Int. J. Biosci.13(4), 1-7, October 2018
Majority of our population does not have access to clean drinking water in Pakistan. Quality of tap water is highly unreliable and people use water from filtration plants installed by the Punjab government for drinking purpose. The purpose of this study was to analyze the quality of drinking water from twelve filtration plants in Rawalpindi region. Fifteen parameters were studied including EC, magnesium, calcium, turbidity, lead, zinc, manganese, chromium, sulfate, nitrate, chloride, hardness, pH, dissolved oxygen (DO) and Fecal coliform bacteria. Analytical work was carried out in in the Department of Soil Science, PMAS- Arid Agriculture University Rawalpindi. It was noted that nitrate concentration was high in five water samples. No water sample was found contaminated with fecal coliform bacteria. EC, pH, calcium, sodium, turbidity, sulfate and dissolved oxygen were found as per WHO guidelines. Manganese and zinc were either not detected or they were in small amounts which was within safe limit. Cr content ranged from 0.098 to 1.26 mg/L while Pb content in two water samples was 0.09 and 0.129 mg/L respectively. It was concluded from this study that 80% of drinking water samples were fit for drinking purpose and 20% drinking water samples were unfit for drinking because of high concentration of chromium and Pb. There is immediate need to resort to protective measures and treatment technologies to deal with high chromium content of drinking water.
Ahmed R. 1998. Impact of environment pollution in Rawalpindi and Islamabad. 24th WEDC conference: Sanitation and Water for All, 157-158.
Afzal BM. 2006. Drinking water and women’s health. Journal of Midwifery and Woman Health 51, 12-18.
Clasen TF, Bastable A. 2003. Faecal contamination of drinking water during collection and household storage: the need to extend protection to the point of use. Journal of Water and Health 1, 109-115.
Dimirkou A, Doula MK. 2008. Use of clinoptilolite and Fe over exchanged clinoptilolite in Zn and Mn removal from drinking water. Desalination 224, 280-292.
Ezeonu FC, Egboka BCE, Okaka ANC. 1992. Nitrate and nitrite in some non-alcoholic beverages and water supplies in Onitsha, Nigeria. Journal of Food Science and Technology 29, 329-330.
Farooq SI, Hashmi IA, Qazi S, Qaiser S, Rasheed A. 2008. Monitoring of Coliforms and chlorine residual in water distribution network of Rawalpindi, Pakistan. Environment Monitoring and Assess 140, 339-347.
Giller KE, Witter E, Mcgrath SP. 1998. Toxicity of heavy metals to microorganisms and microbial processes in agricultural soils: a review. Soil Biology and Biochemistry 30, 1389-414.
GOP. 2008. Quality drinking water standards for Pakistan includes legislating, implementing and monitoring framework. Ministry of health and World Health organization.
Hussain R, Mateen A. 1998. Analysis of potable water in Dera Ghazi Khan. Proceeding: National workshop on Quality of Drinking water, March 7, PCRWR, Islamabad.
IARC. 2012. A Review of Human Carcinogens: Metals, Arsenic, Fibres and Dusts. International Agency for Research on Cancer: Monographs on the evaluation of carcinogenic risks to humans. Lancet Oncology 10, 453-454. http://dx.doi.org/10.1016/S1470-2045(09)70.134-2
Javaid S, Shah GS, Chaudhary AJ, Khan MH. 2008. Assessment of trace metal contamination of drinking water in the pearl valley Azad Jammu and Kashmir. Clean- soil air and water 36, 216-221. https://doi.org/10.1002/clen.200700055
Kabata-Pendias A. 2011. Trace Elements in Soils and Plants, CRC Press, New York, NY, USA, 2011.
Azizullah A, Khattak MNK, Richter P, Häder D. 2011. Water pollution in Pakistan and its impact on public healtha-review. Environment International 37, 479-497. https://doi.org/10.1016/j.envint.2010.10.007
Kavcar P, Sofuoglu A, Sofuoglu SC. 2008. A health risk assessment for exposure to trace metals via drinking water ingestion pathway. International Journal of Hygiene and Environmental Health 212, 216-227. https://doi.org/10.1016/j.ijheh.2008.05.002
Kent JP, Greenspan JR, Herndon JL. 2000. Epidemic giardiasis caused by a contaminated public water supply. American Journal of Public Health 78, 139-143.
Kazmi SS, Khan SA. 2005. Level of nitrate and nitrite contents in drinking water of selected samples received at AFPGMI, Rawalpindi. Pakistan Journal of Physiology 1, 1-2.
Latif MA, Akram M, Altaf S. 1999. Ground water contamination from nitrates in irrigated areas of Pakistan. Procedding: Water Resources Achievements and issues in 20th Century and Challenges for Next Millennium, June, 28-30 PCRWR, Islamabad.
Malick MF, Karim W, Akhtar A, Jilani S. 1998. Drinking water quality in the city of Karachi. 24th WEDC Conference, Sanitation and Water for All. Islamabad Pakistan, 261-263.
Manzoor S, Shah MH, Shaheen N, Khalique A, Jaffar M. 2006. Multivariate analysis of trace metals in textile effluents in relation to soil and groundwater. Journal of Hazardous Materials 137, 31–37. https://doi.org/10.1016/j.jhazmat.2006.01.077
Nikson RT, McArthur JM, Sherestha B, Kyaw- myint TO, lowry D. 2005. Arsenic and other drinking water Quality issues in distric Muzaffargarh, Pakistan. Applied Geochemistry 20, 55-68. https://doi.org/10.1016/j.apgeochem.2004.06.004
PCRWR. 2010. Water Quality Status in Rural Areas of Pakistan. Pakistan Council of Research in Water Resources, Islamabad, Pakistan.
Qaiser S, Hashmi I, Nasir H. 2014. Chlorination at treatment plant and drinking water quality: A case study of different sectors of Islamabad, Pakistan. Arabian Journal for Science and Engineering 39, 5665–5675.
Solomons NW, Ruz M. 1998. Trace element requirements in humans: an update. The Journal of Trace Elements in Experimental Medicine 11, 177–195. https://doi.org/10.1002/(SICI)1520670X(1998)11:2/3<177::AID-JTRA9>3.0.CO;2-5
Tariq SR, Shah MH, Shaheen N, Jaffar M, Khalique A. 2008. Statistical source identification of metals in groundwater exposed to industrial contamination. Environmental monitoring and assessment 138, 159–165.
Tahir MA. 1989. Pollution problems in the water supply system of Islamabad and Rawalpindi. PCRWR, Islamabad.
Tun, KM, Thuzar TN, Min KO, Than TS. 2003. Arsenic contamination of ground water: An emerging health concern. WHO Regional Health Forum 7, 48–56.
WHO. 2006. Guideline for drinking water quality. 4th edition, (Electronic source).
WWF. 2007. Pakistan’s Waters at risk: Freshwater and Toxics Programme, WWF-Pakistan.