A simple extremely fast and efficient approach for the synthesis of substituted indazole ingood to excellent yield catalyzed by using silica sulfuric acid (SSA) in DMSO solvent at roomtemperature. This is solid state reaction have been attracting the synthetic organic chemist asthey provided enhance reaction rates, less environmental pollution, greater selectivity, cleanerproducts and manipulat...

environmental pollution of subsurface due to the long time required to detect the onset of infection and spent considerable time and costs, has a special sensitivity. the aim of this research was, investigating the exact type and behavior of pollutants, assesses environmental attributes and measurement of some important factors of oil contamination in soils around the refinery and how the range...

It has often been argued that opening up the economy to increased international trade can transform a less developed economy into a developed economy. There is growing concern, however, about the environmental consequences of increased international trade. Typically, different countries have different environmental regulations and it is argued that the developed countries have more stringent en...

Background: In order to protect the environment, humans are required to comply with environmental ethics, as set forth in environmental laws. Unfortunately, oil pollution has had many negative impacts on the Earth's environment in recent years, so various countries have been examining and deciding on new environmental laws over many years. Many decisions overlap with international law and have ...

BACKGROUND Housing conditions and environmental quality of residential areas are differentially distributed in the population. Less affluent population groups are more often affected by inadequate housing conditions and higher environmental burden in their residential neighbourhoods. A synthesis of the dispersed evidence on health-related housing characteristics and social status is needed to p...

in this research, in order to investigate risks land hazards involved in land use, overlay method was employed, check list method was used to assess the environmental impacts, and to determine the adverse effects and relative priority of modifications, matrix method was applied. the process includes understanding technical specifications of the proposed projects and the environment under threat...

background: the phenomenonof air pollution is a major environmental problemwhich threatens people’s health. urbanization and industrialactivities increaseair pollution, which cause cardiopulmonary diseases. the aim ofthis study was to investigate the correlation ofshiraz air pollutants with the referring patients due to the cardiopulmonarydisease in shiraz educational hospitals. methods: this i...

Ambient (outdoor) air pollution is now recognized as an important problem, both nationally and worldwide. Our scientific understanding of the spectrum of health effects of air pollution has increased, and numerous studies are finding important health effects from air pollution at levels once considered safe. Children and infants are among the most susceptible to many of the air pollutants. In a...