Evaluation of the Effect of Gold Mining on the Water Quality in Monterrey, Bolívar (Colombia)

Gold mining uses chemicals that are discharged into rivers without any control when there are no good mining practices, generating environmental and public health problems, especially for downstream inhabitants who use the water for consumption, as is the case in Monterrey township, where the Boque River water is consumed. In this study, we evaluate Boque River water quality analyzing some physicochemical parameters such as pH, heavy metals, Hg, and cyanide; bioassays (Lactuca sativa, Hydra attenuata, and Daphnia magna), mutagenicity (Ames test), and microbiological assays. The results show that some physicochemical parameters exceed permitted concentrations (Hg, Cd, and cyanide). D. magna showed sensitivity and L. sativa showed inhibition and excessive growth in the analyzed water. Mutagenic values were obtained for all of the sample stations. The presence of bacteria and somatic coliphages in the water show a health risk to inhabitants. In conclusion, the presence of Cd, Hg, and cyanide in the waters for domestic consumption was evidenced in concentrations that can affect the environment and the health of the Monterrey inhabitants. The mutagenic index indicates the possibility of mutations in the population that consumes this type of water. Bioassays stand out as an alert system when concentrations of chemical contaminants cannot be analytically detected.

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Effect of Wastewater Discharge From Coffee Processing Plant on River Water Quality, Sidama Region, South Ethiopia

Environmental Health Insights ◽

10.1177/11786302211061047 ◽

2021 ◽

Vol 15 ◽

pp. 117863022110610

Author(s):

Wubalem Genanaw ◽

Girum Gebremeskel Kanno ◽

Dawit Derese ◽

Mekonnen Birhanie Aregu

Keyword(s):

Water Quality ◽

River Water ◽

Physicochemical Parameters ◽

Diversity Index ◽

Sampling Technique ◽

Diversity Indices ◽

River Water Quality ◽

Processing Plant ◽

Processing Plants ◽

Raw Wastewater

In Ethiopia, most of the coffee processing plants are generating large amounts of wastewater with high pollutant concentrations and discharge directly into the water bodies untreated or partially treated. The main objective of this study was to assess the effects of coffee wastewater discharged to river water quality using physicochemical parameters and macro-invertebrate indices. This study was conducted from November to the end of December 2019. Ten wastewater and river water samples were taken from coffee the processing plant and river. The macro-invertebrate samples were collected by kick sampling technique using a standard hand net. Shannon and Simpson diversity indices were examined at 3 sampling stations. The Pielou evenness index was also determined. It was found that except for TDS all the parameters of the raw wastewater and river water did not comply with the international discharge limit. The mean concentration of Faro coffee processing plant wastewater were BOD5 (2409.6 ± 173.1 mg/L), COD (4302 ± 437 mg/L), TSS (2824.6 ± 428.4 mg/L), TDS (3226 ± 623.6 mg/L), and TS (4183.3 ± 432.9 mg/L). Whereas from Bokaso coffee processing plant were BOD5 (3770 ± 604.4 mg/L), COD (4082.6 ± 921.9 mg/L), TSS (2766 ± 501.7 mg/L), TDS (3017 ± 747.6 mg/L), and TS (3874 ± 471.1 mg/L). A total of 392 macroinvertebrates belonging to 24 families and 7 orders were collected. The benthos assemblage communities in this river were 40, 56, and 296 at downstream 1, downstream 2, and upstream respectively. The value of the Simpson diversity index varies from 0.4 to 0.75. In the same manner, the value of the Shannon diversity index also varied from 0.5 to 1.36. Most of the physicochemical parameters of the raw wastewater were beyond the national and international discharge limits. The quality of Orsha river water downstream was more adversely affected compared to upstream.

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Water quality and fish diversity in Korotoa River of Bogura, Bangladesh

Bangladesh Journal of Fisheries ◽

10.52168/bjf.2020.32.08 ◽

2020 ◽

Vol 32 (1) ◽

pp. 60-72

Author(s):

SAMINA AHATUN ◽

MD. SIRAJUL ISLAM ◽

MD. HUMAYUN KABIR ◽

MAUSUMI REHNUMA ◽

MD. ENAMUL HOQ

Keyword(s):

Water Quality ◽

River Water ◽

Fish Species ◽

Physicochemical Parameters ◽

Industrial Effluent ◽

Domestic Sewage ◽

Fish Diversity ◽

Quality Degradation ◽

Water Fish

The study was conducted to explore the physicochemical parameters of water, fish diversity andfisheries resources of Korotoa River at Bogura city of Bangladesh during July 2015 to February 2016. Thewater samples were collected from five sampling stations in the Korotoa River during wet and dry seasons.The results of the study showed that temperature, EC, TDS, DO, BOD, alkalinity, acidity and total hardnessof the Karotoa River water were 25.86ºC, 297.41 ?S/cm, 98.86 mg/L, 2.17 mg/L, 2.64 mg/L, 122.05mg/L, 3.28 mg/L and 75.59 mg/L, respectively. The DO and BOD contents of the river water were foundunsuitable for fisheries when compared with the standard of DoE. A total of ten fish species under six ordersand seven families were identified during the study period. The study also revealed that the most remarkablecause of water quality degradation of the river was waste dumping (58%) followed by urbanization and riverbank erosion. The water quality degradation (46%) negatively influenced the abundance of fish species. Theresults concluded that the water quality of the river is not favorable for production of fishes and other aquaticorganisms. The study suggested that the source of water quality degradation should be closely monitoredtogether with the industrial effluent and/or domestic sewage discharge should be reduced or stopped throughthe initiatives of the local government concerned to maintain sound and healthy ecosystem of the river.

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Comparative Study on the Physicochemical and Bacteriological Quality of Some Drinking Water Sources in Abuja, Nigeria

10.20944/preprints201711.0144.v1 ◽

2017 ◽

Author(s):

Sadiya Atiku ◽

Chukwuma C. Ogbaga ◽

Olatunbosun O. Alonge ◽

Onyinye F. Nwagbara

Keyword(s):

Water Quality ◽

Drinking Water ◽

River Water ◽

Physicochemical Parameters ◽

Water Sources ◽

World Health ◽

Drinking Water Source ◽

Pseudomonas Spp ◽

Drinking Water Sources

Diseases caused by contaminated water consumption and poor hygiene are among the leading cause of death in children, the elderly and people with compromised immune system. The present study aims to assess the drinking water quality of some selected drinking water sources in the chosen study area using water quality index (WQI). Samples of drinking waters were collected from four different sources—river, sachet (packaged), borehole and well in Jabi, Abuja, Nigeria for physicochemical and bacteriological analyses using standard methods. With the exception of pH, river water had the highest content of all the physicochemical parameters examined. Some of the physicochemical parameters such as temperature and pH determined in this study were mostly within the World Health Organization (WHO) standard. The bacteriological analyses revealed that the highest total viable counts of 1.54 (0.12) × 102 (cfu/mL) were obtained in the river sample while the least values of 0.03 (0.00) × 102 (cfu/mL) were obtained in the sachet water. Three bacterial isolates of Escherichia coli, Pseudomonas spp and Aeromonas spp were isolated from well water while Pseudomonas spp and Proteus spp were isolated from borehole water. All other bacteria were isolated from the river. The study demonstrates that the safest drinking water source in Idu district, Jabi, Abuja is the sachet/packaged water while the least safe is the river water due to the presence of significant opportunistic pathogens. The results of this study are beneficial for water quality management and could be used for low-cost effective water quality assessment in Jabi.

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Impact of Cedzyna Reservoir on Selected Physicochemical Parameters of River Water Quality (Swietokrzyskie Mountains, Poland)

Chemistry-Didactics-Ecology-Metrology ◽

10.2478/cdem-2019-0010 ◽

2019 ◽

Vol 24 (1-2) ◽

pp. 117-125

Author(s):

Joanna Przybylska ◽

Joanna Kaleta ◽

Rafał Kozłowski

Keyword(s):

Water Quality ◽

Trace Elements ◽

River Water ◽

Physicochemical Parameters ◽

Major Ions ◽

Anthropogenic Pressure ◽

Chemical Composition Of Water ◽

The Impact ◽

Natural Characteristics

Abstract The monitoring of selected physicochemical parameters and chemical composition of water was conducted in 2017-2018 in the Lubrzanka river and the Cedzyna reservoir (Swietokrzyskie Mountains, Poland). The results indicate that the impact of reservoir on the quality of river water depends on natural characteristics of the catchment as well as on the present anthropogenic pressure. Retention of water in the reservoir caused seasonally diversified changes in analysed parameters, including an increase in water temperature, retention of major ions, nutrients and trace elements. Further research is needed to assess the risk of contamination of lower course of the river with metals deposited in reservoir’s bottom sediments.

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Comparison of Coliforms and Coliphages as Tools for Assessment of Viral Contamination in River Water

Applied and Environmental Microbiology ◽

10.1128/aem.70.6.3644-3649.2004 ◽

2004 ◽

Vol 70 (6) ◽

pp. 3644-3649 ◽

Cited By ~ 57

Author(s):

S. Skraber ◽

B. Gassilloud ◽

C. Gantzer

Keyword(s):

Water Quality ◽

Cell Culture ◽

River Water ◽

Viral Genome ◽

Water Quality Assessment ◽

River Water Quality ◽

Somatic Coliphages ◽

Viral Contamination ◽

Thermotolerant Coliforms ◽

Dna Enzyme Immunoassay

ABSTRACT The aim of the study was to evaluate the presence of pathogenic viruses in the Moselle River and to compare the usefulness of thermotolerant coliforms and somatic coliphages as tools for river water quality assessment in terms of viral contamination. Thermotolerant coliforms and somatic coliphages were enumerated by standardized methods in 170 samples of river water drawn from five sampling sites along the Moselle River (eastern France). BGM cell culture and integrated cell culture-reverse transcription-PCR DNA enzyme immunoassay were used to determine the presence of pathogenic viral genome (Enterovirus and Norovirus genogroup II [GGII]) and infectious Enterovirus spp. in 90 1-liter samples. No infectious Enterovirus spp. were isolated, but Enterovirus and Norovirus GGII genomes were detected in 38% of the samples. Norovirus GGII genome was mostly detected in winter, whereas Enterovirus genome was mostly detected in summer and fall. Somatic coliphages appeared to be less sensitive to higher river water temperature than thermotolerant coliforms. Furthermore, the number of river water samples positive for pathogenic viral genome increased with increasing concentration of somatic coliphages, whereas coliform concentration was unrelated to viral genome contamination. Consequently somatic coliphages, which are less sensitive to environmental factors than thermotolerant coliforms in river water, would provide a promising tool for assessment of river water quality in terms of fecal and viral pollution.

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Analysis of water pollution index around gold mining in the downstream of Krueng Kluet sub-watershed

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/951/1/012050 ◽

2022 ◽

Vol 951 (1) ◽

pp. 012050

Author(s):

H Basri ◽

Manfarizah ◽

H C Prayudi

Keyword(s):

Water Pollution ◽

Water Quality ◽

River Water ◽

Government Regulation ◽

Gold Mining ◽

Pollution Index ◽

Quality Standards ◽

Mining Area ◽

Water Quality Standards ◽

Water Pollution Index

Abstract Water is one of the primary needs of every living creature. With the increase in population, the need for water continues to increase. The declining water quality caused by human activities is one of the world’s concerns. This study examines river water quality status in the gold mining area in the downstream of Krueng Kluet sub-watershed. The method used to determine the level of river water pollution is based on the Decree of Minister of Environment Number 115 the Year 2003, which uses class 1 water quality standards according to Government Regulation of The Republic of Indonesia Number 82 the Year. The results show that river water in the study area is in the category that is not polluted or fulfills water quality standards for drinking water and daily needs.

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Risk Based Conflict Resolution Model for River Water Quality Management

World Environmental and Water Resource Congress 2006 ◽

10.1061/40856(200)88 ◽

2006 ◽

Author(s):

Mohammad Karamouz ◽

Ali Moridi

Keyword(s):

Water Quality ◽

Conflict Resolution ◽

Quality Management ◽

River Water ◽

Water Quality Management ◽

River Water Quality ◽

Resolution Model

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Drinking water quality and protection of resources

International Review of Applied Sciences and Engineering ◽

10.1556/irase.1.2010.1-2.8 ◽

2010 ◽

Vol 1 (1-2) ◽

pp. 51-54

Author(s):

J. Fettig

Keyword(s):

Water Quality ◽

Drinking Water ◽

Water Resources ◽

River Water ◽

Spring Water ◽

Public Water Supply ◽

Legal Requirements ◽

Reservoir Water ◽

Water Lake ◽

Treatment Step

Abstract The structure of public water supply in Germany and the water resources used are briefly described. An overview over the legal requirements for drinking water is given, and the sources for contaminants are outlined. Then the multiple-barrier approach is discussed with respect to the resources groundwater and spring water, lake and reservoir water, and river water. Examples for treatment schemes are given and the principle of subsurface transport of river water as a first treatment step is described.

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