Improving the assessment of polluted sites using an integrated bio-physico-chemical monitoring framework

Garg, Anuradha; Yadav, Brijesh Kumar; Das, Diganta Bhusan; Wood, Paul J.

doi:10.1016/j.chemosphere.2021.133344

Cited by 13 publications

(13 citation statements)

References 121 publications

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“…The impeded plant growth indicates macrophyte phytotoxicity with increasing contaminant stress (Gadallah 1996). The macrophytes in this study accumulated large amounts of Cr (VI) from the water which influenced physiological and morphological responses resulting in growth retardation, yellowing of the leaves, and leaf shedding at high levels of contaminant exposure (Sinha et al 2002;Mishra et al 2008;Mishra and Tripathi 2009;Garg et al 2022). Oliveira (2012) described that the translocation of Cr (VI) in the aerial parts of the plant (leaves and shoot) affected its cellular metabolism, which directly influenced plant height.…”

Section: Discussionmentioning

confidence: 83%

“…Biomonitoring also overcomes the unrepresentativeness of traditional physico-chemical methods of environmental quality assessment (Altenburger et al 2019;Krayem et al 2021). The representative species are called 'biomarkers' and can be used to define an organisms' response to contamination stress through measurable biochemical, physiological, behavioral, or morphological changes (Garg et al 2022;Krayem et al 2021). Plants accumulating high metal concentrations can also be used for remediating heavy metal-polluted environments (Maine et al 2004;Ahmad et al 2011;Fawzy et al 2012;Al-Homaidan et al 2020;Eid et al 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the process is based on the selective contaminant uptake capacities of the plant (Mishra and Maiti 2017). The uptake and removal of heavy metals is also sensitive to the initial pollutant concentration (Giri and Patel 2011), external environmental conditions such as pH and temperature (Mishra and Maiti 2017), and the presence of co-contaminants (Chirakkara et al 2016;Garg et al 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, this study examined the critical factors and information on Eichhornia crassipes required to determine its biomonitoring potential. Some non-target chemicals or confounding factors such as organism age, mass, and nutrient availability may also result in similar effects and must be differentiated from the pollutant stress under investigation (Garg et al 2022). This study, therefore, examined the effects of nutrition stress on Eichhornia morphology and the distinct effects of Cr (VI) stress to help guide future field applications.…”

Section: Introductionmentioning

confidence: 99%

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Biomonitoring and Phytoremediation of Cr (VI) Contaminated Water: Study on Bioaccumulation and Morphological Responses in Eichhornia crassipes

et al. 2022

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This study examined the potential of the aquatic macrophyte Eichhornia crassipes for bioaccumulating hexavalent chromium and its effects on the plant's morphology. The macrophytes were exposed to different concentrations of Cr (VI) (0 -100 mg L -1 ) in 20% full-strength Hoagland nutrient solution for ten days. Changes in the Cr (VI) concentrations were measured in the media and in specific plant tissues, i.e., roots, shoot, and leaves. The bioconcentration factor (BCF) in all plant parts and the translocation factor (TF) within plant tissues were calculated twice during the experiment. Results demonstrated that E. crassipes accumulated high concentrations of Cr (VI) in all plant tissues examined in a dose-specific manner. High BCF was observed in the plant roots for concentrations up to 60 mg L -1 , after which accumulation in shoots and leaves were greater than roots. The results from E. crassipes survivorship indicated that 40 mg L -1 is the threshold concentration for their survival under Cr (VI) stress. Morphological changes in the plants were examined by monitoring the change in the number of leaves and plant height under varying Cr (VI) concentrations. Impeded growth was observed due to increasing Cr (VI) concentration with maximum growth in the control group with no Cr (VI). Evapotranspiration losses were monitored and found to be minimal in experimental groups with high concentrations, displaying a negative correlation with Cr (VI) contamination. Physico-chemical parameters including pH, Electrical Conductivity, Oxidation Reduction Potential, and colour were also found to be significantly correlated with Cr (VI) concentration and time. The results demonstrated significant Cr (VI) accumulation in E. crassipes as well as noticeable morphological changes, making E. crassipes a suitable organism for biomonitoring and remediating Cr-contaminated sites over a relatively short time-period.

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Section: Discussionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biomonitoring and Phytoremediation of Cr (VI) Contaminated Water: Study on Bioaccumulation and Morphological Responses in Eichhornia crassipes

et al. 2022

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“…Thereby, these pollutants change the balance of biodiversity and have led to serious health problems for humans and other living organisms ( Alharbi et al, 2018 ; Maurya and Pachauri, 2022 ). Monitoring pollution levels is essential for restoration (bio)remediation, as well as it might provide the basis for other pollutants control management practices ( Garg et al, 2022 ). There are three classes for environmental pollution monitoring: physical (such as odor, color, taste, porosity, temperature, conductivity, and aggregate stability), chemical (including parameters such as redox potential, salinity, and biological and chemical oxygen demand), and biological (microbes, plants, and animals) indicators ( Maurya and Pachauri, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Fungal bioassays for environmental monitoring

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Zamuner

et al. 2022

Front. Bioeng. Biotechnol.

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Environmental pollutants are today a major concern and an intensely discussed topic on the global agenda for sustainable development. They include a wide range of organic compounds, such as pharmaceutical waste, pesticides, plastics, and volatile organic compounds that can be found in air, soil, water bodies, sewage, and industrial wastewater. In addition to impacting fauna, flora, and fungi, skin absorption, inhalation, and ingestion of some pollutants can also negatively affect human health. Fungi play a crucial role in the decomposition and cycle of natural and synthetic substances. They exhibit a variety of growth, metabolic, morphological, and reproductive strategies and can be found in association with animals, plants, algae, and cyanobacteria. There are fungal strains that occur naturally in soil, sediment, and water that have inherent abilities to survive with contaminants, making the organism important for bioassay applications. In this context, we reviewed the applications of fungal-based bioassays as a versatile tool for environmental monitoring.

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