Screening of arsenic in irrigation water used for vegetable production in Nepal

Dahal, Binod M.; Fuerhacker, Maria; Mentler, Axel; Shrestha, Roshan Raj; Blum, Winfried E. H.

doi:10.1080/03650340701628197

Cited by 22 publications

(10 citation statements)

References 26 publications

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“…It is becoming apparent that ingestion of drinking water is not the only elevated source of As to the diet. Longterm use of As contaminated water for irrigation has resulted in elevated As levels in agricultural soils (Meharg and Rahman 2003;Roychowdhury et al 2005;Williams et al 2005;Dahal et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Influence of Phosphate on the Arsenic Uptake by Wheat (Triticum durum L.) Irrigated with Arsenic Solutions at Three Different Concentrations

Pigna

Cozzolino

Violante

et al. 2008

Water Air Soil Pollut

105

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In this study we have investigated the uptake and distribution of arsenic (As) and phosphate (P i ) in roots, shoots, and grain of wheat grown in an uncontaminated soil irrigated with solutions containing As at three different concentrations (0.5, 1 and 2 mg l −1 ) and in the presence or in the absence of P fertilization. Arsenic in irrigation water reduced plants growth and decreased grain yield. When P i was not added (P−), plants were more greatly impacted compared to the plus P i (P+) treatments. The differences in mean biomass between P− and P+ treatments at the higher As concentrations demonstrated the role of P i in preventing As toxicity and growth inhibition. Arsenic concentrations in root, shoot and grain increased with increasing As concentration in irrigation water. It appears that P fertilization minimizes the translocation of As to the shoots and grain whilst enhancing P status of plant. The observation that P fertilization minimises the translocation of arsenic to the shoots and grain is interesting and may be useful for certain regions of the world that has high levels of As in groundwater or soils.

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Section: Introductionmentioning

confidence: 99%

Influence of Phosphate on the Arsenic Uptake by Wheat (Triticum durum L.) Irrigated with Arsenic Solutions at Three Different Concentrations

Pigna

Cozzolino

Violante

et al. 2008

Water Air Soil Pollut

105

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“…There is natural source of Arsenic in different parts of Terai region of Nepal, due to which there is presence of Arsenite in the ground water of Terai region (Dahal et al, 2008a;2008b). The anthropogenic source of heavy metals in aquatic bodies are mining, heavy metals processing, agricultural activities, industrial activities, (Duruibe et al, 2007;Alptekin and Yuce, 2016;Chowdhury and Maiti, 2016).…”

Section: Resultsmentioning

confidence: 99%

Assessment of physico-chemical parameters of rainbow trout farms for the evaluation of potential threat to natural streams in Nepal

Ghimire¹,

Niraula²,

Rai³

et al. 2017

Int. J. Environ.

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Three trout farms from Nepal were studied to investigate the changes in physico-chemical parameters and their potential threat to natural water bodies receiving the effluents. Reference and impact sites were determined in each farm so as to find out the level of impacts due to farming activities. Some of the parameters such as dissolved oxygen, turbidity, conductivity, and total dissolve solids were significantly changed in the impacted zones compared to reference sites. Similarly, concentrations of some major ions such as calcium and sodium were increased in the impacted zones. On the other hand, some of the parameters such as pH and potassium did not change in the impacted zone although their concentrations were different among farms studied. Nevertheless, the overall changes in the physico-chemical parameters did not pose health risk to the aquatic ecosystems receiving effluents from these fish farms as the concentrations were below the prescribed levels by Environmental Protection Agency (EPA) as well as Nepal Environment Statistics. This is an indication that, although fish farming activities are degrading water qualities, there is no threat to the water quality receiving the effluents yet probably due to small scale farming. The increase in number of fish farms in the same area, however might pose risk to the ecological health in the region which warrants regular monitoring.

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“…Tarımsal bitkiler üzerindeki arseniğin etkisi ve gıda zincirindeki kirlenmeyle ilgili henüz bir çalışma yapılmamıştır [52]. Topraklarda yüksek seviyelerde olmasından dolayı As ile kirlenmiş sulama suları Bangladeş'te tarımda büyük bir engel oluşturmaktadır.…”

Section: Arsenik Bileşikleri Ve Toksik Etkileriunclassified

Accumulation of arsenic in plants from arsenic contaminated irrigation water

Öztürk¹,

Aslan²,

Demirbaş³

2017

Pamukkale J Eng Sci

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GirişArsenik (As) ile kirlenmiş yeraltı suları içme ve kullanma suyu olarak kullanılmasının yanında, sulama suyu olarak da kullanılmaktadır. As içeren su ile sulanan bitkiler, doğrudan insanlar tarafından tüketilmekte veya bu bitkilerin otcul hayvanlar tarafından tüketilmesi ile besin zinciri yoluyla insanlara ulaşmaktadır. Özellikle As ile kirlenmiş toprak ve yeraltı suyunun bulunduğu bölgelerde yaşayan insanlar arseniği bünyelerine beslenme yoluyla (su, bitki ve hayvansal gıda) almaktadır. En yüksek güvenli As alım seviyesi (içme suyundan ve besinlerden) orta yaştaki bir erkek için 220 mg/gün olarak tanımlanmıştır [1].İçme suyunda, As derişiminin kısıtlanması ile As giderimine yönelik araştırma sayısında artış olmasına rağmen ülkemizde, içme ve kullanma suyu kaynaklarında, As kirliliği araştırmaları oldukça sınırlı sayıdadır. Atropojenik (yapay) yollarla sular, As kirlenmesine maruz kalırken, jeotermal kaynaklı suların kullanımı ile de su kaynaklarında As kirlenmesi belirlenmiştir. Doğal ve yapay yollarla As kirlenmesine maruz kalan toprak ve sulama sularının tarımsal amaçlı kullanımı ve etkileri hakkında ülkemizde çalışma bulunmamaktadır.Hayvan beslenmesinde temel gıda maddeleri olan hayvan yemi ve suyun kalitesi hakkında araştırmalar oldukça sınırlıdır. Hayvansal ürünlerde (et, sakatat ve süt) biriken kirleticiler (özellikle ağır metaller) besin zinciri yoluyla insanlara

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Screening of arsenic in irrigation water used for vegetable production in Nepal

Cited by 22 publications

References 26 publications

Influence of Phosphate on the Arsenic Uptake by Wheat (Triticum durum L.) Irrigated with Arsenic Solutions at Three Different Concentrations

Influence of Phosphate on the Arsenic Uptake by Wheat (Triticum durum L.) Irrigated with Arsenic Solutions at Three Different Concentrations

Assessment of physico-chemical parameters of rainbow trout farms for the evaluation of potential threat to natural streams in Nepal

Accumulation of arsenic in plants from arsenic contaminated irrigation water

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