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Application of water quality indices and analysis of the surface water quality monitoring network in semiarid North-Central Chile 总被引:4,自引:0,他引:4
Espejo L Kretschmer N Oyarzún J Meza F Núñez J Maturana H Soto G Oyarzo P Garrido M Suckel F Amezaga J Oyarzún R 《Environmental monitoring and assessment》2012,184(9):5571-5588
Surface water quality has increasing importance worldwide and is particularly relevant in the semiarid North-Central Chile, where agriculture and mining activities are imposing heavy pressure on limited water resources. The current study presents the application of a water quality index in four watersheds of the 29°-33°S realm for the period 1999-2008, based on the Canadian Council of Ministers for the Environment approach and the Chilean regulation for irrigation water quality. In addition, two modifications to the index are tested and a comprehensive characterization of the existing monitoring network is performed through cluster analysis. The basins studied show fairly good water quality in the overall, specially the Limarí basin. On the other hand, the lower index values were obtained for the headwaters of Elqui, associated with the El Indio mining district. The first modification of the indicator (i.e., to consider parameters differentially according to their effect on human health or the environment) did not produce major differences with respect to the original index, given the generally good water quality. The second modification (i.e., to consider as threshold values the more restrictive figures derived from a set of regulations) yielded important differences in the indicator values. Finally, an adequate characterization of the monitoring network was obtained. The results presented spatial coherence and the information can be used as a basis for the optimization of the monitoring network if required. 相似文献
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Solano Ricardo Patiño-Ruiz David Tejeda-Benitez Lesly Herrera Adriana 《Environmental science and pollution research international》2021,28(14):16962-16981
Environmental Science and Pollution Research - The production and demand of nanoparticles in the manufacturing sector and personal care products, release a large number of engineered nanoparticles... 相似文献
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Siegu William Mawuko Kodzo Djouonkep Lesly Dasilva Wandji Adom Elvis Kwame Muaz Abubakar Gauthier Mario Cheng Zhengzai 《Journal of Polymers and the Environment》2022,30(6):2435-2447
Journal of Polymers and the Environment - Demand for light-packaging materials for food and beverages is on the rise globally, especially in developing countries where several depend on packaged... 相似文献
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