Emerging water pollution in the world’s least disturbed lakes on Qinghai-Tibetan Plateau

Wu, Yue; Wang, Shengrui; Ni, Zhaokui; Li, Hong; May, Linda; Jia, Pu

doi:10.1016/j.envpol.2020.116032

Cited by 52 publications

(24 citation statements)

References 67 publications

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“…There are several approaches discussed elsewhere to avoid air (Leutert 1986 ; Hilpert et al 2019 ; Bhargava 2021 ; EPA 2021 ) and water pollution especially for the treatment of wastewater to get rid of the virus (Wu et al 2021 ). Many conventional non-expensive and techno-mediated measures are available to clean water and air (Jackson and Lines 1972 ; Iriti et al 2020 ).…”

Section: Current and Future Pandemics Under Environmental Ignorancementioning

confidence: 99%

Spike in pollution to ignite the bursting of COVID-19 second wave is more dangerous than spike of SAR-CoV-2 under environmental ignorance in long term: a review

Paital

Das

2021

Environ Sci Pollut Res

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Specific areas in many countries such as Italy, India, China, Brazil, Germany and the USA have witnessed that air pollution increases the risk of COVID-19 severity as particulate matters transmit the virus SARS-CoV-2 and causes high expression of ACE2, the receptor for spike protein of the virus, especially under exposure to NO 2 , SO 2 and NOx emissions. Wastewater-based epidemiology of COVID-19 is also noticed in many countries such as the Netherlands, the USA, Paris, France, Australia, Spain, Italy, Switzerland China, India and Hungary. Soil is also found to be contaminated by the RNA of SARS-CoV-2. Activities including defecation and urination by infected people contribute to the source for soil contamination, while release of wastewater containing cough, urine and stool of infected people from hospitals and home isolation contributes to the source of SARS-CoV-2 RNA in both water and soil. Detection of the virus early before the outbreak of the disease supports this fact. Based on this information, spike in pollution is found to be more dangerous in long-term than the spike protein of SARS-CoV-2. It is because the later one may be controlled in future within months or few years by vaccination and with specific drugs, but the former one provides base for many diseases including the current and any future pandemics. Although such predictions and the positive effects of SARS-CoV-2 on environment was already forecasted after the first wave of COVID-19, the learnt lesson as spotlight was not considered as one of the measures for which 2nd wave has quickly hit the world.

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Section: Current and Future Pandemics Under Environmental Ignorancementioning

confidence: 99%

Spike in pollution to ignite the bursting of COVID-19 second wave is more dangerous than spike of SAR-CoV-2 under environmental ignorance in long term: a review

Paital

Das

2021

Environ Sci Pollut Res

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“…As the terminal system of drinking water distribution systems (DWDS), tap is a common way for residents to obtain drinking water in daily life. However, the bacterial community in tap water have not been adequately studied [7,8], compared with that in drinking water reservoirs [9][10][11] and drinking water treatment plants [12] which are also the important determinant factors of drinking water quality.…”

Section: Introductionmentioning

confidence: 99%

Impact of indoor heating and overnight stagnation on tap water: Dynamics in water quality, biomass, bio-activity and bacterial community structure

Zhang

Liu²,

Ma³

et al. 2022

Preprint

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The drinking water distribution system is an important link with water supply system and it affects the quality of the drinking water. Indoor pipeline water quality is regulated by physical, hydraulic and biological elements, such as indoor temperature and stagnation. In this study, full-length 16S rRNA gene sequencing and flow cytometry were used to assess the indoor heating and overnight stagnation on the variation in bacterial community structure and the Intact cell count. The results exhibited that the average intact cell count was 6.99 × 104 cells/mL and the low nucleic acid (LNA) bacteria was 4.48 × 104 cells/mL after stagnation. The average concentration of total and intracellular adenosine triphosphate (ATP) was 3.64 × 10-12 gATP/mL and 3.13 × 10-17 gATP/cell in stagnant water, respectively. The growth of LNA cells played a crucial role in increasing ATP. The dominant phylum was Proteobacteria with average abundance of 87.21%, followed by Actinobacteria (8.25%). Pseudomonas sp. and Mycobacterium sp. increased 1.2-fold and 5.8-fold in stagnant water. Structural equation model and redundancy analysis illustrated that temperature, residual chlorine and Fe concentration significantly affected bacterial count and bacterial community. Taking together, these results show responses of drinking water quality to overnight stagnation and indoor heating, and provide scientific basis for drinking water security management.

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“…However, under the stresses of global change and human disturbance (for example, agriculture and resources exploitation, chemical industry), the ecological environment of the lake deteriorates owing to anthropogenic pollution, restricting the sustainable development of the regional economy (Abu El-Magd et al 2021, Popovicheva et al 2021, Wu et al 2021. Heavy metals are deposited in the sediment by adsorption, hydrolysis, and co-precipitation processes and can also be released from sediments back into the water when environmental conditions change, posing a potential threat to aquatic biota and human health (Wang et al 2017, Wen et al 2018, Zhan et al 2020, Zhang &Gao 2015.…”

Section: Introductionmentioning

confidence: 99%

“…Heavy metals are deposited in the sediment by adsorption, hydrolysis, and co-precipitation processes and can also be released from sediments back into the water when environmental conditions change, posing a potential threat to aquatic biota and human health (Wang et al 2017, Wen et al 2018, Zhan et al 2020, Zhang &Gao 2015. When environmental conditions (e.g., redox potential, pH, bioturbation, and organic matter) change, heavy metals may be released from river sediments into water (Abu El-Magd et al 2021, Popovicheva et al 2021, Wu et al 2021, and this can affect water environment safety and allow heavy metals to enter the food chain, posing a health risk to living organisms.…”

Section: Introductionmentioning

confidence: 99%

Distribution characteristics, source identification, and risk assessment of heavy metals in surface sediments of the salt lakes in the Ordos Plateau, China

Zhang¹,

Zhang²,

Chen³

et al. 2021

Preprint

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Salt lakes have a significant effect on the regional climate, environment, and ecology in semi-arid regions characterized by lower rainfall and high evaporation. However, under the stresses of global change and human disturbance, anthropogenic pollution is the main factor threatening the lake ecological environment. Surface sediment samples collected from four salt lakes in the Ordos Plateau were used to investigate the salinity, concentration, pollution status, potential sources of heavy metals, and influencing factors. The surface sediments of Beida Pond and Gouchi Pond were weakly alkaline (pH < 9) owing to Na2SO4, whereas those of Chaigannaoer and Hongjiannao were strongly alkaline (pH > 9) owing to Na2CO3. The concentration range of Cr, Ni, Cu, Zn, As, Cd, and Pb in the sediment samples collected from the salt lake in the Ordos followed the order of Cr > Zn > Ni > Pb > Cu > As > Cd. The Cr values were higher in Chagannaoer and Hongjiannao, but the Ni, Cu, and Zn values were higher in Beida Pond and Gouchi Pond. The geoaccumulation index (Igeo) and enrichment factor (EF) consistently indicated that Cr posed the greatest potential ecological risk and that Ni, Cu, and Zn pollution was more severe in Beida Pond and Gouchi Pond than in Chagannaoer or Hongjiannao. However, Er and RI indicated these heavy metals were a low risk to the environment. Risk assessment code (RAC) revealed that Pb and Cr exhibited no mobility and had low potential bioavailability risk, although Zn, Ni, and As were categorized as medium risk. Cu had the highest mobility and high risk. Principal component analysis for Beida Pond and Gouchi Pond revealed that the source of Ni, Cu, Zn, Cd, and Pb might be associated with water - soluble elements in aqueous migration. For Cr, Pb, and As, it was indicated that the source of these heavy metals might be lithospheric minerals carried by dust storms. Ni, Cu, Zn, Cd, Cr, and Pb in Chagannaoer and Hongjiannao may be derived from surface runoff, and chemicals from these sources may eventually accumulate in sediments. Pearson’s correlation analysis indicated that pH was the main environmental factor controlling the distribution of heavy metals in Chagannaoer and Hongjiannao.

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Emerging water pollution in the world’s least disturbed lakes on Qinghai-Tibetan Plateau

Cited by 52 publications

References 67 publications

Spike in pollution to ignite the bursting of COVID-19 second wave is more dangerous than spike of SAR-CoV-2 under environmental ignorance in long term: a review

Spike in pollution to ignite the bursting of COVID-19 second wave is more dangerous than spike of SAR-CoV-2 under environmental ignorance in long term: a review

Impact of indoor heating and overnight stagnation on tap water: Dynamics in water quality, biomass, bio-activity and bacterial community structure

Distribution characteristics, source identification, and risk assessment of heavy metals in surface sediments of the salt lakes in the Ordos Plateau, China

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