1. 1. Yi, Y.J. and Zhang, S.H., 2012. The relationships between fish heavy metal concentrations and fish size in the upper and middle reaches of the Yangtze River. Procedia Environmental Sciences. 13: 1699-1707. https://doi.org/10.1016/j.proenv. 2012.01.163

2. 2. Copat, C., Arena, G., Fiore, M., Ledda, C., Fallico, R., Sciacca, S. and Ferrante, M., 2012. Heavy metals concentrations in fish and shellfish from eastern Mediterranean Sea: consumption advisories. Food and chemical toxicology. 53: 33-37. https://doi.org/10.1016/ j.fct.2012.11.038

3. 3. Alina, M., Azrina, A., Mohd Yunus, A.S., Mohd Zakiuddin, S., Mohd Izuan Effendi, H. and Muhammad Rizal, R., 2018. Heavy metals (mercury, arsenic, cadmium, plumbum) in selected marine fish and shellfish along the Straits of Malacca. International Food Research Journal. 19(1): 135-140.

4. 4. Alhassan, A., Aliyu, A., Magaji, A., Abdulkareem, N. and Abdullahi, M., 2022. An Insight into the Importance of Application of Geophysical Methods in Agriculture for National Economic Development. Global Sustainability Research 1(1):1-4. https://doi.org/10. 56556/gssr.v1i1.301

5. 5. Zoumis, T., Schmidt, A., Grigorova, L. and Calmano, W., 2001. Contaminants in sediments: Remobilization and demobilization. Science of the Total Environment. 266: 195-202. https://doi.org/10.1016/S0048-9697(00)00 740-3

6. 6. Proshad, R., Kormoker, T., Al M., A., Islam, M.S., Khadka, S. and Idris, A.M., 2022. Receptor model-based source apportionment and ecological risk of metals in sediments of an urban river in Bangladesh. Journal of hazardous materials. 423: 127030. https://doi.org/10. 1016/j.jhazmat.2021.127030.

7. 7. Benson, N.U., Adedapo, A.E., Fred-Ahmadu, O.H., Williams, A.B., Udosen, E.D., Ayejuyo, O.O. and Olajire, A.A., 2018. New ecological risk indices for evaluating heavy metals contamination in aquatic sediment: A case study of the Gulf of Guinea. Regional Studies in Marine Science. 18: 44-56. https://doi.org/10. 1016/j.rsma.2018.01.004

8. 8. Hoang, H.G., Lin, C., Tran, H.T., Chiang, C.F., Bui, X.T., Cheruiyot, N.K., Shern, C.C. and Lee, C.W., 2020. Heavy metal contamination trends in surface water and sediments of a river in a highly-industrialized region. Environmental Technology & Innovation. 20: 101043. https://doi.org/10.1016/j.eti.2020.101043

9. 9. Jaskuła, J., Sojka, M., Fiedler, M. and Wróżyński, R., 2021. Analysis of spatial variability of river bottom sediment pollution with heavy metals and assessment of potential ecological hazard for the Warta River, Poland. Minerals. 3: 327. https://doi.org/10.3390/min110 30327

10. 10. Kumar, S., Islam, A.R.M.T., Hasanuzzaman, M., Salam, R., Khan, R. and Islam, M.S., 2021. Preliminary assessment of heavy metals in surface water and sediment in Nakuvadra-Rakiraki River, Fiji using indexical and chemometric approaches. Journal of environmental management. 298: 113517. https://doi.org/10.1016/j. jenvman.2021.113517

11. 11. Babaei, H., Saberi, H. and Khodaparast, S.H., 2021. Assessment of Heavy Metals and PAHs Concentration of water in Neour Lake (Ardbil Province). Journal of Animal Environment. doi: 10.22034/aej.2020.249124.2356 (In Persian)

12. 12. Lotfi, G. and Ahmadi Nadoushan, M., 2022. Determining the spatial distribution of Lead, Cadmium and zinc in the Sediments of Astara's Estil wetland. Journal of Animal Environment. 14(1): 373-386. (In Persian) doi: 10.22034/AEJ.2021.245511.2482

13. 13. Iranian Fisheries Science Research Institute. 2017. Identification and survey of habitats and centers of genetic reserves in the northern provinces of the country and the classification of their standards (Freshwater, coastal and marine ecosystems of Iran). Ministry of Agriculture. Agricultural research, education and promotion organization. 46 p. (In Persian)

14. 14. Kang, M., Tian, Y., Zhang, H. and Lan, Q., 2020. Distribution, ecological risk assessment, and source identification of heavy metals in river sediments from Hai River and its tributaries, Tianjin, China. Environmental Science and Pollution Research. 231: 38. https://doi.org/ 10.1007/s11270-020-4404-6

15. 15. Abrahim, G.M.S. and Parker, R.J., 2008. Assessment of heavy metal enrichment factors and the degree of contamination in marine sediments from Tamaki Estuary, Auckland, New Zealand. Environmental Monitoring and Assessment. 136: 227-238. https://doi.org/10.1007/s106 61-007-9678-2

16. 16. Adomako, D., Nyarko, B.J.B., Dampare, S.B., Serfor Armah, Y., Osae, S., Fianko, J.R. and Akaho, E.H.K., 2008. Determination of toxic elements in waters and sediments from river Subin in the Ashanti Region of Ghana. Environmental Monitoring and Assessment. 141: 165-175. doi: 10.1007/s10661-007-9885-x

17. 17. Bagheri, H., Mahmudy GHaraie, M.H., Moussavi Harami, R. and KHanehbad, M., 2019. Trace metal environmental contamination records in core sediments of Gorgan Bay in the southeast of the Caspian Sea. Applied Ecology and Environmental Research. 17(4): 9547-9559. http://dx.doi.org/10.15666/aeer/1704_95479559

18. 18. Kharat Sadeghi, M. and Karbasi, A.R., 2006. Investigating the concentration and origin of heavy elements in the sediments of Shiroud River. Science and Environmental Technology. 8(3): 43-51. (In Persian)

19. 19. Hakanson, L., 1980. An ecological risk index for aquatic pollution control. A sedimentological approach. Water Research. 14(8): 975-1001. https://doi.org/10.1016/0043. 1354(80)90143-8.

20. 20. Jamshidi, S. and Bastami, K.D., 2017. Preliminary assessment of metal distribution in the surface sediments along the coastline of the southern Caspian Sea, Marine Pollution Bulletin. 116(1-2): 462-468. https://doi.org/10. 1016/j.marpolbul.2016. 12.033.

21. 21. TEPA. 2010. Soil and Groundwater Pollution Remediation Act. Environmental Protection Administration, Executive Yuan, Taipei, Taiwan.

22. 22. Withanachchi, S.S., Ghambashidze, G., Kunchulia, I., Urushadze, T. and Ploeger, A., 2018. Water quality in surface water: A preliminary assessment of heavy metal contamination of the Mashavera River, Georgia. International Journal of Environmental Research and Public Health. 15(4): 621. http://dx.doi.org/10.3390/ ijerph15040621.

23. 23. Long, E.R., MacDonald, D.D., Smith, S.L. and Calder, F.D., 1995. Incidence of adverse biological effects within ranges of chemical concentrations in marine and estuarine sediments. Environmental Management. 19: 18-97. https://doi.org/10.1007/ BF02472006

24. 24. Najafi, M., Zamani-Ahmadmahmoodi, R., Shaluei, F. and Ghorbani-Dashtaki, P., 2021. Evaluation of heavy metal pollution levels in the Water of the Beheshtabad River. Wetland Ecobiology. 12(1): 17-28 (In Persian)

25. 25. Patel, N.P., Raju, J., Reddy, B.C., Sundara, R., Suresh, U., Sankar, D.B. and Reddy, T.V.K., 2018. Heavy metal contamination in river water and sediments of the Swarnamukhi River Basin, India: risk assessment and environmental implications. Environ Geochem Health. 40: 609-623. https://doi.org/10.1007/s10653-017-0006-7

26. 26. Cengiz, M.F., Kilic, S., Yalcin, F., Kilic, M. and Gurhan, Y.M., 2017. Evaluation of heavy metal risk potential in Bogacayi River water (Antalya, Turkey). Environmental Monitoring Assessment. 189: 248. http://doi:10.1007/s10661-017-5925-3.

27. 27. Badusha, M. and Santhosh, S., 2021. Distribution of Heavy Metals in the Surface Waters of Neyyar River, Kerala, India. Journal of Aquatic Biology & Fisheries. 9: 76-91.

28. 28. Kumar, V., Sharma, A., Kumar, R., Bhardwaj, R., Kumar Thukral, A. and Rodrigo-Comino, J., 2018. Assessment of heavy metal pollution in three different Indian water bodies by a combination of multivariate analysis and water pollution indices. Human and Ecological Risk Assessment: An International Journal. https://doi.org/10.1080/10807039.2018.1497946.

29. 29. WHO. 2008. Guidelines for Drinking Water Quality. Incorporating 2nd Addendum (3rd ed.). Geneva: World Health Organization.

30. 30. BIS. 2012. Drinking Water Specification. Bureau of Indian Standards, New Delhi.

31. 31. EPR. 1993. Guidelines for Inland Surface Waters, Omitted by Rule 2(i)(iii) of the Environment (Protection) Third Amendment Rules. vide G.S.R. 801(E) dated 31.12.1993. 1986.

32. 32. Talesh Pour, S., Taghavi, L. and Nasrollahzadeh Saravi, H., 2020. Prioritizing the Amount of Contamination of Metals Using Pollution Load Factors and Potential Biologic Hazards in the Surface Sediments of the Rivers of the Southeast Coast of the Caspian Sea. Journal of Environmental Science and Technology. 22(6): 17-30. (In Persian)

33. 33. Abadi, M., Zamani, A.A., Parizanganeh, A., Khosravi, Y. and Badiee, H., 2019. Heavy metal contamination in surface sediments of four important rivers leading to the Caspian Sea. Wetland Ecobiology. 11(2): 67-82. (In Persian)

34. 34. Bagheri, H. and Darvish Bastami, M., 2022. Investigation of heavy metal concentrations in estuarine sediments of important rivers in the southern part of the Caspian Sea. Environment and Water Engineering. 8(1): 31-46. http://doi: 10.22034/JEWE. 2021.286828.1569.

35. 35. Malvandi, H., 2021. An assessment of metal contamination risk in sediments of the Mohammad Abad River, Northern Iran. Journal of Biomedical Research Environmental Science. 2(8): 696-704. http://doi: 10.37 871/jbres1299.

36. 36. Ghanbarpour, M.R., Goorzadi, M. and Vahabzade, G., 2014. Spatial variability of heavy metals in surficial sediments: Tajan River Watershed, Iran. http://dx.doi.org/ 10.1016/j.swaqe.2014.04.002.

37. 37. Khalili, R., Zali, A. and Motaghi, H., 2021. Evaluation of Heavy Metals in Water and Sediments of Haraz River, Using Pollution Load Index (PLI) and Geoaccumulation Index (Igeo). Iranian Journal of Soil and Water Research. 52(4): 933-942. (In Persian) doi: 20.1001.1.2008479. 1400.52.4.4.6

38. 38. Alahabadia, A. and Malvandi, H., 2018. Contamination and ecological risk assessment of heavy metals and metalloids in surface sediments of the Tajan River, Iran. Marine Pollution Bulletin. Marine Pollution Bulletin. 133: 741-749.https://doi.org/10. 1016/j.marpolbul.2018.06.030.

39. 39. Daesslé, L.W., Rendón-Márquez, G., Camacho-Ibar, V.F., Gutiérrez-Galindo, E.A., Shumilin, E. and Ortiz-Campos, E., 2009. Geochemistry of modern sediments from San Quintín coastal lagoon, Baja California: Implication for provenance. Revista Mexicana de Ciencias Geológicas. 26(1): 117-132.

40. 40. Yarahmadi, S.S. and Ansari, M.R., 2018. Ecological risk assessment of heavy metals (Zn, Cr, Pb, As, and Cu) in sediments of Dohezar River, North of Iran, Tonekabon city. Acta Ecologica Sinica. 38(2): 126-134. https://doi. org/10.1016/j.chnaes.2017.06.018

41. 41. Shahradnia, H., Chamani, A., Zamanpoore, M. and Jalalizand, A., 2021. Heavy metal pollution in surface sediments of Ghareh-Aghaj River, one of the longest perennial rivers in Iran. Environmental Earth Science. 80: 91. https://doi.org/10.1007/s12665-021-09384-1.

42. 42. Li, X., Shen, H., Zhao, Y., Cao, W., Hu, Ch. and Sun, Ch., 2019. Distribution and potential ecological risk of heavy metals in water, sediments, and aquatic macrophytes: a case study of the junction of four rivers in Linyi City, China. International Journal of Environmental Research and Public Health. 16: 2861. http://doi:10.33 90/ijerph16162861

43. 43. Usman, Q.A., Muhammad, S., Ali, W., Yousaf, S. and Jadoon, I.A.K., 2020. Spatial distribution and provenance of heavy metal contamination in the sediments of the Indus River and its tributaries, North Pakistan: Evaluation of pollution and potential risks. Environmental Technology & Innovation. 21: 101184. https://doi.org/ 10.1016/j.eti.2020.101184.

44. 44. You, M., Hu, Y. and Meng, Y., 2023. Chemical speciation and bioavailability of potentially toxic elements in surface sediment from the Huaihe River, Anhui Province, China. Marine Pollution Bulletin. 188: 114616. https://doi.org/10.1016/j. marpolbul.2023.114616.

45. 45. Hung, D.Q., Nekrassova, O. and Compton, R.G., 2004. Analytical methods for inorganic arsenic in water: A review. Talanta. 64(2): 269-277. doi: 10.1016/j.talanta. 2004.01.027

46. 46. Eberechi, D.G., 2019. Heavy metal contamination in selected dumpsites in Warri, Niger delta. 321 p.