نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشکده علوم زمین دانشگاه شهید چمران اهواز
2 عضو هیات علمی دانشگاه شهید چمران اهواز
3 دانشکده علوم زمین، دانشگاه شهید بهشتی، تهران
4 سازمان آب و برق خوزستان
5 آب منطقه ای کهکیلویه و بویراحمد
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The purpose of this research is to evaluate nitrate pollution and identify the source and components affecting the quality of groundwater resource using of hydrochemical and statistical methods, including hydrochemical composite diagrams, principal component analysis (PCA) and hierarchical cluster analysis (HCA).For this purpose 63 samples were collected from surface and groundwater resources of the region and analyzed using SPSS and XLSTAT statistical software. The results also showed that the most important sources of nitrate pollution are urban sewage and agricultural activities in the region. So that the most contamination of the samples was observed in the city of Behbahan and in the surrounding villages. The results of multivariate statistical techniques showed that the samples are in three separate groups and three main components were extracted using the PCA method, which is the most important component affecting the quality of water resources in the region related to human activities. The evaluation of different combination diagrams identified that the most important source of nitrates from urban sewage. Also, the wells depth showed that changes of nitrate at depths of less than 20 meters, are affected by urban sewage pollution, but at greater depths, the role of anthropogenic activities decreases. The evaluation of the nitrate pollution index has also shown that the highest pollution is associated with samples WB17, WB12, WB18, TM1 and R7 and is affected by anthropogenic activities. groundwater resources of the studied area.
کلیدواژهها [English]