Effect of wastewater irrigation on vegetables in relation to bioaccumulation of heavy metals and biochemical changes

Gupta, Srimanta; Satpati, S.; Nayek, Sumanta; Garai, D.

doi:10.1007/s10661-009-0936-3

Cited by 139 publications

(74 citation statements)

References 30 publications

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“…Mean Cd concentrations were highest in vegetables harvested from Kera and Lafto farming sites, with levels ranging Aschale et al (2015) and Mekonnen et al (2015). Cadmium levels exceeding the RMLs were reported by Mapanda et al (2007) and Gupta et al (2010). Similar high level was also found in Radish (Bigdeli and Seilsepour 2008).…”

Section: Heavy Metals In Vegetablesmentioning

confidence: 75%

Heavy metal accumulation and health risk assessment in wastewater-irrigated urban vegetable farming sites of Addis Ababa, Ethiopia

et al. 2017

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Background: Wastewater irrigation for vegetable production is a highly prevalent practice in Addis Ababa and a number of articles have been published on wastewater-irrigated soils and vegetables contaminated with heavy metals. However, to the best of our knowledge, an insight into assessment of human health risks associated with the consumption of vegetable crops grown on wastewater-irrigated soils is non-existent in the city. Long-term effect of wastewater irrigation on the build-up of heavy metals in soils and selected vegetable crops in Addis Ababa urban vegetable farming sites (10) was evaluated. By calculating estimated daily intakes (EDIs) and target hazard quotients (THQs) of metals, health risk associated with the consumption of the analyzed vegetables was also evaluated. Results: The heavy metal concentrations in irrigation water and soils did not exceed the recommended maximum limits (RMLs). Moreover, Cd, Co, Cr, Cu, Ni and Zn concentrations in all analyzed vegetables were lower than the RML standards. In contrast, Pb concentrations were 1.4-3.9 times higher. Results of two way ANOVA test showed that variation in metals concentrations were significant (p < 0.001) across farming site, vegetable type and site x vegetable interaction. The EDI and THQ values showed that there would be no potential health risk to local inhabitants due to intake of individual metal if one or more of the analyzed vegetables are consumed. Furthermore, total target hazard quotients (TTHQs) for the combined metals due to all analyzed vegetables were lower than 1, suggesting no potential health risk even to highly exposed local inhabitants. Conclusions: There is a great respite that toxic metals like Pb and Cd have not posed potential health risk even after long term (more than 50 years) use of this water for irrigation. However, intermittent monitoring of the metals from irrigation water, in soil and crops may be required to follow/prevent their build-up in the food chain.

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Section: Heavy Metals In Vegetablesmentioning

confidence: 75%

Heavy metal accumulation and health risk assessment in wastewater-irrigated urban vegetable farming sites of Addis Ababa, Ethiopia

et al. 2017

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“…Reports indicate that their environmental abundance and bioavailability were found to increase to a hazardous threshold (Gyekye 2013;Sharma et al 2008;Girisha and Ragavendra 2006). Agricultural lands were also affected particularly in arid and semi-arid regions, mainly due to application of wastewater as an irrigation source (Souri 2016;Gupta et al 2010;Li et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Elemental Profile of Heavy Metals in Garden cress, Coriander, Lettuce and Spinach, Commonly Cultivated in Kahrizak, South of Tehran- Iran

et al. 2018

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Heavy metal accumulation in vegetable tissues often poses a great risk for human health. In the present study, accumulation of heavy metal in green leafy vegetable crops of coriander, garden cress, lettuce and spinach were evaluated under waste water irrigation in fields located in Kahrizak, on the southern edge of the metropolitan city of Tehran, Iran. Atomic absorption spectrophotometery was used for determination of heavy metal concentrations in leaf tissue. The results showed that heavy metal concentrations in soil and irrigation water were significantly high than allowable levels. Analysis of plant leaf tissue showed that spinach and garden cress accumulated higher concentrations of heavy metals compared to coriander and lettuce plants. Central leaves of lettuce showed the lowest heavy metal concentration compared to outer leaves or leaves of other vegetable crops, and can be the safer product for fresh consumption. The results indicate that the vegetables produced in the region are not suitable for fresh consumption and the agricultural activities should change towards ornamental or industrial crops production.

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“…During a fi eld experiment using wastewater irrigation in India, Gupta et al ( 2010 ) showed a decrease in total chlorophyll and total amino acid levels in vegetables and an increase in amounts of soluble sugars, total protein, ascorbic acid, and phenol except Boron . Loutfy et al ( 2010 ) showed all the studied contaminants in Egypt were much higher in henna and rosemary plants irrigated with wastewater, while in the case of Moghat (dried powder of peeled roots of Glossostemon bruguieri plants) samples, no difference was observed between freshwater irrigated samples and wastewater irrigated samples.…”

Section: Cropsmentioning

confidence: 99%

Global Experiences on Wastewater Irrigation: Challenges and Prospects

Valipour

Singh

2016

Balanced Urban Development: Options and Strategies for Liveable Cities

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The need for irrigated agriculture is growing day by day and the largest water withdrawals from renewable water resources are for irrigation. In addition, the available water resources are decreasing and we need to use non-conventional water resources for irrigation due to looming water crisis (Raschid-Sally and Jayakody, Drivers and characteristics of wastewater agriculture in developing countries: results from a global assessment. International Water Management Institute, Colombo, 35p, (IWMI Research Report 127), 2008). However, the volume of treating and using wastewater is limited due to the lack of adequate data and knowledge and/or negative effects of improper wastewater management (i.e. use of untreated wastewater). A comprehensive evaluation of what has been done is necessary in order to explore wastewater irrigation and to avoid trial-and-error policies. Although a study of wastewater irrigation from crops, soil, groundwater, health, irrigation equipments, modern technologies, and other environmental aspects is useful, management studies in comparison with other aspects can help lead to more reliable and more extensive fi ndings and fi nally a better decision on using wastewater for irrigation. The chapter presents challenges and prospects that may help decision making for the use of wastewater in irrigation.

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Effect of wastewater irrigation on vegetables in relation to bioaccumulation of heavy metals and biochemical changes

Cited by 139 publications

References 30 publications

Heavy metal accumulation and health risk assessment in wastewater-irrigated urban vegetable farming sites of Addis Ababa, Ethiopia

Heavy metal accumulation and health risk assessment in wastewater-irrigated urban vegetable farming sites of Addis Ababa, Ethiopia

Elemental Profile of Heavy Metals in Garden cress, Coriander, Lettuce and Spinach, Commonly Cultivated in Kahrizak, South of Tehran- Iran

Global Experiences on Wastewater Irrigation: Challenges and Prospects

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