نشریه زیست شهر
پیاپی 1 (پاییز و زمستان 1400)

Kerman city is located in 57º to 57º 7׳ eastern longitude and 13º 14׳ to 13º 19׳ northern latitude in the dusty belt of earth. So, dusts are considered as one of the environmental problems in this city. The present study investigates the concentration, contamination level, Source, and potential ecological risk of potentially toxic elements (PTEs) in outdoors dust of Kerman city. Among the elements, Zn in outdoors of northern part and Cu in outdoors of western part of the city showed the highest concentrations. According to the geoaccumulation index (Igeo), Pb in outdoors of eastern part, Cu in outdoors of western part and Zn in outdoors of northern part of the city indicated heavy pollution.The very high enrichment coefficient is related to Cu element in outdoors of the eastern region. Also, Cu in outdoors of northern part, As in outdoors of eastern part and Zn in outdoors of the most parts of the city showed significant enrichment. Cu, Pb and Cd are elements that pose environmental risk at some regions. However, western part of the city demonstrated high environmental risk. Based on the results, the higher concentration of Pb in outdoors of eastern part of the city may be related to the population density and heavy traffic. Also, the higher values of the other elements in outdoors of western and southern parts of the city are attributed to industrial sources.

With the expansion of machine life and increasing traffic in cities and roads, in contrast to the economic and welfare process due to the expansion of communications and the speed of movement of goods and passengers, unfortunately, the number and severity of vehicle accidents increased. The loss of life and property caused by these accidents, in addition to imposing a heavy burden on the economy of human societies, the injuries of traffic accidents have also created a major problem for public health and development. In this research, the implementation of transportation safety based on safety enhancement strategies with the aim of leave to road death has been investigated. This research has been done by referring to libraries, articles, scientific and authoritative descriptive descriptors. This article acknowledged that for transportation safety, the principles of recognizing the background of road safety management system, its philosophy and mission, formulating a strategy and road safety regulations, safety planning, organizing and managing the system for execution and operations, reviewing corrective actions, reviewing management Used to reduce mortality.

Air pollution as a stressors can cause physical-behavioral, emotional and cognitive changes in a person. It may also have a direct destructive effect on a person's health, and by indirectly affecting a person's mental health, it may lead to mental satisfaction, decreased nervous function, decreased levels of mental health, and increased mental health problems. The purpose of this study is to investigate the effect of air pollution on the health of citizens in Ahvaz. This research was conducted in a field method and included areas one to four of Ahvaz city. For this purpose, a questionnaire measurement tool was used to collect information from 384 sample households, which was a multi-stage or combined sampling method. The results show that considering acute and chronic mental disorders which were more in Ahvaz region 3 than other regions, region 3 is most affected by air pollution on men and women and women are more psychologically than men. Infections are affected. Description of mental health data showed that pollution in the environment can cause symptoms of mental disorders such as physical symptoms of mental disorder, anxiety and sleep disorders, depressive symptoms and aggression in individuals and affect their social functioning.

Man-made impacts on the environment include changes in biophysical environments and ecosystems, biodiversity and natural resources that are directly or indirectly generated by humans. This research has been written by referring to libraries, articles and valid documents in a descriptive-analytical method and in addition to the importance and value of biodiversity with the aim of investigating the factors affecting habitat destruction and illegal hunting of species. In the end, it was concluded that the natural features of the land include habitats, and the extinction and fragmentation of habitats are two important threats to biodiversity. Unfortunately, large numbers of wildlife populations die each year due to hunting and fishing offenses. Knowing the components and parameters related to hunting and fishing can be effective in managing and conserving wildlife.

Today, paying attention to environmental issues in planning, activities and development measures in cities, can be an effective step to improve the environmental situation and thus improve the quality of life of citizens. Due to the economic, social, cultural and political conditions of the country, there are challenges on the country's environment that its study and identification can determine the strategy for managing and improving the quality of the country's environment. This research has been done in the field and in the library. The field method of data realization was through the Meteorological Organization, municipality, program and budget; Thus, by examining the components of the DPSIR model, the urban environmental situation of Ahvaz was investigated. Finally, it was concluded that the DPSIR framework provides an effective approach to generating data that provides the information needed to guide and advise policymakers on policy formulation. On the other hand, the environmental growth and development of cities is an issue that is being formed and pursued in many important cities of the world; Because the expansion and growth of cities, if not accompanied by the development and application of basic concepts of ecology and ecosystem approach, will eventually lead to the city becoming the only place for urbanites to spend time and no attraction for its inhabitants. It will not have.