunbode, Olumide Ekundayo Omotayo Omotayo, Christiana Tinuola Ekanade, Mynepalli Kameswara Chandra Sridhar, John Adebayo Akande

Trop. Aqua. Soil Pollut. 2024, 4(1), pp 1-9;

This study assessed the phytoremediation potential of sunflowers for removing cadmium from the soil around a paint manufacturing industry in Eleyele, Ibadan. Background levels of Cd in the topsoil and subsoil were determined. The site was divided into two plots. Organo-mineral fertilizer (OMF) was applied to the first plot, which served as the experimental plot, while the second plot was without OMF and served as the control. Concentrations of cadmium in the plants were determined using an Atomic Absorption Spectrophotometer. Baseline mean Cd contents were 29.23 mg/kg and 33.30 mg/kg for topsoil and subsoil, respectively. Over the planting period, the sunflower plants removed 53.1% and 51.6% of Cd from the topsoil and subsoil in the test plot, while 40.65% and 47.80% were removed from the topsoil and subsoil, respectively, in the control. Cd absorption from the contaminated soils was found to be translocated to all parts of the sunflower. The concentrations of Cd in the sunflower parts were as follows: root system (10.70 mg/kg), shoot (8.17 mg/kg), leaves (6.43 mg/kg), and seeds (2.52 mg/kg) for the test plot. For the control plots, Cd in the root, shoot, leaves, and seeds were 7.60 mg/kg, 7.43 mg/kg, 4.75 mg/kg, and 2.03 mg/kg, respectively. The study confirmed that sunflowers have the potential to remediate Cd from contaminated soil, and this potential was enhanced by the application of OMF. Full text

Biodegradation of Chlorpyrifos by Microbes: A Review
by Rubiyatno, Aulia Maulana, Jovale Vincent Tongco, Arma Yulisa, Sang Hyeok Park, Md Abu Hanifa Jannat, Rega Permana, Ocean Thakali, Michael Lie, Aouatif Fahssi, Ouahiba Aziez, Camilo Bastidas

Trop. Aqua. Soil Pollut. 2024, 4(1), pp 10-26;

Chlorpyrifos (CP) is a widely used organophosphate pesticide known for its recalcitrant nature, raising concerns about potential ecological and health impacts due to its toxicity. Many plants and animals are contaminated with this pesticide. Microbial biodegradation offers an environmentally friendly and effective method to remove CP from the environment and mitigate its impacts, especially given its low cost, particularly when bioremediation is conducted on-site. Different types of microbial species have been found to function under various environmental conditions, with some, like Pseudomonas nitroreducens PS-2 and Pseudomonas aeruginosa (NCIM 2074), showing promising results with degradation rates of up to 100%. However, challenges exist, such as partial degradation caused by the presence of metabolites, and the recalcitrant nature of CP, which can impede microbes' ability to effectively degrade its hydrocarbon ring. Overall, a combination of approaches, such as microbial and algal methods, or the discovery of new microbial strains, can help overcome these challenges and further enhance the long-term viability of this technique. Full text

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Data collected on 31 December 2023

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