厦门某工业区饮用水有机污染调查及治理的初步研究

厦门某工业区饮用水有机污染调查及治理的初步研究干侣仙，廖绵初，郑金树，高振华（厦门大学抗癌研究中心厦门361005国家海洋局第三海洋研究所，厦门市卫生防疫站）厦门市某重要工业区，面积约为厦门岛区面积的1/6，却集中了厦门市规模较大、污染严重的如合成氨..

厦门饮用水有机污染物危害的研究

厦门饮用水有机污染物危害的研究厦门市卫生防疫站高振华，梁荣春国家海洋局第三研究所郑金树厦门大学抗癌研究中心于侣仙，廖绵初许多研究表明，城市饮用水中存在着致突变的有机物，它们来源于水源水的污染、饮水氯化消毒的副产物三卤甲烷（THM3）等。因此，近年来饮..

蚕豆根尖微核技术在饮用水致突变性研究中的应用

采用蚕豆根尖微核（Mn）监测技术，对饮用水有机污染物的诱变性进行了研究。结果表明：饮用水诱变性强度，枯水期＞平水期＞丰水期。采用混凝沉淀工艺，出厂水Mn比进厂水降低40.6%。用气浮法制水工艺的出厂水Mn在正常范围内

Occurrence and Distribution of Organotin Compounds in Thais clavigera from Xiamen Coast

采用戊基化格式衍生法,gC-fPd分析了厦门港周边海域9个小岛屿分布的疣荔枝螺(THAIS ClAVIgErA)体内3种丁基锡化合物(buTylTInS)和3种苯基锡化合物(PHEnylTInS)的存在形态与分布特征.结果表明,丁基锡化合物总浓度(ΣbTS)为0.3~70.6ng.g-1,平均值为28.8ng.g-1,以一丁基锡化合物(MbT)为主.苯基锡化合物总浓度(ΣPHTS)为nd~18.8ng.g-1,平均值为7.9ng.g-1,以三苯基锡化合物为主.厦门港周边海域以丁基锡化合物为主要污染物,占到总有机锡化合物(ΣOTS)的74.3%~96.8%.疣荔枝螺体内(ΣbTS)和(ΣPHTS)呈现从厦门港内到港外逐渐降低的趋势.疣荔枝螺体内TbT和TPHT的浓度显示良好的相关关系(r2=0.7109,P<0.01),说明TPHT和TbT来源趋同,即来源于船舶防污涂料,或水产养殖污染源.与我国东南沿海港口相比,厦门海域疣荔枝螺体内丁基锡化合物的污染处于一个较低水平但比2002年有所加重.Occurrence and distribution of 6 organotin compounds including butyltin and phenyltin species were detected in Thais clavigera which were collected from 9 coastal areas sites around Xiamen Coast,by pentylized derivatization,GC-FPD.Results indicated that all Thais clavigera samples were contaminated with organotin compounds.The concentrations in Thais clavigera soft bodies varied from 0.3 to 70.6 ng.g -1 with a mean value of 28.8 ng.g -1 for butyltin compounds,and from nd to 18.8 ng.g -1 with a mean value of 7.9 ng.g -1 for phenyltin compounds,respectively.MBT and TPhT were high levels in butyltin compounds and phentyltin compounds,respectively.In addition,butyltin compounds were the dominant contaminates in all samples with high percentage from 74.3% to 96.8%.There was a significant correlation between TBT and TPhT (R2 = 0.710 9,p < 0.01).This result showed that both TBT and TPhT came from antifouling paints for ships or for mariculture nets.Compared with those data reported from the other regions around southeast coast of China,present study reveals that contaminated level of organotin compounds in Thais clavigera are relatively lower in Xiamen Coast.But it is higher than those in 2002.国家自然科学基金项目(40476048;20777060

Study on Hydrocarbon Compounds in Atmosphere over The South PaciFic Ocean and Antarctic waters

1992—1993年间采集了南极近海不同海域的大气样品,采用gC—MS测定,调查了其中有机物的种类,石油烃化合物的总量,并作了初步分析研究。From November of 1992 to January of 1993, there were eight suspended particle samples, which were in the atmosphere over West South PaciFic Ocean and Antarctic waters, were taken in a voyage of an inverstigation ship (JI DI), the ship voyaged on Antarctic Waters and round earth For scientiFic inverstigation.Those samples were analysed by G C and GC-MS For hydrocarbon compounds.The results showed that concentrations of hydrocarbons in open ocean atmosphere were eFFected by New Guinea and New Zealand islands and trade wind zone, and decleased in Antarctic waters area obviously.The compounds such as dibutyl-phthalate, chloro-hexadecane, alkyl-phenol and alkyl-benzene were detected too

Projection Pursuit Regressive Model for Forecasting Environmental Pollution

环境污染预测中常用的统计预测法基于“假定 -模拟 -预测”这样一种证实性数据分析思维模式 ,难以适应非线性、非正态分布数据分析 .投影寻踪技术采用“审视数据 -模拟 -预测”这样一条探索性数据分析新途径 ,可以用来解决一定程度上的非线性、非正态问题 .应用投影寻踪回归新技术 ,建立了大气污染物SO2 浓度的预测模型 ,其预测建模样本的拟合合格率为 96 % ,预留预测检验样本预测准确率为 80 % ,高于模糊识别模型的预测精度The general statistical method on forecast of environmental pollution, which is based on the analyzing idea of certainty data named as "assumption-simulation-forecast", cannot be applied to nonlinear data and data presenting no normal school. By using the new idea of "examination of data-simulation-forecast", projection pursuit regressive technique can solve the problem of nonlinearity and abnormality to some extent. A projection pursuit regression model on concentration forecast of air pollutant SO 2 was proposed .The results of the forecasts showed that the qualified rates of fitting and forecasting of the model reached 96% and 80%,respectively,both of which were higher than the forecasting precision in fuzzy recognition model

矿渣与亚硫酸钙制备硫铝酸盐水泥试验

以亚硫酸钙及矿渣为原料制备硫铝酸盐水泥(SAC),采用X射线粉末衍射仪(XRD)和扫描电子显微镜(SEM)等分析测试手段,系统研究了煅烧温度对SAC熟料组成、结构和力学强度的影响。结果表明:1 300℃煅烧条件下所得SAC熟料的物相组成较为理想,水泥抗压强度和抗折强度较高,1,3和28 d龄期的抗压强度分别为48.7,55.2,78.5 MPa,抗折强度分别为10.2,10.9,11.9 MPa

InAs/GaAs单电子量子点量子比特的失相率

在有效质量包络函数理论近似下，计算了InAs/GaAs量子点的参数相图，确切定义了InAs/GaAs量子点的参数的范围，使得该量子点能作为二能级量子系统用于量子计算；发现静电场能够有效延长消相干时间，当外加静电场超过20kV/cm时，消相干时间能够达到毫秒量级。这些结果有助于未来实现固态量子计算

Introduction of A New Device for Sampling Organic Pollutants

介绍了一种由类脂物和半透膜组成的采样装置。该装置可模拟生物监测可被生物富集的有机污染物。将其用于监测大气、水体、沉积物中的多氯联苯 (PCBs)、有机氯农药(OCP)和多环芳烃 (PAHs)时 ,结果满意。A new mimic biological sampling devices, consisting of lipid containing semipermeable membrane for sampling organic pollutants has been introduced. Satisfactory results were obtained when this kind of device was used for monitoring organic pollutants, such as polychlorinated biphenyls (PCBs), organicchlorined pesticides (OCP) and polynuclear aromatic hydrocarbons (PAHs), in air, water, seawater and sediment