1. Fernandez-Navarro P, Garcia-Perez J, Ramis R, Boldo E, Lopez-Abente G. Industrial pollution and cancer in Spain: An important public health issue. Environ Res 2017;159:555-63. doi: 10.1016/j.envres.2017.08.049. 2. Yang Q, Li Z, Lu X, Duan Q, Huang L, Bi J. A review of soil heavy metal pollution from industrial and agricultural regions in China: Pollution and risk assessment. Sci Total Environ 2018;642:690-700. doi: 10.1016/j.scitotenv.2018.06.068. 3. Moayeid M, Cheraghi M, Lorestani B. Investigation of the amount of phosphate and nitrate accumulation in consumable onion in Hamedan city. Journal of Neyshabur University of Medical Sciences 2017; 4(4):82-9. Persian 4. Khoshgoftarmanesh AH, Aghili F, Sanaeiostovar A. Daily intake of heavy metals and nitrate through greenhouse cucumber and bell pepper consumption and potential health risks for human. Int J Food Sci Nutr 2009;60 Suppl 1:199-208. doi: 10.1080/09637480902755087. 5. Zhai Y, Zhao X, Teng Y, Li X, Zhang J, Wu J, et al. Groundwater nitrate pollution and human health risk assessment by using HHRA model in an agricultural area, NE China. Ecotoxicol Environ Saf 2017;137:130-42. doi: 10.1016/j.ecoenv.2016.11.010. 6. Pourmoghim M, Khoshtinat K, Sadeghi Makkei A, Komeili fonod R, Golestan B, Pirali M. Determination of nitrate contents of lettuce, tomatoes and potatoes on sale in Tehran central fruit and vegetable market by HPLC. Iranian Journal of Nutrition Sciences & Food Technology 2010;5(1):63-70. Persian 7. Rahmani HR. Investigation of nitrate pollution in the soil, water and plants in some agricultural fields in baraan (Esfahan). Environmental Sciences 2006; 3(11):23-34. Persian 8. Alamian M, Eftekhari SA, Heidari M, Alamzadeh Ansari N. Evaluation of nitrate accumulation and nitrate reductase activity in different vegetative growth of selected Iranian land races of Spinach (Spinacia oleracea L.). Journal of Crop Production and Processing 2014;3(10):25-36. Persian 9. Colla G, Kim HJ, Kyriacou MC, Rouphael Y. Nitrate in fruits and vegetables. Scientia Horticulturae 2018;237:221-38. doi.org/10.1016/j.scienta.2018.04.016 10. Ding Z, Johanningsmeier SD, Price R, Reynolds R, Truong V-D, Payton SC, et al. Evaluation of nitrate and nitrite contents in pickled fruit and vegetable products. Food Control 2018;90:304-11. 11. Fan AM. Nitrate and Nitrite in Drinking Water: A Toxicological Review. In: Nriagu JO, editor. Encyclopedia of Environmental Health. 1th ed. Burlington: Elsevier Science; 2011. 12. Tabande L, Taheri M. Evaluation of exposure to heavy metals Cu, Zn, Cd and Pb in vegetables grown in the olericultures of Zanjan province's fields. Iranian Journal of Health and Environment 2016;9(1):41-56. Persian 13. Ravankhah N, Mirzaei R, Masoum S. Human health risk assessment of heavy metals in surface soil. J Mazandaran Univ Med Sci 2016;26(136):109-20. Persian 14. Yeganeh M, Afyuni M, Khoshgoftarmanesh AH, Khodakarami L, Amini M, Soffyanian AR, et al. Mapping of human health risks arising from soil nickel and mercury contamination. J Hazard Mater 2013;244-245:225-39. doi: 10.1016/j.jhazmat.2012.11.040. 15. Aghili F, Khoshgoftarmanesh AH, Afyuni M, Schulin R. Health risks of heavy metals through consumption of greenhouse vegetables grown in central Iran. Human and Ecological Risk Assessment: An International Journal 2009;15(5):999-1015. doi.org/10.1080/10807030903153337 16. Shahbazzadegan S, Hashemimajd K, Shahbazi B. Determination of nitrate concentration of consumed vegetables and fruits in Ardabil. J Ardabil Univ Med Sci 2010;10(1):38-47. Persian 17. Hashemimajd K, Golchin A. The effect of iron-enriched vermicompost on growth and nutrition of tomato. Journal of Agricultural Science and Technology 2009; 11(5):613-21. 18. Sobhan Ardakani S, Shayesteh K, Afyuni M, Mahboubi Soufiani N. Nitrate concentration in some plants in Isfahan. Journal of Environmental Studies 2005;31(37):69-76. Persian 19. Pirsaheb M, Rahimian S, Pasdar Y. Nitrite and Nitrate content of fruits and vegetables in Kermanshah (2010). J Kermanshah Univ Med Sci 2012 ; 16(1):e78885. Persian 20. Boskabady M, Marefati N, Farkhondeh T, Shakeri F, Farshbaf A, Boskabady MH. The effect of environmental lead exposure on human health and the contribution of inflammatory mechanisms, a review. Environ Int 2018;120:404-20. doi: 10.1016/j.envint.2018.08.013. 21. Rovira J, Domingo JL. Human health risks due to exposure to inorganic and organic chemicals from textiles: A review. Environ Res 2019;168:62-9. doi: 10.1016/j.envres.2018.09.027. 22. Haftbaradaran S, Malakouti MJ, Khoshgoftarmanesh AH. Investigation of nitrate risk assessment in edible parts of some crops grown in Isfahan province. Applied Soil Research 2018; 6(1):1-12. Persian 23. Kafeshani O, Yahai M, Entezari MH, Hassanzadeh A, Mohebat L, Torbi A. Comparing the nitrate level in vegetables irrigated with zayandehrood river and well water. Journal of Health System Research 2013; 9(2):196-201. Persian 24. Taghipour H, Nowrouz P, Dastgiri Mehri S, Bafandeh Y, Mahdavi R, Hashemimajd K. Estimating of Dietary Nitrate Consumption in Two Cities of Varzaghan and Parsabad with Different Occurrence of Gastric Cancer. J Ardabil Univ Med Sci 2014;14(3):266-73. Persian 25. Ierna A. Influence of harvest date on nitrate contents of three potato varieties for off-season production. Journal of Food Composition and Analysis 2009;22(6):551-5. doi.org/10.1016/j.jfca.2008.11.007 26. Liang Y, Zheng P, Li S, Li KZ, Xu HN. Nitrate reductase-dependent NO production is involved in H2S-induced nitrate stress tolerance in tomato via activation of antioxidant enzymes. Scientia Horticulturae 2018;229:207-14. doi.org/10.1016/j.scienta.2017.10.044 27. Yeganeh M, Bazargan K. Human health risks arising from nitrate in potatoes consumed in Iran and calculation nitrate critical value using risk assessment study. Human and Ecological Risk Assessment: An International Journal 2016; 22(3):817-24. doi.org/10.1080/10807039.2015.1113851 28. Hambridge T. Nitrate and nitrite: intake assessment, WHO Food Additives Series; 2019 [cited 2018 Jun 3]. Available from:http://www.inchem.org/documents/jecfa/jecmono/v50je07.htm. 29. Guo Z, Liang Y, Yan J, Yang E, Li K, Xu H. Physiological response and transcription profiling analysis reveals the role of H2S in alleviating excess nitrate stress tolerance in tomato roots. Plant Physiol Biochem 2018;124:59-69. doi: 10.1016/j.plaphy.2018.01.006. 30. Pavlou GC, Ehaliotis CD, Kavvadias VA. Effect of organic and inorganic fertilizers applied during successive crop seasons on growth and nitrate accumulation in lettuce. Scientia Horticulturae 2007;111(4):319-25. doi.org/10.1016/j.scienta.2006.11.003
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