environmental protection.pptx
- Количество слайдов: 13
environmental protection Julia Volodkina
Pollution in the narrow sense is the introduction of any new medium, not typical for her physical, chemical and biological agents or excess of natural levels of these agents in the environment. Since the object Pollution is always biogeocoenosis , the presence of hazardous substances means the use of modes of exposure to environmental factors, resulting in to a violation of an environmental niche. INTRODUCTION
* means of application of chemicals used in forestry, of agriculture-ve; * Emissions from industry and motor vehicles; * Waste production and consumption; * Spillage of toxic substances in case of accidents (oil, petroleum products, etc. ); * Nuclear power, nuclear testing; The main sources of land contamination
* Precipitation: many chemical compounds (gases - oxides of sulfur and nitrogen) * Dust and aerosols: solid and liquid compounds in dry weather is usually deposited directly in the form of dust and aerosols. * With the direct absorption of gaseous compounds by soil: the weather is dry gases can be directly absorbed by the soil, especially wet * With the plant litter: the various harmful compounds, in any aggregate state, the leaves are absorbed through the stomata, or deposited on the surface.
* Ingredient-contamination as a combination of substances, quantitatively or qualitatively alien to the natural ecosystem * Parametric pollution is associated with a change in the qualitative parameters of the environment * Biological pollution is impact on the composition and structure of populations and its individual members TYPES OF ENVIRONMENTAL POLLUTION AND DIRECTION OF ITS PROTECTION
ingredient contamination - a set of compounds, quantitatively or qualitatively alien to the ecosystem (which may be mineral - waste dumps and organic - domestic waste water, chemicals, food industry wastes, etc. ) Ingredient contamination
Organic pollution - pollution, such as aquatic substances capable of fermentation, putrefaction: food waste, paper and pulp industries, not purified sewage effluents Organic pollution
NOISE Noise pollution adversely affects the human body, causing: - Fatigue, - Reduction of mental activity, - Decrease in productivity, - The development of cardiovascular disease - Nerve disease Parametric POLLUTION
LIGHT Light pollution is created in violation of the natural modes light as a result of the impact of artificial light sources leads to anomalies in the lives of animals and plants Parametric POLLUTION
RADIOACTIVE Exposure to ionizing radiation causes damage to cells the human body in two ways 1) Genetic damage, which alter the genes and chromosomes. 2) physical injuries: burns, miscarriages, smooth cataracts, cancer bone disease, thyroid and mammary glands Parametric POLLUTION
Protecting the environment is made up of: - The legal protection that described the scientific principles of environmental law in the form of laws, binding; - Material incentives for environmental management, seeking to make it economically feasible for businesses; - Protection engineering, which develops environmental and energy saving technologies and equipment. OBJECTS AND PRINCIPLES OF ENVIRONMENTAL PROTECTION
Environmental regulations - a system of laws and other legal acts which regulate the relations in environmental conservation and restoration of natural resources. THE LAW OF NATURE ON GUARD
*http: //culture-world. ucoz. com *http: //arsob. narod. ru/gos 48. html *http: //referat. yabotanik. ru Sources