An Insight into the Discovery of the Contamination of the Environment and Drinking Water by Pharmaceuticals

2014 ◽  
pp. 11-20
Author(s):  
Thomas Heberer
Keyword(s):  
Drinking Water ◽  
Insight Into

scholarly journals Rain water quality assessment as air quality indicator in Pakistan

2019 ◽  
Vol 54 (2) ◽  
pp. 161-168
Author(s):  
G Yaqub ◽  
A Hamid ◽  
S Asghar
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Air Quality ◽  
Water Quality Assessment ◽  
Rain Water ◽  
Domestic Water ◽  
Indirect Evaluation ◽  
Potential Use ◽  
Insight Into

Rain is an effective way for removing pollutants from the atmosphere. The present study was initiated to determine rain water quality for its safe use as potable water, as well as a tool for indirect evaluation of air quality of different study areas. A total of 20 rain water samples were collected from areas including Kasur, Sheikhupura, Gujranwala and Lahore. The pH (5.49 + 0.323), turbidity (12.267 + 5.933NTU), Cl- (4785 + 1458.32ppm) and F- (16.44 + 4.52ppm) contents of samples are not in compliance with drinking water quality limits (Pakistan, WHO). Average sulphate (1.396 + 0.384 ppm) and NO3 − concentrations (52.35 + 12.11ppm) varied between 1.005-2.05ppm and 36.79-81.3ppm, respectively. Heavy metals analysis showed presence of Cu, Co, Mn and Zn concentrations below WHO limits while Cd and Pb concentrations exceeded WHO limits with values ranging between 0.005ppm-0.017ppm and 19ppm-254ppm, respectively . Findings indicate that rain water can provide an insight into the air quality of an area and its potential use as an alternative to drinking water, especially in areas of short domestic water supply. Bangladesh J. Sci. Ind. Res.54(2), 161-168, 2019

New insight into the formation of polyhalogenated carbazoles: Aqueous chlorination of residual carbazole under bromide condition in drinking water

2019 ◽  
Vol 159 ◽  
pp. 252-261 ◽  
Author(s):  
Guowei Wang ◽  
Jiakuan Yang ◽  
Shixiang Gao ◽  
Huijie Hou ◽  
Keke Xiao ◽  
...  
Keyword(s):  
Drinking Water ◽  
Insight Into

Pymatuning earthquake in Pennsylvania and Late Minoan Crisis on Crete

2007 ◽  
Vol 7 (1) ◽  
pp. 245-251 ◽  
Author(s):  
Y. Gorokhovich ◽  
G. Fleeger
Keyword(s):  
Drinking Water ◽  
Case Studies ◽  
Water Loss ◽  
Numerous Case ◽  
The World ◽  
The One ◽  
Insight Into

One of the previously published hypotheses on Late Minoan Crisis on Crete considers water loss in aquifers as a reason that forced late Minoan people to abandon their palaces and settlements. According to this hypothesis the water loss in aquifers is attributed to the activity of repeated earthquakes at that time. This hypothesis was supported by numerous case studies of the effects of earthquakes on aquifers in various geological regions around the world. Presented study concentrates on detailed description of the one of the most interesting cases, the aquifer in Pennsylvania (USA) damaged by the relatively moderate Pymatuning earthquake in 1998, and compares its geological settings with similar conditions on Crete, specifically near Phaistos and Knossos palaces. Pymatuning earthquake resulted in devastating effect on approximately 120 households that lost drinking water from wells. The lessons from Pymatuning earthquake provide a unique insight into similar situation that could occur 3,600 years BP on Crete.

Tools to monitor corrosion of cement-containing water mains

2004 ◽  
Vol 49 (2) ◽  
pp. 33-39 ◽  
Author(s):  
P.G.G. Slaats ◽  
G.A.M. Mesman ◽  
L.P.M. Rosenthal ◽  
H. Brink
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Large Scale ◽  
Water Network ◽  
Asbestos Cement ◽  
Water Mains ◽  
Water Companies ◽  
Pipe Replacement ◽  
Non Destructive ◽  
Insight Into

Approximately 40,000 km of the drinking water network in The Netherlands consists of asbestos cement water pipes. The number of fractures in these pipes has increased greatly in recent years. This is due to corrosion of the asbestos cement (AC) which affects the condition of the pipe. Every time a fracture occurs, the question is raised of whether the pipe in question has to be replaced or repaired. A relatively simple destructive technique and non-destructive tests are used on a large scale to assess the condition of the AC pipes in use. Not only is corrosion detrimental to the pipes themselves, it also influences the water quality. Corrosion of the inner walls of cement-containing pipes involves the leaching of hydroxides. This causes pH changes resulting in scaling in water mains and domestic installations. Monitoring techniques have been developed to determine the effects of leaching on water quality. The large-scale use of the relatively simple techniques at water companies increases insight into the condition of the drinking water network, the life expectancy of the pipes and the effects of corrosion on the water quality. Applying these techniques enables those involved to make decisions on pipe replacement and to provide solutions for reducing the effects of leaching.

scholarly journals Effects of 2,2-dichloroacetamide (DCAcAm), an emerging disinfection by-product in drinking water, on the intestinal microbiota of adult zebrafish

2019 ◽  
Vol 17 (5) ◽  
pp. 683-690 ◽  
Author(s):  
Bin Xue ◽  
Chenyu Li ◽  
Shang Wang ◽  
Chen Zhao ◽  
Kun Dai ◽  
...  
Keyword(s):  
Drinking Water ◽  
Gut Microbiota ◽  
Toxicity Assessment ◽  
Adult Zebrafish ◽  
Opportunistic Pathogens ◽  
Adverse Health Effects ◽  
Complex Interactions ◽  
By Products ◽  
Insight Into ◽  
Gut Microbiota Composition

Abstract The presence of disinfection by-products (DBPs) increases the mutagenicity of water and may pose adverse health effects. Gut microbiota exerts a fundamental role on host physiology, and how extrinsic perturbations influence its composition has been increasingly examined. However, the effect of DBPs on gut microbiota is still poorly understood. In the present study, adult zebrafish were exposed to different concentrations of dichloroacetamide (DCAcAm, an emerging nitrogenous DBP) for 30 days. Sequencing of 16S rRNA amplicons revealed a significant change in the richness and diversity of microbiota in the gut of DCAcAm-exposed zebrafish. At the phylum level, the abundance of Proteobacteria decreased and the abundance of Fusobacteria and Firmicutes increased significantly in the gut after exposure to 100 and 500 μg/L DCAcAm. At the genus level, the abundances of several bacteria which are considered pathogens or opportunistic pathogens in fish and closely related to fish metabolism, disease and inflammation (Aeromonas, Stenotrophomonas, Bacteroides and Ralstonia) increased in the DCAcAm-treated groups. Our results reveal that DBPs in drinking water potentially affect gut microbiota composition, which may contribute to the toxicity assessment of DBPs in future and provide new insight into the complex interactions between the DBPs in drinking water and host health.

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