In recent years, global water pollution has been largely attributed to anthropogenic activities such as mining, agriculture, industrial activities and domestic effluent. In the case of Mazai and Matsheumhlope streams in Bulawayo, Zimbabwe, manufacturing industries in the surrounding areas are known to discharge partially treated effluent into the two streams. These two streams are tributaries to Umguza River, which is used by local communities for irrigation and domestic purposes. Pollutants carried by these two streams negatively affect the quality of the streams causing a deterioration in the health of Umguza River and Dam. This study aimed at investigating anthropogenic sources of pollution along the two streams. Water samples were collected from May 2016 to April 2017 and tested for permanganate value, chemical oxygen demand, nitrates, ammonia, phosphates, electrical conductivity, pH, total dissolved solids and suspended solids. The results were compared to EMA SI 6 Regulations on Effluent and Solid Waste Disposal. Results were divided into the wet and dry season. The physico-chemical parameters of the two streams were analysed for Analysis of Variance. The results showed that the streams had no significant influence on all the parameters except for pH (p<0.05). The seasons had a significant influence on the levels of ammonia, suspended solids, nitrates and pH. A GIS application QGIS, was used to generate maps using the selected parameters to display levels of pollution. The results showed that the industrial and sewage effluent significantly affect the water quality of the two streams. The study recommends that pollution hotspots indicated by the study be further investigated and given more attention to curb the release of pollutants in the two streams.

Assessment of anthropogenic sources of pollution along Mazai and Matsheumhlope streams in Bulawayo, Zimbabwe using GIS and Remote Sensing tools

English

Urban streams

 anthropogenic activities

 pollution

 GIS

The number of hospitals in Turkey is increasing day by day. This increase has also led to an increase in waste load. Increasing waste load led to the initiation of waste management practices related to this issue in hospitals. The arrangements were made regarding medical waste management in Turkey for the first time in 1993. These regulations have been amended in accordance with the 2005 EU Environmental Directives. Both in Turkey and in the world, it can be said that the revised format of the medical waste management, depending on the technology. In this study, by considering the intended medical waste management in Turkey will focus on the potential harm to the environment. In addition, ashes remaining as a result of incineration should be evaluated in terms of environment. Therefore, the disposal of these ashes is also mentioned.

A Review on The Combustion Systems in Medical Waste Management and Its Environmental Effects in Turkey

Medical Waste

 waste managment

 environmental effects

Medical wastes are wastes released during healthcare. The institutions with the highest medical waste generation are hospitals. However, medical wastes are generated at many points, such as health cabins, pharmacies and infirmary facilities that employ more than 50 workers. Although 75-90% of these wastes fall under the general waste category, the rest fall into hazardous waste. Medical wastes are beginning to form in large volumes today due to the developing technology, increasing welfare level and widespread health services. Especially, the increase in the use of disposable devices and consumables used to provide hygiene are the most important factors that increase the formation of medical waste. In addition to being infected, medical wastes contain hazardous chemicals, drugs, toxins, radioactive substances, etc. Medical wastes are in hazardous / risky waste group that threatens human and environmental health. The separation, temporary storage, transportation and disposal of medical wastes in hospitals is critical for the environment and human health. In this study, investigation of waste incineration processes, one of the methods of disposal of medical wastes threatening the environment and human health, and examination of emissions released after incineration will be carried out.

Overview of Medical Waste Incineration Systems

 Waste Disposal

 Waste Incineration Systems

Scientific research is currently geared towards making xenotransplantation a clinical procedure. Most articles and books have been written challenging xenotransplantation from the moral, religious and medical perspectives. However, little or no attention has been given to the potential threat of xenotransplantation to the environment. This work through critical reasoning takes up this daunting challenge of exposing the inherent potential threats that xenotransplantation could pose to the already degrading environment. It recommends a halt in the research on xenotransplantation to avoid its potential threats to humans and the environment at large.
Key words: environment, xenotransplantation, effects, population, degradation

Xenotransplantation Technology and Its Potential Effects on The Environment

Environment

 xenotransplantation

 effects

 population

 degradation

A simplified formula expression is presented in this article to find penetrating capacity of a cell phone wave or a radio wave in terms of comparison with a corresponding light wave.  This is done such that anyone can use the formula.  Our world can control frequencies of cell phone waves or radio waves, and time limits for using these waves.  This control can also control cell phone wave pollution.  It is suggested that cell phone waves or radio waves should have frequency at least (more than) 10 GHz for a safer world.  It is further suggested to increase frequency of cell phone waves or radio waves as much as possible for a safer world.

Volume 3 Issue 3

Assessment of anthropogenic sources of pollution along Mazai and Matsheumhlope streams in Bulawayo, Zimbabwe using GIS and Remote Sensing tools

A Review on The Combustion Systems in Medical Waste Management and Its Environmental Effects in Turkey

Overview of Medical Waste Incineration Systems

Xenotransplantation Technology and Its Potential Effects on The Environment

Formula for Harmfulness of Cell Phone Waves for One Type of Pollution

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