Toxic Elements in Bangladesh’s Drinking Water

Author(s):  
Tahera Akter ◽  
Safayet Khan ◽  
Mahfuzar Rahman
2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Hafizullah Rasouli

This groundwater research is carried out groundwater quality in Jabal Sarage and Charikar Districts. The main objective of this research is to find out natural causes of drinking water contaminations (toxic elements and components), that are leaching from soluble arrangement of rocks,sediments and soil by surface water at the infiltration time, toward the groundwater. For completion this research I used two categories of water analysis; one is areal analysis, and another is laboratory analysis. In areal analysis ten wells have been recovered by this research in Jabal Sarage and Charikar Distracts, a number of Electro-Conductivity, water temperature,dissolved oxygen in water, Total Dissolved Soled (TDS) and the Resolved Salt in Water (SSW), determination Partible ground at areal complete. For laboratory works I used chemical device of Spectra- photo model. From comparing mean of chemical and physical parameters with standards.pH, K, Na, Mg, Cl, Fe, F, TH, Ca and SO4 all are normal and we can use them for drinking and irrigation waters. The challenges that I faced during this research are; absence of research in this area and lack of geological equipment’s.


2021 ◽  
Author(s):  
Zahid Imran Bhatti ◽  
Muhammad Ishtiaq ◽  
Said Akbbar Khan ◽  
javed nawab ◽  
Sardar Khan ◽  
...  

Abstract Accelerated mining activities have increased water contamination with potentially toxic elements (PTEs) and their associated human health risk in developing countries. The current study investigated the distribution of PTEs, their potential sources and health risk assessment in both ground and surface water sources in mining and non–mining areas of Khyber Pakhtunkhwa, Pakistan. Water samples (n=150) were taken from selected sites and were analyzed for six PTEs (Ni, Cr, Zn, Cu, Pb and Mn). Among PTEs, Cr showed high mean concentration (497) μg L–1, followed by Zn (414) μg L–1 in mining area, while Zn showed lowest mean value (4.44) μg L–1 in non-mining areas. Elevated concentrations of Ni, Cr and moderate level of Pb in ground and surface water of Mohmand District exceeded the permissible limits set by WHO (2017). Multivariate statistical analyses showed that pollution sources of PTEs were mainly from mafic-ultramafic rocks, acid mine drainage, open dumping of mine-wastes and mine tailings. The hazard quotient (HQ) was highest for children relatively to adults, but not higher than the US-EPA limits. The hazard index (HI) for ingestions of all selected PTEs were lower than the threshold value (HIing <1), except Mohmand District which showed (HI >1) in mining areas through ingestion. Moreover, the carcinogenic risk (CR) values exceeded the threshold limits for Ni and Cr set by the US-EPA (1.0E−04 to 1.0E−06). In order to protect the drinking water sources of the study areas from more contamination, the management techniques and policy for mining operations need to be implemented.


Toxin Reviews ◽  
2018 ◽  
Vol 39 (3) ◽  
pp. 258-265
Author(s):  
Sima Zamand ◽  
Hossein Alidadi ◽  
Maryam Sarkhosh ◽  
Aliakbar Dehghan ◽  
Hamid Heidarian ◽  
...  

Earth ◽  
2022 ◽  
Vol 3 (1) ◽  
pp. 18-30
Author(s):  
Md Nadiruzzaman ◽  
Hosna Jahan Shewly ◽  
Afsana Afrin Esha

Plastic, an offer of modernity, has become one of the essential parts of our everyday life. However, it is presenting a massive threat in altered forms, to our health and environment. Plastic does not only pollute the surface environment, freshwater, and marine ecosystems, but toxic elements released from plastics also percolate down the surface and contaminate groundwater, which we often use as ‘safe’ drinking water. This probable future risk is deeply rooted in the entire governance infrastructure of plastic waste which could potentially lead to contamination of groundwater. Thus, a state-sponsored ‘safe drinking water’ initiative could contrarily produce a ‘risk society’. A recent study finds 81% of tap water samples collected worldwide contained plastic pollutants, which means that annually we may be ingesting between 3000 and 4000 microparticles of plastic from tap water. Based on review, ethnographic observations and interviews, and lived experience in a plastic-wrapped city (Dhaka), this paper sheds light on the complex interface of plastic, water, and public health, on the relevance of Beck’s ‘risk society’ to understand this complexity, and on replicating the idea of ‘risk society’ in the case of Bangladesh. Through understanding the plastic–groundwater–waste management nexus, this paper highlights and advocates for a new strategy of plastic governance in modern states.


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