COVID-19 restrictions and their influences on ambient air, surface water and plastic waste in a coastal megacity, Chennai, India

Robin, R.S.; Ramachandran, Ramesh; Ganguly, Dipnarayan; Hariharan, G.; Paneerselvam, A.; Sundari, Rita; Karthik, R.; Neethu, C.S.; Saravanakumar, C.; Semanti, P.; Prasad, M.H.K.; Mugilarasan, M.; Rohan, Sean K.; Arumugam, K.; Samuel, V. Deepak

doi:10.1016/j.marpolbul.2021.112739

Cited by 31 publications

(14 citation statements)

References 44 publications

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“…The effect of anthropogenic activities that cause environmental degradation has been diminished due to the pause of these activities in the face of measures to contain the rapid spread of COVID-19 [70]. The impacts of the suspension of industrial activities, vehicular transport and other businesses should be part of the new challenges to be measured, as policy makers and stakeholders must also assess which blue products could also be affected by these types of stoppages and which would cause a delay in the progress of policies associated with blue growth [18].…”

Section: Discussionmentioning

confidence: 99%

Identifying the Blue Economy Global Epistemic Community

Vega-Muñoz

Salazar-Sepúlveda

Contreras-Barraza

2021

Water

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The following article aims to identify the characteristics of the epistemic community of Blue Economy researchers, through the description of its scientific production, its special organization and clustering. The information was examined using bibliometric techniques on 302 research works using the Web of Science databases (JCR) between 2013 and 2021. At the same time, VOSviewer software was used to represent the relationships metrically and visually between the data and metadata. A set of research works is reviewed which relates environmental conservation and its implication in the development of the territory, and the relationship between technology and the improvement of ocean management, to highlight those state interventions where benefits are generated for the population or where there is an important challenge for improvement.

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Section: Discussionmentioning

confidence: 99%

Identifying the Blue Economy Global Epistemic Community

Vega-Muñoz

Salazar-Sepúlveda

Contreras-Barraza

2021

Water

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“…Robin et al analyzed the types and amounts of plastics contained in biomedical wastes in India, and found an increase of 17% due to the COVID-19 pandemic in 2021. FTIR-ATR analysis revealed 25.4% PP and 15.4% polyester in the studied types of PPE [ 261 ]. The authors identified 14 polymer types in the evaluated PPE samples.…”

Section: Multiresistant Infection Prevention Including the Covid-19 P...mentioning

confidence: 99%

“… Composition of polymers in the selected commercially available PPE [ 261 ]. Reproduced with permission from Elsevier.…”

Section: Figurementioning

confidence: 99%

Special Features of Polyester-Based Materials for Medical Applications

Darie-Niță¹,

Râpă

Frąckowiak

2022

Polymers

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This article presents current possibilities of using polyester-based materials in hard and soft tissue engineering, wound dressings, surgical implants, vascular reconstructive surgery, ophthalmology, and other medical applications. The review summarizes the recent literature on the key features of processing methods and potential suitable combinations of polyester-based materials with improved physicochemical and biological properties that meet the specific requirements for selected medical fields. The polyester materials used in multiresistant infection prevention, including during the COVID-19 pandemic, as well as aspects covering environmental concerns, current risks and limitations, and potential future directions are also addressed. Depending on the different features of polyester types, as well as their specific medical applications, it can be generally estimated that 25–50% polyesters are used in the medical field, while an increase of at least 20% has been achieved since the COVID-19 pandemic started. The remaining percentage is provided by other types of natural or synthetic polymers; i.e., 25% polyolefins in personal protection equipment (PPE).

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“…In recent past, many papers have been published worldwide showing overall improvement of water quality due to COVID-19-related lockdown and cessation of anthropogenic activities (Chakraborty et al 2021). Robin et al (2021) reported fewer plastic waste in the coastal water due to reduced anthropogenic activity in the Chennai coast. According to Yunus et al (2020), the quality of lake water in China has improved as a result of COVID-19-related lockdown.…”

Section: Global Scenario Of the Improved Water Quality Due To The Loc...mentioning

confidence: 99%

Impact of 2nd wave of COVID-19-related lockdown on coastal water quality at Diu, western coast of India and role of total alkalinity on bacterial loads

Panja

Sonpal

Sahoo

et al. 2022

Environ Sci Pollut Res

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A detailed coastal water monitoring near Diu coast, western part of India was performed from October, 2020 to May, 2021 covering the 2nd lockdown time. Average monthly fluctuation from 7 different sampling stations of total 9 physico-chemical parameters such as pH, salinity, turbidity, nitrite (NO 2 ), nitrate (NO 3 ), ammonia (NH 3 ), phosphate (PO 4 ), total alkalinity and silicate were recorded. Initially, Mann-Kendall trend test for all the 9 parameters showed non-zero trend, which may be either linear or non-linear. During 2nd lockdown period, there was a fluctuation of value for parameters like pH, salinity, nitrate, nitrite and phosphate. Average total bacterial count and differential bacterial count also gradually decreased from March, 2021 sampling. Principal component analysis (PCA) plot covering all the physico-chemical parameters as well as the differential bacterial count showed a distinct cluster of all bacterial count with total alkalinity value. Subsequently, mathematical equation was formulated between total alkalinity value and all differential bacterial count. Upto our knowledge, this is the first report where mathematical equation was formulated to obtain value of different bacterial load based on the derived total alkalinity value of the coastal water samples near Diu, India.

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COVID-19 restrictions and their influences on ambient air, surface water and plastic waste in a coastal megacity, Chennai, India

Cited by 31 publications

References 44 publications

Identifying the Blue Economy Global Epistemic Community

Identifying the Blue Economy Global Epistemic Community

Special Features of Polyester-Based Materials for Medical Applications

Impact of 2nd wave of COVID-19-related lockdown on coastal water quality at Diu, western coast of India and role of total alkalinity on bacterial loads

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