唐山市空气中SO2与TSP污染状况分析

分析了唐山市从1988年至1992年大气中SO2和TSP的污染状况和变化规律，取得对该市环境管理的科学依据。     

盐酸付玫瑰苯胺若干性质讨论

盐酸付玫瑰苯胺是三苯甲烷类染料，分子中存在的共轭体系使其具有以下特性：１．本身带色；２．随介质的ｐＨ变化产生显著的颜色效应，ｐＨ值越高，颜色越深，ｐＨ值越低，颜色越浅；３．对光和水洗的坚牢度较差；４．可发生重氮化反应；５．杂质使其颜色加深。     

绵阳市环境放射源分布规律

对绵阳市的环境放射源基本情况进行了分析，弄清了放射源的品种、数量。摸索出放射性核素及Ｘ射线装置在地域、行业和剂量方面的分布规律，揭示出环境放射性管理工作的重点。     

大气细菌,霉菌数量与风速相关性初探

通过对大气细菌数量、霉菌数量与风速相关性的研究,得出齐市地区冬季气候寒冷,无相关性;春季气候干燥,风沙大,有相关性;雨后大气细菌数量与风速无相关性,大气霉菌数量与风速相关。     

用蚕豆叶尖微核技术筛选对环境污染物敏感品种

为了筛选蚕豆叶尖微核监测技术敏感材料,以二甲苯为污染物,对甘肃产的10个蚕豆品种进行了测试。结果表明,蚕引8号微核出现率与二甲苯诱变剂浓度成正比,平均微核率差异极显著,是监测评价二甲苯污染的敏感品种。     

萃取-催化氧化光度法测定生物体中H2O2含量研究

提出萃取-催化氧化光度法测定生物体中H2O2含量的新方法.用稀土催化H2O2产生羟基自由基以氧化二苯基碳酰二肼,生成红色二苯基碳酰腙,其最大吸收波长为563.0nm;当二苯基碳酰二肼浓度一定时,△A563与H2O2含量呈量效关系.在0～30μmol/L H2O2 含量范围内,该法能简单、快速、精确地测定生物样品中H2O2实际含量.     

气相色谱法测定蔬菜中菊酯类农药

以等量混合的丙酮和石油醚为提取剂,石英毛细管色谱柱分离,电子捕获检测器检测的气相色谱法测定蔬菜中氯氰菊酯、氰戊菊酯、溴氰菊酯农药残留。以保留时间定性,外标法定量,3种菊酯农药的检测限分别为0.013mg/kg、0.010mg/kg、0.035mg/kg,相对标准差均<7%,加标回收率在75%～87%之间。该法较简便,满足了蔬菜食用安全性的鉴别要求。     

炉排型城市生活垃圾焚烧炉排气中二

选择四种规模不同的炉排型生活垃圾焚烧炉,分别对其排放烟气中的二     

氨基酸法现场快速测定废水中的磷酸盐

通过磷酸盐与钼酸盐、氨基酸反应使样品呈淡蓝色,讨论了在事故现场快速测定水中磷的方法。试验表明方法灵敏,操作简单快速。检测范围0～15mg/L。     

SPATIAL ANALYSIS AND EUTROPHICATION ASSESSMENT FOR CHLOROPHYLL a IN TAIHU LAKE

Spatial structure analysis and kriging analysis have been identified to be useful tools in illustrating the spatial patterns of variables. Taihu Lake is one of the largest fresh water lakes in China, and has suffered serious eutrophication in recent years due to the rapid economic development and growing environmental pollution in the Taihu Catchment. In this paper, spatial structural analysis, kriging interpolation and eutrophication assessment were carried out for chlorophyll a in the lake. Studies show that spherical model could be applied to fit all experimental variograms. Positive nuggets were observed for three directions except NE–SW direction. The variograms show some anisotropy with anisotropic ratio falling within 1.76. The spatial structural patterns of chlorophyll a in the lake were affected by factors such as distribution of pollution sources, water flow and wind. Two-dimensional ordinary block kriging was applied for interpolation process. An eutrophication assessment map was also made based on a water-quality evaluation standard. Results show that the content of chlorophyll a in Taihu Lake was quite high. The whole lake has suffered serious eutrophication. However, the eutrophic situation varied in space. Higher contents of chlorophyll a appeared mainly in the northern part of the lake.