Surface water quality of factory-based and vegetable-based peri-urban areas in the Yangtze River Delta region, China

Zhang, Qingli; Shi, Xuezheng; Huang, Biao; Yu, Dongsheng; Öborn, Ingrid; Blombäck, Karin; Wang, Hongjie; Pagella, Tim; Sinclair, F.L.

doi:10.1016/j.catena.2006.04.012

Cited by 48 publications

(27 citation statements)

References 15 publications

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“…The pollutants, especially nutrients were mainly from domestic sewage, industrial effluents, agriculture fertilizer and marine culture [10]. Similar results were also reported in the Yangtze River Delta where most rivers are heavily contaminated by higher concentrations of N and P related to chemical compounds, especially in the peri-urban areas [24,59]. In the Ebro Delta, Spain where river water received pollutants mainly from industrial effluents, agricultural wastewater, and a large amount of pesticides annual input [60].…”

Section: Pollution Source Induced Changes Of Water Quality Between Drsupporting

confidence: 79%

“…Similar seasonal variation in concentration of BOD 5 was also observed in the Fuji river basin, Japan by Shrestha and Kazama [46]. This might be induced by excessive dilution effect arising from plenty of rainfall and inflow from upstream in wet season [12,24]. In this region, precipitation is different in dry and wet seasons; there is a large amount of rainfall in wet season from April to September, but little from October to March [47].…”

Section: Water Quality Variation and Correlation Of Water Quality Parsupporting

confidence: 56%

“…Furthermore, river water quality is also influenced by stream flow [23], which is related to local rainfall level and seasonal variation [24]. The reduction of stream flow might lead to an increase of contaminant concentration.…”

Section: Introductionmentioning

confidence: 99%

“…Prathumratana et al [23] presented that there was positive correlations between hydrological parameters (such as precipitation, mean water level, stream flow) and some water quality parameters (such as COD Mn , BOD 5 , NH þ 4 ). In general, the concentrations of pollutants in surface waters are significantly higher during the dry season than that during the wet season, which is due to the dilution by large amount of rainfall and stream flow from upstream in the wet season [12,24]. During the wet period, the rainfall intensity and runoff all influence the dilution effects of accumulated contaminants and their transportation to the receiving water [25,26].…”

Section: Introductionmentioning

confidence: 99%

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Water Quality Management Based on Division of Dry and Wet Seasons in Pearl River Delta, China

Fan

Cui

Zhang

et al. 2012

CLEAN Soil Air Water

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In the Pearl River Delta (PRD), river water quality deteriorates continually due to the population increase and ongoing industrialization and urbanization. In this study, a water quality management paradigm based on the seasonal variation is proposed. For better exploring the seasonal change of water quality, wavelet analysis was used to analyze the division of dry and wet seasons in the PRD during 1952PRD during -2009. Then water quality seasonal variation in 2008 and relevant impact factors were analyzed by multivariate statistic methods as a case to make some management measures. The results show that there are some differences of dry and wet seasons division among different years. Wet season mainly appear from April to September, which occupy the largest proportion among the 58 years (about 70%) and then followed by the wet season from May to October (about 13.8% of the total years). As to the water quality of 2008, significant differences exist between dry and wet seasons for 17 water quality parameters except TP, NO À 3 , Fe 2þ , and Zn 2þ . Levels of parameters pH, EC, COD Mn , BOD 5 , NH þ 4 , SO 2À 4 , and Cl À in dry season are much higher than those in wet season. In dry season the variations of river water quality are mainly influenced by domestic sewage, industrial effluents, and salt water intrusion. While in wet season, except the aforementioned pollution sources, drainages from cultivated land and livestock farm are also the main factors influencing water pollution. Thus, water quality management measures are proposed in dry and wet seasons, respectively. The results obtained from this study would further facilitate water quality protection and water resources management in the PRD.

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Section: Pollution Source Induced Changes Of Water Quality Between Drsupporting

confidence: 79%

Section: Water Quality Variation and Correlation Of Water Quality Parsupporting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Water Quality Management Based on Division of Dry and Wet Seasons in Pearl River Delta, China

Fan

Cui

Zhang

et al. 2012

CLEAN Soil Air Water

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“…Human activities such as discharge of industrial and domestic effluents, the use of agricultural chemicals, land use and cover changes are the major factors that influence surface water quality (Peters and Meybeck 2000;Buck et al 2004;Alam et al 2006;Zhang et al 2007;Hussain et al 2008).…”

Section: Anthropogenic Sources Affecting Water Quality In Urban Areasmentioning

confidence: 99%

Influences of natural and anthropogenic factors on surface and groundwater quality in rural and urban areas

Khatri¹,

Tyagi²

2014

Frontiers in Life Science

797

283

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Although water constitutes 71% of the earth's surface, only 0.3% of it is available as fresh water for human use. Moreover, the quality of fresh water in ground and surface systems is of great concern, as potable water needs to have appropriate mineral content. Ground and surface water quality in rural and urban environments is affected by both natural processes and anthropogenic influences. Because of this, water is becoming scarcer as the population increases across the world. Natural processes leading to changes in water quality include weathering of rocks, evapotranspiration, depositions due to wind, leaching from soil, run-off due to hydrological factors, and biological processes in the aquatic environment. These natural processes cause changes in the pH and alkalinity of the water, and also phosphorus loading, increase in fluoride content and high concentrations of sulphates. Anthropogenic factors affecting water quality include impacts due to agriculture, use of fertilizers, manures and pesticides, animal husbandry activities, inefficient irrigation practices, deforestation of woods, aquaculture, pollution due to industrial effluents and domestic sewage, mining, and recreational activities. These anthropogenic influences cause elevated concentrations of heavy metals, mercury, coliforms and nutrient loads. This paper studies the effects of natural processes and human influences in rural and urban aquatic systems. Pollution due to environmental parameters such as heavy metal pollution, heavy metals and bacterial and pathogenic contamination of both urban and rural areas is discussed in detail.

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The Impact of Seasonal Changes on the Trends of Physicochemical, Heavy Metal and Microbial Loads in Water Resources of Southeastern Nigeria: A Critical Review

et al. 2023

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Surface water quality of factory-based and vegetable-based peri-urban areas in the Yangtze River Delta region, China

Cited by 48 publications

References 15 publications

Water Quality Management Based on Division of Dry and Wet Seasons in Pearl River Delta, China

Water Quality Management Based on Division of Dry and Wet Seasons in Pearl River Delta, China

Influences of natural and anthropogenic factors on surface and groundwater quality in rural and urban areas

The Impact of Seasonal Changes on the Trends of Physicochemical, Heavy Metal and Microbial Loads in Water Resources of Southeastern Nigeria: A Critical Review

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