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Showing 1 to 12 of 12 for “"POLLUTION INDEX"”.
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Assessment of coastal aquifer contamination using geochemical and health risk assessment in Maputaland formations, South Africa
… processes were identified. The water quality index (WQI) varied from 18.9 to 157.1 with an average value of 45.55. Majority of the samples are classified as good, 22 % as poor, 2 % as very poor and 7% under unsuitable category, which are spatially distributed towards the southern and western …
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The effect of treated wastewater effluent on the water quality of the Natalspruit river
… programs. The extent of downstream water pollution was determined using the Single Factor Pollution Index (Pi), and the suitability of downstream water for reuse was determined using the Water Quality Index (WQI). The Water License Standard (WUL) was used to determine the downstream water …
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An Investigation of Heavy Metal Pollution Impact on Drinking Water Quality in the Birim River Sub-Basin of Ghana
… This study aimed to investigate heavy metal pollution in the Birim River Sub-Basin and develop a community participation module to manage the threats of heavy metal pollution the drinking water in surrounding communities. The study was based on 192 samples collected from Kibi and Akim Oda …
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Optimising characterization and remediation techniques for potentially toxic elements in polluted soils
… un nuevo indicador de contaminación (Ing.: Soil Pollution Index, SPI) y la adaptación de la teoría de datos composicionales para introducir el nuevo concepto de Enriquecimiento Relativo del Contaminante (Ing.: Relative Enrichment of the Pollutant, RE). Todo ello teniendo considerando las …
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Estimating minimum thresholds of natural vegetation for the integrated management and protection of water quality in South African catchments
… thus protecting water resources from diffuse pollution, the preservation of an adequate amount within catchment areas is important. However, among several pertinent questions, it is not clear (1) how much natural vegetation cover is required, (2) at which scale(s) this would be most effective, …
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Auxiliary Procedures for the AGNPS Model in Urban Fringe Watersheds
… fringe land uses and their nonpoint source (NPS) pollution contributions in model inputs. Auxiliary procedures for modeling with AGNPS were developed both for enhancing input into the model and for enhancing modeled output. On an event basis, one procedure automated the creation of …
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Contaminación por arsénico y metales traza en suelos inundables de Bangladesh
… Risk Factor (ERF)", "Geo accuinulation index (Igeo)", y "Metal Pollution Index (MPI)" mostraron que los suelos agrícolas de Dhamarai y Faridpur están libres de polución/contaminación por arsénico y otros metales trazas. No obstante, el factor ERF mostró que estos suelos se hallan …
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Do local government-industry linkages affect air quality? : evidence from cities in China
… between local government-industry linkages and pollution outcomes in Chinese cities over the period 2003 to 2010. For identification, I rely on the administrative rotation of city mayors, which is determined by political career considerations and retirement age cut-offs but unrelated to their …
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Groundwater geochemical characteristics and its suitability for drinking and irrigation in Ventersdrop, North West Province, South Africa
… sodium absorption ratio and permeability index were calculated for the groundwater samples in the study area. The IWQI as well as DWQI was calculated to get a snap shot of the region and it confirmed that most of groundwater samples in the study region fall between the range of suitable …
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Development of a computer-based advisory system for a selection of appropriate rehabilitation strategies for designated abandoned mine sites in Limpopo Province of South Africa
… Ni, Pb, Zn and Cu. Based on the determined mean pollution index, dispersion index and the index of landscape and visual impact of the tailing dumps in the study area it was found that rehabilitation of these mines is likely to require moderate efforts. The priority of rehabilitation of these …
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A multifarious comparative ecotoxicological approach on a catchment scale from three mine wastelands for improved environmental management and risk assessment: integrating abiotic, biotic and agroecosystem approaches
… macroinvertebrate taxa tolerant to water pollution such as Talitridae and Gnathobdellidae were observed to be dominant species. The biotic monitoring results supported the abiotic test classification with regards to stream contamination. The use of macroinvertebrate community structures …
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ΓΕΩΧΗΜΕΙΑ ΠΑΡΑΚΤΙΩΝ ΙΖΗΜΑΤΩΝ (ΠΕΡΙΟΧΕΣ ΙΘΑΚΗΣ-ΚΕΦΑΛΛΗΝΙΑΣ-ΑΣΤΑΚΟΥ)
… METAL LEVELS IN SURFACE SEDIMENTS WE USED TWO INDEXPOLLUTION A) "INDEX OF GEOACCUMULATION" AND B) POLLUTION LOAD INDEX (P.L.I.).