Water Quality Assessment and Apportionment of Pollution Sources of Selected Pollutants in the Min Jiang, a Headwater Tributary of The Yangtze River

Zhao, Jian; Guo, Fei; Lei, Kun

doi:10.4172/2157-7587.1000211

Cited by 4 publications

(2 citation statements)

References 20 publications

(27 reference statements)

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“…Generally, NH 4 -N and DO exhibited similar seasonal cycles at both stations. The crest and trough of DO reflected higher values in winter and lower values in summer, which agrees with results from [ 49 ]. DO concentration tended to track river temperature, with high concentrations in winter and early spring (times of lower water temperature), and low concentrations in summer and fall (times of higher water temperature).…”

Section: Resultssupporting

confidence: 92%

Identification of long-term trends and seasonality in high-frequency water quality data from the Yangtze River basin, China

Duan

Chen

et al. 2018

PLoS ONE

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Comprehensive understanding of the long-term trends and seasonality of water quality is important for controlling water pollution. This study focuses on spatio-temporal distributions, long-term trends, and seasonality of water quality in the Yangtze River basin using a combination of the seasonal Mann-Kendall test and time-series decomposition. The used weekly water quality data were from 17 environmental stations for the period January 2004 to December 2015. Results show gradual improvement in water quality during this period in the Yangtze River basin and greater improvement in the Uppermost Yangtze River basin. The larger cities, with high GDP and population density, experienced relatively higher pollution levels due to discharge of industrial and household wastewater. There are higher pollution levels in Xiang and Gan River basins, as indicated by higher NH4-N and CODMn concentrations measured at the stations within these basins. Significant trends in water quality were identified for the 2004–2015 period. Operations of the three Gorges Reservoir (TGR) enhanced pH fluctuations and possibly attenuated CODMn, and NH4-N transportation. Finally, seasonal cycles of varying strength were detected for time-series of pollutants in river discharge. Seasonal patterns in pH indicate that maxima appear in winter, and minima in summer, with the opposite true for CODMn. Accurate understanding of long-term trends and seasonality are necessary goals of water quality monitoring system efforts and the analysis methods described here provide essential information for effectively controlling water pollution.

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Section: Resultssupporting

confidence: 92%

Identification of long-term trends and seasonality in high-frequency water quality data from the Yangtze River basin, China

Duan

Chen

et al. 2018

PLoS ONE

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“…They are also prone to accumulation of microplastics as they have long been regarded to be a sink for sediments and pollutants (Eulie et al, 2018). Estuaries are microplastic pollution hotspot where microplastics comprised more than 90% of total number plastics (Fok and Cheung, 2015;Zhao et al, 2015). Microplastic can also be directly transported into the marine environment via coastal tourism and recreation, commercial fishing, and marine industries, as well as direct dumping into the ocean.…”

Section: Microplastics In Aquatic Ecosystemsmentioning

confidence: 99%

Understanding microplastics in aquatic ecosystems – A mini review

Soo

Sabana²,

Chen³

et al. 2021

Borneo J. Mar. Sci. Aqua

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Microplastic is defined as plastic debris with a size less than 5mm. It is characterized based on colour, shape, and polymer type. Microplastics have been discovered in a variety of aquatic environments, including freshwater, estuarine, and marine waters. The presence of microplastic in aquatic systems poses a threat not only to aquatic organisms, but to human consumers of food harvested from these environments. This paper reviews the key characteristics of microplastics, how they contaminate aquatic ecosystems, and their effects on aquatic organisms. Efforts have been made to highlight the knowledge gaps in these areas and measures that deserve attention for addressing the problem.

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Water quality assessment and pollution source apportionment using multi-statistic and APCS-MLR modeling techniques in Min River Basin, China

Zhang

et al. 2020

Environ Sci Pollut Res

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Water Quality Assessment and Apportionment of Pollution Sources of Selected Pollutants in the Min Jiang, a Headwater Tributary of The Yangtze River

Cited by 4 publications

References 20 publications

Identification of long-term trends and seasonality in high-frequency water quality data from the Yangtze River basin, China

Identification of long-term trends and seasonality in high-frequency water quality data from the Yangtze River basin, China

Understanding microplastics in aquatic ecosystems – A mini review

Water quality assessment and pollution source apportionment using multi-statistic and APCS-MLR modeling techniques in Min River Basin, China

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