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2 Journal of Chemistry,Timi Bega watershed Monitoring stations. Hydrographical network Sources of water pollution,Cities Romania Serbia border. Figure 1 The geographical position of the Timis Bega hydrographical basin within Romania. of Timis and Bega rivers named after the hydrotechnical The problems involving the water resources management. works constructed in the two basins These works are meant activity from Timis Bega hydrographical system consist of. to ease the better management of the water resources within the assurance of the required water demand by the vari. them interconnecting the two rivers through the Cos tei ous social economic objectives the prevention of damaging. Chiza ta u Supply Channel and Topolova t Hitias Discharge effects of the waters and the maintenance of a good environ. Channel Figure 1 mental quality, Timis River is the most important river of Banat historical The water intakes from Timis Bega hydrographical sys. region springing from the crystalline massif of Semenic tem are providing the drinkable water supply or the use. under the Piatra Goznei Peak from the approximate altitude of water for industrial purposes which can influence the. of 1135 m and it discharges on a total length of 249 km up to river hydromorphological level changing the features of the. the confluence point with the Danube located in the South natural water discharge regime on their courses. of Pancevo locality on the current territory of Serbia 9 as In Timis Bega hydrographical system the river monitor. amended The river gathers its tributaries that spring from ing activity started in the 19th century when the achievement. the Banat Mountains T arcului Mountains Poiana Rusca of drainage works of great amplitude was started in the sub. Mountains and finally the piedmont hills of Lugoj and sidence area of the Western Plain where several swamps and. Poga nis summing up a total length of the watercourses of frequent floods took place and when several hydrotechnical. approximately 462 km and a watershed surface of 5505 km2 works were performed based on studies and projects for. on the territory of Romania representing approximately which several observations and hydrological measurements. 2 31 from the total surface of Romania 238391 km2 10 where necessary. Bega River springs from Poiana Rusca Mountains under According to the Water Framework Directive of Euro. Pades Peak 1359 m from an altitude of 1150 m discharging pean Union WFD 2000 Timis Bega watershed has been. into Tisa River near Titel locality found on the current selected several watercourses well delimited in the territory. territory of Serbia where it collects its tributaries from Poiana for the operational monitoring of the surface and ground. Rusca Mountains Lipova Piedmont the pied mountainous waters and for the determination of water quality status as. and divagation field of Banat that are summing up a length of follows 14 surface water bodies found in natural status 12. 176 km and a surface of 2675 km2 on the territory of Romania surface water bodies which are heavily modified and artificial. almost 1 12 from the total surface 10 3 surface reservoirs and 8 monitored ground water bodies. Human activities in the basin of the two most important 10. rivers from Banat have a great importance for socioeconomic. life in southwestern part of Romania and in northeastern part 2 Materials and Methods. of Serbia Moreover these human activities have an important. influence in the geographical environment generally speak The water quality index WQI is a numeric expression used. ing with a particularity in what concerns the water resources to evaluate the quality of a given water body meant to be easily. their quantity and quality understood by managers from many countries 11. Journal of Chemistry 3, Table 1 Index value intervals and the corresponding quality because turbidity was not considered from sampling stations. category 17 analyzed,Value intervals Water quality status. The results have been further analyzed using current. Romanian legislation the Water Law number 107 1996 as. 90 100 Excellent, amended and supplemented the Law number 310 2004 and. 70 90 Good Order number 161 2006 approving the norms concerning. 50 70 Medium the classification of surface water quality to determine the. 25 50 Bad ecological status of water bodies which complies with WFD. 0 25 Very bad 2000 19 22, This directive has been adopted by European Parlia. ment and Council Directive 2000 60 EC on establishing a. In order to calculate the water quality index Horton framework for European Community action in the field of. proposed in 1965 the first formula which takes into account water and it contains for each parameter the limit values for. all parameters necessary for determining the quality of the corresponding chemical status of all five classes set namely. surface waters and which reflects the composite influence very good 1st grade of quality good condition 2nd grade. of different parameters important for the assessment and of quality moderate condition 3rd grade of quality poor. management of water quality 12 13 condition 4th grade of quality and bad condition 5th grade. This index was for the first time used to highlight the of quality 23. physical chemical changes that may occur during the year on Another step in calculating the values of water quality. the flowing water quality 14 15 index from each sampling sections analyzed has been the one. Most often the water quality index is used in the evalu that brings all the measurement units at the same reference. ation of surface water quality This index incorporates data scale. from multiple parameters into a mathematical equation that Determining the degree of involvement of the parameters. rates the quality of water bodies with numbers from 1 to has been accomplished in correspondence with the specific. 100 which can be separated in five classes each class with methodology which takes into account the role of each. a different quality state and with a different usage domain analyzed parameter in defining the status of the water bodies. 13 16 and of the aquatic ecosystems 12 Afterward the last step has. One of the most computation formulas used to determine been completed using an online calculator of the water quality. the water quality index can be noticed in the following index advanced by Mr Brian Oram in 2010 according to the. arithmetic expression Field Manual for Water Quality Monitoring book 12 17. The computation of the WQI for two of the most, 1 important rivers from Banat Timis and Bega has been. performed taking into account the mean annual values of. each quality parameter which were registered at the six. where is the quality parameter is the registered value monitoring stations on the Timis River Sadova Veche Potoc. and is the rank of implication of the parameter in the Lugoj Hitias S ag and Gra niceri and at the four monitoring. computation formula 12 stations on the Bega River Luncanii de Jos Balint Timis oara. Seven factors have been chosen in order to rate this index and Otelec. each of them is more important than others so weighted. mean is used to combine the values of these factors 3 Results and Discussions. The classes of the water quality status obtained according. to the quality intervals of the WQI are presented in Table 1 In order to assess the water quality of Timis and Bega. WQI scores above 80 represent stations of lowest con rivers the water quality index for a long period of time. cern that generally meet state water quality standards WQI 2004 2014 has been calculated which has been applied. scores between 40 and 80 indicate stations of marginal con also for 10 sampling sections along the Timis 6 and Bega. cern and WQI scores below 40 did not meet expectations 4 rivers taking into account the maximum annual the. and are of highest concern 18 minimum annual and the mean annual values of 7 following. In order to obtain the WQI values a selection of the physical chemical and biological parameters DO oxygen. parameters has been made according to the Global Quality saturation in percent pH in pH units BOD5 biochemical. Classes established through the norms regarding the classifi oxygen demand in mg O2 L temperature C total P total. cation of surface water quality towards to the determination phosphorus in mg P L N NO2 total nitrates in mg N L. the ecological status of the water bodies and turbidity mg L with units of measurement adapted. Thereby some of the most important parameters of according to International Union of Pure and Applied Chem. water quality index have been taken into account with the istry IUPAC. impossibility of considering two of these parameters total The average values of physical temperature and tur. coliforms and turbidity for the reason that first of all the bidity chemical pH total phosphorus and nitrates and. total coliforms parameter is monitored only in the sections biologic organic oxygen saturation and biochemical oxygen. where the water is targeted for the potable use and secondly demand parameters of water from Timis and Bega rivers. 4 Journal of Chemistry, Table 2 Water quality status and WQI values at sampling stations from the Timis River. Water quality Water sampling station,parameters Sadova Veche Potoc Lugoj. Max Min Mean Max Min Mean Max Min Mean,DO 125 9 56 1 84 5 128 57 7 85 7 163 8 54 1 98 1. pH U pH 7 9 7 1 7 5 7 9 7 2 7 6 9 6 8 7 6,BOD5 mg O2 L 3 1 2 1 9 3 1 1 1 9 5 8 1 2 2 8. Temperature C 17 3 1 7 9 17 1 9 8 6 24 5 1 5 12 9, Total P mg P L 0 075 0 032 0 050 0 106 0 026 0 052 0 298 0 028 0 106. N NO2 mg N L 0 021 0 004 0 010 0 037 0 008 0 017 0 041 0 004 0 016. Turbidity mg L 37 2 18 7 26 1 41 4 17 9 27 1 198 3 4 6 37 5. Overall WQI 79 83 86 78 84 86 58 81 83,Class II II II II II II III II II. Water quality status Good Good Good Good Good Good Medium Good Good. Water quality Marginal Marginal Marginal,Lowest concern Lowest concern Lowest concern. concern concern concern concern, Source Data processed by the Banat Water Basin Administration ABAB Archives Timis oara. Table 3 Water quality status and WQI values at sampling stations from the Timis River. Water sampling station,Water quality,parameters unit Hitias S ag Gra niceri. Max Min Mean Max Min Mean Max Min Mean,DO 130 9 40 79 1 147 7 51 2 89 3 144 7 47 4 86 7. pH U pH 7 7 6 8 7 3 7 7 7 7 4 8 7 2 7 6,BOD5 mg O2 L 10 8 1 3 4 2 4 8 1 1 2 4 6 1 6 3 7. Temperature C 23 6 2 7 12 6 23 6 2 1 12 1 23 3 3 1 12 7. Total P mg P L 0 437 0 042 0 145 0 263 0 041 0 123 0 434 0 058 0 171. N NO2 mg N L 0 078 0 009 0 030 0 042 0 007 0 021 0 046 0 006 0 021. Turbidity mg L 291 4 8 9 68 185 2 6 2 44 9 124 9 11 5 46 8. Overall WQI 66 76 79 66 81 83 62 79 81,Class III II II III II II III II II. Water quality status Medium Good Good Medium Good Good Medium Good Good. Water quality Marginal Lowest,Marginal concern Lowest concern Marginal concern. concern concern concern, Source Data processed by the Banat Water Basin Administration ABAB Archives Timis oara. and the results of water quality data analysis are presented in Hitias S ag and Gra niceri fitting them into the marginal. Tables 2 3 4 and 5 concern category Table 3, At Sadova Veche and Potoc monitoring stations located The values of the water quality index from these stations. on the upper course of Timis River the water quality status correspond to the moderate class which are influenced by. is good 70 90 according to the average maximum and the nutrients respectively by the high values of the nitrates. minimum annual values of the analyzed parameters during from Timis river water as a result of the agricultural practices. the period under review 2004 2014 which make these municipal and industrial wastewaters manure from farms. sampling stations fall into the lowest concern category and so on. Table 2 The water quality of the Timis River is influenced by. Downstream on the Timis River beginning with Lugoj many factors including the quantitative variation of biogenic. monitoring section until the border between Romania and and organic substances All biogenic elements within the. Serbia the water quality is preserved in good condition water bodies are the result of the decomposition process of. according to the mean and minimum annual values Only the the organic substances therefore the regime of the biogenic. maximum annual values decreased which cause the medium elements depends directly on the vital activity of the organ. status of water quality 50 70 at all other sections Lugoj isms from the rivers Moreover this river is characterized. Journal of Chemistry 5, Table 4 Water quality status and WQI values at sampling stations from the Bega River. Water sampling station, Water quality parameters unit Luncanii de Jos Balint. Max Min Mean Max Min Mean,DO 146 3 60 6 97 6 154 1 48 3 89 1. pH U pH 8 3 7 6 8 8 1 7 2 7 7,BOD5 mg O2 L 3 7 0 8 2 6 1 1 5 3 4. Temperature C 19 8 2 2 10 23 1 7 11 4, Total P mg P L 0 242 0 032 0 099 0 381 0 037 0 128. N NO2 mg N L 0 015 0 002 0 007 0 041 0 006 0 017,Turbidity mg L 54 9 4 4 18 8 232 4 5 2 55 5. Overall WQI 66 84 85 61 80 82,Class III II II III II II. Water quality status Medium Good Medium Good, Water quality concern Marginal concern Lowest concern Marginal concern Lowest concern. Source Data processed by the Banat Water Basin Administration ABAB Archives Timis oara. Table 5 Water quality status and WQI values at sampling stations from the Bega River. Water sampling station,Water quality parameters unit Timis oara Otelec. Max Min Mean Max Min Mean,DO 148 9 44 9 85 6 136 9 23 8 61 9. pH U pH 7 8 7 7 4 7 7 6 9 7 3,BOD5 mg O2 L 3 8 0 8 1 8 10 3 3 2 5 7. Temperature C 23 9 1 4 12 2 24 7 1 5 13 1, Total P mg P L 0 395 0 026 0 117 0 881 0 161 0 418. N NO2 mg N L 0 041 0 004 0 013 0 268 0 011 0 056,Turbidity mg L 132 1 5 7 30 1 134 8 5 2 28 9. Overall WQI 65 80 84 64 69 68,Class III II II III III III. Water quality status Med Good Medium, Water quality concern Marginal concern Lowest concern Marginal concern. Source Data processed by the Banat Water Basin Administration ABAB Archives Timis oara. by the presence of several impurities in natural state with values of the water quality index 50 70 medium state. a composition which depends on the types of soils from so the water quality of Bega River has a moderate status at. the reception basin waste water spills from different kind the exit of our country weaker compared with Timis River. of users and the dissolving capacity of the gases in the which causes Gra niceri station to have a marginal concern. atmosphere 24 25 regarding water quality, Within the water of unpolluted rivers the concentration Water quality of the most important rivers from Timis. of nitrates often oscillates between the limits of a few tenths Bega hydrographical basin is a result of human activity and. of mg l The main cause for the loading of the flowing waters demographic characteristics on one side and urbanization. with nitrates consists in the eviction of the urban waste waters and industrialization on the other side Discharging of. 26 This is the reason why the content in N NO2 of the untreated waste waters from industry households and pol. river water is almost double at Lugoj station and the reason lution from agriculture sewage water from rural localities. why the water quality is changing from good to a moderate from animal farms and from industry are the main causes of. status according to the maximum annual values pollution on surface water resources and groundwater in this. Generally the best water quality status from Bega River region 27 28. concerning average and minimum annual is centralized in The human stress on the surface water within Timis and. the sections from the upper course which falls into the Bega catchments is induced by the total number of inhab. lowest concern category Tables 4 and 5 itants almost 700000 people and the urban inhabitants. Downstream from Timis oara until the Romanian Serbian 428168 people by National Institute of Statistics INS from. border the water quality status is deteriorated according to Romania 2011 from cities like Timis oara Lugoj Buzias. the average annual maximum annual and minimum annual Fa get Recas Ciacova Caransebes and Ot elu Ros u by the. 6 Journal of Chemistry, organic loading that they generate through the industrial bad chemical status ANPM Timis Environment Protection. activities land use and animal husbandry in animal farming Agency Timis oara. complexes and finally through the degree of improvement of Regarding the surface water courses that are heavily. the hydrographical network as a result of human activity modified rivers which exist within this basin it has been. At the monitoring sections situated downstream of the found that most of the water courses have had a moderate. wastewater discharge high values of nitrogen compounds ecological potential the difference being represented by the. have been identified more exactly of the nitrate nitrite water courses that have had a good ecological potential and. and ammonium ions which influence the quality of the from a chemical status point of view more than half had. watercourses especially Timis and Bega that flow into the a good chemical status and less than half have had a bad. Tisa River and Danube River on the territory of Serbia ecological status. The waters of Timis River and Bega River at the exit Also in the same period the evaluation of the ecological. from Romania country are much polluted because the rivers potential of the three surface reservoirs existing within the. quality state suffers a slight depreciations downstream thanks basin analyzed has revealed the fact that all these have had a. to effects of the urban sewage of the urban wastewaters of the moderate ecological potential and that all have been found in. agricultural wastes and of the natural causes such as erosion a good chemical status. in the hydrographical basins of these main rivers from Banat However the evolution trend within the last few years. 29 of the pollutant concentrations recorded at the monitoring. Water pollution by nitrates reaches high levels due to the stations on the basin rivers has had a significant decrease. introduction of intensive farming methods with increased due to the measures introduced by the national and European. use of chemical fertilizers and higher concentrations of ani legislation referring especially to the treatment of the urban. mals in smaller areas especially in animal farming complexes waste waters and to the reduction of the pollution with. from the Timis Bega hydrographical basin In this basin the nitrogen and phosphorous from the agricultural practices. values of these parameters vary from one monitoring station In the analyzed period the limited excess on the water. to another due to the hydrological regime of the surface quality according to the Law 311 2004 was due to the. water but also to the origin and the behavior of the physical zootechnical complexes Recas Peciu Nou Pa dureni Part a. chemical and biological parameters Ciacova Voiteni etc some of them owned by COMTIM. currently S C Smithfield Ferme S R L within the Timis. The anthropogenic factor has an important role in the. Bega hydrographical basin as well as to the spray irrigation of. formation and the influence of leakage water processes on. the fields with phenolic waters from S C Solventul S A from. the rivers of this hydrographical system Starting from 1716. Margina which at the moment although it has suspended its. and up to the present it has mostly influenced the water. activity continues to influence the quality of ground waters. discharge by achieving several types of hydraulic structures. from this region, among which the most important are the regulation of. Another source which influences quite a lot the surface. maximum discharges on the main rivers and the most. and underground waters quality from this hydrographical. important tributaries the performance of flood mitigation. area is Waste Deposit Part a which does not have environ. works and river bed regulation damming works on the most. ment factor protection equipment 29, important rivers and tributaries within the proximity of the. most important localities 30 31, More than that in Timis Bega hydrographical basin 4 Conclusions. several significant water intakes and two secondary intakes The results of this paper present the water polluting and. Slatina and Borlova have been identified The most impor quality assessment of two transboundary rivers Timis and. tant units that require large amounts of water within the Bega from two different hydrographical basins and show that. basin are S C Aquacaras S A from Caransebes and Ot elu WQI values of the Timis River ranging from 86 to 58 and. Ros u S C Meridian 22 S A from Lugoj S C Aquatim S A WQI values of the Bega River ranging from 85 to 61 denote. from Timis oara and the National Administration for Land degradation of water quality downstream of the rivers. Improvement from Romania ANIF Water quality in the upstream sections of the Timis and. The company which represents the main economic actor Bega has been in a better condition than the downstream river. in the water supply field from the Timis Bega hydrographical sections There have been significant deterioration in values. basin is S C Aquatim S A This company operates with public of the most important water quality parameters DO pH. water and wastewater services for Timis oara Municipality BOD5 temperature total P N 2 and slurry downstream. and many other localities 32 of the rivers which indicates that the local pollutants may be. During the analyzed period 2004 2014 the evaluation of contributing incrementally to the degradation of river quality. the ecological status of surface water courses rivers existing The given WQI values control sections of the studied area. within Timis Bega hydrographical system has revealed the are distributed on quality classes as follows 90 in the 2nd. fact that the most rivers have been found in good ecological class of quality good and 10 in the 3rd class of quality. status medium taking into account the mean annual values 20. Concerning the evaluation of the chemical status one in the 2nd class of quality good and 80 in the 3rd class of. could notice that most rivers have been found in good chemi quality medium taking into account the maximum annual. cal status and only some of them have been characterized by a 90 in the 2nd class of quality good and 10 in the 3rd. Journal of Chemistry 7, class of quality medium taking into account the minimum Journal of Earth and Environmental Sciences vol 7 no 2 pp. annual values 255 264 2012, The trend in the water quality index is determined by the 6 A Milanovic M Uros ev and D Milijas evic Use of the RHS. economic activities in the agriculture industrial and resi method in Golijska Moravica river basin Bulletin of the Serbian. dential areas in the sampling stations vicinity in the Timis Geographical Society vol 86 no 2 pp 53 61 2006. Bega hydrographical basin For these reasons a constant 7 A Milanovic D Milijas evic and J Brankov Assessment of. monitoring is necessary in order to ensure water quality polluting effects and surface water quality using water pollution. of Timis and Bega rivers at the optimum level according index a case study of hydro system Danube Tisa Danube Ser. to the Water Framework Directive 2000 60 EC especially bia Carpathian Journal of Earth and Environmental Sciences. because these rivers flow further through the territory of vol 6 no 2 pp 269 277 2011. Serbia where they are discharging into Tisa and Danube 8 M Paiu and I G Breaba n Water quality index an. rivers instrument for water resources management in Air and. This article focuses on water resources management and Water Components of the Environment Conference G Pandi. shows the need to enforce the existing international bilateral and F Moldovan Eds pp 391 398 Presa Universitara Clujeana. Press Cluj Napoca Romania, agreements and to implement this European directive in. order to improve the water quantity and quality received by 9 R Munteanu Hydrographical Basin of Timis River Hydrologi. cal Study Mirton Publishing Timis oara Romania 1998. the downstream country of a shared watershed like Timis. Bega hydrographical basin shared by two countries Romania. EU country and Serbia non EU country 10 A M Arba Water Resources from the Timis Bega Hydrographi. cal System Genesis Hydrological Regime and Hydrological Risks. According to the Water Framework Directive require. West University of Timis oara Publishing Timis oara Romania. ments knowledge of anthropogenic pressure formed on 2016 Romanian. water resources is highly imperative in order to identify. 11 O Ionus Water quality index assessment method of the. the quality of water bodies and ultimately for adopting. Motru River water quality Oltenia Romania Annals of the. appropriate measures to protect and conserve the water in University of Craiova Series Geography vol 13 pp 74 83 2010. this region of Romania which have so many transboundary. 12 S M Liou S L Lo and S H Wang A generalized water qual. ity index for Taiwan Environmental Modeling Assessment. In order to protect the environment in general and vol 96 no 1 3 pp 35 52 2004. preserve a good water quality in particularly especially of the. 13 S Tyagi B Sharma P Singh and R Dobhal Water quality. transboundary rivers from Banat shared by two countries. assessment in terms of water quality index American Journal. and by so many communities it is necessary to implement an of Water Resources vol 1 no 3 pp 34 38 2013. adequate wastewater management through the construction. 14 M A House and J B Ellis The development of water. of modern and efficient waste water treatment plants quality indices for operational management Water Science and. Technology vol 19 no 9 pp 145 154 1987, Conflicts of Interest 15 M A House Water quality indices as indicators of ecosystem. change Environmental Modeling Assessment vol 15 no 3. The author declares that he has no conflicts of interest pp 255 263 1990. 16 A A Bordalo R W Teixeira and W J Wiebe A water quality. index applied to an international shared river basin the case of. References the Douro River Journal of Environmental Management vol. 1 S Venkatramanan S Y Chung S Y Lee and N Park 38 no 6 pp 910 920 2006. Assessment of river water quality via environmentric multi 17 B Oram Water Quality Index Calculator According to the book. variate statistical tools and water quality index A case study of Field Manual for Water Quality Monitoring 2010 http www. Nakdong River Basin Korea Carpathian Journal of Earth and water research net index php water treatment water monitoring. Environmental Sciences vol 9 no 2 pp 125 132 2014 monitoring the quality of surfacewaters. 2 P Mandal R Upadhyay and A Hasan Seasonal and spatial 18 D Hallock A Water Quality Index for Ecology s Stream Mon. variation of Yamuna River water quality in Delhi India itoring Program Washington State Department of Ecology. Environmental Modeling Assessment vol 170 no 1 4 pp 661 Olympia Wash USA 2002. 670 2010 19 The Water Law 107 of 25 September 1996 Official Monitor of. 3 L Ferencz and A Balog A Pesticide survey in soil water and Romania no 244 of 08 10 1996. foodstuffs from Central Romania Carpathian Journal of Earth 20 The Law 310 of 30 June 2004 amending and supplementing The. and Environmental Sciences vol 5 no 1 pp 111 118 2010 Water Law no 107 1996 Official Monitor of Romania no 584. 4 L Pa rvulescu and C Hamchevici The relation between water of 30 06 2004. quality and the distribution of Gammarus balcanicus scha ferna 21 The Law 311 of 28 June 2004 amending and supplementing. 1922 Amphipoda Gammaridae in the Anina mountains Law no 458 2002 on drinking water quality Official Monitor. Carpathian Journal of Earth and Environmental Sciences vol 5 of Romania 1st part no 582 of 30 06 2004. no 2 pp 161 168 2010 22 The Order no 161 of 16 February 2006 approving the Norms. 5 M Pantelic D Dragan S Savic V Stojanovic and I Na concerning the classification of surface water quality to deter. Statistical analysis of water quality parameters of Veliki Bac ki mine the ecological status of water bodies the Ministry of. canal Vojvodina Serbia in the period 2000 2009 Carpathian Environment and Water Official Monitor no 511 of 13 06 2006. 8 Journal of Chemistry, 23 Water Framework Directive 2000 60 EC Official Journal of. the European Community vol L327 pp 1 73 2000, 24 V Trufas and C Trufas Hydrochemistry University of. Bucharest Press Bucharest Romania 1975 Romanian, 25 L Oprean E Lengyel and R Iancu Monitoring and evalua. tion of Timis River Banat Romania water quality based on. physicochemical and microbiological analysis Transylvanian. Review of Systematical and Ecological Research vol 15 no 3 pp. 33 42 2013, 26 L S muleac S Oncia A Ienciu and R Bertici Quality indices. of the water in the middle Timis River basin Annals of the. University of Oradea Environmental Protection Fascicle vol 21. pp 757 764 2013, 27 A Ienciu S Oncia L S muleac P Fazakas and C A Nicolici. The quality of the Timis River Waters Research Journal of. Agricultural Science vol 45 no 2 pp 146 151 2013, 28 A Balint G C rciu E Alexa and A Cozma Monitoring of. nitrogen compound long ways Timis River basin Journal of. Horticulture Forestry and Biotechnology vol 18 no 1 pp 144. 29 I Both I Borza L Copa cean and P Merghes The impact of. the antropic activities on the water quality of the rivers Timis. and Bega in the inferior sector Research Journal of Agricultural. Science vol 46 no 2 pp 38 45 2014, 30 A M Dunca Chronological study of the water resources man. agement within the Banat historical region 1716 2016 Review. of Historical Geography and Toponomastics West University of. Timis oara Press Timis oara vol 12 pp 83 94 2017, 31 A M Dunca The history of hydraulic structures realized. in Banat hydrographical area Romania Transactions on. Hydrotechnics Scientific Bulletin of Politehnica University of. Timis oara vol 61 no 75 1 pp 53 60 2017, 32 B Mitrica and I Mocanu Drinking water supply and con. sumption territorial disparities in the Timis Plain Annals of the. University of Oradea Geography Series vol 21 no 2 pp 239. Nanomaterial,Nanomaterials,Journal of,Journal of,The Scientific. Photoenergy,International Journal of,Analytical Methods Journal of. in Chemistry,World Journal,Hindawi Publishing Corporation. Applied Chemistry,Hindawi Hindawi, www hindawi com Volume 2018 www hindawi com Volume 2018 http www hindawi com. www hindawi com Volume 2018, 2013 www hindawi com Volume 2018 www hindawi com Volume 2018. Advances in International Journal of,Physical Chemistry. Medicinal Chemistry, www hindawi com Volume 2018 www hindawi com Volume 2018. Submit your manuscripts at,www hindawi com,Bioinorganic Chemistry Journal of. and Applications, www hindawi com Volume 2018 www hindawi com Volume 2018. Advances in Journal of BioMed International Journal of International Journal of. Research International,Spectroscopy,Electrochemistry. www hindawi com Volume 2018 www hindawi com Volume 2018 www hindawi com Volume 2018 www hindawi com Volume 2018 www hindawi com Volume 2018. International Journal of Journal of Journal of Enzyme Biochemistry. Analytical Chemistry,Spectroscopy,Nanotechnology,Research International. www hindawi com Volume 2018 www hindawi com Volume 2018 www hindawi com Volume 2018 www hindawi com Volume 2018 www hindawi com Volume 2018.
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6 Installation Manual v2.2 Valid for eSIM264 with firmware v7.11.18 and up Safety instructions Please read and follow these safety guidelines in order to maintain safety of operators and people around:
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