在线赌博平台

Explanatory Notes on Main Statistical Indicators

Developed Area

refers to the land in administrative areas having been developed concentratedly with municipal public facilities. For core city, developed areas include concentrated areas and decentralized areas having basic perfect municipal public facilities; for the city with several towns, developed areas are composed of several concentrated areas with municipal public facilities. Therefore, the scope of developed areas refers to actual construction land of a city.

Total Water Resources

refer to the total volume of surface and underground water formed by precipitation in the local region, which equals to the sum of surface runoff and the infiltration supplement of underground water from precipitation, excluding crossing water.

Chemical Oxygen Demand (COD)

refers to the water pollution index of measuring the mass concentration of oxygen consumed in the chemical decomposition of organic and inorganic matter.

Industrial Solid Wastes Produced

refers to the industrial solid wastes that are not listed in the National Catalogue of Hazardous Wastes, or not regarded as hazardous according to the national hazardous waste identification standards (GB5085), solid waste-Extraction procedure for leaching toxicity (GB5086) and solid waste-Extraction procedure for leaching toxicity (GB/T 15555). The calculation formula is as followed:

Common Industrial Solid Wastes Produced = (common industrial solid wastes utilized-the proportion of utilized stock of previous years) + common industrial solid waste stock + (common industrial solid wastes disposed-the proportion of disposed stock of previous years) + common industrial solid wastes discharged.

Industrial Solid Wastes Comprehensively Utilized

refers to volume of solid wastes from which useful materials can be extracted or which can be converted into usable resources, energy or other materials by means of reclamation, processing, recycling and exchange (including utilizing in the year the stocks of industrial solid wastes of the previous year) during the report period, e.g. being used as agricultural fertilizers, building materials or as material for paving road. Examples of such utilization include fertilizers, building materials and road materials. The information shall be collected by the producing units of the wastes.

Ratio of Comprehensive Utilization of Industrial Waste Residue

refers to the percentage of industrial solid wastes utilized over industrial solid wastes produced (including stocks of the previous years). It is calculated as:

Ratio of Comprehensive Utilization of Industrial Waste Residue =

Level of Equivalent Noise (LEQ)

refers to the A sound pressure of a continuous steady state sound, in the specified time interval with the same mean square A sound pressure as the time variant noise. This sound level of a continuous steady state sound is the equivalent sound level of the time variant noise. The smaller of the value of noise equivalent sound level (dB), the better.

Natural Reserves

refers to certain areas of land, waters or sea that are representative in natural ecological systems, or are natural habitats for rare or endangered wild animals or plants, or water conservation zones, or the location of important natural or historic relics, which are marked by law and put under special protection and management. Natural reserves are designated by the formal approval of governments at and above county level. Scenic spots and cultural preservation zones are not included.