Impact of fecal contamination on surface water quality in the São Francisco River hydrographic basin in Minas Gerais, Brazil

Dantas, Marina Salim; Oliveira, Josiani Cordova de; Pinto, Carolina Cristiane; Oliveira, Sílvia Corrêa

doi:10.2166/wh.2019.153

Cited by 14 publications

(6 citation statements)

References 7 publications

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“…Martinsa et al (2020) mentioned that the Pandeiros River Basin presents good ecological conditions and less environmental fragility. Rezende et al (2012) have already researched water quality in this region, which was found to be excellent; this was also proved by Dantas et al (2020). They highlighted the importance of a conservation unit for the maintenance of a healthy natural environment.…”

Section: Introductionmentioning

confidence: 87%

Evaluation of Optimal Ecological Tourism Routes Obtained via Google Earth Software in an Environmental Protection Area

Júnior

Miranda

Gonçalves

et al. 2021

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Ecological tourism stands out as an economic activity that can be reconciled with nature conservation. Such activities have been carried out in several conservation units in Brazil. However, for satisfactory implementation, it is necessary to effectively plan the activities to be conducted, places to be visited, and paths to reach those places. In this context, we aimed to assess whether Google Earth software can assist in the expansion of the plan to use these areas for ecotourism, especially the routes that may be taken by tourists within the conservation unit. For this purpose, tourist interest sites were defined in the State Environmental Protection Area of Rio Pandeiros in the northern region of the state of Minas Gerais. The shortest routes between the pairs of locations obtained using Google Earth and QGIS software were evaluated. Additionally, it was necessary to perform vectorization and classification of all roads in the area. The lengths of the paths obtained were compared using a method identity test. The results showed that for most routes, Google Earth showed longer paths than QGIS. It can be concluded that for the purpose of ecotourism, precise planning should consider the vectorization of roads in areas with many rural roads.

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Section: Introductionmentioning

confidence: 87%

Evaluation of Optimal Ecological Tourism Routes Obtained via Google Earth Software in an Environmental Protection Area

Júnior

Miranda

Gonçalves

et al. 2021

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“…In many studies where enteric pathogens and fecal contamination of water sources are investigated, the primarily focus on one type of organism [3][4][5][6][7]. However, bacteria and viruses are both found in human feces, but their structural differences create variations in the persistence and efficacy of water treatment technologies.…”

Section: Introductionmentioning

confidence: 99%

Zero-Valent Iron Filtration Reduces Microbial Contaminants in Irrigation Water and Transfer to Raw Agricultural Commodities

et al. 2021

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Groundwater depletion is a critical agricultural irrigation issue, which can be mitigated by supplementation with water of higher microbiological risk, including surface and reclaimed waters, to support irrigation needs in the United States. Zero-valent iron (ZVI) filtration may be an affordable and effective treatment for reducing pathogen contamination during crop irrigation. This study was performed to determine the effects of ZVI filtration on the removal and persistence of Escherichia coli, and pepper mild mottle virus (PMMoV) in irrigation water. Water was inoculated with E. coli TVS 353, filtered through a ZVI filtration unit, and used to irrigate cucurbit and cruciferous crops. Water (n = 168), leaf (n = 40), and soil (n = 24) samples were collected, the E. coli were enumerated, and die-off intervals were calculated for bacteria in irrigation water. Variable reduction of PMMoV was observed, however E. coli levels were consistently and significantly (p < 0.05) reduced in the filtered (9.59 lnMPN/mL), compared to unfiltered (13.13 lnMPN/mL) water. The die-off intervals of the remaining bacteria were significantly shorter in the filtered (−1.50 lnMPN/day), as compared to the unfiltered (−0.48 lnMPN/day) water. E. coli transfer to crop leaves and soils was significantly reduced (p < 0.05), as expected. The reduction of E. coli in irrigation water and its transfer to crops, by ZVI filtration is indicative of its potential to reduce pathogens in produce pre-harvest environments.

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“…Contamination in drinking water poses a serious threat to public health (Dantas et al, 2020;Hu et al, 2020;Ravindra and Mor, 2019). As the use of unsafe or contaminated drinking water cause many public health issues, such as diarrhoea, cholera, and hepatitis, etc.…”

Section: Introductionmentioning

confidence: 99%

Household Perceptions about Drinking Water Quality and Human Health: A Comparative Analysis of Urban and Rural Areas in Pakistan

Zafar

Ali

Hassan

et al. 2020

NRJSS

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Public awareness about safe drinking water plays a significant role in household choices for drinking water sources and the prevention measures of water contamination. The present study was aimed to explore the awareness of households about groundwater quality and investigate the incidence of waterborne diseases in comparison with urban and rural households. Primary data were collected from 600 households by using the stratified random sampling technique. To analyze the outcomes descriptive and graphical approaches were used, however, to check the association between water sources and waterborne diseases bi-variate techniques were employed. It was found that the households belonging to urban localities were more aware about health risks associated with drinking water quality. Outcomes disclosed that on an average 48.8% of the household’s get affected from drinking water quality and face waterborne diseases, however, the incidence were greater (49.7%) in rural households compared to (48.0%) urban households. Findings also revealed that on an average 58.8% of the households suffered from belly pain and stomach problems and its incidence were 60.4% and 57.4% in rural and urban areas, respectively. Results disclosed that household’s income and medical expenditures were significantly associated with drinking water facility. It is suggested that the awareness about water quality should be disseminated among households in order to reduce the incidence of waterborne diseases.

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Impact of fecal contamination on surface water quality in the São Francisco River hydrographic basin in Minas Gerais, Brazil

Cited by 14 publications

References 7 publications

Evaluation of Optimal Ecological Tourism Routes Obtained via Google Earth Software in an Environmental Protection Area

Evaluation of Optimal Ecological Tourism Routes Obtained via Google Earth Software in an Environmental Protection Area

Zero-Valent Iron Filtration Reduces Microbial Contaminants in Irrigation Water and Transfer to Raw Agricultural Commodities

Household Perceptions about Drinking Water Quality and Human Health: A Comparative Analysis of Urban and Rural Areas in Pakistan

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