Physical urban growth has the most significant impact on the vegetation of surrounding areas; the assessment and analysis of these changes are essential in geography and use different mechanisms. Here, remote sensing is the main technology for assessing expansion and the rate of change of land cover. Accordingly, the present study has been conducted with […]
Urmia Lake is the largest inland wetland in Iran, which is shrinking. The gradual drying of Lake Urmia has been a national and international issue for several years. In recent decades, climate change, dam constrictions, unsustainable industrial development and excess exploitation of groundwater for agriculture have been the main cause of drying of Lake Urmia. […]
present study is an experimental-laboratory study which the data collection is based on the collected data of field and documentation studies. this research, the quality process of Kan River’s resources based on the examined results of qualitative parameters will be analyzed in details. For this purpose, first of all, the results of the analysis of […]
Ecological and phytocenological assessments of 3 populations of Thymus caucasicus L. species were carried out in Ardabil. Classification of Th.caucasicus phytocenose on ecological groups were developed for the first time. In the result, the associations and their floristic composition and ecology were identified. Age, efficiency, aging indexes were appointed during cenological assessments of the Th.caucasicus […]
the study aimed to validate the proposed model for environmental policy in the country to decrease environmental pollution in form of a network approach. This descriptive-analytical and cross-sectional study was carried out through survey approach. The statistical population of the study consisted of experts and policy makers in the field of environment who had environmental […]
The noise pollution produced by various aircraft systems, including hydraulic, pneumatic, electrical systems and auxiliary aircraft equipment inside the aircraft hangars, generally cause hearing impairment and mental disorder of shift and office personnel. Identifying hangar noise pollutants can lead to find solutions and methods to deal with the contaminants in the aviation industry. In the […]
Abstract: Hazardous waste is generated by numerous industrial, commercial, agricultural and even domestic sources. The dangers of these wastes can vary depending on their types and environmental conditions and various short-term and long-term effects ranging from acute to chronic are expected. This study was carried out in regard to health and economic considerations and to […]
The aim of this study is to evaluate the impact of environmental education on environmental change, environmental behavior of school students and elementary schools. The study conducted in Tehran. It is a cross-sectional study and to achieve the aim of the study a questionnaire consisting of 15 questions printed out. This is based on knowledge, […]
Chitosan is one of the natural biopolymer. Despite its importance, the characterization and extraction processes of this essential biopolymer are yet enigmatic. In this study, we developed an analytical procedure for the extraction of chitin and chitosan from the aquatic beetles’ shells (Hydraenidae family). The commercial chitosan and isolated chitosan, obtained during our experiment were […]
Introduction & Discussion: Increasing knowledge about important factors of groundwater pollution caused due to anthropogenic activities i.e. human actions demands an understanding of the reality. Method: Hence, in this study, the researchers used factor analysis or principal component analysis to identify significant anthropogenic factors affecting the groundwater quality in two districts of West Bengal. Survey […]
