住宅类房地产项目环境影响技术评估探讨

环境影响技术评估是建设项目环境影响评价文件审批前的一个重要环节,结合住宅类房地产项目的特点,提出对该类项目环境影响评价文件进行技术审查的重点应包括项目选址建设与相关法律、法规、产业政策及规划的相符性,施工期环境影响评价、营运期水环境影响评价,项目内、外环境影响评价等方面,并就该类项目环境影响评价中存在的常见问题进行了探讨,以期为住宅类房地产项目环境影响评价和环境影响评价文件审批提供技术指引和决策参考。     

超纤革制造类项目有机废气环评要点浅析

超纤革制造类项目的有机废气排放是环境影响评价关注的重点内容之一,本论文总结了超纤革制造类项目环境影响评价中有机废气污染和治理的要点,重点关注超纤革制造类项目工艺流程、废气源强核算、污染治理措施的可行性。为超纤革制造类项目的环境影响评价工作提供参考,也为环境保护行政主管部门的审批与管理提供科学依据。     

印染项目环境影响评价关注要点分析

本文以印染项目为例,从相符性、标准以及做好衔接等方面讨论了该类项目环境影响评价应着重关注的环节和内容,对进一步做好印染项目环境影响评价工作积极的现实意义。     

镍铁蓄电池项目环境影响评价中工程分析要点

对镍铁蓄电池项目环境影响评价中工程分析的主要内容进行总结,对项目工艺流程和产排污环节、平衡分析、污染防治措施等工程分析要点进行论述,为该类项目环境影响评价工作提供参考。     

房地产类项目环评中新问题探讨

在分析了环境影响评价作用及房地产类项目的类型、特点的基础上,提出在编写房地产类项目环评报告中除按国家环境影响评价导则要求进行外,还需要重点分析评价项目周边环境对项目产生的潜在影响、评价工作中规划协调性的分析及房地产环评中生态环境影响评价的分析思路.     

编制城市建设绿色建筑类项目环评探究

本文针对房地产类项目,根据在环境影响评价工作中的实际经验,就实际工作中的环境影响评价要点和环境影响评价应关注的问题总结了该类环评工作中应注意的一些问题。     

浅析管道类建设项目环境影响评价工作思路和重点

为了更好的做好管道类建设项目的环境影响评价工序,本文介绍了管道类建设项目的类型,对工程内容及规模、项目选址、工程污染、环境影响等工作思路进行了详细的介绍,同时对管道类项目环境影响评价工作重点穿越方式、环境风险、生态影响等进行了简要的分析,介绍了不同穿越方式的内容和特点,分析了环境风险产生的原因,说明了生态影响的主要内容。     

房地产开发建设项目环境影响分析

为更好地编制房地产开发建设项目的环境影响评价文件,分析了该类项目的主要环境影响问题及原因,提出环境保护对策与建议.     

当前房地产开发项目环境评估工作要点分析

结合房地产开发项目的自身特点,笔者就房地产开发项目环境评估工作要点进行较为详细的介绍,以期为住宅类房地产项目环境影响评价起到一定参考作用。     

钢结构件生产加工项目环境影响评价技术浅议

介绍了钢结构件生产加工项目环境影响评价中工程分析、污染防治措施以及清洁生产等方面的环境影响评价要点,以期为同类项目的环境影响评价、污染治理和环境管理提供参考。     

QUICKScan as a quick and participatory methodology for problem identification and scoping in policy processes

Policy making is required in cases in which a public good needs to be either maintained or created, and private or civil initiatives cannot deal alone with this. Policy making thus starts with a phase of problem identification and determining whether there is a problem that needs to be dealt with. Rapidly evolving contexts exert influence on policy makers who have to take decisions much faster and more accurately than in the past, also facing greater complexity. There is a need for a method that lowers the lead time of the exploratory phase of the policy cycle. At the same time the method should create a joint understanding of the most important interactions. This paper proposes QUICKScan, a method, process and spatially explicit tool, to jointly scope policy problems in a participatory setting, investigate the most important interactions and feedbacks and assesses the state of knowledge and data of relevance to the problem. QUICKScan uses strongly moderated participatory workshops bringing together a wide range of stakeholders relevant to the policy issue. These moderated workshops jointly build an expert system in a spatially explicit tool using functionality of bayesian belief networks, python programming, simple map algebra and knowledge matrices, with a strong focus on visualization of results. QUICKScan has been applied in 70 different applications in a range of different policy contexts, stakeholders and physical locations. Through these applications participants were able to internalize the knowledge that was usually handed to them in briefs and reports, to develop a joint understanding of the main interactions and their link to impacts and to develop a problem statement and solution space in a reduced lead time. Ultimately, QUICKScan demonstrates another role of science, not solely as a knowledge production, but also facilitating the knowledge consumption.     

钢铁厂铁鳞、铁红基本物性及还原性研究

对钢铁厂铁鳞、铁红的基本物化性能和还原性能进行了研究。结果表明：粒度较粗、全铁较高铁鳞的还原性较好，适于作为优质海绵铁的原料。粒度极细、全铁高且杂质含量很低的铁红还原性也较好，适于作还原铁粉生产的原料。     

用氟污染桑叶饲养蚕对干茧和丝质量影响的研究

研究表明,桑叶氟污染较重时,干茧和丝的质量受到危害,茧层重、粒茧量和公升茧粒等6项指标均显示干茧质量明显下降;在14项丝质量指标中除清洁度和强伸力外,均有明显氟危害影响.     

Metabolism of benzo[a]pyrene in peroxynitrite/Fe(Ⅲ) porphyrin system

The peroxynitrite/porphyrin biomimetic system was established to investigate the effects of peroxynitrite on benzo[a]pyrene (B[a]P) metabolism. Through the comparison of three model systems consisting of different iron porphyrins, we found that the peroxynitrite/T(p-Cl)PPFeCl system showed the highest catalytic efficiency in the metabolism of B[a]P. We analyzed the B[a]P metabolites produced from this system by RP-HPLC method and firstly identified the formation of nitrobenzo[a]pyrenes which are the special metabolites of B[a]P induced by peroxynitrite.     

山体绕流和尾流区气态污染物输送扩散规律的研究

采用瞬时烟线仪与迪沙(DISA)热线风速仪相结合的方法探测了山体的绕流区和尾流区结构。试验结果表明,山体的绕流和尾流对低架源排放的气态污染物扩散影响甚大,山体绕流可改变烟流的地面浓度分布.结果还表明,我们所用的探测流向的方法较为有效和准确.     

Parental reaction and adaptability to the prenatal diagnosis of fetal defect or genetic disease leading to pregnancy interruption

The objective of the study was to evaluate the psychological reaction of two groups of parents to a pregnancy termination after they had undergone a prenatal diagnostic procedure. The analysis involved interviews with a study group of 76 patients who were at risk of giving birth to a child with a genetic disease or defect and a comparison group of 124 who had a pregnancy termination after a major anomaly had been detected by routine ultrasound and who were not at known risk for a genetic disease. Only patients in the study group had received counselling before the prenatal diagnosis and were aware that the fetus could be affected. The overall reaction of the comparison group was one of shock, denial of fetal abnormality, and guilt over ‘abandoning the fetus’. A feeling of guilt was expressed by patients in the comparison group (73 per cent versus 29 per cent) in the period immediately following the interruption. One-third of patients in both groups felt obliged to undergo a therapeutic abortion. More patients in the study group than in the comparison group expressed the need to see a psychiatrist at the time of the study (19 per cent versus 7 per cent) and viewed future pregnancies as a replacement for the lost pregnancy (63 per cent versus 19 per cent). The recommendations of the study focus on information sessions to personnel, nursing support, analgesia during the expulsion period, an atmosphere of respect that should be present at the time that the fetus is viewed, the anticipation of mourning, and the long-term follow-up of the couple to ensure that counselling for future pregnancies and psychological support are provided when needed.     

油田化学添加剂对污水处理系统腐蚀行为的影响

目的明确净水剂、絮凝剂、助凝剂、缓蚀剂对污水处理系统腐蚀行为的作用效果。方法通过工艺流程分析、腐蚀形貌观察、腐蚀产物成分分析、腐蚀失重测试等手段,分析污水处理系统腐蚀原因,考察油田化学添加剂对SSF污水处理系统腐蚀行为的影响。结果输送介质中溶解的二氧化碳、高浓度氯离子、氧是导致SSF净化装置内腐蚀的主要原因。分别添加质量浓度为150、0.3、60 mg/L的净水剂、絮凝剂、助凝剂后,动态腐蚀速率可从1.8544 mm/a降到0.6674、0.8627、0.3530 mm/a,静态腐蚀速率可从1.2515 mm/a降到0.9565、0.9474、0.6256 mm/a。添加160 mg/L缓蚀剂,动态腐蚀速率从1.8544 mm/a降低到0.0822 mm/a,静态腐蚀速率从1.2515 mm/a降低到0.0238 mm/a。同时添加净水剂、絮凝剂、助凝剂三种药剂,动态腐蚀速率为0.7672 mm/a,静态腐蚀速率为0.8742 mm/a;同时添加净水剂、絮凝剂、助凝剂、缓蚀剂四种药剂,动态腐蚀速率为0.3069 mm/a,静态腐蚀速率为0.0263 mm/a。结论添加缓蚀剂能有效控制SSF污水处理系统内腐蚀。污水处理用净水剂、絮凝剂、助凝剂对腐蚀有一定抑制作用。在动态条件下,净水剂、絮凝剂、助凝剂降低了缓蚀剂的缓蚀效果,在静态条件下,三种添加剂对缓蚀剂的缓蚀效果影响较小。     

清江水布垭水库水环境容量计算

结合清江水布垭库区水文监测资料,水功能区划,采用相关的水环境容量计算模型,测算了清江水布垭库区的理论水环境容量,进而计算了其有效水环境容量,结果表明：清江流域水布垭库区的理论水环境容量分别为：COD58782．8t／a,NH3-N1598．8t／a,TN2763．5t／a,TP1381．8t／a。有效水环境容量分别为：COD45715．4t／a,NH3-N1359t／a,TP2349t／a,TN1174．5t／a。     

Discordant findings in chorionic villus direct preparation and long term culture—mosaicism in the fetus

Prenatal cytogenetic study of chorionic villi showed a discrepancy between a normal female karyotype 46,XX in the direct preparation after short-term incubation, and a 45,X karyotype in the long-term culture. The subsequent amniocentesis revealed a normal karyotype in three cultures and a 45,X/46,XX mosaicism in one culture. Cytogenetic analysis of chorionic villi after termination of the pregnancy showed a normal karyotype in the direct preparation and a 45,X/46,XX mosaicism in the long-term culture. Fetal lymphocytes showed normal karyotypes, whereas fibroblast cultures revealed a 45,X/46,XX mosaicism.     

Prenatally diagnosed portocaval shunt and postnatal outcome: a case report

Congenital absence of the portal vein (CAPV) is a rare anomaly in the form of a portocaval shunt, whereby the intestinal and splenic venous drainage bypasses the liver and drains directly into the systemic circulation. We report a case of CAPV diagnosed prenatally after the recognition of a dilated umbilical vein draining directly into a large inferior vena cava (IVC). The IVC then drained into the right atrium of a dilated, hyperdynamic heart. The ductus venosus could not be identified. Repeated postnatal scans showed a gradual disappearance of venous lakes in the region of the porta hepatis and a clear drainage of the splenic vein to the left renal vein and the superior mesenteric vein to the IVC. From birth up to twelve months follow-up there was no evidence of liver dysfunction, encephalopathy or liver lesions. Copyright © 2004 John Wiley & Sons, Ltd.