Version 1
: Received: 24 January 2019 / Approved: 25 January 2019 / Online: 25 January 2019 (15:03:46 CET)
How to cite:
Simonyan, G.; Pirumyan, G. Entropy - System Approach to Assess the Ecological Status of Reservoirs in Armenia. Preprints2019, 2019010260. https://doi.org/10.20944/preprints201901.0260.v1
Simonyan, G.; Pirumyan, G. Entropy - System Approach to Assess the Ecological Status of Reservoirs in Armenia. Preprints 2019, 2019010260. https://doi.org/10.20944/preprints201901.0260.v1
Simonyan, G.; Pirumyan, G. Entropy - System Approach to Assess the Ecological Status of Reservoirs in Armenia. Preprints2019, 2019010260. https://doi.org/10.20944/preprints201901.0260.v1
APA Style
Simonyan, G., & Pirumyan, G. (2019). Entropy - System Approach to Assess the Ecological Status of Reservoirs in Armenia. Preprints. https://doi.org/10.20944/preprints201901.0260.v1
Chicago/Turabian Style
Simonyan, G. and Gevorg Pirumyan. 2019 "Entropy - System Approach to Assess the Ecological Status of Reservoirs in Armenia" Preprints. https://doi.org/10.20944/preprints201901.0260.v1
Abstract
In this article, the quality of water in the reservoirs of Lake Arpi, Lake Yerevan, Akhuryan, Azat, Aparan and Kechut was estimated with usage of the Armenian Water Quality Index. It was established that in the waters of reservoirs the the maximum permissible concentration of copper, vanadium, aluminum, chromium, manganese, iron, NH4+ and NO2- regularly increases. The following computational algorithm was used for determination of the Armenian Water Quality Index values: to determine the number of cases of MPC excess of i-substance or indicator of water –n; to estimate the total amount of cases of the maximum permissible concentration (N) – N = ∑n; to computes log2N, nlog2n and ∑nlog2n; to determine geoecological syntropy (I) and entropy (H): I = ∑ nlog2n/N and H = log2N – I. Then, Geo-Ecological Evolving Organized index index was determined: G = H/I. Further, the total amount multiplicity of MAC exceedances was estimated: (M) - M=∑m and log2M was computed. Finally, Armenian Water Quality Index was obtained: AWQI = G + 0.1log2M. It was established that the Armenian Water Qquality Index showed a linear dependence on the Water Contamination Index, the Specific Combinatory Water Quality Index, the Geo-Ecological Evolving Organized index and an inverse dependence on the Canadian Water Quality Index.
Keywords
reservoir; water quality indexes; GEVORG index; Armenian Water Quality Index; Armenia
Subject
Environmental and Earth Sciences, Environmental Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
