scholarly journals Risk Assessment of Upper-Middle Reaches of Luanhe River Basin in Sudden Water Pollution Incidents Based on Control Units of Water Function Areas

Water ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1268 ◽  
Author(s):  
Yao Xiao ◽  
Suiliang Huang ◽  
Jianguo Zhou ◽  
Fanqing Kong ◽  
Mingzhe Liu ◽  
...  
Keyword(s):  
Water Pollution ◽  
River Basin ◽  
Environmental Risk ◽  
Evaluation Method ◽  
Luanhe River Basin ◽  
Control Units ◽  
Risk Sources ◽  
Risk Zones ◽  
Risk Source ◽  
Sudden Water Pollution

Upper-middle reaches of Luanhe River Basin belongs to Haihe River Basin and it is a pretty important water source to North China, especially to Tianjin and Tangshan Cities, Hebei. Based on control units of the water function areas and the sub-basins the working units were produced. The index system for environmental risk source hazard was constructed by adopting the pressure state response (PSR) environmental analysis model. The environment risk sources are identified, and their hazard grade assessment is performed. In the environmental risk source hazard an assessment index system, namely “downstream characteristics of environmental risk sources” is added by taking the fact into account that environmental risk sources themselves are affected by different functional areas (working units) downstream of the rivers. Through collecting hazard data, determining their standards and weights for environment risk sources, the fuzzy comprehensive evaluation method is used to calculate the risk source hazard grades and the vulnerability grades of the working units. Using the one-dimensional exponential decay river model for pollutants in rivers, the hazard grade evaluation method of working units is established. This consists of two parts: (1) The risk source hazard grade of the working unit itself, and (2) the impact of the risk sources upstream on the working unit downstream of the rivers. Combining the hazard grade with the vulnerability grade of the working unit, the risk grade of the working unit is evaluated through the risk matrix. The risk zones of the watershed are realized by merging working units in the same control units of the water function areas with the same risk grades. The risk zoning of sudden water pollution incidents in the upper and middle reaches of Luanhe River Basin is obtained by applying the above risk zoning method. It is found that there are 55 risk zones in total, including three highest risk zones, 15 higher risk zones, 14 lower risk zones, 23 lowest risk zones. These results indicate that the upper and middle reaches of River Luanhe are overall at low risk. The corresponding management methods for the different risk zones are suggested.

Study on Sudden Water Pollution Incidents of Guangdong Huanggang River

2011 ◽  
Vol 99-100 ◽  
pp. 131-135
Author(s):  
Yong Li Zhang ◽  
Min Xiao ◽  
Wei Hao Zheng
Keyword(s):  
Water Pollution ◽  
Water Resources ◽  
River Basin ◽  
Water Bodies ◽  
Adverse Impacts ◽  
Short Period ◽  
Treatment Measures ◽  
Sudden Water Pollution

Sudden water pollution incidents are incidents that the pollutants affected by some unexpected factors following into water bodies, resulting in contamination of water resources within a short period, which will lead to emergencies of adverse impacts on society. According to the ways of pollutants following into water bodies, sudden water pollution incidents could be classified into four categories. Sudden water pollution incidents have potentially risks, and some positive approaches should be adopted to control them. Those have been discussed in the research that three sudden water pollution incidents having taken place in Huanggang River basin and their treatment measures, and the four hidden pollution hazards existing in Huanggang river basin have been analyzed.

scholarly journals Spatio-temporal variation analysis of hydrochemical characteristics in the Luanhe River Basin, China

2013 ◽  
Vol 67 (6) ◽  
pp. 1332-1338 ◽  
Author(s):  
Ying Xie ◽  
Xuyong Li ◽  
Huiliang Wang ◽  
Wenzan Li
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Temporal Variation ◽  
River Water ◽  
River Basin ◽  
Pollution Control ◽  
Spatial And Temporal Variation ◽  
Hydrochemical Characteristics ◽  
Water Pollution Control ◽  
Luanhe River Basin

The analysis of river pollution and assessment of spatial and temporal variation in hydrochemistry are essential to river water pollution control in the context of rapid economic growth and growing pollution threats in China. In this study, we focused on hydrochemical characteristics of the Luanhe River Basin (China) and evaluation of 12 hydrochemical variables obtained from 32 monitoring stations during 2001–2010. In each study year, the streams were monitored in the three hydrological periods (April, August, and October) to observe differences in the impacts of agricultural activity and rainfall pattern. Multivariate statistical methods were applied to the data set, and the river water hydrochemical characteristics were assessed using the water quality identification index (WQIIM). The results showed that parameters had variable contribution to water quality status in different months except for ammonia nitrogen (NH4-N) and total nitrogen (TN), which were the most important parameters in contributing to water quality variations for all three periods. Results of WQIIM revealed that 18 sites were classified as 'meeting standard' while the other 14 sites were classified as 'not meeting standard', with most of the seriously polluted sites located in urban area, mainly due to discharge of wastewater from domestic and industrial sources. Sites with low pollution level were located primarily in smaller tributaries, whereas sites of medium and high pollution levels were in the main river channel and the larger tributaries. Our findings provide valuable information and guidance for water pollution control and water resource management in the Luanhe River Basin.

Discussion on Construction of Control System of Environmental Risk Source for Expressway Transportation Accidents of Dangerous Chemicals in Water Environmental Sensitive Areas

2012 ◽  
Vol 204-208 ◽  
pp. 3520-3525
Author(s):  
She Gang Shao ◽  
Yi Shen ◽  
Wen Sheng Yu ◽  
Ke Jian Fu ◽  
Shao Yang Yan
Keyword(s):  
Control System ◽  
Environmental Risk ◽  
Traffic Safety ◽  
Information Transfer ◽  
Source Control ◽  
Accident Risk ◽  
Engineering Structures ◽  
Dangerous Goods ◽  
Risk Sources ◽  
Risk Source

Based on the analysis of the environmental risk characteristics of freeway dangerous chemicals transportation accidents, the environmental risk source control system, which combined the initiative prevention system and passive protection system, are proposed, and the relative subsystems are also elaborated in this article. The risk sources information transfer subsystem is composed by the security regulation platform of regional dangerous goods transportation and highway monitoring and communication system, and the function of the subsystem is transferring the public information between the highway and regional dangerous goods transportation security supervisory. Environmental risk sources prevention subsystem is comprised by the main engineering structures and traffic safety facilities, and the services of environmental accident risk defending platform, which composed by the runoff gathering facilities and reservoir.

Analysis on the warning situation of sudden water pollution for typical river under different water regime in the river network area

2020 ◽  
Author(s):  
Dayong Li
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Early Warning ◽  
Water Regime ◽  
Evaluation Method ◽  
Fuzzy Comprehensive Evaluation ◽  
River Network ◽  
Flood Season ◽  
Sudden Water Pollution ◽  
The Impact

<p>In this paper, a comprehensive early-warning method of sudden water pollution is used to systematically evaluate the hazards of sensitive receptors after accidents. A coupling model of the river network hydrodynamic and water quality for conventional pollutants and conservative substance is developed to track and predict the behavior and fate of the accidental pollution mass, the expert questionnaires and other means are used to construct a quantitative and qualitative early warning index system to describe the accidental hazard, the AHP and fuzzy comprehensive evaluation method are used to quantitatively evaluate the consequences of accidental hazards and a sudden water pollution risk early warning method based on the process of "accident occurrence-pollution prediction-consequence evaluation" is finally formed. The method is applied to the Yincungang River in the Yixing River Network, and the response of sensitive receptors to the discharge status of risk sources under different water regime is analyzed. The results show that: (a) the duration of the impact from the accident, the maximum standard-exceeding multiple of water quality and the degradation degree of water quality in the sensitive receptors are positively related to the discharge intensity or discharge time of the accident source, but the response time from the accidental impact is negatively related to them. (b) during the non-flood season, the warning situation in the Yincungang River shows a gradual decrease from upstream to downstream; during the main flood season, the warning situation in the upper and middle reaches of Yincungang River shows a decreasing trend, but in the middle and lower reaches that increases.(c) the transport distance and speed of accidental pollutants in the river and the concentration of accidental pollutants in the background at the sensitive receptors determine the quantitative early warning indexes dynamically, which is the fundamental reason for the spatial change of warning situation in different water regime.</p>

scholarly journals Source separation and apportionment of surface water pollution in the Luanhe River Basin based on non-negative matrix factorization

2019 ◽  
Vol 19 (7) ◽  
pp. 1945-1954
Author(s):  
Peifang Leng ◽  
Qiuying Zhang ◽  
Fadong Li ◽  
Yizhang Zhang ◽  
Congke Gu
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Surface Water ◽  
River Basin ◽  
Matrix Factorization ◽  
Source Separation ◽  
Substantial Contribution ◽  
Surface Water Pollution ◽  
Luanhe River Basin ◽  
Non Negative Matrix Factorization

Abstract Understanding the spatial and temporal variations and source apportionment of water pollution is important for efficient water environment management. The non-negative matrix factorization (NMF) method, which is naturally well suited for non-negative data of high dimension, was used to identify the latent factors and apportion the contributions from identified pollution sources to each water quality parameter. We obtained a data matrix with 11 water quality variables collected from 2013 to 2016 in the Luanhe River Basin in northern China. The results highlight the substantial contribution of industrial and livestock wastewater. All land-use types have a slightly weaker impact on surface water pollution during the dry season than during the rainy season. The aim of this study is to illustrate the practicability of multivariate statistical analysis, especially the application of NMF, which has major potential for source separation and the apportionment of water pollution.

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