Health risks from exposure to untreated wastewater used for irrigation in the Mezquital Valley, Mexico: A 25-year update

Contreras, Jesse D.; Meza, Rafael; Siebe, Christina; Rodríguez-Dozál, Sandra; López‐Vidal, Yolanda; Castillo-Rojas, Gonzalo; Amieva, Rosa I.; Solano-Gálvez, Sandra Georgina; Mazarí-Hiriart, Marisa; Silva-Magaña, Miguel Atl; Vázquez-Salvador, Nallely; Rosas‐Pérez, Irma; Romero, Leticia Martínez; Cortez, Eva Salinas; Riojas-Rodríguez, Horacio; Eisenberg, Joseph N.S.

doi:10.1016/j.watres.2017.06.058

Cited by 70 publications

(44 citation statements)

References 61 publications

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“…This situation provides fewer economic options to evaluate financial returns of other available crops, and Maneadero farmers decline to invest in high quality wastewater treatment. In other parts of Mexico, such as the Mezquital Valley [42], farmers use raw wastewater for eatable crops (non-export), despite the health risks and the aforementioned legal restrictions [42,43]. As for direct aquifer recharge, RW must meet the quality regulations established in the NOM-127-SSA1-1994 for drinking water.…”

Section: Coherent Water Quality Requirementsmentioning

confidence: 99%

Regulatory Challenges for the Use of Reclaimed Water in Mexico: A Case Study in Baja California

Gilabert-Alarcón

Salgado-Méndez

Daesslé

et al. 2018

Water

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In Mexico, water planning is based on the National Water Law, the core of which is Integrated Water Resources Management (IWRM). The municipality provides wastewater treatment and reuse, and an integrated approach is mandatory for these processes. However, a traditional (non-integrated) management regime has prevailed in water legislation, resulting in pollution and the inefficient use of water. The objectives of this research were to analyze the Mexican legal framework and international guidelines in the use of reclaimed water for agricultural irrigation and environmental discharges, and to evaluate challenges facing reclaimed water in the Maneadero Valley, Baja California, as a case study. Results show that wastewater reuse was implemented in the absence of integrative planning and assessment of the potential impacts on the environment and public health. In addition, gaps between decisions linked to the legal attributes of the relevant institutions were identified. Defined roles across the three levels of authority, transparent and congruent funding, coherent water-quality requirements and the strengthening of stakeholder participation are needed to adopt integrated water resource management for reclaimed water use. The alignment of common goals on public health, environmental protection and agricultural development between authorities and the different sectors is crucial to bridge these challenges.

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Section: Coherent Water Quality Requirementsmentioning

confidence: 99%

Regulatory Challenges for the Use of Reclaimed Water in Mexico: A Case Study in Baja California

Gilabert-Alarcón

Salgado-Méndez

Daesslé

et al. 2018

Water

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“…Besides, untreated wastewater on natural streams promotes eutrophication affecting aquatic biodiversity, even at the microorganism level [38]. Also, wastewater contains potentially harmful pathogens, antibiotic resistant bacteria and even toxic or biologically disruptive chemicals, which could affect human health for exposed population, as reported in Contreras et al [39]. Besides, emerging pollutants, such as pharmaceuticals, personal care products, hormones and others are being detected in urban wastewater; these pollutants increase the risk of diseases [40].…”

Section: Wastewater Production Analysismentioning

confidence: 98%

Potential Uses of Treated Municipal Wastewater in a Semiarid Region of Mexico

Ramos¹,

Gonzalez²,

Echeverri

et al. 2019

Sustainability

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This paper presents an assessment of three potential applications of municipal treated wastewater in a semiarid region of northern Mexico. The potential applications considered are agriculture, industry, and watering urban green areas. The results indicate that in the best scenario, the maximal application of treated wastewater is 150 L/s for industrial activities. Besides industrial applications, this scenario would allow farmers and urban green areas to receive 980 L/s and 70 L/s of treated wastewater respectively. Other issues and alternatives are also identified. With the implementation of this scenario, it is possible to improve the environmental, and even the socioeconomic conditions, of the study region.

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“…In order to fertilize vegetables, practices such as direct planting behind toilets are common. These practices are considered as cheap alternative to inorganic fertilizer, real irrigation practice as well as convenient (Agele, Adeyemo, & Famuwagun, 2011;Oyedeji, Animasaun, Bello, & Agboola, 2014;Contreras et al, 2017). Common vegetables cultivated in this manner are Indian spinach (Basella alba), fluted pumpkin (Telfeira occidentalis), Catholic vegetable (Jatropha tanjorensis) and water leaf (Talinum fruticosum).…”

Section: Combating Poverty Hunger and Malnutrition: Ignorance Birthmentioning

confidence: 99%

Wastewater conservation and reuse in quality vegetable cultivation: Overview, challenges and future prospects

et al. 2019

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The serious water scarcity experienced across the globe and the desire for sufficient food production all year round to combat hunger, poverty and malnutrition necessitate the need for wastewater reuse in irrigation. Wastewater has varied compositions that affect the growth of different crops positively, they may also be a source of dangerous pollutant. Heavy consumption of vegetables have been encouraged for its nutritional and health advantages. Hence, their production and cultivation have increased globally. While the nutritional advantage of vegetables is appealing, their high susceptibility to harbor and spread pathogenic microbes call for serious concern. Activities such as transportation, improper handling and packaging amongst others are sources of vegetable contamination. Irrigation water and techniques however present greater danger. Agro-industrial wastewater of a ready-to-eat vegetable (RTEv) industry operating a closed system may reintroduce microbes to vegetable gardens. The use of raw domestic wastewater, either black or grey water in vegetable cultivation presents attendant challenges which must be handled with utmost precaution. This review is focused on the dangers associated with the reuse of agro-industrial and domestic wastewater, precautions required as well as possible preventive/reduction measures. The possible dangers associated with "crude irrigation techniques" used in vegetable cultivation in the Southwestern part of Nigeria are presented. This work will no doubt serve as a tool for policy makers and environmentalists in enlightenment and awareness campaigns in educating most rural dwellers who are ignorant of these dangers.

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Health risks from exposure to untreated wastewater used for irrigation in the Mezquital Valley, Mexico: A 25-year update

Cited by 70 publications

References 61 publications

Regulatory Challenges for the Use of Reclaimed Water in Mexico: A Case Study in Baja California

Regulatory Challenges for the Use of Reclaimed Water in Mexico: A Case Study in Baja California

Potential Uses of Treated Municipal Wastewater in a Semiarid Region of Mexico

Wastewater conservation and reuse in quality vegetable cultivation: Overview, challenges and future prospects

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