Assessment of bacteriological contaminants of some vegetables irrigated with Awash River water in selected farms around Adama town, Ethiopia

Benti, Girmaye; Kebede, Ameha; Menkir, Sissay

doi:10.5897/jma2013.0275

Cited by 12 publications

(7 citation statements)

References 10 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mean values of microbial contaminants in vegetables irrigated with polluted water that are similar to the values recorded in this research were recorded in farms around Adama town in Ethiopia [25]. These coliform bacterial may have several origins some of which could be attributed to the polluted runoff from the municipality that is channeled into the reservoir.…”

Section: Contamination Of Vegetablessupporting

confidence: 84%

Heavy Metal and Microbial Contaminants of Some Vegetables Irrigated With Goo Reservoir Water, Navrongo, Ghana

Atio

Atogi-Akwoa

2020

JAERI

View full text Add to dashboard Cite

Globally, the safety of vegetables for consumption is becoming an increasing concern to consumers because of the risk associated with eating of vegetables contaminated with heavy metals and microbial organisms. An assessment of the extent of microbial contamination and also levels of heavy metals and the risk associated with the consumption of the vegetables irrigated with polluted Goo reservoir water in the Navrongo municipality was carried out. Site A used the channel flooding irrigation method whilst site B used watering cans for watering during the latter part of the dry season when the pressure of the water is low. A total of 128 vegetables samples were taken for microbial and heavy metals determination each. Samples of leafy vegetable and fruit vegetables were randomly taken from the two sites for microbial and heavy metal analysis. The reservoir was divided to North, South, East and West and water samples taken from each location. The concentrations of heavy metals in the reservoir exceeded the Food and Agricultural Organization (FAO) recommended levels of metals in water for irrigation. Site B recorded the highest microbial counts likewise heavy metal contaminants in the sampled vegetables. Levels of cadmium in the vegetables exceeded the World Health Organization/FAO permissible levels. Copper (Cu) had the highest concentration in both sites. Faecal Coliform (FC) levels in the vegetables were above the International Commission on Microbiological Specifications for Food (ICMSF) allowable limits. The high quantities of Total Coliform, Faecal Coliform, E. coli, helminthes eggs and salmonella contamination of the vegetables indicate high risk of getting diseases through the consumption of these vegetables. The hazard quotient of all the metals exceeded one in both sites except Zinc (Zn). The hazard index (HI) of heavy metals studied was above one in both sites, indicating they could have adverse health effect to human life. The analysis showed there was significant difference in microbial counts and levels of heavy metals in the vegetables in the two different sites. The consumers of these vegetables were at risk of contracting water-borne diseases like typhoid fever, cholera among others and also a high risk of heavy metal poisoning especially from cadmium.

show abstract

Section: Contamination Of Vegetablessupporting

confidence: 84%

Heavy Metal and Microbial Contaminants of Some Vegetables Irrigated With Goo Reservoir Water, Navrongo, Ghana

Atio

Atogi-Akwoa

2020

JAERI

View full text Add to dashboard Cite

show abstract

“…Among the investigated vegetables, cabbage and collard green were found to be more Cr-loaded than other vegetables. High concentrations of this heavy metal were detected in vegetables from KRA, ATSHCA, and CHLA sites which might be due to sewage sludge discharged to the environment from metal production, cement production, textile production, and stone crashing sites or due to pollution from agronomic practices [48].…”

Section: T a B L Ementioning

confidence: 99%

Heavy metal concentration in vegetables and their potential risk for human health

Feseha¹,

Chaubey²,

Abraha³

2021

Health Risk Analysis

View full text Add to dashboard Cite

This study assesses heavy metal levels in the water, soil, and vegetables (swiss chard, lettuce, cabbage, collard green, tomato, green pepper, and carrot) irrigated with wastewater in Gamo, Ethiopia. The samples of soils, waters, and vegetables were randomly collected, processed, and analyzed for heavy metals using atomic absorption spectroscopy. The results obtained show that the mean concentrations of Cd, Cr, and Ni had the highest concentration, and Pb, Zn, and Cu had the lowest concentration in irrigation waters. The levels of Cd in the Kulfo river area and Chamo Lake area and Cu in most of the farm soils were also found to be higher than the guideline values. The study also revealed that the mean levels of Cd in most vegetables and Cr and Pb in some vegetables were higher than the maximum recommended limits set by the World Health Organization / Food and Agriculture Organization 2001. Among the vegetables, cabbage had the highest heavy metal content followed by Swiss-chard, carrot, tomato, collard green, green pepper, and lettuce. The Hazard quotient of Cu, and Ni of all samples of vegetables and Cd in some samples vegetables obtained exceeded unity. It signifies that there are potential health risks to the consumers. This study recommends regular monitoring of heavy metals in soils, waters, and foodstuffs to prevent excessive accrual in the food chain.

show abstract

“…Exposure to elevated levels chromium leads to skin irritation, ulceration, damage to circulatory and nerve tissues which cause health problems. However, daily uptake of it within a certain range of concentrations (up to 200 μg/day) by human beings and animals is considered to be essential for carbohydrate and lipid metabolism (Girmaye, 2012). In this study the chromium contents in vegetable samples were obtained to have ranged from 2.90±0.10-3.77±0.12 mg/kg and these result were higher than permissibility level set by WHO (1999) is 1.2 mg/kg (Table 4).…”

Section: Distribution Of Chromium In Vegetablesmentioning

confidence: 99%

Levels of some toxic heavy metals (Cr, Cd and Pb) in selected vegetables and soil around eastern industry zone, central Ethiopia

Bahiru¹,

Teju²,

Kebede³

et al. 2019

Afr. J. Agric. Res.

View full text Add to dashboard Cite

The purpose of this study was to determine the concentration of heavy metals (Cr, Cd and Pb) in vegetables and the soil contaminating levels as a result of irrigation using Flame Atomic Absorption Spectrophotometer (FAAS). The wet digestion and sequential fractionation extraction procedures were employed to solubilize the metals from the collected samples. The results obtained from this study showed overall concentration of heavy metals Cr, Cd and Pb respectively, in the range of (2.90-3.77), (2.20-3.68) and (4.60-5.50) (mg/Kg) in the edible parts of sampled vegetables. Whereas, concentrations (mg/Kg) of the metals in the soil samples were found to be in the ranges of 22.37-66.30, 27.93-45.33 and 18.82-64.87 for Cr, Cd and Pb, respectively. The modified Tessier sequential extraction procedure was used to fractionate the above three metals from the soil samples into five fractions. In this study the heavy metals were predominantly concentrated in residual fraction (F5); since lead was mainly associated with the organic matter bounded fraction (F4) (34.33-43.45%), it was found to be more bioavailable and mobile than the other investigated heavy metals. The concentrations of heavy metals (Cr, Cd and Pb) in the soil and vegetable samples were above the recommended limit of both WHO and FAO. But Pb for the soil samples was smaller than WHO and FAO recommended limit. Based on facts obtained from this study we suggests concerned official body (ies) to take the necessary precaution measures for cleaning the polluted area.

show abstract

Assessment of bacteriological contaminants of some vegetables irrigated with Awash River water in selected farms around Adama town, Ethiopia

Cited by 12 publications

References 10 publications

Heavy Metal and Microbial Contaminants of Some Vegetables Irrigated With Goo Reservoir Water, Navrongo, Ghana

Heavy Metal and Microbial Contaminants of Some Vegetables Irrigated With Goo Reservoir Water, Navrongo, Ghana

Heavy metal concentration in vegetables and their potential risk for human health

Levels of some toxic heavy metals (Cr, Cd and Pb) in selected vegetables and soil around eastern industry zone, central Ethiopia

Contact Info

Product

Resources

About