Use of oyster, Crassostrea gigas, and ambient water to assess metal pollution status of the charting coastal area, Taiwan, after the 1986 green oyster incident

Most of the oyster mariculture beds in Taiwan are in areas located along the west of the island. One of these areas is the Charting coast, where green oysters were found in 1986. During this incident, which became internationally notorious, mass mortality occurred in the Charting oyster beds. After this discovery, measures were taken by the authorities to counter pollution which lead to the problem. The effectiveness of these pollution control actions was evaluated in this study. Two water column indicators, particulate and sediment, and oysters were sampled and analyzed for metals (Cu, Zn, Pb, Ni) in Charting and its neighboring areas, Kuen-Shen Lake and Shin-Da Harbor, and the control area/station, Dah-Pen Wan. The current study shows that copper and zinc concentrations in both oysters and particulates significantly decreased in the Charting area, compared with concentrations found during the period of the green oyster incident. Six years after the incident, the copper concentration in oysters had fallen from a high of 4400 μg/g dry weight to an average of 300±69 μg/g dry weight, figures similar to the copper concentration in 1982. The pollution control actions taken after the incident are believed to be the cause of this recovery of the coastal environment. Nevertheless, Charting still produced oysters with the highest copper and zinc concentrations among the areas investigated. Further measures currently being taken by the government, including removing the sediment of some portions of Erhjin Chi, should be able to bring the oyster copper concentrations down to the levels similar to those observed in the neighboring area, (average concentration below 200 μg/g dry weight or all time maximum concentration below 500 μg/g dry weight).     

绿色化学研究与生态环境保护

绿色化学是指利用一系列原理来降低或消除在化工产品的设计、生产及应用中有害物质的使用和产生的科学。它致力于从源头上制止污染物的生成。文章从非传统的绿色原材料、溶剂、试剂、催化剂、安全化学品及合成方法方面综述了绿色化学的研究进展。绿色化学从材料和能源的内在性质上面对生态环境问题的挑战，在分子水平上设计结构及其相关的性质，通过减少内在的危害而使生态系统的发展具有可持续性。发展绿色化学是实现生态环境保护的途径。     

替代化工污染项目的清洁生产技术

在调研了上海化学工业生产技术的基础上，针对目前污染严重的一些生产工艺提出了可替代的清洁生产技术。在洁净煤、环氧丙烷、碳酸二甲酯、聚醚、异丙苯、丙烯腈、丙二醇醚等项目方面提出了相应的建议。     

城镇绿地对空气质量的影响--以中山市小榄镇为例

对中山市小榄镇公园、街道、居住区等不同地区的空气质量进行了测定．结果表明：公园、苗圃、金菊花园、镇府大院和小榄中学等绿化好、总绿量大的地带，CO2浓度[Ψ(CO2)／10^-6]和含菌量(n／m^-3)明显较低，负离子浓度明显较高；街道、新永路民居、商场、工厂、车站和果菜批发市场等绿化差、总绿量小的地带，Ψ(CO2)／10^-6和含菌量明显偏高，负离子浓度明显偏低．街道上空的Ψ(CO2)与车流量之间有极显著相关关系Ψ(CO2)与人流量之间相关关系不显著．     

藤茶绿枝扦插技术初探

使用NAA、IAA、IBA、ABT ,浓度分别为 10 0× 10 -6、2 0 0× 10 -6、30 0× 10 -6、5 0 0× 10 -6,基质分别为细炉灰渣、洁净河沙、湿锯末进行藤茶深枝扦插试验 ,试验结果表明 :半木质化枝条经 30 0 - 5 0 0× 10 -6NAA处理 3-5s ,基质用湿锯末 ,在 2 0 - 2 5℃温度下 ,相对湿度 90 %的大棚喷雾环境中 ,成苗率高、质量好     

论制约21世纪城市园林绿化发展的因素

改革开放以来，我国城市园林绿化事业虽然取得了长足进展，但仍面临着人多地少、资金严重缺乏的窘境，本文分析了产业这些问题的症结，提出了相应的对策与建议。     

略论绿色营销

当今全球环保思潮的冲击和绿色消费的方兴未艾，企业如果沿袭传统的营销方式，必将被淘汰．企业要想生存发展，并在竞争中立于不败之地，必须适应新的形势，改弦易辙，实施绿色营销，以满足人们的无污染、无公害、延年益寿的需求．本文讨论了绿色营销的现状及其对企业发展的影响，并提出了实施绿色营销的战略对策．     

上海化工原料与产品的清洁生产技术

在调研了上海化学工业生产工艺的基础上,结合将来上海化学的原料和产品,着重提出了一些清洁生产工艺的建议和规划。在异氰酸酯、甲基丙烯酸甲酯、叔丁胺、苯胺、亚氨基二乙酸、碳四、苯二酚等项目方面提出了相应的建议。     

大学校园的生态足迹探究

生态足迹分析法是评价绿色校园建设水平较好的指标之一,能定量揭示学校的生态状况,本文结合黑龙江科技学院的校园状况,简要介绍生态足迹成分法的原理和计算分析方法.研究结果表明,黑龙江科技学院2005年总生态足迹为18410.53 hm2,即需要18410.53 hm2生态生产性土地来支持学校的各类消费以及吸纳废弃物;人均生态足迹为0.94 hm2/人,与全国人均生态足迹1.5 hm2相比较,学校的生态状况比较乐观.