A repercussion of COVID-19 lockdown on water quality along the east coast of India

IF 5.8 3区环境科学与生态学 0 ENVIRONMENTAL SCIENCES Environmental Science and Pollution Research Pub Date : 2025-01-03 DOI:10.1007/s11356-024-35843-w

Uma Sankar Panda, Subrat Naik, Umakanta Pradhan, Athan Vashi, Pravakar Mishra, Mallavarapu Venkata Ramana Murthy

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Abstract

The COVID-19 pandemic and subsequent lockdown measures significantly impacted various sectors, including coastal environments. While restrictions led to temporary improvements in air quality, their effects on coastal waters remained understudy. This research conducted four cruises along the east coast of India during pre- and post-COVID-19 lockdown to assess the water quality changes. Results show a significant increase in Chl-a (31.8%), DO (28.1%), and SDD (7.7%), while reductions in NO₃ (34.7%), PO₄ (51.7%), SiO₄ (16.2%), TSM (25.4%), TC (72.3%), and FC (83.3%) were observed. Multivariate analysis identified land-based pollution as the primary source of pollution in coastal waters. Overall, the findings suggest improved coastal water quality during the lockdown. However, for the sustainability of coastal waters, it is proposed that raw sewage, wastewater, and atmospheric fluxes affecting coastal water quality must be regulated.

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COVID-19封锁对印度东海岸水质的影响。

COVID-19大流行和随后的封锁措施对包括沿海环境在内的各个部门产生了重大影响。虽然限制措施暂时改善了空气质量，但对沿海水域的影响仍有待研究。这项研究在2019冠状病毒病之前和之后的封锁期间沿着印度东海岸进行了四次巡航，以评估水质变化。结果显示，Chl-a（31.8%）、DO（28.1%）和SDD（7.7%）显著升高，NO3（34.7%）、PO4（51.7%）、SiO4（16.2%）、TSM（25.4%）、TC（72.3%）和FC（83.3%）显著降低。多变量分析表明，陆地污染是沿海水域污染的主要来源。总体而言，研究结果表明，封锁期间沿海水质有所改善。然而，为了沿海水域的可持续性，建议必须调节影响沿海水质的原污水、废水和大气通量。

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来源期刊

Environmental Science and Pollution Research 环境科学-环境科学

CiteScore

8.70

自引率

17.20%

发文量

6549

审稿时长

3.8 months

期刊介绍： Environmental Science and Pollution Research (ESPR) serves the international community in all areas of Environmental Science and related subjects with emphasis on chemical compounds. This includes: - Terrestrial Biology and Ecology - Aquatic Biology and Ecology - Atmospheric Chemistry - Environmental Microbiology/Biobased Energy Sources - Phytoremediation and Ecosystem Restoration - Environmental Analyses and Monitoring - Assessment of Risks and Interactions of Pollutants in the Environment - Conservation Biology and Sustainable Agriculture - Impact of Chemicals/Pollutants on Human and Animal Health It reports from a broad interdisciplinary outlook.