沧州炼油厂恶臭污染与防治浅析

炼油厂在生产过程中产生的废气易引起环境恶臭污染，通过对污染源进行治理，加强生产管理，杜绝无组织排放，实行有效监督是防止恶臭污染的关键。     

济南市二氧化硫污染现状及防治对策

近年来，济南市的经济快速发展，但随之而来的环境污染特别是大气污染则日益加剧。空气中总悬浮颗粒物、二氧化硫和氮氧化物等主要污染物都不同程度的超过国家规定的环境质量标准，特别是冬季二氧化硫污染相当严重。据监测，１９９７年冬季采暖期间，空气中二氧化硫的平均浓度为０－３６５ｍｇ／Ｎｍ３，为非采暖期的３－６倍，若在逆温、静风等不良气候条件下，二氧化硫日均值可达１－０ｍｇ／Ｎｍ３，超过国家二级空气质量标准的５－７倍。由于受二氧化硫污染影响，冬季空气质量时有恶化。１９９７年１１月下旬连续数日出现酸雾。二氧化硫…     

中国米质气候资源的地域分布

稻米品质受着气候条件的明显影响。在我国不同地域，米质气候资源各不相同，对米质的影响也各具特色，总的趋势是，北方优于南方；西部优于东部；晚茬口水稻优于旱茬口；在地形复杂地区，米质气候资源还具有垂直地带性结构。我国丰富的米质气候资源为各种类型优质米的生产创造出优越的环境条件。     

小城镇环境保护对策探讨

本文介绍了我国小城镇的发展概况，分析了小城镇发展中存在的环境问题，为实现小城镇的可持续发展，针对废水、废气、噪声、固废污染及生态环境问题提出了环境保护对策及措施。     

广州市黄埔地区1984～1994年酸雨状况及分析

黄埔地区是广州市重要的工业区，本文以1984-1994年酸雨监测资料为依据，分析了该地区11年来的酸雨污染状况及特点，并对酸雨成因及其与大气污染的关系进行了初步探讨。     

对广州市车辆废气污染问题的思考

本针对广州近年出现的城市化异常现象和大气污染特征，分析了机动车废气污染的成因和造成大气污染的各种因素，提出了解决机动车污染和增强大气环境调节能力的对策和措施．     

兰州市城市生活垃圾处理研究

城市生活垃圾是指在城市日常生活中或者为城市日常生活提供服务的活动中产生的固体废物以及法律、行政规定视为城市生活垃圾的固体废弃物.随着中国城市化进程的加快和人民生活水平的提高,城市生活垃圾也在以每年8%～10%的速度增长,若垃圾问题得不到妥善解决,就会制约兰州市的发展.在对兰州市城市生活垃圾处理现状及存在问题分析的基础上,根据兰州市生活垃圾的特性,提出兰州市城市生活垃圾的处理办法:兰州市城市生活垃圾应当推行分类收集制度,由目前单一的卫生填埋处理走向资源化综合处理.     

优化CASS工艺的设想

综合分析了CASS工艺的不足及其产生原因,借鉴反硝化除磷和BCFS工艺的思想,提出在原有的CASS工艺的基础上进一步优化,以达到更好的脱氮除磷的目的.     

对水体中有机污染综合指标及其相互间的关系探研

通过对水体中各有机污染综合指标的含义及各指标测定方法条件控制的论述,阐明了各指标间的相互关系,对我们在水质监测中的质量控制、数据的综合分析和判断有一定的指导意义。     

Influence of new town development on the urban heat island - The case of the Bundang area

Five new towns have been developed around the Seoul metropolitan area since 1996. However, these new towns generate lots of traffic and related problems in the areas including those new towns and Seoul as a result of increases in population and a lack of ecological-self-sufficiency. Currently, construction of another new town is under deliberation, and what should be a major consider is the notion that the new town be located within a wide, green zone. Many studies have revealed that green space can play an important role in improving urban eco-meteorological capability and air quality. In order to analyze the urban heat island which will be created by the new urban development, and to investigate the local thermal environment and its negative effects caused by a change of land use type and urbanization, Landsat TM images were used for extraction of urban surface temperature according to changes of land use over the last 15 years. These data are analyzed together with digital land use and topographic information. As a study result, it was found the urban heat island of the study area from 198.5 to 1999 rapidly developed which showed a difference of mean temperature above 2.0. Before the Bundang new town construction the temperature of the residential area was the same as a forest, but during the new town construction in 1991 analysis revealed the creation of an urban heat island. The temperature of a forest whose size is over 50% of the investigation area was lowest, and thus the presence of a forest is believed to have a direct cooling effect on the urban environment and its surroundings. The mean temperature of the residential and commercial areas in the study was found to be 4.5 higher than the forest, and therefore this part of land use is believed to be the main factor causing the temperature increase of the urban heat island.