The study was conducted in order to assess the spatiotemporal variations of selected water quality parameters, impact analysis, and trophic status on the Edremit shores of Lake Van. Water samples were collected from 10 representative sampling stations taken from the influent, effluent, and from Lake Van itself in order to analyze the physicochemical parameters in both dry and wet seasons. The trophic status of the lake was determined using Carlson trophic state index. Impact analysis was conducted based on the method most commonly used in management strategies related to surface waters in Turkey. The results of the study show that five factors obtained from principal component indicated that the parameters responsible for water quality changes were mostly related to salts and soda, physicochemical parameters, point and diffuse pollutions discharge, and other organic pollutants. In the impact analysis pH, COD (chemical oxygen demand), BOD (biological oxygen demand), and TP (total phosphorus) (except for EC (electrical conductivity)) parameters were found to have medium impact, while DO (dissolved oxygen) and TN (total nitrogen) parameters had no impact. The pH, EC, SO₄⁻², Cl⁻, TP, COD, and BOD values measured at 10 sampling stations were considered to be Class IV according to national regulations. The final trophic status of lake, according to the Carlson trophic index, was assessed to be eutrophic. Understanding this variation is important so as to develop new ways to resolve issues of sustainable water management. In addition, it is considered essential to prepare guidelines for the trophic status of Lake Van.

进行这项研究是为了评估Van Lake埃德雷米特海岸所选水质参数的时空变化，影响分析和营养状况。从10个有代表性的采样站收集了水样本，这些采样站分别取自进水，出水和范湖（Lake Van）本身，以分析干旱和潮湿季节的理化参数。该湖的营养状态是使用卡尔森营养状态指数确定的。影响分析是根据土耳其地表水相关管理策略中最常用的方法进行的。研究结果表明，从主要成分中获得的五个因素表明，造成水质变化的参数主要与盐和苏打水，理化参数，点和弥散性污染物排放有关，和其他有机污染物。在影响分析中，发现pH，COD（化学需氧量），BOD（生物需氧量）和TP（总磷）（EC（电导率除外））参数具有中等影响，而DO（溶解氧）和TN（总氮）参数没有影响。pH，EC，SO₄ ^-2，氯^- ，在10个采样站测量TP，COD，和BOD值被认为是根据国家规定为IV类。根据卡尔森营养指数，湖泊的最终营养状态被认为是富营养的。理解这种变化很重要，以便开发解决可持续水管理问题的新方法。另外，为范克湖的营养状况制定指导方针被认为是必不可少的。