Complex pollution problems action

Concerns about the environmental effects of emissions resulting from the combustion of fossil fuels, particularly coal, continue to increase as the utilization of these fuels grows. The large amounts of sulfur dioxide and nitrogen oxides emitted into the atmosphere and the attempts to tie these fossil-fuel-derived pollutants directly to the undeniably difficult problem of acid rain have caused heated debates, numerous research studies, government actions, and serious efforts to reduce pollution. The issues are extremely complex, and our understanding of the origin, properties, behavior, and effects of these pollutants is incomplete. Often, theories are contradictory. 

Nature created multienzymatic systems to accomplish extremely efficient one-pot tandem catalysis. As in an assembly line, tens of enzymes are well organised to transform simple materials to complex molecules with perfect control of selectivity hy a series of coupled reactions in the cell. It has long been chemists endeavor to extend such coordinated catalytic action to artificial processes to make synthetic chemistry more sustainable. Nowadays, owing to the resource-intensive nature of the current synthetic industry, the development of tandem one-pot reactions, avoiding the use of costly and time-consuming protection-deprotection processes as well as purification procedures of intermediates, has become especially important and valuable because society is confronted with bottle-neck problems such as energy and time shortage and environmental pollution. 

Nowadays, environment is in the middle of our concerns. The pollution of the environment is very complex problem numerous chemicals that have been recognized as poisonous or dangerous in any other sense come in the environment mainly as a result of anthropogenic actions. Atmosphere, waters and soils may contain a number of different organic and inorganic residues present in a wide range of concentrations. Therefore, their de-pollution has become one of the most important tasks worldwide, imposed also by legislative procedures for environment protection. 

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