+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Environmetric data interpretation to assess the water quality of Maritsa River catchment

, : Environmetric data interpretation to assess the water quality of Maritsa River catchment. Journal of Environmental Science and Health. Part A, Toxic/Hazardous Substances & Environmental Engineering 48(8): 963-972

Maritsa River is one of the largest rivers flowing on Bulgarian territory. The quality of its waters is of substantial importance for irrigation, industrial, recreation and domestic use. Besides, part of the river is flowing on Turkish territory and the control and management of the Maritsa catchment is of mutual interst for the neighboring countires. Thus, performing interpretation and modeling of the river water quality is a major environmetric problem. Two multivariate statstical methods (Cluster analysis/CA/and Principal components analysis/PCA/) were applied for model assessment of the water quality of Maritsa River on Bulgarian territory. The study used long-term monitoring data from 21 sampling sites characterized by 8 surface water quality indicators. The application of CA to the indicators results in 3 significant clusters showing the impact of biological, anthropogenic and eutrophication sources. For further assessment of the monitoring data, PCA was implemented, which identified, again,three latent factors confirming, in principle, the clustering output. The latent factors were conditionally named "biologic", "anthropogenic" and "eutrophication" source. Their identification coinside correctly to the location of real pollution sources along the Maritsa River catchment. The linkage of the sampling sites along the river flow by CA identified four special patterns separated by specific tracers levels: biological and anthropogenic major impact for pattern 1, euthrophication major impact for pattern 2, background levels for pattern 3 and eutrophication and agricultural major impact for pattern 4. The apportionment models of the pollution determined the contribution of each one of identified pollution factors to the total concentration of each one of the water quality parameters. Thus, a better risk management of the surface water quality is achieved both on local and national level.


PMID: 23485248

DOI: 10.1080/10934529.2013.762743

Other references

Thomas, R.; Gonzalez, R., 2016: Which antidotes are available for the novel oral anticoagulants?. Use of novel (or target-specific) oral anticoagulants continues to increase. This article reviews idarucizumab and andexanet alfa, two antidotes that can be used to reverse anticoagulation in patients needing emergency surgery or with life-threate...

Amdrup, E.; Jensen, H.E., 1970: Operative technic in selective vagotomy of the gastric parietal cell mass for duodenal ulcer. Nordisk Medicin 83(20): 621-624

Enlow, D., 1974: Growth and architecture of the face. Pedodontie Francaise 6(0): 122-144

Trusheim F., 1937: Wurzelboeden im Plattensandstein Mainfrankens. A bed of conifer roots in the Plattensandstein (Triassic) of Franconia, Germany.

Engelbrecht, G., 1998: Green Valley Ranch dam, Chipinge. Honeyguide ember; 44(4): 239

Anonymous, 1996: Danisco's sugar factory at Anklam. When Danisco acquired 8 old East German sugar factories, their energy consumption per unit of sugar produced was twice, and the man-hours 10 times, that in a Danish sugar factory. Three of the 8 were immediately shut down and investment was concen...

Lazorthes F., 1970: Surgical arterio venous fistulas and hemo dialysis. Revue de Medecine de Toulouse 6(SUPPL 9): 1348

Barberger-Gateau, P.; Nejjari, C.; Tessier, J.F.; Dartigues, J.F., 1995: Assessment of disability and handicap associated with dyspnoea in elderly subjects. In a sample of 2792 community dwellers, aged 65 and over, randomly selected in an administrative area of southwestern France, eight items of the functional assessment scales had an independent association with dyspnoea, adjusting for age, visual o...

Cingolani, L.A.; Thalhammer, A.; Yu, L.M.Y.; Catalano, M.; Ramos, T.; Colicos, M.A.; Goda, Y., 2008: Activity-dependent regulation of synaptic AMPA receptor composition and abundance by beta3 integrins. At synapses, cell adhesion molecules (CAMs) provide the molecular framework for coordinating signaling events across the synaptic cleft. Among synaptic CAMs, the integrins, receptors for extracellular matrix proteins and counterreceptors on adjac...

Kaminska, A., 2004: Chirurgie de l'epilepsie chez l'enfant: criteres d'eligibilite. Revue de la litterature. We reviewed current literature about eligibility criteria for epilepsy surgery in children. Surgical treatment of epilepsy in childhood is increasing due to major advances in structural and functional imaging as well as EEG monitoring and surgical...