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Effect of Lead, Nickel, and Zinc Pollution in Some Parameters of Oxidative Stress in Hepatopancreas of Snail Helix pomatia L. in Power plant of Obiliq

Bici Mentor, Mazreku Ilir, Hyseni Besmir, Halili Jeton, Krasniqi Ylli, Bislimi Kemajl

Journal of Ecological Engineering

2023

Vol. 24, nr 9

385--395

Large quantities of heavy metals come from anthropogenic sources, including coal combustion, furthermore, these heavy metals can cause oxidative stress in terrestrial animals, such as snails, which acquire these metals through food from storage plants in industrial and coal-burning-polluted areas. In this research, we measured the impact and distribution of power plant TC Kosovo as activity on the concentrations of heavy metals (Pb, Zn, Ni) in the locality of Obiliq, as well as their effect on oxidative stress parameters such as carbonyl proteins, malondialdehyde (MDA), and total proteins in the hepatopancreas of the snail Helix pomatia L. We collected 120 soil samples and 12 snails from concentric circles around the pollution point at distances of 1 km, 2 km, and 5 km. Relevant methods were then applied, and the samples were measured using a spectrophotometer and flame absorber Analyticyena. Results shown that the heavy metals bioaccumulated from snail shells (Helix pomatia L.), and concentrations of these metals influenced an increase in the levels of oxidative stress parameters, including protein carbonylation, MDA, and total proteins in the hepatopancreas.

Roman Snail (Helix pomatia L.) as Bioindicator of Heavy Metals Pollution in Mitrovica Town, Kosovo

Çarkaj Leonora, Selimi Qerim, Ismaili Murtezan, Milaimi Albana Plakiqi

Ecological Engineering & Environmental Technology

2022

Vol. 23, iss. 3

64--71

Our purpose was to monitor the environmental pollution with heavy metals, such as Pb, Zn, Cu, and Cd, and their accumulation in Roman snails (Helix pomatia L.) and the possibility of Roman using snail as a bioindicator of heavy metal pollution. For analyses, we were taken 22 specimens of roman snails in the Mitrovica town (area with the heavy metal pollution derived from the "Trepça" smelter) and 22 specimens in the Vernica village (control area), in which case is analyzed the concentration of heavy metals: Lead (Pb), cadmium (Cd), Zinc (Zn) and Copper (Cu) in the hepatopancreas, foot, and shell of snails. Our results show the high concentration of Pb, Zn, and Cd in the hepatopancreas compared to the other tissues (foot and shell), whereas Cu concentration was higher in the foot of snails from Mitrovica compared to the control group in a significant degree (P < 0.001). We have found a significant (P<0.001) positive correlation between all heavy metals (Pb/Cd; Pb/Cu; Pb/Zn; Cd/Cu; Cd/Zn and Cu/Zn) in the hepatopancreas tissue. In the foot, we have found the negative correlation for Pb/Cd and Pb/Cu and positive for the Pb/Zn; Cd/Cu; Cd/Zn, and Cu/Zn, whereas in the shell the correlation was positive for the Pb/Cd; Pb/Cu and Cd/Cu, and negative for the Pb/Zn; Cd/Zn and Cu/Zn. In the hepatopancreas, the concentration of metals ranged from higher to the lower concentration was: Zn>Cd>Pb>Cu; in the foot: Cu>Zn>Cd>Pb, whereas in the shell: Zn>Cu>Pb>Cd. The Mitrovica town is the area with heavy metals pollution, whereas the Roman snail accumulates relatively high values of these heavy metals and can serve as an indicator organism for pollution with the metals such as Pb, Cd, Zn, and Cu.