gchange  > 过去全球变化的重建
DOI: 10.1371/journal.pone.0102081
Title:
Final Opportunity to Rehabilitate an Urban River as a Water Source for Mexico City
Author: Marisa Mazari-Hiriart; Gustavo Pérez-Ortiz; María Teresa Orta-Ledesma; Felipe Armas-Vargas; Marco A. Tapia; Rosa Solano-Ortiz; Miguel A. Silva; Isaura Yañez-Noguez; Yolanda López-Vidal; Carlos Díaz-Ávalos
Source Publication: PLOS ONE
ISSN: 1932-6203
Indexed By: SCI-E
Publishing Year: 2014
Date Published: 2014-7-23
Volume: 9, Issue:7
Keyword: Rivers ; Surface water ; Water quality ; Urban areas ; Water resources ; Mexico ; Giardia lamblia ; Water pollution
Subject in Chinese: 灌溉 ; ; 城市地区 ; 人口 ; 公共健康 ; 可持续性 ; 导电性 ; 水质 ; 地表水
Subject: IRRIGATION ; LEAD ; URBAN AREAS ; POPULATION ; PUBLIC HEALTH ; SUSTAINABILITY ; CONDUCTIVITY ; WATER QUALITY ; SURFACE WATER
English Abstract: The aim of this study was to evaluate the amount and quality of water in the Magdalena-Eslava river system and to propose alternatives for sustainable water use. The system is the last urban river in the vicinity of Mexico City that supplies surface water to the urban area. Historical flow data were analyzed (1973–2010), along with the physicochemical and bacteriological attributes, documenting the evolution of these variables over the course of five years (2008–2012) in both dry and rainy seasons. The analyses show that the flow regime has been significantly altered. The physicochemical variables show significant differences between the natural area, where the river originates, and the urban area, where the river receives untreated wastewater. Nutrient and conductivity concentrations in the river were equivalent to domestic wastewater. Fecal pollution indicators and various pathogens were present in elevated densities, demonstrating a threat to the population living near the river. Estimates of the value of the water lost as a result of mixing clean and contaminated water are presented. This urban river should be rehabilitated as a sustainability practice, and if possible, these efforts should be replicated in other areas. Because of the public health issues and in view of the population exposure where the river flows through the city, the river should be improved aesthetically and should be treated to allow its ecosystem services to recover. This river represents an iconic case for Mexico City because it connects the natural and urban areas in a socio-ecological system that can potentially provide clean water for human consumption. Contaminated water could be treated and reused for irrigation in one of the green areas of the city. Wastewater treatment plants and the operation of the existing purification plants are urgent priorities that could lead to better, more sustainable water use practices in Mexico City.
Related Link: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0102081
Citation statistics:
被引频次[WOS]:13   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Identifier: http://119.78.100.177/globalchange/handle/2HF3EXSE/14648
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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Affiliation: Laboratorio Nacional de Ciencias de la Sostenibilidad, Departamento de Ecología de la Biodiversidad, Instituto de Ecología, Universidad Nacional Autónoma de México, México, D.F., México

Recommended Citation:
Marisa Mazari-Hiriart,Gustavo Pérez-Ortiz,María Teresa Orta-Ledesma,et al. Final Opportunity to Rehabilitate an Urban River as a Water Source for Mexico City[J]. PLOS ONE,2014-01-01,9(7)
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