Impact of Covid-19 Lockdown on Availability of Drinking Water in the Arsenic-Affected Ganges River Basin.
Impact of Covid-19 Lockdown on Availability of Drinking Water in the Arsenic-Affected Ganges River Basin.
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DOI：
10.3390/ijerph18062832
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发表时间：
2021-03-10
影响因子：
--
通讯作者：
Mukherjee A
中科院分区：
文献类型：
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作者：
Duttagupta S;Bhanja SN;Dutta A;Sarkar S;Chakraborty M;Ghosh A;Mondal D;Mukherjee A
2020年COVID-19疫情不仅造成巨大的人命损失，更肆虐全球经济及社会文化结构。在世界范围内，各国实施了严格的大规模检疫和封锁，以遏制病原体的传播。虽然这种封锁的有效性值得商榷，但有几份报告表明，人类活动的减少通过短暂改善空气和水质而带来了无意中的好处。印度于2020年3月24日至5月31日期间实行为期68天的全国性严格封锁。在这里，我们描述了封锁对砷污染的印度恒河流域地下水和河流饮用水可持续性的影响，该流域被认为是世界上最大和污染最严重的河流流域之一。利用饮用水威尔斯井的地下水砷测量值和河流监测站的水质数据，我们研究了封锁前（2020年1月至3月），同步封锁（4月至5月）和封锁后（6月至7月）的砷（砷）污染河流中下游约700 km的河段。我们提供了As无污染地下水与河水的对比程度，并将封锁缓解视为可持续饮用水源的机会。生化需氧量（BOD）和化学需氧量（COD）浓度的总体下降和pH值的增加表明，在封锁期间，恒河水质普遍改善，与封锁前和封锁后的时期相比，这可能是由于污水减少造成的。我们还表明，土地利用（农业/工业）和土地覆盖（城市/城郊/农村）在附近的河流河段似乎有很强的影响河流污染物。这些观察提供了一个谨慎乐观的情况下，在砷影响的恒河流域，在未来可能发展可持续的饮用水源，通过使用这些意见的基础上，适当的科学审慎，空间适应性战略和技术干预。
The 2020 COVID-19 pandemic has not only resulted in immense loss of human life, but it also rampaged across the global economy and socio-cultural structure. Worldwide, countries imposed stringent mass quarantine and lockdowns to curb the transmission of the pathogen. While the efficacy of such lockdown is debatable, several reports suggest that the reduced human activities provided an inadvertent benefit by briefly improving air and water quality. India observed a 68-days long, nation-wide, stringent lockdown between 24 March and 31 May 2020. Here, we delineate the impact of the lockdown on groundwater and river sourced drinking water sustainability in the arsenic polluted Ganges river basin of India, which is regarded as one of the largest and most polluted river basins in the world. Using groundwater arsenic measurements from drinking water wells and water quality data from river monitoring stations, we have studied ~700 km stretches of the middle and lower reaches of the As (arsenic)-polluted parts of the river for pre-lockdown (January–March 2020), syn-lockdown (April–May), and post-lockdown periods (June–July). We provide the extent of As pollution-free groundwater vis-à-vis river water and examine alleviation from lockdown as an opportunity for sustainable drinking water sources. The overall decrease of biochemical oxygen demand (BOD) and chemical oxygen demand (COD) concentrations and increase of pH suggests a general improvement in Ganges water quality during the lockdown in contrast to pre-and-post lockdown periods, potentially caused by reduced effluent. We also demonstrate that land use (agricultural/industrial) and land cover (urban-periurban/rural) in the vicinity of the river reaches seems to have a strong influence on river pollutants. The observations provide a cautious optimistic scenario for potentially developing sustainable drinking water sources in the arsenic-affected Ganges river basin in the future by using these observations as the basis of proper scientifically prudent, spatially adaptive strategies, and technological interventions.
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影响因子：
1.9
作者：
Duttagupta, Srimanti;Bhattacharya, Animesh;Bhattacharya, Jayanta
通讯作者：
Bhattacharya, Jayanta
DOI：
10.1007/978-981-10-3889-1_1
发表时间：
2018-01-01
期刊：
GROUNDWATER OF SOUTH ASIA
影响因子：
--
作者：
Mukherjee, Abhijit
通讯作者：
Mukherjee, Abhijit
影响因子：
9.8
作者：
Dutta, Venkatesh;Dubey, Divya;Kumar, Saroj
通讯作者：
Kumar, Saroj
影响因子：
4.7
作者：
Mukherjee, Abhijit;Saha, Dipankar;Bhanja, Soumendra N.
通讯作者：
Bhanja, Soumendra N.
影响因子：
1.9
作者：
Mukherjee A;Babu SS;Ghosh S
通讯作者：
Ghosh S