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Identification of Water Quality in Wet and Intermediate Zones in Selected, Sri Lanca: An Analytical Review

100%

Fowzul Ameer M. L.

World News of Natural Sciences

2018

tom 19

19-31

This study is based on the analysis of drinking water parameters in selected wet and intermediate zones of Sri Lanka. Unsafe drinking water is one of the main concerns in developing countries. In Sri Lanka, the drinking water quality is a major concern in many places. A series of studies have been conducted in intensive agricultural production areas, namely, Jaffna, Vavuniya, Anuradhapura, Kurunagala and Hambantota. This represents a longitudinal section of Sri Lanka, and the study was done to understand the groundwater quality over the years of 2004 to 2009. Water from selected areas were sampled throughout the villages of this area mostly from open wells and tube wells. The samples were analysed for their chemical quality in order to identify water quality as compared with the Sri Lankan Drinking water standard. For this study, Sodium (Na+), Calcium (Ca2+), Magnesium (Mg2+), Chloride (Clˉ), Sulphate (SO42ˉ) and Nitrate (NO3ˉ) were analysed. Accordingly, in the Dry Zone, the concentration of the Ca, Mg and Cl are higher than in the Wet Zones. Indeed, some sampling wells in the Dry Zones have extreme concentration of Ca (more than 1000 mg/l) and this is a major threat to the consumers for drinking purposes. In total, of 103 wells, 6 percent of the sampling wells were identified as contaminated, whereas in total, of 96 wells in the Dry Zone, 64 percent of the sampling wells were found to be contaminated due to chemical concentration. We found that rural areas are facing agrochemical-leaching problems into the groundwater, whereas urban areas are facing industrial and biological materials seeping into the ground and surface water bodies.

Economic analysis and pattern of agrochemicals use among smallholder crop farmers in Edu Local Government Area of Kwara State

63%

Olayinka A. S. , Lawal A. F. , Bwala M. A. , Mohammed U. H. , Sulaiman A. I.

Journal of Agribusiness and Rural Development

2019

nr 2[52]

Agrochemicals applicable in phytoextraction combined with plants biomass production

63%

Pszczolkowski W. , Romanowska-Duda Z. , Grzesik M. , Pszczolkowska A.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

2013

tom 94

nr 3

Capillary electrophoresis in analysis of agrochemicals

63%

Kluczyk A.

Pestycydy

2004

nr 3-4

Formulation and evaluation of agrochemicals of Sclerotium rolfsii FGCC # 02 against Parthenium hysteropharus

51%

Shukla R. , Pandey A. K.

Journal of Plant Protection Research

2008

tom 48

nr 4

487-494

Herbicidal potential of CFCF (Cell free culture filtrate) of Sclerotium rolfsii against Parthenium hysterophorus was determined by shoot cut, seedling and detached leaf bioassays. Maximum phytotoxicity was obtained from 14 day's old fermented broth with sucrose + 0.5% Tween 20 as formulating agent. Significant reduction in chlorophyll and protein contents of host was also noticed.

Potencjał herbicydowy bezkomórkowych wyciągów z kultur Sclerotium rolfsii FGCC#2 przeciwko Parthenium hysterophorus L. określano wykonując biotesty na roślinach oraz na odciętych liściach. Maksymalną fitotoksyczność tych wyciągów obserwowano w przypadku 14-dniowej kultury w pożywce płynnej wzbogaconej preparatem Tween 20 + sacharoza (0,5%). Stwierdzono także istotne ograniczenie zawartości chlorofilu i białka w roślinie żywicielskiej.