Urban environment improvement assessment by using hedonic price: Impact of city water system project in china

2017 ◽  
Vol 37 (4) ◽  
pp. 1339-1347 ◽  
Author(s):  
Yuxi Luo ◽  
Sheng Li ◽  
Yifei Zhang
Keyword(s):  
Urban Environment ◽  
Water System ◽  
Price Impact ◽  
Hedonic Price ◽  
City Water ◽  
System Project ◽  
Improvement Assessment

Comprehensive Evaluation for Tao Huaxi Ecological Water System Project in Lanzhou

2011 ◽  
Vol 374-377 ◽  
pp. 750-753
Author(s):  
Yu Ping Liu ◽  
Yan Long Zhao ◽  
Xue Ying Bao
Keyword(s):  
Comprehensive Evaluation ◽  
Water System ◽  
Correlation Method ◽  
Ideal Solution ◽  
System Matrix ◽  
Grey Relation Analysis ◽  
Grey Correlation ◽  
Relation Analysis ◽  
System Project ◽  
Grey Relation

Using AHP to establish the water ecological projects, and conduct a series of index system matrix to determine the weights of each index, and according to the weight of each index combining grey correlation method to conduct grey relation analysis between ideal scheme and different scheme, and determined an ideal solution for ecological water system projects in Lanzhou with a clear comprehensive evaluation.

Planning of Small Town Water System by the “Pollution Treatment, Increase Income and Decrease Expenditure” Strategy: A Case Study on Liu-Yang City

2012 ◽  
Vol 209-211 ◽  
pp. 1888-1891
Author(s):  
Yong Hui Qin ◽  
Xiao Wu ◽  
Zhen Guo Yin ◽  
Jin Xian Xiao
Keyword(s):  
Small Town ◽  
Water System ◽  
System Planning ◽  
Landscape Water ◽  
Pollution Treatment ◽  
Supply Planning ◽  
City Water ◽  
Water Resources Protection ◽  
Set Up

Along of the rapid socio-economic development, population growth and the development of urbanization, the contradictions of water’s supplying and demanding in city are growing. Author advanced the Liu-yang city should strengthen water system planning and Set up a beautiful environment with resource advantage. Analyze the Liu-yang city water system’s current situation and issue by the “Pollution Treatment, Increase Income and Decrease Expenditure” strategy. Explored the small town water system’s planning from the main city zone water system planning, water resources protection and water supply planning, landscape water system planning.

scholarly journals Children drinking private well water have higher blood lead than those with city water

2020 ◽  
Vol 117 (29) ◽  
pp. 16898-16907 ◽  
Author(s):  
Jacqueline MacDonald Gibson ◽  
Michael Fisher ◽  
Allison Clonch ◽  
John M. MacDonald ◽  
Philip J. Cook
Keyword(s):  
Drinking Water ◽  
Water System ◽  
Blood Lead ◽  
Water Source ◽  
Drinking Water Source ◽  
Source Information ◽  
Community Water ◽  
Pb Exposure ◽  
City Water ◽  
Private Wells

Although the Flint, Michigan, water crisis renewed concerns about lead (Pb) in city drinking water, little attention has been paid to Pb in private wells, which provide drinking water for 13% of the US population. This study evaluates the risk of Pb exposure in children in households relying on private wells. It is based on a curated dataset of blood Pb records from 59,483 North Carolina children matched with household water source information. We analyze the dataset for statistical associations between children’s blood Pb and household drinking water source. The analysis shows that children in homes relying on private wells have 25% increased odds (95% CI 6.2 to 48%,P< 0.01) of elevated blood Pb, compared with children in houses served by a community water system that is regulated under the Safe Drinking Water Act. This increased Pb exposure is likely a result of corrosion of household plumbing and well components, because homes relying on private wells rarely treat their water to prevent corrosion. In contrast, corrosion control is required in regulated community water systems. These findings highlight the need for targeted outreach to prevent Pb exposure for the 42.5 million Americans depending on private wells for their drinking water.

Design of a City Water System

1923 ◽  
Vol 10 (3) ◽  
pp. 405-410
Author(s):  
J. D. Galloway
Keyword(s):  
Water System ◽  
City Water

Risk Assessment of City Water Logging Based on the Model of Storm Water System

ICPTT 2013 ◽  
2013 ◽  
Author(s):  
Jing Luo ◽  
Changxing Li ◽  
Ronghe Wang ◽  
Xiaoxue Wang ◽  
Haibo Yang
Keyword(s):  
Risk Assessment ◽  
Water System ◽  
Storm Water ◽  
Water Logging ◽  
City Water

The scope of integrated modelling: system boundaries, sub-systems, scales and disciplines

2006 ◽  
Vol 54 (6-7) ◽  
pp. 405-413 ◽  
Author(s):  
T.G. Schmitt ◽  
W.C. Huber
Keyword(s):  
System Analysis ◽  
Water Cycle ◽  
Water System ◽  
Integrated Modelling ◽  
Urban Drainage ◽  
Urban Water ◽  
System Boundaries ◽  
Urban Water System ◽  
System Project ◽  
Modelling System

Integrated modelling has become an urgent issue of urban drainage and wastewater treatment planning. The scope of integrated modelling, system boundaries and disciplines to be involved are addressed in view of future developments and new paradigms in urban drainage, demanding the inclusion of the full urban water cycle. A system analysis is demonstrated to identify relevant sub-systems and components, processes and interactions within the urban water system. The permissibility to exclude subsystems or neglect interactions is evaluated. Integrated modelling of urban water system is characterised as an ambitious task in regard to system complexity, heterogeneous scales and interface problems. The methodical status quo is characterised in preliminary approaches towards integrated modelling. It is concluded that it does not seem promising to create and apply one entity model for the scope of integrated urban water modelling. Instead, the development of adequate and efficient IT frameworks is identified as the key issue of integrated modelling. Harmonising interfaces to facilitate the linking of existing models is presented as the objective of a European research project HarmonIT and the U.S. EPA Multimedia Integrated Modelling System project MIMS.

Communitywide cryptosporidiosis outbreak associated with a surface water-supplied municipal water system – Baker City, Oregon, 2013

2015 ◽  
Vol 144 (2) ◽  
pp. 274-284 ◽  
Author(s):  
M. B. DeSILVA ◽  
S. SCHAFER ◽  
M. KENDALL SCOTT ◽  
B. ROBINSON ◽  
A. HILLS ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Attack Rate ◽  
Water System ◽  
Drinking Water Treatment ◽  
Drinking Water Contamination ◽  
Filter Water ◽  
Cattle Faeces ◽  
City Water ◽  
Water Treatments

SUMMARYCryptosporidium, a parasite known to cause large drinking and recreational water outbreaks, is tolerant of chlorine concentrations used for drinking water treatment. Human laboratory-based surveillance for enteric pathogens detected a cryptosporidiosis outbreak in Baker City, Oregon during July 2013 associated with municipal drinking water. Objectives of the investigation were to confirm the outbreak source and assess outbreak extent. The watershed was inspected and city water was tested for contamination. To determine the community attack rate, a standardized questionnaire was administered to randomly sampled households. Weighted attack rates and confidence intervals (CIs) were calculated. Water samples tested positive for Cryptosporidium species; a Cryptosporidium parvum subtype common in cattle was detected in human stool specimens. Cattle were observed grazing along watershed borders; cattle faeces were observed within watershed barriers. The city water treatment facility chlorinated, but did not filter, water. The community attack rate was 28·3% (95% CI 22·1–33·6), sickening an estimated 2780 persons. Watershed contamination by cattle probably caused this outbreak; water treatments effective against Cryptosporidium were not in place. This outbreak highlights vulnerability of drinking water systems to pathogen contamination and underscores the need for communities to invest in system improvements to maintain multiple barriers to drinking water contamination.

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