经济欠发达山区矿泉水资源的开发利用--以梅州市为例

基于矿泉水与人体健康的关系、在社会经济发展中的作用,以及对梅州市矿泉水资源条件及其开发利用现状的调研,探讨了经济欠发达山区矿泉水资源的开发利用对策和前景.认为应统一资源管理,加强质量监督力度,打造优质品牌,提高市场竞争能力,争取与食品、旅游等部门联营,使矿泉水产品多样化、系列化;结合地方工业建设和梅州旅游市场需求,培育矿泉水消费市场.     

芜湖市郊土壤污染对土壤动物群落结构的影响

研究表明，芜湖市郊农田土壤动物群落的组成与数量随污染程度的加重而减少，土壤动物密度也呈同样的变化趋势，特别是中小型土壤动物，优势类群数量发生较大消长，常见类群和稀有类群的组成逐渐减少．多样性指数H与重金属污染程度之间关系因受到季节的影响而变得复杂：冬季和初夏污染较重样地优势类群数量减少，群落均匀性指数E增加而优势度指数C减小，多样性指数H较高；而春季处于过渡阶段，某些类群(如螨类)数量爆发，C增高，H较小．土壤动物群落密度一类群指数DG随污染加重而减小．受到重金属污染的农田土壤动物的表聚性减弱，甚至出现逆分布现象．图1表4参15     

成都市大气中臭氧的分布及污染水平

根据2001年6月成都市建成区大气O3监测结果，对其在该时段大气中O3的分布现状、污染水平、污染特征进行分析，揭示了成都市大气环境中O3的时空分布规律以及O3的浓度受天气状况的影响规律。     

Seasonal Fluctuation in Heavy Metal Pollution in Iran´s Siahroud River - A Preliminary Study (7 pp)

Background The management of its available water resources has become a key issue for Iran. During the last few decades, the water quality of Siahroud River in the coastal plain of the Caspian Sea in Gilan Province in Northern Iran has significantly degraded. The scarcity of water has been compounded by rapid population growth and increasing pollution from fertilizers, pesticides, and municipal and industrial wastes. One of the sources of this degradation is the movement of heavy metals from the river's watershed into the various water systems supported by the river, including the water system for Rasht City. Methods To study the magnitude of heavy metal pollution in the Siahroud River, seven heavy metals including Zn, Cu, Pb, Cd, Mn, Fe, and Ni were measured in duplicate from replicated water samples collected over five consecutive seasons and analyzed by Atomic Absorption Spectrometry. In situ measurements of pH were taken with the samples and total organic carbon (TOC) was analyzed by IR gas measurement. Results The results demonstrated that four of the seven heavy metals including Pb, Fe, Cd, and Mn exceeded permissible safe levels as established by the United States Environmental Protection Agency. Multivariate factor analysis suggested that industrial land-use was the main contributing factor for the high levels of Fe and Mn in the Siahroud River, whereas, Cd was principly from agricultural activities in the watershed. The data also suggested that pH and TOC had an important role in the behaviour of Pb and Mn, and that the elevated levels of these two heavy metals in Siahroud River was the consequence of other anthropogenic sources. Only negligible levels of Zn, Cu and Ni were detected. Finally, all the sampling stations were subjected to cluster analysis. The results indicated that three different zones could be distinguished according to the levels of pollution. In addition, it was shown that the urban areas did not have a significant impact on the heavy metal pollution in the river. This observation stems from the fact that the data from the sampling stations before and after Rasht City were not significantly different. Recommendation . Preventive measures need to be undertaken in the land-use systems and watersheds of the Siahroud River to reduce the pollution levels of Pb, Cd, Mn and Fe.     

乌鲁木齐市大气环境质量现状及其变化趋势分析

本文对乌鲁木齐市大气环境质量及其发展趋势作了简要的分析,说明目前市大气属煤烟-沙尘型污染区,氮氧化物和二氧化硫随着国民经济能耗的增加有发展的趋势,其它污染物仍稳定在目前水平,或稍有下降.     

乌鲁木齐市主要街道空气中一氧化碳污染规律的研究

本文通过对影响街道空气中一氧化碳污染的因素进行了大量的监测及综合分析,找出乌鲁木齐市主要街道空气中一氧化碳的污染规律,为控制我市汽车污染提供科学依据.     

乌鲁木齐市与北方四城市的空气污染对比及原因分析

根据乌鲁木齐、兰州、太原、石家庄和北京五大北方城市的空气污染特征，结合各城市人口、经济和地理位置等要素，分析了乌鲁木齐市与其它城市空气污染及成因的主要异同点，对目前乌鲁木齐市大气污染治理中的若干问题进行了探讨。     

试谈乌鲁木齐市城市环境保护对策

针对乌鲁木齐市目前的城市环境质量状况和环境保护中存在的问题，分别从大气环境、水环境、生态环境及城市综合整治方面分析了成因，从可持续发展的角度提出了城市环境保护的针对性措施。     

乌鲁木齐市燃煤点源现状分析

对乌鲁木齐市燃煤点派数量、耗煤量、污染物的排放量以及在各功能区的分布分别进行了统计分析，对污染物的排放量在不同高度空间的分布也进行了统计分析，从而得出了确切的结论并提出了相应的建议。     

从城市规划角度浅议城市道路噪声污染问题解决途径

对兰州市近三年来交通噪声的特征在城市空间结构的背景上,以公众反映为尺度进行了分析评价,研究表明,(1)公众对不同城市空间结构上道路噪声反映均为起伏大、吵闹和一般不可接受;(2)部分区域噪声污染指标超标与早期规划有关;(3)近期道路规划和建设是噪声下降的主要原因;最后指出,基于规划基础上的环境问题规律性的研究和基于环境保护理念下的规划设计模式的研究将是今后环保专业和规划专业人员共同探讨的课题。