How water quality standards for pesticides affect the classification of the chemical status of rivers

2019 ◽  
Vol 6 (6) ◽  
Author(s):  
Marianne Milano ◽  
Nathalie Chèvre
Keyword(s):  
Water Quality ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Chemical Status

An assessment of the impact of the proposed EU bathing water directive on Irish coastal bathing area compliance

2005 ◽  
Vol 51 (3-4) ◽  
pp. 225-230 ◽  
Author(s):  
R. Chawla ◽  
K. Real ◽  
B. Masterson
Keyword(s):  
Water Quality ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Microsoft Excel ◽  
Microbial Water Quality ◽  
Bathing Water Directive ◽  
Bathing Water ◽  
Good Classification ◽  
The Impact

An assessment of the impact of the new microbial water quality standards of the proposed EU Bathing Water Directive on the classification of designated Irish coastal bathing areas is presented. The new standards are applied retrospectively to the microbial water quality results for the bathing seasons of 1999, 2000 and 2001, and the outcome is compared with that recorded under the present Bathing Water Directive. A Microsoft EXCEL application was developed to generate the retrospective bathing area classifications according to the proposed Directive (Excellent, Good, Poor). It was found that the number of Irish coastal bathing areas not attaining ‘Excellent’ classification (as would be required at present for the Blue Flag award) was trebled; the number attaining ‘Good’ classification was increased by about 50%, and the number attracting ‘Poor’ classification (equivalent to ‘Fail’ under the present Directive) was increased nine-fold. Some of the shortcomings of the proposed Directive and suggestions for its revision are discussed.

scholarly journals Hydrogeochemical analysis of part of the alluvial aquifer, Rupendehi District, Nepal

2019 ◽  
Vol 58 ◽  
pp. 171-180
Author(s):  
Anusha Sharma Pandey ◽  
Kristine Walraevens
Keyword(s):  
Water Quality ◽  
Quality Standards ◽  
Small Concentration ◽  
Water Type ◽  
Water Quality Standards ◽  
Piper Diagram ◽  
Drinking And Irrigation ◽  
Major Cations ◽  
Applied Geology

This study is mainly focused on detail hydrogeochemical study and water quality test of inorganic constitutes for drinking and irrigation purposes. The study area occupies part of the Siwalik and the Terai with total area of 331 sq. km. Total 30 samples were analysed at applied geology and hydrogeology laboratory, Ghent University, Belgium. The major cations (Na+, Ca2+, Mg2+, K+, Fe2+, Mn2+, Al3+ and NH4+), anions (Cl-, SO42-, NO3-, NO2-, HCO3-, CO32-, PO43-, and OH-) and trace elements (F- and Br-) were measured. Results were treated using Piper diagram, Scatter diagram and Stuyfzand (1986) classification of groundwater. It showed that groundwater of the study area was slightly acidic to basic in nature. Ca2+ and Mg2+ and HCO3- were major cations and anion for all samples. The sources of these ions in the water were from dissolution of calcite (CaCO3) and dolomite CaMg (CO3)2. The amount of Na+ and K+ was from hydrolysis reaction of silicate minerals such as K-feldspar and Na-feldspar. Small concentration of SO4-2 was from oxidation of pyrite. Most of the samples (27 out of 30) were fresh, moderately hard, CaHCO3 water type with surplus of (Na++K++Mg2+). Water of the study area was found suitable both for drinking and irrigation purposes in accordance with WHO (2004) and National Drinking Water Quality Standards (2005).

scholarly journals Assessment of Quality of Groundwater in Kandarvakottai and Karambakudi Areas of Pudukkottai District, Tamilnadu, India

2009 ◽  
Vol 6 (3) ◽  
pp. 898-904
Author(s):  
D. Ilangeswaran ◽  
R. Kumar ◽  
D. Kannan
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Physicochemical Parameters ◽  
Quality Standards ◽  
Physicochemical Characteristics ◽  
Total Dissolved Solids ◽  
Water Quality Standards ◽  
Standard Procedures ◽  
Groundwater Samples

Various samples of groundwater were collected from different areas of Kandarvakottai and Karambakudi of Pudukkottai District, Tamilnadu and analyzed for their physicochemical characteristics. The results of this analysis were compared with the water quality standards of ISI, WHO and CPHEEO. In this analysis the various physicochemical parameters such as pH, electrical conductivity, turbidity, total dissolved solids, Cl-, F-, SO42-, PO43-, NO3-, NO2-, CN-, Nas+, K+, NH3, Mn, Fe, Ca & Mg hardnessetc., were determined using standard procedures. The quality of groundwater samples were discussed with respect to these parameters and thus an attempt were made to ascertain the quality of groundwater used for drinking and cooking purposes in and around Kandarvakottai and Karambakudi areas.

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