Determination of Nitrate as a Source of Risk for Human in Groundwaters

Abstract

We monitored the content of nitrates (NO3-) in samples taken from individual groundwater resources in the cadastral territory of the city of Nitra and Zobor (Svorad’s spring, spring Šindolka and spring Buganka), also used for human consumption in the period 2012 - 2014. NO3- contents were assessed by Photocolorimetric method. We also evaluated the results achieved in relation to the current legislation in this area. The results of the performed analyzes throughout the period shows that the average concentration of NO3- represented in the samples of water from Svorad’s spring was 12,6 mg.dm-3, spring Šindolka 38,0 mg.dm-3 and spring Buganka 103,1 mg .dm-3 The nitrate concentration did not exceed the limit value in samples from spring Šindolka and spring Svorad. Spring Buganka had this value exceeded by up to 100 % of cases. We do not recommend to use water for human consumption from spring Buganka based on the measured values.

Heavy Metals’ Poisoning in Farm Animals

“…More causes of heavy metal contamination include the preparation of nuclear fuels, the smelting of copper, and the electroplating of chromium and cadmium [10,11]. Tiny particles of cadmium, lead, and zinc that have been liberated allow these dangerous metals to float on the wind and land on top of soil or edible plants [12]. PVC goods, color pigments, various alloys, and today's most frequently rechargeable nickel-cadmium batteries all use cadmium compounds as stabilizers [13].…”

Numerical Analysis of the Transfer Dynamics of Heavy Metals from Soil to Plant and Application to Contamination of Honey

“…Honey bees, known for their wide-ranging foraging habits, are capable of gathering contaminants from their environment, as detailed in various studies [7][8][9][10][11][12]. As they collect plant materials like nectar, pollen, and propolis and bring them back to their hives, they inadvertently accumulate substantial amounts of toxic contaminants.…”

“…As they collect plant materials like nectar, pollen, and propolis and bring them back to their hives, they inadvertently accumulate substantial amounts of toxic contaminants. The paper discusses specific instances of metal concentrations, such as cadmium, copper, lead, and selenium, found in bee products across the globe [7,8,[11][12][13].…”