Assessing pesticide, trace metal, and arsenic contamination in soils and dam sediments in a rapidly expanding horticultural area in Australia

Conrad, Stephen R.; White, Shane; Santos, Isaac R.; Sanders, Christian J.

doi:10.1007/s10653-020-00803-z

Cited by 8 publications

(3 citation statements)

References 83 publications

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“…12 The high water solubility (57.9 g•L −1 at 25 °C) of methomyl and its low sorption affinity to soil are responsible to high possibility to detect methomyl in surface and ground water. 13 Reported examples of methomyl contamination in soil (0.058 mg•kg −1 ) 14 and water streams included ground water (up to 10 μg•L −1 ), 15,16 rivers (3.1 μg• L −1 ), soil (2.18 μg•L −1 ), and strawberry farm canals (30 μg• L −1 ). 17 Adsorption is one of the effective wastewater abatement methods.…”

Section: Introductionmentioning

confidence: 99%

Biochar Derived from Pineapple Leaf Non-Fibrous Materials and Its Adsorption Capability for Pesticides

et al. 2023

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Non-fibrous materials (NFMs) are typically discarded during pineapple leaf fiber processing. The underutilized NFM waste was proposed for use in this work as a raw material for the production of biochar . The removal of pesticides (acetamiprid, imidacloprid, or methomyl) from water was then investigated using the NFM derived biochar (NFMBC). The pseudo-secondorder kinetic data suggested chemisorption of pesticide on NFMBC. While acetamiprid or imidacloprid adsorption on NFMBC occurred primarily via multi-layered adsorption (best fitted with the Freundlich isotherms), the Sips adsorption isotherms matched with the experimental data, implying heterogeneous adsorption of methomyl on the biochar surface. The adsorption capacities for acetamiprid, methomyl, and imidacloprid are 82.18, 36.16, and 28.98 mg g −1 , respectively, which are in agreement with the order of the polarity (low to high) of pesticides. Adsorption capacities indicated that the NFMBC preferably removed low-polarity pesticides from water sources. Since pineapple leaves provide fibers and NFMs for materials development, this study should promote an extended agro-waste utilization approach and full-cycle resource management in pineapple fields.

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Section: Introductionmentioning

confidence: 99%

Biochar Derived from Pineapple Leaf Non-Fibrous Materials and Its Adsorption Capability for Pesticides

et al. 2023

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“…Environmental pollution has increased significantly over the past few decades as a result of rapid industrialization and enormous population growth (Habiba et al, 2022). Environmental pollution is attributable to natural contaminants that are then changed, either directly or indirectly, by human activities (Conrad, White, Santos, & Sanders, 2021). Environmental components are polluted as a result of human activities that frequently employ chemicals that are not acceptable for environment.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Pesticide Toxicity in Selected Pakistani Fruits

et al. 2022

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Persistent organic pollutants and heavy metals are damaging the environment. Crops and fields are destroyed by the seepage of heavy metals from untreated industrial waste. The burning and incineration of a variety of items also contributes to main and secondary emissions of pollutants. The excessive usage of Pesticides in Pakistan causes contamination, which effects the ecosystem. Although they increased life quality but also posed a significant health danger. The toxic properties of various pesticides and organic pollutants in Pakistani fruits was observed by exceeding the MRLs. The study aimed to stimulate discussion among Pakistan's stakeholders about the dangers and toxicity of pesticides, as well as prompt plans for environmental cleanup and more environmentally friendly farming. Due to ignorance, a sizable section of the populace is unaware of the issue of pesticide residues and their accumulation in the food chain. The major goal of the review is to record, evaluate, and examine the findings of earlier research on the levels of various pesticides in particular fruits from Pakistan. The results of the earlier investigations made it abundantly evident that more than 50% of the samples were contaminated with pesticides such as organophosphate, pyrethroid, and organochlorine.

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“…A adubação fosfatada é uma necessidade da horticultura intensiva, conforme ocorre no setor de floricultura, assim como a utilização de outros insumos, como pesticidas e demais fertilizantes, os quais podem introduzir na natureza vários contaminantes químicos, incluindo traços de metais (Conrad et al, 2021). A introdução de cádmio (Cd) no solo pode ocorrer por meio de fertilizantes, principalmente adubos fosfatados, lodo de esgoto e materiais de compostagem (Park et al, 2021), o qual pode ser facilmente absorvido pelas plantas e acumular nas raízes, folhas, flores e frutos (ATSDR, 2012).…”

Section: Introductionunclassified

Poliaminas como atenuantes de estresse por cádmio em capuchinha (Tropaeolum majus L.)

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A adubação fosfatada é comum na horticultura intensiva, bem como na floricultura, e, apesar de necessária, pode conter traços de cádmio (Cd), o qual é absorvido e acumulado pelas plantas sem, contudo, apresentar função biológica. As plantas possuem mecanismos de tolerância a metais contaminantes, os quais incluem retenção em determinados compartimentos, como as raízes; complexação em nível celular e ativação de processos metabólicos, como a síntese de poliaminas, para atenuar os efeitos tóxicos. O mercado de flores comestíveis está em expansão, dentre estas, a capuchinha (Tropaeolum majus L.), que é medicinal, ornamental e uma planta alimentícia não convencional. Com isso, o objetivo desta dissertação foi avaliar o acúmulo de Cd e o efeito de poliaminas como atenuante do estresse causado por esse metal na fisiologia e biquímica de capuchinha. O trabalho foi desenvolvido em dois experimentos. O primeiro experimento foi distribuído em delineamento inteiramente casualizado (DIC), com seis tratamentos (0, 5, 10, 20, 40 e 80 µM Cd), com cinco repetições. O segundo experimento foi distribuído em DIC com seis tratamentos (controle (água deionizada), cádmio (0,8 mg kg -1 solo), cádmio + espermina (Spm), cádmio + putrescina (Put), cádmio + espermidina (Spd), cádmio + Spm+ Spd + Put), com cinco repetições. O acúmulo de Cd, enzimas do sistema antioxidante, peroxidação de lipídeos, fluorescência de clorofila a, trocas gasosas e índices de clorofila foram avaliados. As plantas de capuchinhas acumularam em suas estruturas quantidades maiores de Cd à medida que aumentou-se as doses, tendendo a ter alta bioconcentração do metal e diminuição da translocação. Além disso, as plantas de capuchinhas tiveram seu sistema antioxidante, trocas gasosas e fluorescência de clorofila afetados negativamente pelo Cd. O Cd afeta negativamente as plantas de capuchinhas, sendo uma alerta para a produção desta planta em áreas com concentrações deste metal. A aplicação de poliaminas aumenta a tolerância da capuchinha ao estresse por Cd através do aumento da atividade das enzimas do sistema antioxidante e diminuição produção de H 2 O 2 e peroxidação de lipídios, minimizando os danos causados no aparato e processos fotossintéticos. A aplicação de 1 mM de poliaminas (Spm, Spd e Put e sua combinação) podem ser usadas para diminuir os danos causados pelo estresse por Cd em capuchinha. Palavras-chave: Flor comestível. Metais Pesados. Fitormônios.

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Assessing pesticide, trace metal, and arsenic contamination in soils and dam sediments in a rapidly expanding horticultural area in Australia

Cited by 8 publications

References 83 publications

Biochar Derived from Pineapple Leaf Non-Fibrous Materials and Its Adsorption Capability for Pesticides

Biochar Derived from Pineapple Leaf Non-Fibrous Materials and Its Adsorption Capability for Pesticides

Assessment of Pesticide Toxicity in Selected Pakistani Fruits

Poliaminas como atenuantes de estresse por cádmio em capuchinha (Tropaeolum majus L.)

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