兰州西固地区光化学烟雾污染气质模式

以兰州西固地区为研究对象,建立了描述该地区光化学烟雾污染的大气质量模拟模式——柱子模式。将该模式与实测数据进行了比较,结果表明,该模式基本上能够定量地描述当地所发生的光化学烟雾污染的主要污染物的时空分布及形成过程,可为污染评价、预测及污染治理提供依据。     

非线性灰色模型在污染物总量预测中的应用

在前人工作的基础之上介绍了几种修正的ＧＭ（１，１）非线性模型，并以衡阳市１９９０～１９９６年城区污染物总量（ＣＯＤ）的预测为例，探讨了各种模型的应用效果。结果表明：非线性模型的拟合精度更高，具有更加广阔的发展前景。     

产酸脱硫反应器中COD/SO_4~(2-)比制约的群落生态演替规律

通过产酸脱硫反应器的动态试验和配套的静态试验 ,考察致变因子COD/SO2 - 4比制约的乙酸型顶极群落的结构、优势种群的组成和生态演替的规律 ;阐明乙酸型代谢和乙酸型顶极群落是产酸脱硫生态系统的典型特征 ;揭示乙酸型顶极群落内平衡与反馈调节的生理代谢机制 ,并以因变因子 pH值、氧化还原电位和碱度来表征生态演替过程中优势种群的三维实现生态位     

燃煤锅炉除尘脱硫废水处理与循环利用技术

介绍了采用沉灰、沉渣中和、微滤三池毗连的废水处理方法及板式微孔过滤新技术，实现燃煤锅炉除尘脱硫废水封闭循环利用。     

北京市工业废水和城市污水中菊酯类农药残留分析

建立了基于18C固相萃取柱和气相色谱/电子捕获（GC/ECD）分析水体中环境激素类物质--菊酯类农药的分析方法,并对方法的回收率、灵敏度进行了评价,同时分析了北京市七类典型污染点源50个采样点位菊酯类农药的浓度,检出的菊酯类农药包括联苯菊酯、氰戊菊酯、氯氰菊酯和溴氰菊酯,其检出率都较低,低于22%.检出菊酯类农药的浓度范围是0.013～1.246μg/L.该方法对菊酯类农药的回收率达到67.7%～96.2%,检测限为0.010～0.015μg/L.溴氰菊酯在废水排放中的达标率为100%.     

加强能力培养, 提高专业水平——论环境类中专的教学改革

介绍了环境保护中专办学２０年来所取得的成绩及其为环保事业的发展做出的积极贡献，并指出存在的问题．为适应环保事业发展的需要，对环保中专在专业设置、课程设置、教学计划和教材建设方面，均提出改革意见     

“互动式”教学方法在中小学环境教育中的应用

介绍了“互动式”教学方法的特点及其实施计划．通过编写中小学“互动式”环境教育系列教材，培养环保部门教育官员、中小学教师、师范院校师生以及建立教师资源库，从而逐渐把“互动式”教学方法推广到全国中小学环境教育教学计划中．     

造纸行业的清洁生产示范

文章概述了我国造纸行业清洁生产示范项目审计的成果，从环境、经济及清洁生产方案类型等角度对企业推行清洁生产进行了初步分析，提出了存在的主要问题，并就进一步推动造纸行业的清洁生产提出了建议。     

Prenatal diagnosis of congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency by steroid analysis in the amniotic fluid of mid-pregnancy: Comparison with HLA typing in 17 pregnancies at risk for CAH

Amniotic fluid (AF) levels of 17-hydroxyprogesterone (17OHP) and testosterone (T) were determined at 16–17 weeks in 17 pregnancies at risk for CAH and results compared to 75 normal controls. The fetus was predicted to be unaffected in 12 cases on the findings of normal AF levels of both 17OHP and T and the latter allowed a correct prediction of fetal sex in all instances. HLA typing confirmed normality in 12 cases revealing 5 carriers, 5 homozygous normal and 2 indeterminate. Steroid levels of the 2 groups were similar. Three fetuses were predicted to be CAH affected on unambiguously high levels of 17OHP and T (in female only). HLA typing was in agreement, and the diagnosis was confirmed in 2 abortuses and a female newborn by physical and hormonal studies. In the last 2 cases AF levels of OHP and T were normal but HLA (A/B/C) genotypes were identical to the CAH affected siblings. Normal physical and hormonal findings in the 2 aborted fetuses would exclude the possibility of an in utero virilizing form of CAH. The discrepancy could be explained on the basis that the fetuses had an allelic form of 21-hydroxylase deficiency or on the basis of recombination (not fully tested). It is concluded that a fully informative prenatal diagnosis of CAH should not rely entirely on HLA typing but on hormonal studies.