The causes of deterioration of air
Vision of the future Although air pollution, noise pollution, climate change and the depletion of the ozone layer in the stratosphere affect the community as a whole, children, the elderly and the poorest are the most vulnerable to its consequences. Energy, transport and forestry 11, energy efficiency and conversion of boilers in the Peruvian industry study of the use program of liquefied petroleum gas in taxis as a mitigation option of GHG emissionsand additional demand for the Camisea gas in the framework of the Convention on Climate Change.
The causes of deterioration of air
The urban noise is also a major environmental problem in Peru. Dust and dirt particles in the air not only carry with them the adsorbed pollutants mentioned above but may exert an abrasive action on books and paper. Unfortunately, colors fade selectively, some disappearing while other remain unchanged, which means that the color relationships of a painting can be grossly distorted. Well, perhaps you should keep your mouth shut more often to keep in that hot air. Biblioteca del Transporte. Silverfish are wingless insects with long antennae and usually with three 3 long, tail-like appendages that are of silver-gray color. With respect to the population, Lima grew from 1. The type of materials forming part of the museum collection that are subject to damage by light are pigments and dyestuff, including inks; paper and other cellulose materials; and, various other organic materials. For example, in Ilo has been measured in an hour, sulfur dioxide concentrations that regularly exceed the micrograms per cubic meter Association Committee of Environmental Management — Ilo, , a figure significantly above the directives of the European Union, of micrograms per cubic meter Korc, Farias and Cerda, It is this reaction that results in newspapers' turning yellow on exposure to light. The materials of which library and archive collections are composed, namely paper, parchment, palm leaves, birch bark, leather and adhesives used in bookbinding, are susceptible to two main forms of deterioration. Fibers in the paper are broken into smaller and smaller units until they are so short they can no longer maintain the bonds necessary to hold the paper together. Ilo,
Depletion of the ozone layer refers to the decrease in natural concentrations of ozone in the stratosphere with the consequent loss of filtration capacity of UV-B radiation; this brings adverse effects to human health, negative impacts on terrestrial and aquatic ecosystems, biological and genetic alterations, etc.
If too high, humidity hastens acid deterioration. They have long antennae of various shapes, 2 to 5 mm long and dark red to black in color.
Diseases caused by indoor air pollution
Atmospheric Pollutants Materials of organic origin such as leather, parchment and artifacts in which cellulose fibers such as paper products form the support are likely to be soiled and stained by solid particles of carbon, tarry matters and other solid contaminants. Deterioration of Paper Caused By Insects The most common types of insects that attack paper objects are: Termites are small, yellowish or whitish social insects that live in wood and under the ground. Fibers in the paper are broken into smaller and smaller units until they are so short they can no longer maintain the bonds necessary to hold the paper together. It can be classified in 2 sections: visible and invisible air pollution. Certain invisible changes also occur at the same time when these visible effects of light are taking place. These two forms of deterioration are interconnected because humid conditions favor the growth of fungi and accumulations of dust and dirt will attract insects. They bore holes into books and other organic materials. In fact, the abundance of carbon dioxide in the air is one of the causes of the greenhouse effect. This type of insects cause superficial damage to paper of irregular outline, but much smaller than that caused by cockroaches, especially the glossy type, books and documents, and wallpaper, and, eats away glue, paste, etc.
Agricultural activities, due to the use of pesticides, insecticides, and fertilizers that emit harmful chemicals 4. The regulations for hydrocarbon activities also includes maximum acceptable concentrations of air contaminants.
Air pollution causes
In Peru, the outdoor air quality has deteriorated over the years. Rodents and insects are the worst enemies of books and other organic materials that are cellulose in nature. Normally, the presence of greenhouse gases should be beneficial for the planet because they absorb the infra-red radiation produced by the surface of the earth. The greatest danger that can arise from an excessively high relative humidity is the tendency for molds to grow on any material that can provide nutriment, such as glue, leather and paper. The execution of basic and preventive actions at local level, with the community participation, would bring many benefits. Emissions from industries and factories, releasing large amount of carbon monoxide, hydrocarbon, chemicals and organic compounds into the air 3. It can be classified in 2 sections: visible and invisible air pollution. Energy, transport and forestry 11, energy efficiency and conversion of boilers in the Peruvian industry study of the use program of liquefied petroleum gas in taxis as a mitigation option of GHG emissions , and additional demand for the Camisea gas in the framework of the Convention on Climate Change. Paper and related materials, on the other hand, deteriorate rapidly with temperature and relative humidity changes. In small towns with mining and metallurgical units have also been taken actions. Supreme Decree No. They say there is an air quality warning in effect today. Dust and dirt particles in the air not only carry with them the adsorbed pollutants mentioned above but may exert an abrasive action on books and paper. Fibers in the paper are broken into smaller and smaller units until they are so short they can no longer maintain the bonds necessary to hold the paper together. Biological agents attack paper and other organic materials when both temperature and humidity are uncontrolled.
Biological Factors Where there is condensation or moisture due to high humidity, there is always the presence of biological growths such molds or fungi, insects and rodents causing infestation.
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