Groundwater quality evaluation using water quality index (WQI) and human health risk (HHR) assessment in Herat aquifer, west Afghanistan

References

• Abd El-Aziz SH. 2017. Evaluation of groundwater quality for drinking and irrigation purposes in the north-western area of Libya (Aligeelat). Environ Earth Sci. 76(4):1–17. https://doi.org/10.1007/s12665-017-6421-3.
   Web of Science ®Google Scholar
• Addison MJ, Rivett MO, Phiri P, Mleta P, Mblame E, Banda M, Phiri O, Lakudzala W, Kalin RM. 2020. Identifying groundwater fluoride source in a weathered basement aquifer in central Malawi: human health and policy implications. Appl Sci. 10(14):5006. https://doi.org/10.3390/app10145006.
   Google Scholar
• Adeli M, Mohammadi Z, Keshavarzi B, Amjadian K, Kafi M. 2021. Heavy metal(loid) pollution of a hard-rock aquifer: evidence, distribution, and source. Environ Sci Pollut Res Int. 28(26):34742–34761. https://doi.org/10.1007/s11356-021-13079-2.
   PubMed Web of Science ®Google Scholar
• Adimalla N, Li P. 2019. Occurrence, health risks, and geochemical mechanisms of fluoride and nitrate in groundwater of the rock-dominant semi-arid region, Telangana State, India. Hum Ecol Risk Assess. 25(1-2):81–103. https://doi.org/10.1080/10807039.2018.1480353.
   Web of Science ®Google Scholar
• Adimalla N, Li P, Venkatayogi S. 2018. Hydrogeochemical evaluation of groundwater quality for drinking and irrigation purposes and integrated interpretation with water quality index studies. Environ Process. 5(2):363–383. https://doi.org/10.1007/s40710-018-0297-4.
   Google Scholar
• Adimalla N, Taloor AK. 2020. Hydrogeochemical investigation of groundwater quality in the hard rock terrain of South India using Geographic Information System (GIS) and groundwater quality index (GWQI) techniques. Groundwater Sustainable Dev. 10:100288. 10.1016/j.gsd.2019.100288.
   Google Scholar
• Afghanistan Meteorological Department (AMD). 2020. Afghanistan meteorological portal of country. http://www.amd.gov.af/eng/index.php.
   Google Scholar
• Ahada CP, Suthar S. 2017. Hydrochemistry of groundwater in North Rajasthan, India: chemical and multivariate analysis. Environ Earth Sci. 76(5):203. https://doi.org/10.1007/s12665-017-6496-x.
   Web of Science ®Google Scholar
• Alex R, Kitalika A, Mogusu E, Njau K. 2021. Sources of nitrate in ground water aquifers of the semiarid region of Tanzania. Geofluids. 2021:1–20. https://doi.org/10.1155/2021/6673013.
   Web of Science ®Google Scholar
• Azami-Aghdash S, Ghojazadeh M, Azar FP, Naghavi-Behzad M, Mahmoudi M, Jamali Z. 2013. Fluoride concentration of drinking waters and prevalence of fluorosis in Iran: a systematic review. J Dent Res Dent Clin Dent Prospects. 7(1):1–7. https://doi.org/10.5681/joddd.2013.001.
   PubMedGoogle Scholar
• Bain R, Cronk R, Hossain R, Bonjour S, Onda K, Wright J, Yang H, Slaymaker T, Hunter P, Prüss-Ustün A, et al. 2014. Global assessment of exposure to faecal contamination through drinking water based on a systematic review. Trop Med Int Health. 19(8):917–927. https://doi.org/10.1111/tmi.12334.
   PubMed Web of Science ®Google Scholar
• Battaleb-Looie S, Moore F, Jafari H, Jacks G, Ozsvath DJEES. 2012. Hydrogeochemical evolution of groundwaters with excess fluoride concentrations from Dashtestan, South of Iran. Environ Earth Sci. 67(4):1173–1182. https://doi.org/10.1007/s12665-012-1560-z.
   Web of Science ®Google Scholar
• Buzalaf MA, Granjeiro JM, Damante CA, de Ornelas F. 2001. Fluoride content of infant formulas prepared with deionized, bottled mineral and fluoridated drinking water. ASDC J Dent Child. 68(1):37–41. https://doi.org/10.1016/j.envint.2019.105315
   PubMed Web of Science ®Google Scholar
• Chen J, Wu H, Qian H, Li X. 2018. Challenges and prospects of sustainable groundwater management in an agricultural plain along the Silk Road Economic Belt, north-west China. Int J Water Resour Dev. 34(3):354–368. 10.1080/07900627.2016.1238348.
   Web of Science ®Google Scholar
• Das S, Nag SK. 2017. Geochemical appraisal of fluoride-laden groundwater in Suri I and II blocks, Birbhum district, West Bengal. Appl Water Sci. 7(5):2559–2570. https://doi.org/10.1007/s13201-016-0452-x.
   Web of Science ®Google Scholar
• Datta PS, Tyagi SK. 1996. Major ion chemistry of groundwater in Delhi area: chemical weathering processes and groundwater flow regime. J Geol Soc India. 47(2):179–188.
   Web of Science ®Google Scholar
• Davies BE, Bowman C, Davies TC, Selinus O. 2013. Medical geology: perspectives and prospects. In: Selinus O, editor. Essentials of medical geology. Dordrecht: Springer. p. 1–13.
   Google Scholar
• Dehbandi R, Moore F, Keshavarzi B. 2018. Geochemical sources, hydrogeochemical behavior, and health risk assessment of fluoride in an endemic fluorosis area, central Iran. Chemosphere. 193:763–776. https://doi.org/10.1016/j.chemosphere.2017.11.021.
   PubMed Web of Science ®Google Scholar
• Dharmagunawardhane HA, Malaviarachchi SPK, Burgess W. 2016. Fluoride content of minerals in gneissic rocks at an area of endemic dental fluorosis in Sri Lanka: estimates from combined petrographic and electron microprobe analysis. Ceylon J Sci. 45(1):57–66. http://dx.doi.org/10.4038/cjs.v45i1.7364
   Google Scholar
• Dippong T, Mihali C, Hoaghia MA, Cical E, Cosma A. 2019. Chemical modeling of groundwater quality in the aquifer of Seini town - Someș Plain, Northwestern Romania. Ecotoxicol Environ Saf. 168:88–101. 10.1016/j.ecoenv.2018.10.030.
   PubMed Web of Science ®Google Scholar
• Enalou HB, Moore F, Keshavarzi B, Zarei M. 2018. Source apportionment and health risk assessment of fluoride in water resources, south of Fars province, Iran: stable isotopes (δ18O and δD) and geochemical modeling approaches. App Geochem. 98:197–205. https://doi.org/10.1016/j.apgeochem.2018.09.019.
   Web of Science ®Google Scholar
• Flores-Márquez EL, Jiménez-Suárez G, Martínez-Serrano RG, Chávez RE, Pérez DS. 2006. Study of geothermal water intrusion due to groundwater exploitation in the Puebla Valley aquifer system, Mexico. Hydrogeol J. 14(7):1216–1230. https://doi.org/10.1007/s10040-006-0029-0.
   Web of Science ®Google Scholar
• Freeze R, A, Cherry J, A. 1979. Groundwater. Englewood Cliffs, New Jersey: Prentice-Hall. Inc.
   Google Scholar
• Geetha S, Dharmendira KM. 2021. Investigation of hydrochemical dynamics of groundwater in coastal blocks of Tiruvallur district, Tamilnadu, India. J Chil Chem Soc. 66(4):5352–5357. 10.4067/s0717-97072021000405352.
   Web of Science ®Google Scholar
• Gesim NA, Okazaki T. 2018. Assessment of groundwater vulnerability to pollution using DRASTIC model and fuzzy logic in Herat City, Afghanistan. ijacsa. 9(10):181–188. https://doi.org/10.14569/IJACSA.2018.091021.
   Google Scholar
• Ghassemi Dehnavi A. 2018. Hydrochemical assessment of groundwater using statistical methods and ionic ratios in Aliguodarz, Lorestan, west of Iran. J Adv Environ Health Res. 6(3):193–201. 10.22102/JAEHR.2018.137767.1091
   Google Scholar
• Gibbs RJ. 1970. Mechanisms controlling world water chemistry. Science. 170(3962):1088–1090. https://doi.org/10.1126/science.170.3962.1088
   PubMed Web of Science ®Google Scholar
• González-Audícana M, Saleta JL, Catalán RG, García R. 2004. Fusion of multispectral and panchromatic images using improved IHS and PCA mergers based on wavelet decomposition. IEEE Trans Geosci Remote Sensing. 42(6):1291–1299. https://doi.org/10.1109/TGRS.2004.825593.
   Web of Science ®Google Scholar
• Harrison PT. 2005. Fluoride in water: a UK perspective. J Fluor Chem. 126(11–12):1448–1456. https://doi.org/10.1016/j.jfluchem.2005.09.009
   Web of Science ®Google Scholar
• Helena B, Pardo R, Vega M, Barrado E, Fernandez JM, Fernandez L. 2000. Temporal evolution of groundwater composition in an alluvial aquifer (Pisuerga River, Spain) by principal component analysis. Water Res. 34(3):807–816. https://doi.org/10.1016/S0043-1354(99)00225-0.
   Web of Science ®Google Scholar
• He X, Li P, Ji Y, Wang Y, Su Z, Elumalai V. 2020. Groundwater arsenic and fluoride and associated arsenicosis and fluorosis in China: occurrence, distribution and management. Expo Health. 12(3):355–368. https://doi.org/10.1007/s12403-020-00347-8.
   Web of Science ®Google Scholar
• He S, Wu J. 2019. Hydrogeochemical characteristics, groundwater quality, and health risks from hexavalent chromium and nitrate in groundwater of Huanhe Formation in Wuqi county, northwest China. Expo Health. 11(2):125–137. https://doi.org/10.1007/s12403-018-0289-7.
   Web of Science ®Google Scholar
• Hirata R, Cagnon F, Bernice A, Maldaner CH, Galvão P, Marques C, Terada R, Varnier C, Ryan MC, Bertolo R. 2020. Nitrate contamination in Brazilian urban aquifers: a tenacious problem. Water. 12(10):2709. https://doi.org/10.3390/w12102709.
   Web of Science ®Google Scholar
• Hosseini H, Shakeri A, Rezaei M, Dashti Barmaki M, Rastegari Mehr M, Amjadian K. 2021. Water quality and health risk assessment of lakes in arid regions, case study: Chahnimeh reservoirs in Sistan and Baluchestan Province. SE Iran Arab J Geosci. 14(17):1–15. https://doi.org/10.1007/s12517-021-08051-w
   Google Scholar
• Jamaludin N, Sham SM, Ismail SNS. 2013. Health risk assessment of nitrate exposure in well water of residents in intensive agriculture area. Am J Appl Sci. 10(5):442. https://doi.org/10.3844/ajassp.2013.442.448.
   Google Scholar
• Jankowski J, Shekarforoush S, Acworth RI. 1998. Reverse ion-exchange in a deeply weathered porphyritic dacite fractured aquifer system, Yass, New South Wales, Australia. In: Water-rock interaction. p. 243–246.
   Google Scholar
• Ji Y, Wu J, Wang Y, Elumalai V, Subramani T. 2020. Seasonal variation of drinking water quality and human health risk assessment in Hancheng City of Guanzhong Plain, China. Expo Health. 12(3):469–485. 10.1007/s12403-020-00357-6.
   Web of Science ®Google Scholar
• Kavcar P, Sofuoglu A, Sofuoglu SC. 2009. A health risk assessment for exposure to trace metals via drinking water ingestion pathway. Int J Hyg Environ Health. 212(2):216–227. https://doi.org/10.1016/j.ijheh.2008.05.002.
   PubMed Web of Science ®Google Scholar
• Keshavarzi B, Mokhtarzadeh Z, Moore F, Rastegari Mehr M, Lahijanzadeh A, Rostami S, Kaabi H. 2015. Heavy metals and polycyclic aromatic hydrocarbons in surface sediments of Karoon River, Khuzestan Province, Iran. Environ Sci Pollut Res Int. 22(23):19077–19092. https://doi.org/10.1007/s11356-015-5080-8.
   PubMed Web of Science ®Google Scholar
• Khan S, Cao Q, Zheng YM, Huang YZ, Zhu YG. 2008. Health risks of heavy metals in contaminated soils and food crops irrigated with wastewater in Beijing, China. Environ Pollut. 152(3):686–692. https://doi.org/10.1016/j.envpol.2007.06.056.
   PubMed Web of Science ®Google Scholar
• Khan R, Jhariya DC. 2017. Groundwater quality assessment for drinking purpose in Raipur city, Chhattisgarh using water quality index and geographic information system. J Geol Soc India. 90(1):69–76. https://doi.org/10.1007/s12594-017-0665-0.
   Web of Science ®Google Scholar
• King M, Sturtewagen B. 2010. Making the most of Afghanistan’s river basins. Opportunities for regional cooperation. New York: The EastWest Institute.
   Google Scholar
• Kumar M, Ramanathan AL, Rao MS, Kumar B. 2006. Identification and evaluation of hydrogeochemical processes in the groundwater environment of Delhi, India. Environ Geol. 50(7):1025–1039. https://doi.org/10.1007/s00254-006-0275-4.
   Google Scholar
• Levallois P, Villanueva CM. 2019. Drinking water quality and human health: an editorial. Int J Environ Res Public Health. 16(4):631. https://doi.org/10.3390/ijerph16040631.
   Web of Science ®Google Scholar
• Li P, He X, Li Y, Xiang G. 2019. Occurrence and health implication of fluoride in groundwater of loess aquifer in the Chinese loess plateau: a case study of Tongchuan, Northwest China. Expo Health. 11(2):95–107. https://doi.org/10.1007/s12403-018-0278-x.
   Web of Science ®Google Scholar
• Li R, Kuo YM, Liu WW, Jang CS, Zhao E, Yao L. 2018. Potential health risk assessment through ingestion and dermal contact arsenic-contaminated groundwater in Jianghan Plain, China. Environ Geochem Health. 40(4):1585–1599. https://doi.org/10.1007/s10653-018-0073-4.
   PubMed Web of Science ®Google Scholar
• Liu L, Wu J, He S, Wang L. 2021. Occurrence and distribution of groundwater fluoride and manganese in the Weining Plain (China) and their probabilistic health risk quantification. Expo Health. https://doi.org/10.1007/s12403-021-00434-4.
   Google Scholar
• Logeshkumaran A, Magesh NS, Godson PS, Chandrasekar N., 2015. Hydro-geochemistry and application of water quality index (WQI) for groundwater quality assessment, Anna Nagar, part of Chennai City, Tamil Nadu, India. Appl Water Sci. 5(4):335–343. https://doi.org/10.1007/s13201-014-0196-4.
   Google Scholar
• Lumb A, Sharma TC, Bibeault JF. 2011. A review of genesis and evolution of water quality index (WQI) and some future directions. Water Qual Expo Health. 3(1):11–24. https://doi.org/10.1007/s12403-011-0040-0.
   Google Scholar
• Mahaqi A, Moheghi MM, Mehiqi M, Moheghy MA. 2018. Hydrogeochemical characteristics and groundwater quality assessment for drinking and irrigation purposes in the Mazar-i-Sharif city. North Afghanistan App Water Sci. 8(5):1–10. https://doi.org/10.1007/s13201-018-0768-9
   Web of Science ®Google Scholar
• Mohebbi MR, Saeedi R, Montazeri A, Vaghefi KA, Labbafi S, Oktaie S, Abtahi M, Mohagheghian A. 2013. Assessment of water quality in groundwater resources of Iran using a modified drinking water quality index (DWQI). Ecol Indic. 30:28–34. https://doi.org/10.1016/j.ecolind.2013.02.008.
   Web of Science ®Google Scholar
• Muhammad S, Shah MT, Khan S. 2011. Health risk assessment of heavy metals and their source apportionment in drinking water of Kohistan region, northern Pakistan. Microchem J. 98(2):334–343. https://doi.org/10.1016/j.microc.2011.03.003.
   Web of Science ®Google Scholar
• Narsimha A, Rajitha S. 2018. Spatial distribution and seasonal variation in fluoride enrichment in groundwater and its associated human health risk assessment in Telangana State, South India. Hum Ecol Risk Assess. 24(8):2119–2132. https://doi.org/10.1080/10807039.2018.1438176.
   Web of Science ®Google Scholar
• Narsimha A, Sudarshan V. 2013. Hydrogeochemistry of groundwater in Basara area, adilabad district, Andhra Pradesh. India J App Geochem. 15(2):224–237.
   Google Scholar
• Narsimha A, Sudarshan V. 2017. Contamination of fluoride in groundwater and its effect on human health: a case study in hard rock aquifers of Siddipet, Telangana State, India. Appl Water Sci. 7(5):2501–2512. https://doi.org/10.1007/s13201-016-0441-0.
   Web of Science ®Google Scholar
• Piper AM. 1944. A graphic procedure in the geochemical interpretation of water‐analyses. Trans AGU. 25(6):914–928. https://doi.org/10.1029/TR025i006p00914.
   Google Scholar
• Prasanna MV, Praveena SM, Chidambaram S, Nagarajan R, Elayaraja A. 2012. Evaluation of water quality pollution indices for heavy metal contamination monitoring: a case study from Curtin Lake, Miri City, East Malaysia. Environ Earth Sci. 67(7):1987–2001. https://doi.org/10.1007/s12665-012-1639-6.
   Web of Science ®Google Scholar
• Qaiyum MS, Shaharudin MS, Syazwan AI, Muhaimin A. 2011. Health risk assessment after exposure to aluminium in drinking water between two different villages. J Water Resour Prot. 03(04):268–274. https://doi.org/10.4236/jwarp.2011.34034.
   Google Scholar
• Rahman A, Mondal NC, Tiwari KK. 2021. Anthropogenic nitrate in groundwater and its health risks in the view of background concentration in a semiarid area of Rajasthan. India Sci reports. 11(1):1–13. https://doi.org/10.1038/s41598-021-88600-1
   PubMed Web of Science ®Google Scholar
• Salcedo-Sánchez ER, Hoyos SEG, Alberich MVE, Morales MM. 2016. Application of water quality index to evaluate groundwater quality (temporal and spatial variation) of an intensively exploited aquifer (Puebla valley, Mexico). Environ Monit Assess. 188(10):1–20. https://doi.org/10.1007/s10661-016-5515-9
   PubMed Web of Science ®Google Scholar
• Sarin MM, Krishnaswami S, Dilli K, Somayajulu BLK, Moore WS. 1989. Major ion chemistry of the Ganga-Brahmaputra river system: weathering processes and fluxes to the Bay of Bengal. Geochim Cosmochim Acta. 53(5):997–1009. https://doi.org/10.1016/0016-7037(89)90205-6.
   Web of Science ®Google Scholar
• Şener Ş, Şener E, Davraz A. 2017. Evaluation of water quality using water quality index (WQI) method and GIS in Aksu River (SW-Turkey). Sci Total Environ. 584–585:131–144. https://doi.org/10.1016/j.scitotenv.2017.01.102.
   PubMed Web of Science ®Google Scholar
• Seppa L. 2001. The future of preventive programs in countries with different systems for dental care. Caries Res. 35(Suppl. 1):26–29. https://doi.org/10.1159/000049106
   PubMedGoogle Scholar
• Shroder JF, Eqrar N, Waizy H, Ahmadi H, Weihs BJ. 2022. Review of the geology of Afghanistan and its water resources. Int Geol Rev. 64(7): 1009–1031. https://doi.org/10.1080/00206814.2021.1904297.
   Web of Science ®Google Scholar
• Singh B, Craswell E. 2021. Fertilizers and nitrate pollution of surface and ground water: an increasingly pervasive global problem. SN Appl Sci. 3(4):1–24. https://doi.org/10.1007/s42452-021-04521-8.
   Web of Science ®Google Scholar
• Singh KP, Malik A, Mohan D, Sinha S. 2004. Multivariate statistical techniques for the evaluation of spatial and temporal variations in water quality of Gomti River (India)-a case study . Water Res. 38(18):3980–3992. https://doi.org/10.1016/j.watres.2004.06.011.
   PubMed Web of Science ®Google Scholar
• Sobhanardakani S. 2016. Evaluation of the water quality pollution indices for groundwater resources of Ghahavand plain, Hamadan province, western Iran. Iran J Toxicol. 10(3):35–40. https://doi.org/10.29252/arakmu.10.3.35
   Google Scholar
• Taylor JR. 2003. Evaluating groundwater nitrates from on-lot septic systems, a guidance model for land planning in Pennsylvania. Malvern, PA: Penn State Great Valley, School of Graduate Professional Studies.
   Google Scholar
• The government of Afghanistan, Central Statistics Organization (CSO). 2016. Agriculture development. Kabul: CSO.
   Google Scholar
• Topitsoglou V. 2004. Мonograph. Fluoride Map of Greece and Cyprus-natural fluorinated drinking water. Thessaloniki.
   Google Scholar
• Uhl VW, Tahir MQ. 2003. Afghanistan: an overview of groundwater resources and challenges. Lambertville, NJ: Uhl, Baron and Rana. [accessed November 2015]. http://www.vuawater.com/Case-StudyFiles/Afghanistan/Afghanistan_Overview_of_GW_Resources_Study-2003.pdf.
   Google Scholar
• United States Environmental Protection Agency (USEPA). 1989. Office of Emergency, & Remedial Response, Risk assessment guidance for Superfund: interim final. Vol. 1. Washington, D.C.: Office of Emergency and Remedial Response, US Environmental Protection Agency.
   Google Scholar
• United States Environmental Protection Agency (USEPA). 2001. Reference dose for chronic oral exposure [EB/OL]. [2011-03-20]. http://www.epa.gov/ncea/iris/subst/0076.htm.
   Google Scholar
• United States Environmental Protection Agency (USEPA). 2004. Risk assessment guidance for superfund. Volume I: Human health evaluationmanual (Part E, Supplemental Guidance for Dermal Risk Assessment). Vol. 5. EPA/540/R/99.
   Google Scholar
• United States Environmental Protection Agency (USEPA). 2011. USEPA Regional Screening Level (RSL) Summary Table: November 2011. http://www.epa.gov/regshwmd/risk/human/Index.htm, last update: 6th December, 2011.
   Google Scholar
• Vasanthavigar M, Srinivasamoorthy K, Vijayaragavan K, Ganthi RR, Chidambaram S, Anandhan P, Manivannan R, Vasudevan S., 2010. Application of water quality index for groundwater quality assessment: Thirumanimuttar sub-basin, Tamilnadu, India. Environ Monit Assess. 171(1–4):595–609. https://doi.org/10.1007/s10661-009-1302-1.
   PubMed Web of Science ®Google Scholar
• Verma DK, Bhunia GS, Shit PK, Tiwari AK. 2018. Assessment of groundwater quality of the Central Gangetic Plain Area of India using Geospatial and WQI Techniques. J Geol Soc India. 92(6):743–752. https://doi.org/10.1007/s12594-018-1097-1.
   Web of Science ®Google Scholar
• Viswanathan G, Jaswanth A, Gopalakrishnan S, Siva Ilango S, Aditya G., 2009. Determining the optimal fluoride concentration in drinking water for fluoride endemic regions in South India. Sci Total Environ. 407(20):5298–5307. https://doi.org/10.1016/j.scitotenv.2009.06.028.
   PubMed Web of Science ®Google Scholar
• Wang Y, Li P. 2022. Appraisal of shallow groundwater quality with human health risk assessment in different seasons in rural areas of the Guanzhong Plain (China). Environ Res. 207:112210. https://doi.org/10.1016/j.envres.2021.112210.
   PubMed Web of Science ®Google Scholar
• WHO (World Health Organization), 2011. Guidelines for drinking-water quality. WHO Chron. 38(4):104–108.
   Google Scholar
• Wu J, Wang L, Wang S, Tian R, Xue C, Feng W, Li Y. 2017. Spatiotemporal variation of groundwater quality in an arid area experiencing long-term paper wastewater irrigation, northwest China. Environ Earth Sci. 76(13):460. https://doi.org/10.1007/s12665-017-6787-2
   Web of Science ®Google Scholar
• Wunderlin DA, Diaz MDP, Ame MV, Pesce SF, Hued AC, Bistoni MD. 2001. Pattern recognition techniques for the evaluation of spatial and temporal variations in water quality. a case study: Suquia River Basin (Cordoba Argentina). Water Res J. 35:2881–2894. https://doi.org/10.1016/S0043-1354(00)00592-3
   PubMed Web of Science ®Google Scholar
• Yadav KK, Gupta N, Kumar V, Choudhary P, Khan SA. 2018. GIS-based evaluation of groundwater geochemistry and statistical determination of the fate of contaminants in shallow aquifers from different functional areas of Agra city, India: levels and spatial distributions. RSC Adv. 8(29):15876–15889. https://doi.org/10.1039/C8RA00577J.
   PubMed Web of Science ®Google Scholar
• Yu G, Wang J, Liu L, Li Y, Zhang Y, Wang S. 2020. The analysis of groundwater nitrate pollution and health risk assessment in rural areas of Yantai, China. BMC Public Health. 20(1):437. 10.1186/s12889-020-08583-y.
   PubMed Web of Science ®Google Scholar
• Zahedi S, Azarnivand A, Chitsaz N. 2017. Groundwater quality classification derivation using multi-criteria-decision-making techniques. Ecol Indic. 78:243–252. https://doi.org/10.1016/j.ecolind.2017.03.015.
   Web of Science ®Google Scholar
• Zeng Y, Xie Z, Zou J. 2017. Hydrologic and climatic responses to global anthropogenic groundwater extraction. J Climate. 30(1):71–90. https://doi.org/10.1175/JCLI-D-16-0209.1.
   Web of Science ®Google Scholar
• Zhai Y, Zhao X, Teng Y, Li X, Zhang J, Wu J, Zuo R. 2017. Groundwater nitrate pollution and human health risk assessment by using HHRA model in an agricultural area, NE China. Ecotoxicol Environ Saf. 137:130–142. https://doi.org/10.1016/j.ecoenv.2016.11.010.
   PubMed Web of Science ®Google Scholar
• Zhang Y, Wu J, Xu B. 2018. Human health risk assessment of groundwater nitrogen pollution in Jinghui canal irrigation area of the loess region, northwest China. Environ Earth Sci. 77(7):273. https://doi.org/10.1007/s12665-018-7456-9
   Web of Science ®Google Scholar
• Zimmer S. 2001. Caries-preventive effects of fluoride products when used in conjunction with fluoride dentifrice. Caries Res. 35(1):18–21. https://doi.org/10.1159/000049104.
   PubMedGoogle Scholar