Presence and Persistence of Salmonella in Water: The Impact on Microbial Quality of Water and Food Safety

The quality of surface water remains an important issue today. This is particularly acute for water bodies located in the urban-basin geosystems. Purpose. To estimate pressure of atmospheric precipitation within the urban landscape basin geosystem on the river water (by example of the Kharkiv river). Methods. Field landscaping, ecological, landscape-geochemical; analytical; system analysis; chemical analytical; statistical Results. An assessment of the state of surface waters under the impact from the surface runoff of atmospheric origin during 2014-2016, and partly from 2017-2019, formed under the influence of the transport (partly residential) subsystem of the urban area and surface waters in Kharkiv. On the salt content, the characteristic of water quality is "moderately polluted" (1,6); on the tropho-saprobiological indicators, the quality of water is characterized as "polluted" (from 3.1 to 2.75 along the river). It is in this context the impact of waters, which is formed in the conditions of the urban environment for the quality of natural waters, is well demonstrated. The presence of high values of pollutants and natural factors. The assessment of the quality of water on the content of specific indicators is "moderately polluted" (from 2.28 to 1.85). Conclusions. The water of the Kharkiv region, which has a strong influence from the urban environment, has a grade III quality; the water is "moderately polluted". Environmental assessment indicates the impact of surface runoff already on the middle part of the river, which increases in accordance with the conditions of the operation of urban landscapes and anthropogenic (transport) load.

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The impact of coal ash and slag dump on the quality of surface and ground waters - a case study

Journal of the Serbian Chemical Society ◽

10.2298/jsc190129012c ◽

2019 ◽

Vol 84 (5) ◽

pp. 527-530

Author(s):

Ivana Cipranic ◽

Radmila Markovic ◽

Stefan Djordjievski ◽

Zoran Stevanovic ◽

Marija Stevanovic

Keyword(s):

Water Samples ◽

Coal Ash ◽

Negative Influence ◽

Physical Treatment ◽

Physical Chemical ◽

Quality Of Water ◽

Slag Dump ◽

The Impact

This paper presents the assessment of the impact of coal ash and slag from the ?Maljevac? dump on the quality of water of Paleski Creek, Montenegro. The obtained results confirm the negative influence of surface and groundwater from the dump on the water from the Paleski Creek. The results obtained by testing of the water samples, collected from Paleski Creek upstream of the dump, indicate that the water is qualified to be used for drinking, after simple physical treatment and disinfection. The results obtained for the water samples collected from the Paleski creek downstream from the dump indicate that the water could be safe for drinking only after the treatment that requires an intensive physical, chemical and biological processing, including some extended treatment.

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Effect of an activated carbon filter on the microbial quality of water.

Applied and Environmental Microbiology ◽

10.1128/aem.34.5.541-546.1977 ◽

1977 ◽

Vol 34 (5) ◽

pp. 541-546 ◽

Cited By ~ 25

Author(s):

J V Fiore ◽

R A Babineau

Keyword(s):

Activated Carbon ◽

Microbial Quality ◽

Quality Of Water ◽

Activated Carbon Filter ◽

Carbon Filter

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Epilepsy and Stroke Emerging From Climate Change-Related Neurotoxicity

Advances in Environmental Engineering and Green Technologies - Handbook of Research on Global Environmental Changes and Human Health ◽

10.4018/978-1-5225-7775-1.ch016 ◽

2019 ◽

pp. 322-347

Author(s):

Hind Benammi ◽

Omar El Hiba ◽

Abdelmohcine Aimrane ◽

Nadia Zouhairi ◽

Hicham Chatoui ◽

...

Keyword(s):

Climate Change ◽

Heavy Metals ◽

Nervous System ◽

Toxic Elements ◽

Neurological Diseases ◽

Quality Of Water ◽

Wide Range ◽

The Impact ◽

Shed Light

Climate change has an important impact on the environment. As it degrades the quality of water, soil, and area, it also spreads the distribution of many toxic elements, specifically heavy metals and pesticides. The impact of climate change on contamination with heavy metals and pesticides has been well investigated and discussed. The influence of these elements on human health is obviously exacerbated following their extended distribution. Moreover, a wide range of health problems have been associated to such intoxication, among which impairment and dysfunction of the nervous system are prominent. In this chapter, the authors will shed light on two most common neurological diseases such as epilepsy and stroke affecting people worldwide arising from food and water contaminations, mainly with heavy metals and pesticides.

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Investigating the Impact of Anthropogenic and Natural Sources of Pollution on Quality of Water in Upper Indus Basin (UIB) by Using Multivariate Statistical Analysis

Journal of Chemistry ◽

10.1155/2019/4307251 ◽

2019 ◽

Vol 2019 ◽

pp. 1-13 ◽

Cited By ~ 2

Author(s):

Mansoor A. Baluch ◽

Hashim Nisar Hashmi

Keyword(s):

Water Quality ◽

Statistical Analysis ◽

Multivariate Statistical Analysis ◽

Quality Parameters ◽

Anthropogenic Source ◽

Indus River ◽

Multivariate Statistical ◽

Quality Of Water ◽

The Impact

Water quality of the Indus River around the upper basin and the main river was evaluated with the help of statistical analysis. In order to analyze the similarities and dissimilarities for identifying the spatial variations in water quality of the Indus River and sources of contamination, multivariate statistical analysis, i.e., principle component analysis (PCA), cluster analysis, and descriptive analysis, was done. Data of 8 physicochemical quality parameters from 64 sampling stations belonging to 6 regions (labeled as M1, M2, M3, M4, M5, and M6) were used for analysis. The parameters used for assessing the water quality were pH, dissolved oxygen (DO), oxygen reducing potential (ORP), electrical conductivity (EC), total dissolved solids (TDS), salinity (%), and concentration of arsenic (As) and lead (Pb), respectively. PCA assisted in extracting and recognizing the responsible variation factors of water quality over the region, and the results showed three underlying factors including anthropogenic source pollution along with runoff due to rain and soil erosion were responsible for explaining the 93.87% of total variance. The parameters which were significantly influenced by anthropogenic impact are DO, EC, TDS (negative), and concentration of Pb (positive), while the concentration of As, % salinity, and ORP are affected by erosion and runoff due to rain. The worst pollution situation for regions M1 and M6 was due to the concentration of As which was approximately 400 μg/l (i.e., 40 times higher than minimum WHO recommendation). Furthermore, the results also indicated that, in the Indus River, three monitoring stations and five quality parameters are sufficient to have a reasonable confidence about the quality of water in this most important reserve of Pakistan.

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Pre- and Post-Harvest Practices of Urban Leafy Green Vegetable Farmers in Accra, Ghana and Their Association with Microbial Quality of Vegetables Produced

Agriculture ◽

10.3390/agriculture10010018 ◽

2020 ◽

Vol 10 (1) ◽

pp. 18

Author(s):

Joycelyn Quansah ◽

Cesar Escalante ◽

Angela Kunadu ◽

Firibu Saalia ◽

Jinru Chen

Keyword(s):

Food Safety ◽

Fecal Coliform ◽

Formal Education ◽

Agricultural Practices ◽

Seemingly Unrelated Regression ◽

Microbial Quality ◽

Post Harvest ◽

Vegetable Farmers ◽

Handling Practices

Vegetable farming is the most practiced urban agriculture in Ghana. A previous study of our laboratory revealed poor microbial quality of, and presence of Salmonella on, leafy green vegetables grown or sold in Accra, Ghana. The aims of this study were to determine agricultural practices of urban vegetable farmers and the association between agricultural practices and microbial safety of vegetables produced. A survey was conducted among 102 farmers from 12 farming areas who produced exotic and indigenous leafy greens in Accra, Ghana to identify their farming practices. It was observed that water from waste drains pumped into shallow wells was used for irrigation by 70% of the farmers. Incompletely composted manure was commonly used (99%) in farming. Vegetables were usually harvested using bare hands (96%) and knives (73%) and transported mainly in sacks (94%) to market centers under non-refrigerated conditions. Over 60% of the farmers disagreed that the use of polluted irrigation water can contaminate vegetables or make consumers sick. According to the seemingly unrelated regression model, farmers with no formal education and less food safety knowledge and had been planting on their current farmlands for several years were likely to produced vegetables with higher fecal coliform and Enterococcus sp. counts compared to other farmers. Vegetables cultivated by farmers who disagreed that the use of contaminated water can make consumers sick were associated with the production of vegetables with high fecal coliform and Enterococcus sp. counts. Education and improved agricultural and post-harvest handling practices should be encouraged among vegetable producers in the area to improve food safety.

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