环评工作等级划分（Classification of environmental impact assessment）.docVIP

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环评工作等级划分（Classification of environmental impact assessment）.doc

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环评工作等级划分（Classification of environmental impact assessment） Outline requirements: 1.. Grasp the division of the work grade of sound environment impact assessment. 2. familiar with the basic requirements of sound environmental impact assessment at all levels. They are divided into three grades. The first level is the detailed evaluation, the two is the general evaluation, the three is the brief evaluation. 1. the basis for rating classification includes: The scale of construction projects. According to the amount of investment, construction projects can be divided into large, medium and small grades, and the standards for classification of large, medium and small sizes are different in different periods. The type and quantity of noise source. The type and quantity of noise sources are the important basis for the determination of sound environmental impact assessment grade. The construction project of noise within the scope of influence of the environment and protect the environment noise standard and population distribution. The change degree of noise level before and after the construction project. 2. evaluate the basic principles of classification: First order evaluation. A. large and medium-sized construction projects, belonging to the planning area (including the planned built-up area and uncompleted areas) construction projects. Within the range of noise affected by B., there are 0 types of standards applicable to the sound environment quality standard, and areas requiring particularly quiet areas, as well as noise sensitive targets such as protected areas with limited noise. Before and after the construction of C. project, the noise level increased significantly (noise level increased by 5 ~ 10dBA) or the number of affected population increased significantly. The two level evaluation. A. new construction, reconstruction and expansion of large and medium-sized projects, if their functional areas are applicable to the sound environment quality standards, the prov