Environment acid rain harm

Acid rain harms the environment in a number of ways it dissolves many rocks and metals, alters the composition of soils, groundwaters, and lakes, and alters the environmental conditions of living organisms. Acid rain is also particularly harmful to ancient objects and structures, as it plays an important role in their deterioration and sometimes total destruction. Unprotected limestone, marble, and sandstone, all of them widely used in ancient times for building and making statuary, are disintegrated by acid rain, which... 

Acid rain is extremely harmful to the environment. All of the following are ways that acid rain affects the environment EXCEPT —... 

N and ppm levels of various metals such as vanadium and nickel). These elements are harmful to the environment, as upon combustion they produce SOx and NOx gases (responsible for acid rain), and to the chemical industry, as these molecules can poison the catalysts needed for the subsequent cracking and reforming operations (see Box 2, and Chapter 1, Section 1.2.1). 

Organic sulphur- and nitrogen-compounds in motor fuels are a source for acid rain and harmful to the environment. Moreover, they are poisonous to the auto exhaust catalysts. To meet new developments in EU regulations on the S-concentration, a commonly applied one-step hydrodesulfurization (HDS), using conventional catalysts, e.g. C0-M0/7-AI2O3, is insufficient. A second HDS step, viz. a deep HDS step, can be more economical to reduce the S-content to the currently allowed European level of 350 ppm. This level will be reduced further to 50 ppm in 2005 [1]. In the first HDS step, often the heavy organic sulfur-containing polyaromatics survived, such as dibenzothiophene (DBT) and (4-, and/or 6-) alkylated DBTs [2,3]. They are the most refractory. In crude oils, there are also aromatic N-compounds, which suppress the performance of the HDS catalysts. Hence, a model feed for representative HDS-activity measurements should contain characteristic S- and N- compounds for practical relevance. 

Energy and environment are inextricably intertwined issues. Eneigy production is one of the chief causes of air pollution, and conversely, eneigy production can be a major solution to environmental problems. Acid rain caused by burning fossil fuels and dischaiging pollutants such as nitrous oxide and sulfur dioxide results in harm to aquatic hfe, animals, vegetation, and humans. 

Environmental Impact - Carbon dioxide is a greenhouse gas, and sulfur dioxide and nitrogen oxides may ccxitribute to acid rain. In an aquatic environment ammonia concentrations over 1.25 mg/1 are harmful to fish. 

After the Second World War, industrialization took place at a tremendous pace without giving any thought to its effects on the environment, flora and fauna, and peoples safety and heath. This led to increased global warming, depletion of ozone protective cover from harmful UV radiation, contamination of land and water ways due to release of toxic chemicals by industries, reduction in nonrenewable resources such as petroleum, destructions of forest cover due to acid rains, increased health problems, and industrial accidents resulting in loss of life and property. 

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