ELEVATED SELENIUM LEVELS IN VEGETABLES, FRUITS, AND WILD PLANTS AFF ECTED BY THE RAŠA COAL MINE WATER CHEMISTRY

Selenium (Se), an essential trace element that is toxic when humans and animals are exposed to it in excess, is ubiquitous in coal. For centuries, superhigh-organic-sulfur (SHOS) Raša coal, enriched in S, Se, U, V, and Mo, was mined and processed across the Mediterranean Raša Bay area, located in th...

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Main Authors: Gordana Medunić, Nina Bilandžić, Marija Sedak, Željka Fiket, Andreja Prevendar Crnić, Vanja Geng
Format: Article
Language:English
Published: Faculty of Mining, Geology and Petroleum Engineering 2021-01-01
Series:Rudarsko-geološko-naftni Zbornik
Subjects:
Online Access:https://hrcak.srce.hr/file/364778
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author Gordana Medunić
Nina Bilandžić
Marija Sedak
Željka Fiket
Andreja Prevendar Crnić
Vanja Geng
author_facet Gordana Medunić
Nina Bilandžić
Marija Sedak
Željka Fiket
Andreja Prevendar Crnić
Vanja Geng
author_sort Gordana Medunić
collection DOAJ
description Selenium (Se), an essential trace element that is toxic when humans and animals are exposed to it in excess, is ubiquitous in coal. For centuries, superhigh-organic-sulfur (SHOS) Raša coal, enriched in S, Se, U, V, and Mo, was mined and processed across the Mediterranean Raša Bay area, located in the Istrian peninsula (in the northern Adriatic Sea, Croatia). There is concern that Raša coal mine water is contaminating local water, soil, and crops. The aim of this monitoring study was to determine the levels of Se and selected potentially toxic trace (As, Cd, Cu, Cr, Mo, Pb, U, V, and Zn), and minor (Fe and Mn) elements in Raša coal mine water, surface water, and associated vegetables, one fruit, and wild plants. Levels of Se in coal mine water were increased (up to 12 μg/L) compared to the maximum allowed water Se (10 μg/L). Compared to an EU average soil Se (1.15 mg/kg), Raša garden soil showed a 5-fold increase in Se. Compared to Croatian and Greek vegetable Se levels (low to normal), Raša vegetables showed a 20-fold, and a 50-fold increase in Se, respectively. Although approximative only, estimates of daily intake (EDI) of Se for mixed Raša vegetables (n = 21) showed a high level (0.055 mg/day). Namely, recommended dietary allowances (RDA) of Se for females and males are 0.055 mg/day, and 0.070 mg/ day, respectively. The EDI values of the analyzed vegetables contributed to average RDA levels as follows: garlic (183%), turnip (154%), parsley (147%), onion and gourd (76%), lettuce (74%), kale (62%), radicchio (51%), and potato (20%). Although the calculated EDI for the analyzed Raša vegetables was 1/8 the toxic dose (>0.4 mg/day), these results call for further research on the dietary and nutritional status of the residents in terms of Se.
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spelling doaj.art-0239e8f6eadc4fb58d32f3acd8a929662023-09-02T17:12:31ZengFaculty of Mining, Geology and Petroleum EngineeringRudarsko-geološko-naftni Zbornik1849-04092021-01-0136111310.17794/rgn.2021.1.176ELEVATED SELENIUM LEVELS IN VEGETABLES, FRUITS, AND WILD PLANTS AFF ECTED BY THE RAŠA COAL MINE WATER CHEMISTRYGordana Medunić0Nina Bilandžić1Marija Sedak2Željka Fiket3Andreja Prevendar Crnić4Vanja Geng5University of Zagreb, Faculty of Science, Department of Geology, Horvatovac 95, 10000 Zagreb, CroatiaCroatian Veterinary Institute, Savska cesta 143, 10000 Zagreb, CroatiaCroatian Veterinary Institute, Savska cesta 143, 10000 Zagreb, CroatiaRuđer Bošković Institute, Division for Marine and Environmental Research, Bijenička cesta 54, 10000 Zagreb, CroatiaUniversity of Zagreb, Faculty of Veterinary Medicine, Heinzelova ul. 55, 10000 Zagreb, CroatiaUniversity of Zagreb, Faculty of Science, Department of Geology, Horvatovac 95, 10000 Zagreb, CroatiaSelenium (Se), an essential trace element that is toxic when humans and animals are exposed to it in excess, is ubiquitous in coal. For centuries, superhigh-organic-sulfur (SHOS) Raša coal, enriched in S, Se, U, V, and Mo, was mined and processed across the Mediterranean Raša Bay area, located in the Istrian peninsula (in the northern Adriatic Sea, Croatia). There is concern that Raša coal mine water is contaminating local water, soil, and crops. The aim of this monitoring study was to determine the levels of Se and selected potentially toxic trace (As, Cd, Cu, Cr, Mo, Pb, U, V, and Zn), and minor (Fe and Mn) elements in Raša coal mine water, surface water, and associated vegetables, one fruit, and wild plants. Levels of Se in coal mine water were increased (up to 12 μg/L) compared to the maximum allowed water Se (10 μg/L). Compared to an EU average soil Se (1.15 mg/kg), Raša garden soil showed a 5-fold increase in Se. Compared to Croatian and Greek vegetable Se levels (low to normal), Raša vegetables showed a 20-fold, and a 50-fold increase in Se, respectively. Although approximative only, estimates of daily intake (EDI) of Se for mixed Raša vegetables (n = 21) showed a high level (0.055 mg/day). Namely, recommended dietary allowances (RDA) of Se for females and males are 0.055 mg/day, and 0.070 mg/ day, respectively. The EDI values of the analyzed vegetables contributed to average RDA levels as follows: garlic (183%), turnip (154%), parsley (147%), onion and gourd (76%), lettuce (74%), kale (62%), radicchio (51%), and potato (20%). Although the calculated EDI for the analyzed Raša vegetables was 1/8 the toxic dose (>0.4 mg/day), these results call for further research on the dietary and nutritional status of the residents in terms of Se.https://hrcak.srce.hr/file/364778raša coalwatervegetablesseleniumestimated daily intake
spellingShingle Gordana Medunić
Nina Bilandžić
Marija Sedak
Željka Fiket
Andreja Prevendar Crnić
Vanja Geng
ELEVATED SELENIUM LEVELS IN VEGETABLES, FRUITS, AND WILD PLANTS AFF ECTED BY THE RAŠA COAL MINE WATER CHEMISTRY
Rudarsko-geološko-naftni Zbornik
raša coal
water
vegetables
selenium
estimated daily intake
title ELEVATED SELENIUM LEVELS IN VEGETABLES, FRUITS, AND WILD PLANTS AFF ECTED BY THE RAŠA COAL MINE WATER CHEMISTRY
title_full ELEVATED SELENIUM LEVELS IN VEGETABLES, FRUITS, AND WILD PLANTS AFF ECTED BY THE RAŠA COAL MINE WATER CHEMISTRY
title_fullStr ELEVATED SELENIUM LEVELS IN VEGETABLES, FRUITS, AND WILD PLANTS AFF ECTED BY THE RAŠA COAL MINE WATER CHEMISTRY
title_full_unstemmed ELEVATED SELENIUM LEVELS IN VEGETABLES, FRUITS, AND WILD PLANTS AFF ECTED BY THE RAŠA COAL MINE WATER CHEMISTRY
title_short ELEVATED SELENIUM LEVELS IN VEGETABLES, FRUITS, AND WILD PLANTS AFF ECTED BY THE RAŠA COAL MINE WATER CHEMISTRY
title_sort elevated selenium levels in vegetables fruits and wild plants aff ected by the rasa coal mine water chemistry
topic raša coal
water
vegetables
selenium
estimated daily intake
url https://hrcak.srce.hr/file/364778
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