Journal ArticleDOI
Assessment of the environmental significance of nutrients and heavy metal pollution in the river network of Serbia
TLDR
Principal component analysis/factor analysis (PCA/FA) showed that the dissolved metals and nutrients in the Serbian rivers varied depending on the river, the heterogeneity of the anthropogenic activities in the basins, and natural environmental variability, such as geological characteristics.Abstract:
In this paper, the data for ten water quality variables collected during 2009 at 75 monitoring sites along the river network of Serbia are considered. The results are alarming because 48% of the studied sites were contaminated by Ni, Mn, Pb, As, and nutrients, which are key factors impairing the water quality of the rivers in Serbia. Special attention should be paid to Zn and Cu, listed in the priority toxic pollutants of US EPA for aquatic life protection. The employed Q-model cluster analysis grouped the data into three major pollution zones (low, moderate, and high). Most sites classified as "low pollution zones" (LP) were in the main rivers, whereas those classified as "moderate and high pollution zones" (MP and HP, respectively) were in the large and small tributaries/hydro-system. Principal component analysis/factor analysis (PCA/FA) showed that the dissolved metals and nutrients in the Serbian rivers varied depending on the river, the heterogeneity of the anthropogenic activities in the basins (influenced primarily by industrial wastewater, agricultural activities, and urban runoff pollution), and natural environmental variability, such as geological characteristics. In LP dominated non-point source pollution, such as agricultural and urban runoff, whereas mixed source pollution dominated in the MP and HP zones. These results provide information to be used for developing better pollution control strategies for the river network of Serbia.read more
Citations
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Journal ArticleDOI
Heavy metal pollution in immobile and mobile components of lentic ecosystems-a review.
Ramakrishnan Anu Alias Meena,Ramakrishnan Anu Alias Meena,Palanivel Sathishkumar,Fuad Ameen,Abdull Rahim Mohd Yusoff,Feng Long Gu +5 more
TL;DR: It is concluded that natural phenomena dominate the accumulation of essential heavy metals in lentic ecosystems compared to anthropogenic sources.
Journal ArticleDOI
Nonpoint Source Pollution
TL;DR: The causes, impacts, and methods used to mitigate nonpoint source pollution were reviewed, and innovative technologies to reduce nonpoint sources pollution were also reviewed in this paper.
Journal ArticleDOI
Soil nutrients and heavy metal availability under long-term combined application of swine manure and synthetic fertilizers in acidic paddy soil
Muhammad Qaswar,Liu Yiren,Huang Jing,Liu Kaillou,Muhammad Mudasir,Lv Zhenzhen,Hou Hongqian,Lan Xianjin,Ji Jianhua,Waqas Ahmed,Li Dongchu,Zhang Huimin +11 more
TL;DR: In this article, the authors investigated the soil fertility and heavy metal pollution risk under long-term fertilization in acidic paddy soil, and showed that combined application at the rate of 70% inorganic fertilization and 30% of manure could be better strategy to produce high crop yield with minimum risk of heavy metal contamination in soil and food crops.
Journal ArticleDOI
Dissolved trace elements in Hooghly (Ganges) River Estuary, India: Risk assessment and implications for management.
Soumita Mitra,Santosh Kumar Sarkar,Pushpanathan Raja,Jayanta Kumar Biswas,Kadarkarai Murugan +4 more
TL;DR: The study presents a spatio-seasonal distribution of 13 trace elements in the surface water along the north-south gradient of Hooghly River Estuary, India, and subsequently evaluates the human health risk by adopting USEPA standards.
Journal ArticleDOI
Spatio-temporal variational characteristics analysis of heavy metals pollution in water of the typical northern rivers, China
Hongwei Lu,Sen Yu,Sen Yu +2 more
TL;DR: In this paper, a multivariate statistical analysis method was applied to the hydrological data of the Songhua River basin in order to examine the relation between human activities and the spatio-temporal change of heavy metals (Pb and Cu) in water.
References
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TL;DR: The most widely read reference in the water industry, Water Industry Reference as discussed by the authors, is a comprehensive reference tool for water analysis methods that covers all aspects of USEPA-approved water analysis.
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TL;DR: In this paper, the authors present a perspective of the global cycle of nitrogen and phosphorous, the global water cycle, and the global sulfur cycle from a global point of view.
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TL;DR: In this article, the authors present a set of confidence limits of the geometric mean for a log-normal distribution for a given value and the confidence limits for a large sample for a small sample.
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TL;DR: The origin of Porosity and permeability of ground water is discussed in this article, along with a discussion of the role of mass transport in ground water flow in the Basin Hydrologic Cycle.