Journal of Environment Pollution and Human Health
ISSN (Print): 2334-3397 ISSN (Online): 2334-3494 Website: Editor-in-chief: Dibyendu Banerjee
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Journal of Environment Pollution and Human Health. 2014, 2(2), 44-51
DOI: 10.12691/jephh-2-2-2
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Assessing Risks to Human Health from Potentially Toxic Elements in Drinking Water of Duhok Province/ Kurdistan Region of Iraq

Karzan. Hawrami1, and Hassan. Mezuri2

1Polytechnique university of Sulaymanyah/Technical Institute of Halabja, Halabja/ Iraq

2The University of Duhok, collage of science/ Duhok /Iraq

Pub. Date: June 26, 2014

Cite this paper:
Karzan. Hawrami and Hassan. Mezuri. Assessing Risks to Human Health from Potentially Toxic Elements in Drinking Water of Duhok Province/ Kurdistan Region of Iraq. Journal of Environment Pollution and Human Health. 2014; 2(2):44-51. doi: 10.12691/jephh-2-2-2


The monitoring and assessment of water has become an environmental concern due to contamination caused by man-kind. The main aim of this study is to evaluate the levels of As and some other heavy metals in the pre and post treated water of the projects in Duhok province and to assess the efficiency of these water projects for filtration and purification of drinking water in terms of potentially toxic metals. This study coveres the water purification projects of the entire Duhok governorate areas (Semel, Chambarkat, Zakho, Akre, Shekhan and Amedy). Water samples were collected monthly from August 2008 to July 2009. The results indicated that the As concentration in pretreated water from the Duhok and zakho water project was higher than the WHO guide lines for drinking water (10µg.L-1), whereas in the treated water from the Duhok project its concentration remains above guideline levels. Other metals such as Cd, Pb and Ni at all of the studied projects were higher than the permissible limits in both pre and post treated water, according to the WHO guideline values (3,10 and 20 µg.L-1) respectively, while Cr and Zn were lower than the permissible limit. The values of combined HQ were >1 for all PTEs in drinking water of Duhok, Chamberkat, Zakho and Amedy samples indicating health hazards for the local population. To conclude, the consumption of drinking water may pose high risk to the local population.

assessing risks drinking water Potentially Toxic Elements (PTEs) Hazar Quotient (HQ) Duhok province

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[1]  S.A. Abbawi, and M. S. Hassan, Practical Ecological Engineering, Water examination. Ministery of higher education and Scientific research-Iraq. Dar-AL-Hikma Publisher, University of Mosul-Iraq, 1990.
[2]  I. Bárány-Kevei, E. Sz˝oke, R. Kaszala, Research on heavy metal contamination in the Aggtelek karst area in Hungary. J. Geoph. Res. Abs. 7 (2005) 1607-7962.
[3]  S. Chuanuwatanakul, W. Dungchai, O. Chailapakul, S. Motomizu, Determination of trace heavy Metals by Sequential Injection-anodic Stripping Voltammetry using Bismuth Film Screenprinted Carbon Electrode. J. Analy. Sci. 24 (2008) 589-594.
[4]  K. Kido, T. Shiratori, T. Watanabe, H. Ohashi, M. Ikeda, Correlation of tetrachloroethylene in blood and in drinking water: a case of well water pollution. Bull. Environ. J. Contam. Toxicol, 43 (1989) 444-453.
[5]  A. Navas-Acien, E. K. Silbergeld, R. A. Streeter, J. M. Clark, T. A. Burke, E. Guallar, Arsenic exposure and type 2 diabetes: a systematic review of the experimental and epidemiological evidence. J. Environ.l Heal. Persp. 114 (2006) 641-648.
[6]  J. H. Lubin, F. L. Beane, K.P. Cantor, Inorganic arsenic in drinking water: an evolving public health concern. J. Natl. Cancer Inst. 99 (2007) 906-907.
[7]  L. Barbiero, S. C. Furquım; V. Valles, S. Furian, A. Sakamoto, A. R. Filho, M. Fort, Natural arsenic in groundwater and alkaline lakes at the upper Paraguay basin, Pantanal, Brazil. J. Ars. in Soil and Ground. Environ. 9 (2007) 101-126.
[8]  Ghafoor, A. (2009). Southern Kurdistan Geography. 1st Ed. Kurdology Center, Ranj press, Sulaimani, Kurdistan region of Iraq.(In Kurdish).
[9]  Saeed, M. A. (2001). Agrometrology in north Iraq. Agrometrology office FAO coordination office for northern Iraq. 1-14.
[10]  M.S. Duhoki, Sclassification of Some wells and Spring water in Duhok Governorate for Irrigation and Drinking Purposes. Msc. thesis, University of Duhok, 1997.
[11]  I. Y. R. Al-Nakshabandi, A Phycolimnological study on Duhok impoundment and its main watershed. Ph. D. Thesis. University of Salahaddin, 2002.
[12]  M. R. Ahmed, A. S. Shahab, S. M. Al-rawi, water quality of selected springs in Zaweta Districts Northern Iraq: Comparative study. 1st Science Conference of EPCRC, Mousle university, 2007
[13]  American Public Health Association (APHA). Standard Methods for the examination of water and waste water. 21th Ed. A.P.H.A. 1015 Fifteenth Street, NW, Washington, DC, 1999.
[14]  F. J. Mackereth, J. Heron, J. F. Talling, Water analysis some revised methods for limnologists. J. Fr. Wat. Bio. Asso. Sci. pub. 36 (1978) 11-19.
[15]  US EPA, Guidance for Performing Aggregate Exposure and Risk Assessments, Office of Pesticide Programs, Washington, DC, 1999.
[16]  S. Muhammad, M.T. Shah, S. Khan, Arsenic health risk assessment in drinking water and source apportionment using multivariate statistical techniques in Kohistan region, northern Pakistan, Food Chem. Toxicol. 48 (2010) 2855-2864.
[17]  US EPA, Guidelines for Carcinogen Risk Assessment, EPA/630/P-03/001F, Risk Assessment Forum, Washington, DC, 2005.
[18]  S. Khan, Q. Cao, Y.M. Zheng, Y.Z. Huang, Y.G. Zhu, Health risks of heavy metals in contaminated soils and food crops irrigated with wastewater in Beijing China, Environ. Pollut. 152 (2008) 686-692.
[19]  S. Dixit, S. Tiwari, Impact Assessment of Heavy Metal Pollution of Shahpura Lake, Bhopal, India. Inte. J. Env. Res. 2 (2008) 37-42.
[20]  Q. A. Nabi, Limnological and bacteriological study in some wells within Erbil city Kurdistan region of Iraq. MSc. Thesis University of Salahaddin, 2005.
[21]  B. A.Othman, Limnology and Higenic status of some water resources Within koya Erbil Kurdistan region of iraq. MSc. thesis University of Koya, 2008
[22]  M. E. Goher, Chemical studies on the precipitation and dissolution of some chemical elements in Lake Qarun. Ph.D. Thesis, Faculty of Science, Al-Azhar University, Cairo, Egypt, 2002
[23]  World Health Organization (WHO. Guidelines for Drinking Water Quality.) 3rd ed., Recom., Geneva, 1 (2006) 417-434.
[24]  S. P. Singh, P. Deepa, S. Rashmi, Hydrobiological Studies of two ponds of Satna (M.P.). India, Eco. Environ. Cons., 8 (2002) 289-292.
[25]  S. A. Muhammad, An Ecological Study on the Aquatic Life of Sarchinar Spring, Chaq-Chaq and Kliassan Streams, Sulaimani, Kurdistan Region of Iraq. M.Sc. Thesis, Coll. of Science, University of Sulaymani, 2004.
[26]  S. Y. hekha, The effect of Arbel city waste water Discharge on water quality of Greater Zab river, and the risks of Irrigation. PhD. thesis, Collage of Science, university of Baghdad, 2008
[27]  O. S. Fatoki, R. Awofol, Levels of Cd, Hg and Zn in some surface waters from the Eastern Cape Province, South Africa. J. Water S. A. 29 (2003) 375-379.
[28]  P. B. Ryan, N. Huet, D. L. Macintoshl, Longitudinal Investigation of Exposure to Arsenic, Cadmium, and Lead in Drinking Water. Env. Heal. Pers., 108 (2000) 731-735.
[29]  World Health Organization (WHO), Zinc in drinking-water. Background document for preparation of WHO Guidelines for drinking-water quality.) Geneva, 17 (2003) 3-4.
[30]  United Station Environmental Protection Agency (USEPA. National primary drinking water regulations for lead and copper. Federal register, 53 (2004) 515-578.
[31]  J. Virkutyte, M. Sillanpa¨a, Chemical evaluation of potable water in Eastern Qinghai Province, China: Human health aspects. Env. Inter. 32 (2006) 80-86.
[32]  M. Mosaferi, M. Yunesian, A. Mesdaghinia, A. Nadim, S. Nasseri, A. H. Mahvi, Arsenic Occurrence in Drinking Water of I.R of Iran: The Case of Kurdistan Province. J. Env. Heal. Eng., 45 (2002) 145-150.
[33]  G. Tamasi, R. Cini, Heavy metals in drinking waters from Mount Amiata (Tuscany, Italy). Possible risks from arsenic for public health in the Province of Siena. J. Sci. Total Env., 327 (2004) 41-51.
[34]  V. A. Nguyen, B. Sunbaek, H. V. Pham, K. Kyoung-Woong, Contamination of groundwater and risk assessment for arsenic exposure in Ha Nam province, Vietnam. (2009), J. Env. Inter. 35 (2009) 466-472.
[35]  X. Savarimuthu, M. M. Hira-Smith, Y. Yuan, S. Ondine, V. Ehrenstein, S. Das, N. Ghosh, D. N. Mazumder, A. Smith, Seasonal Variation of Arsenic Concentration in Tubewells in West Bengal, India. J. heal pop. Nut. 24 (2006) 277-281.
[36]  S. M. I. Sajidu, W. R. L. Samba, E. M. T. Henry, S. M. Kuyeli, Water quality assessment in streams and wastewater treatment plantsof Blantyre. Malawi. J. Phys. and Che. Ear. 32 (2007) 1391-1398.
[37]  O. Akoto, T. N. Bruce, and G. Darko, Heavy metal pollution profile in streams serving the Owabi reservoir. Afr. J. Env. Sc. Tech. 2 (2008) 354-359.
[38]  S. Cheng, Heavy Metal Pollution in China: Origin, Pattern and Control. Jou. of Env. Sci. & Poll. Res. 10 (2003) 192-198
[39]  I. Ali, C. K. Jain, Pollution potential of toxic metals in the Yamuna River at Delhi, India., J. Env. Hyd. 9 (2001) 1-9.
[40]  M. R. Schock, Causes of temporal variability of lead in domestic plumbing systems., J. Env. monit. asse. 15 (1990) 59.
[41]  G. Rajaratnam, C. Winder, M. An, Metals in Drinking Water from New Housing Estates in the Sydney Area., J. Env Res. Sec. 89 (2002) 165-170.
[42]  S.v. Temersiv, M. V. Savkin, Heavy metals as status indicator For the Ob, River. J. Chem. sust. dev. 12 (2004) 553-564.
[43]  M. B. Khan, N. C. Paul, M. Baten, M. A. Sattar, Contamination and Seasonal fluctuations of trace metals in sewage water of Dhaka metropolitan city. Bang. J. Env. Sci., 11 (2005), 246-252.
[44]  Agency for Toxic Substances and Disease Registry (ATSDR). Toxicological profile for Nickel. Atlanta, GA, US Department of Health and Human Services. Public Health Service, Agency for Toxic Substances and Disease Registry, (2000), P. 109.
[45]  A. Kaushik, A. Kansal, S. Meena, S. Kumari, C.P. Kaushik, Heavy metal contamination of river Yamuna, Haryana, India: Assessment by Metal Enrichment Factor of the Sediments. J. Haz. Mat., 164 (2009) 265-270.
[46]  M. Soyalk, F. A. Aydin, S. Saracoglu, L. Elci, M. Dogan, Chemical Analysis of Drinking Water Samplesfrom Yozgat, Turkey. Polish J. of Env. Stu. 11(2002) 151-156.
[47]  P A. K. apafilippaki, M. E. Koti, G. G. Stavrolakis, Seasonal variation in dissolved heavy metalsin the keritisRiver China. Greece. Proceeding of the 10th inter. Conf. tech., Kos island, Creece 5-7 September, 2007.
[48]  P. Kavcar, A. Sofuoglub, S.C. Sofuoglub, A health risk assessment for exposure to heavy metals via drinking water ingestion pathway, Int. J. Hyg. Environ. Health. 212 (2009) 216-227.
[49]  H.S. Lim, J.S. Lee, H.T. Chon, M. Sager, Heavy metal contamination and health risk assessment in the vicinity of the abandoned Songcheon Au-Ag mine in Korea, J. Geochem. Explor. 96 (2008) 223-230.