Pesticides and Herbicides

Liang, H. C.; Razaviarani, Vahid; Buchanan, Ian

doi:10.2175/106143013x13698672322660

Cited by 12 publications

(10 citation statements)

References 83 publications

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“…Agriculture in modern times rely on pesticides in order to control pests that pose a threat to crop productivity [1]. Pesticides may contaminate the soil, air, and water with potential adverse effects on non-target aquatic organisms, plants, mammals and soil microorganisms [2]. They can bioaccumulate in living organisms, biomagnify along the food chain and inadvertently affect human health [3].…”

Section: Introductionmentioning

confidence: 99%

Genotoxic, biochemical and histological biomarkers of subacute concentrations of paraquat and glyphosate in Nile Tilapia

Aribisala

Sogbanmu

Kemabonta

2022

Environ Anal Health Toxicol

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The use of herbicides for increased food production may pose risk to non-target organisms. This study evaluated the acute toxicity, genotoxic, biochemical, and histological biomarkers of subacute concentrations of paraquat and glyphosate in Oreochromis niloticus (Nile Tilapia) for 28 days following standard methods. Glyphosate (96 hLC50 value-1.23 mg/L) was 9x more toxic than paraquat (96 hLC50 value-11.20 mg/L) against O. niloticus. Average micronucleated cells were significantly higher in the erythrocytes of O. niloticus exposed to the higher (1.12 mg/L) concentration of paraquat at day 14, both subacute concentrations of paraquat at day 28, and lower concentration (0.01 mg/L) of glyphosate at days 14 and 28 compared to the other treatments and controls. Biochemical biomarkers (MDA and GST) activities were significantly higher at both subacute concentrations of the herbicides in the exposed fish compared to the controls at day 28 only. GSH activity was significantly higher in the 0.11 mg/L paraquat concentration while SOD activity was significantly lower at both subacute concentrations of glyphosate in exposed fish compared to controls at day 28. Histological alterations observed were mild to severe shortening of the gill primary lamellar and hepatic portal inflammation of exposed fish compared to the controls. This study demonstrates the risk to non-target organisms due to herbicides’ run-off from agricultural farmlands into aquatic ecosystems at environmentally relevant or subacute concentrations. Sensitization on the responsible use of pesticides is recommended to promote responsible consumption and production and sustain life below water (United Nations Sustainable Development Goals 12 and 14 respectively).

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Section: Introductionmentioning

confidence: 99%

Genotoxic, biochemical and histological biomarkers of subacute concentrations of paraquat and glyphosate in Nile Tilapia

Aribisala

Sogbanmu

Kemabonta

2022

Environ Anal Health Toxicol

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“…The photocatalytic processes can be commonly defined as applying a combination of UV irradiation in conjunction with a catalyst agent like Fe 2 O 3 , CdS, Sb 2 S 3 , ZnO, TiO 2 , etc. resulting in the production of some oxidative radicals such as hydroxyl radical ( • OH), where the latter can oxidize the toxic organic compounds into less toxic products [12][13][14]. In this regard, nano-powders like TiO 2 and ZnO have most frequently been used as semiconductor catalysts for degradation of different pollutants in recent years [15].…”

Section: Introductionmentioning

confidence: 99%

“…The main advantages of photocatalytic method are ease of operation, low maintenance, the integration into small places, less-expensive, non-toxic, etc. [12,15,16]. The photocatalytic degradation of pesticide takes place on the surface of nanocatalysts by trapping radicals of • OH in the holes of reactive species [17].…”

Section: Introductionmentioning

confidence: 99%

A comparative study for the removal of imidacloprid insecticide from water by chemical-less UVC, UVC/TiO2 and UVC/ZnO processes

Yari

Seid‐Mohammadi

Khazaei

et al. 2019

J Environ Health Sci Engineer

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Background Chloronicotinic insecticide are a class of pesticides that are commonly used as insecticides. Among the frequently used chloronicotinic pesticide, imidacloprid (IM) was developed in 1986. The residual of this insecticide or any pesticides may have serious public health threats. Methods Both degradation and mineralization of the imidacloprid (IM) in aqueous solution was studied under various experimental conditions using different advanced oxidation processes namely, ultraviolet C (UVC), UVC + TiO 2 , and UVC + ZnO. All the experiments were performed using a lab-scale batch photoreactor with a working volume of 100 mL equipped with lowpressure mercury vapor lamp (9 W, 18 cm long, Philips Co.), emitting UV radiation with maximum intensity at 254 nm. The possible intermediates and a reaction pathway for photocatalytic degradation of the IM were also evaluated. Results It was observed that under optimal condition for UVC/TiO 2 process (C 0 = 100 mg/L, pH = 7.5, t = 20 min, TiO 2 dose = 100 mg/L), IM was effectively degraded (88.15%) and followed the first order kinetics model. The degradation efficiency increased with increasing of illumination time and is more favorable in alkaline pH compared to acidic pH. Degradation of the IM in photocatalytic process was compared with photolysis showing a significant synergy effect in the case of the photocatalytic degradation process, leading at 20 min illumination time to a 36.7% increase of the IM removal efficiency in comparison to the single UVC. The GC/MS chromatograms before and after treatment confirmed the effectiveness of the UVC/TiO 2 process in simplifying the nature of IM and its conversion to more simple and degradable compounds. Conclusion The heterogeneous UVC/TiO 2 process was found to be an efficient chemical-less method that is appropriate for degradation of IM from aqueous phase.

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“…It has been estimated that less than 0.1 percent of pesticides applied worldwide into crops reaches their specific targets, leaving large amount of toxic residues free to move into different environmental compartments (Pimentel et al, 1993;WHO, 1990WHO, , 2009. Pesticides are able to contaminate soil and air, as well as surface and ground water, affecting also non-target organisms such as aquatic biota, plants, mammals and soil microorganisms, among others (Liang et al, 2013;Meffe and de Bustamante, 2014). Living species are inevitably exposed to pesticides, including agrochemicals, and they represent both a significant ecological and public health concern.…”

Section: Introductionmentioning

confidence: 99%

Toxic and genotoxic effects of the 2,4-dichlorophenoxyacetic acid (2,4-D)-based herbicide on the Neotropical fish Cnesterodon decemmaculatus

Arcaute

Soloneski

Larramendy

2016

Ecotoxicology and Environmental Safety

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Pesticides and Herbicides

Abstract: This is a review of literature published in 2012 related to the presence of pesticides and herbicides in the environment. The review, divided into four sections, includes ecology, risk assessment, toxicology, and treatment strategies.

Cited by 12 publications

References 83 publications

Genotoxic, biochemical and histological biomarkers of subacute concentrations of paraquat and glyphosate in Nile Tilapia

Genotoxic, biochemical and histological biomarkers of subacute concentrations of paraquat and glyphosate in Nile Tilapia

A comparative study for the removal of imidacloprid insecticide from water by chemical-less UVC, UVC/TiO2 and UVC/ZnO processes

Toxic and genotoxic effects of the 2,4-dichlorophenoxyacetic acid (2,4-D)-based herbicide on the Neotropical fish Cnesterodon decemmaculatus

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