Preprint Article Version 1 This version is not peer-reviewed

Human Health Risk Assessment of Nitrate and Trace Metals Via Groundwater in Central Bangladesh

Version 1 : Received: 6 January 2019 / Approved: 8 January 2019 / Online: 8 January 2019 (15:32:41 CET)

How to cite: Rahman, M.; Bodrud-Doza, M.; Muhib, M.I.; Hossain, K.F.B.; Hossain, M.S.; Akter, S.; Sikder, M.T.; Shammi, M.; Uddin, M.K. Human Health Risk Assessment of Nitrate and Trace Metals Via Groundwater in Central Bangladesh. Preprints 2019, 2019010075 (doi: 10.20944/preprints201901.0075.v1). Rahman, M.; Bodrud-Doza, M.; Muhib, M.I.; Hossain, K.F.B.; Hossain, M.S.; Akter, S.; Sikder, M.T.; Shammi, M.; Uddin, M.K. Human Health Risk Assessment of Nitrate and Trace Metals Via Groundwater in Central Bangladesh. Preprints 2019, 2019010075 (doi: 10.20944/preprints201901.0075.v1).

Abstract

Groundwater plays a pivotal role as the largest potable water sources in Bangladesh. However, the quality of the groundwater faces challenges due to xenobiotic compounds in it. Excess amount of arsenic (As) has already been found in groundwater in many parts of Bangladesh. Thus, this study was conducted to assess the water quality and associated human health risk in central Bangladesh. A total of 99 groundwater samples from the central part of Bangladesh were analyzed to assess human health risk due to high level of nitrate (NO3-) and other trace elements i.e. arsenic (As), iron (Fe), and manganese (Mn). It was found that NO3- concentration (253.17 mg/L) in the groundwater samples exceeds the recommended guideline value by the WHO (50 mg/L). Moreover, this study area also characterized with elevated concentration of As (19.44 µg/L), Fe (811.35 µg/L), and Mn (455.18 µg/L) in the groundwater. Non-carcinogenic human health risk was calculated by justifying HQ (Hazard Quotient) and HI (Hazard Index) and attributed potential conjunctive human health risks due to NO3-, As, Fe and Mn in the study area. Moreover, high carcinogenic risk was found due to As contamination in the groundwater samples in the study area.

Subject Areas

arsenic; health risk assessment; hazard quotient; hazard index; trace metals

Readers' Comments and Ratings (0)

Leave a public comment
Send a private comment to the author(s)
Rate this article
Views 0
Downloads 0
Comments 0
Metrics 0
Leave a public comment

×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.