Assessment of water quality in a tropical ramsar wetland of southern India in the wake of COVID-19

Aswathy, T.S.; Achu, A.L.; Francis, Shincy; Gopinath, Girish; Joseph, Shijo; Surendran, U.; Sunil, P. S.

doi:10.1016/j.rsase.2021.100604

Cited by 15 publications

(11 citation statements)

References 52 publications

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“…The lake witnessed decreased SPM during the Covid-19 lockdown period compared to other years. Aswathy et al, 2021 applied same method over Astamudi Lake and saw almost 40% reduction of SPM compared to the average SPM of last 5 years. These studies establishes the findings of this paper as a concrete evidence of SPM variation with the lockdown period.…”

Section: Resultsmentioning

confidence: 99%

Suspended Particulate Matter Analysis of Pre and During Covid Lockdown Using Google Earth Engine Cloud Computing: A Case Study of Ukai Reservoir

Paul

K.S.²,

Sood³

et al. 2022

Bull Environ Contam Toxicol

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Presence of suspended particulate matter (SPM) in a waterbody or a river can be caused by multiple parameters such as other pollutants by the discharge of poorly maintained sewage, siltation, sedimentation, flood and even bacteria. In this study, remote sensing techniques were used to understand the effects of pandemic-induced lockdown on the SPM concentration in the lower Tapi reservoir or Ukai reservoir. The estimation was done using Landsat-8 OLI (Operational Land Imager) having radiometric resolution (12-bit) and a spatial resolution of 30 m. The Google Earth Engine (GEE) cloud computing platform was used in this study to generate the products. The GEE is a semi-automated workflow system using a robust approach designed for scientific analysis and visualization of geospatial datasets. An algorithm was deployed, and a time-series (2013–2020) analysis was done for the study area. It was found that the average mean value of SPM in Tapi River during 2020 is lowest than the last seven years at the same time.

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Section: Resultsmentioning

confidence: 99%

Suspended Particulate Matter Analysis of Pre and During Covid Lockdown Using Google Earth Engine Cloud Computing: A Case Study of Ukai Reservoir

Paul

K.S.²,

Sood³

et al. 2022

Bull Environ Contam Toxicol

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“…As previously stated, the COVID-19 pandemic lockdown lasted for about two years, a period long enough to cause significant changes in the economy, culture, and environment [7][8][9][10][11]. Even though the unexpected lockdown hurt the economy, the environment's health continued to improve due to the lack of anthropogenic actions [12].…”

Section: Introductionmentioning

confidence: 97%

Assessment of Water Quality in Selangor, Malaysia during the Pandemic Movement Control Order

Shahrir¹,

Hayder²

2022

Adv Environ Eng Res

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The COVID-19 lockdown reduced the amount of human activity in Selangor, resulting in improved water quality, less water pollution, and a restored ecosystem. The purpose of this research was to investigate water quality before and during the COVID-19 pandemic, as well as changes in water pollution. After acquiring all of the data from third-party sources, this study analyzed the data using a methodical and statistical approach to determine the impact of the COVID-19 pandemic in Selangor. The purpose of the data analysis was to determine whether the parameters in the water samples met the Malaysian water quality standard. To summarise, there were positive impacts on DO, TSS, ammoniacal nitrogen, and turbidity during the pandemic lockdown period, but negative impacts on BOD, COD, and pH levels. The National Water Quality Standards (NWQS) (2022) also indicated that typical water resources remained polluted and that moderation activities for pH, ammoniacal nitrogen, and turbidity parameter were required to assure improved water resources in 2023. This observation was further demonstrated and agreed upon as the impact of the blockade became evident and the anthropogenic impact on water quality became apparent. Based on observations and analysis, it is possible to highlight the positive and negative aspects of the pandemic lockdown period in terms of water quality and wastewater in Selangor.

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“…This study area affects not only human lives but also aquatic life. Most literature studied suspended particulate matter (SPM) [9], total suspended matter (TSM), and chromophoric dissolved organic matter (CDOM), [10]. These are common problems in waterbody surfaces as the suspended particles reduce light penetration and cause eutrophication [9,11].…”

Section: Introductionmentioning

confidence: 99%

“…Most literature studied suspended particulate matter (SPM) [9], total suspended matter (TSM), and chromophoric dissolved organic matter (CDOM), [10]. These are common problems in waterbody surfaces as the suspended particles reduce light penetration and cause eutrophication [9,11]. This relates to the turbidity of the water, and it is one of the common water quality parameters studied by past literature.…”

Section: Introductionmentioning

confidence: 99%

A Review of the Effects of Anthropogenic Activities during the Pandemic Lockdown Period Timeline on Water Quality

Shahrir¹,

Hayder²

2023

Adv Environ Eng Res

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The pandemic has shown its effect on the world regarding health, economy, society, and environment. Whether it is a negative or positive impact, the period of this pandemic has a vast open platform for further studies. This review focused on the impact of the COVID-19 pandemic lockdown on water quality. It is hypothesized that due to the reduced amount of anthropogenic activity due to the global lockdown, the water quality of water resources increased and rejuvenated. This review showed the study period, methods and parameters used by past researchers in this area. The research methods in this review have proven to be reliable in producing coherent results. The data presented showed a dependable indicator for the pollution and water quality standard whether it is based on the country’s standard or World Health Organization (WHO). The review focused on 23 articles from China, India, Malaysia, Morocco, Nepal, and Turkey. Findings from this review showed that the trend between the lockdown period and water quality is not rigid and may be affected by how the area is managed throughout the period. Moreover, this review gives definite suggestions for future studies and highlights the need for actions taken by policymakers.

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Assessment of water quality in a tropical ramsar wetland of southern India in the wake of COVID-19

Cited by 15 publications

References 52 publications

Suspended Particulate Matter Analysis of Pre and During Covid Lockdown Using Google Earth Engine Cloud Computing: A Case Study of Ukai Reservoir

Suspended Particulate Matter Analysis of Pre and During Covid Lockdown Using Google Earth Engine Cloud Computing: A Case Study of Ukai Reservoir

Assessment of Water Quality in Selangor, Malaysia during the Pandemic Movement Control Order

A Review of the Effects of Anthropogenic Activities during the Pandemic Lockdown Period Timeline on Water Quality

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