In 1997 , hefei bus company took part in jac jianghuai auto group company , became its basic place of bus production , including hefei xiandai chief department , yangzhou hongyun , taixxian qiaoxxing , and hefei xinma these four buses basic product places , producing and selling 6 - 12 meter middle and top grade buses , product includes five series , over 60 style , at present it can make 15000 all style buses in one year . it is known that the amount of selling of hefei bus company is increasing gradually . it sold all kinds of 1251 buses in 2000 , the income of it was 2 . 3 hundred millions yuan ; in 2001 , company sold 2100 buses , and the income was about 4 hundred millions ; it sold over 4200 buses in 2002 , the income broke through 10 hundred millions 同时，以65家废气排放大户脱硫工作为重点，实施广州市2003 - 2005年控制二氧化硫工作计划，全面推进工业饮食服务业脱硫降氮和节能降耗的工作，使2003年全市二氧化硫排放量控制在21万吨，比2002年削减1万吨，力保二氧化硫浓度年均值达到国家二级标准2004年排放量降到19万吨，比2002年削减3万吨，浓度优于国家二级标准2005年排放量控制在15万吨以下，比2002年削减7万吨，浓度继续优于国家二级标准。
According characterizes of topography and physiognomy in hechengli village , we analyze and account the gross of biomass in this area by using theory from environmental science , environmental ecology . through surveying the status detailed used by dwellers that lived nearby , we analyze quantitatively the decreasing quantity of soot and sulfur dioxide by using biomass , and then the change in structur of energy and environmental effect 通过运用环境科学、环境生态学的基本原理，根据当地地形地貌的特点对可获得生物质资源总量进行分析、测算；对示范点附近居民的能源使用情况进行详细的调查，定量分析了利用生物质资源后当地烟尘总最和二氧化硫排放总量的削减程度以及使用生物质能对当地居民能源利用结构的改变和产生的环境效应。
So we suggest to take measures to decrease the industrial wastewater and so2 , protect and increase the forest area , decrease the losing of water and soil and stone desert for further improve the quality of ecological environment and insure the sustainable development of ecology , resource , society and economy in guangxi 因此，建议采取控制工业企业废水和二氧化硫排放、保护和扩大森林植被面积、加强水土流失和石漠化治理等措施，进一步提高广西生态环境质量，确保生态、资源、社会、经济可持续发展。
In march 2002 , sepa and environmental defense cooperated in launching the " 4 + 3 + 1 " project , an endeavor to initiate an integrated tec and emissions trading policy in the provinces of shandong , shanxi , jiangsu and henan and the cities of shanghai , tianjin and liuzhou , along with the china hua neng group 2002年3月，国家环境保护总局发环办函[ 2002 ] 51号文，决定与美国环保协会一起，在山东省、山西省、江苏省、河南省、上海市、天津市、柳州市以及中国华能集团公司开展“推动中国二氧化硫排放总量控制及排污交易政策实施的研究项目” （简称“ 4 + 3 + 1 ”项目） 。
Article 30 where any newly built or expanded thermal power plants and other large or medium - sized enterprise that discharge sulfur dioxide more than the prescribed standards for pollutants discharge or the quota of total control allow , supporting facilities for desulphurization and dust removal must be installed or other measures for controlling the discharge of sulfur dioxide or for dust removal must be adopted 第三十条新建、扩建排放二氧化硫的火电厂和其他大中型企业，超过规定的污染物排放标准或者总量控制指标的，必须建设配套脱硫、除尘装置或者采取其他控制二氧化硫排放、除尘的措施。
