污染

One of the pollution sources of the hydrargyrum is the fluorescent lamp. The universal application of the fluorescent lamp produces a lot of pollutions of public greenbelt in the ice and snow day of haerbin.

荧光灯是汞的污染来源其中之一，而哈尔滨冰雪节对它的广泛使用，造成了许多公共绿地污染。

Cyanide ion is one of the most toxic inorganic anions one can find, but cyanide or hydrogen cyanide are used in many industries.

氰化物为环境中公认的无机剧毒物，对环境的污染尤其是水资源的污染已成为一个严重的问题。

Because of its characteristic of extensive sources,serious toxicities,high-level pollution and long-term duration, formaldehyde is considered to be one of the most common pollutants. And the study of formaldehyde has become a lot and difficult spot of environmental and hygienical fields.

甲醛以其来源广，毒性大，污染水平高，污染时间长等特点，已经成为我国最主要的室内空气污染物之一，也是世界环境卫生领域的热点和难点。

Results toxic test and ld 50 test showed that nata de coco strain was free from toxin.quality control system has not been established and sanitary facilities were incomplete in most fac-tories.totally54samples of nata de coco were hygienically determined.the pollution level of elements of pb,as,nitrate and nitrite was low,but chromium was relatively higher.no aflatoxin b 1 and pathogenic bacteria were detected.the residual hydrogen peroxide were detected from15out of the18samples detected.

结果 菌种毒力试验和急性毒性试验（ld 50 ）显示为无毒物；多数企业未建立卫生管理制度，卫生设施不完善；采集54份椰果样品做卫生学检测，铅、砷等重金属元素、硝酸盐、亚硝酸盐污染水平较低，铬含量相对较高，未发现黄曲霉毒素b 1 和致病菌的污染；18份椰果样品中有15份残留过氧化氢。

Light pollution is a kind of novel, incompletely known environmental pollution at present.

光污染是一类新的、尚不完全被人们所认识的环境污染。

In consideration of the indeterminateness in spacetime distribution and pollution sources of sudden water pollution and on the basis of the time effectiveness of pollution control and remediation and the principle of decrease of pollution losses to a minimum, an analysis was made of the present situation of pollution accidents by flexible description of the pollution information, realizing a highly efficient simulation of the impacts of sudden pollution in rivers.

根据水污染事故发生、发展具有诸多时空和污染源类型不确定性的特点，以及污染事故控制与处理的时效性和最大限度减少损失的原则，采用弹性组织出事现场信息的方法，分析污染事故的基本状况，实现河流水污染突发事故影响状况的高效模拟。将GIS与水污染模型技术相结合，开发了适合长江三峡水环境决策管理的水污染事故模拟子系统。

According to the state standard of ocean sediment quality, threshold effective level and state standard of soil quality, the total contents of heavy metals in sediments from infall port were higher than those from the other parts of the lake which showed a combined pollution, the main pollutants being Cu, Cd, Ni and Zn.

根据国家海洋沉积物质量一类标准、生态危害临界值和国家土壤质量一级标准，湖泊进水口底泥中重金属的复合污染较严重，其它区域沉积物中的重金属全量也有不同程度的超标现象，底泥中污染重金属主要为Cu、Cd、Ni、Zn。

Ecological risk index of heavy metals in the sediment exhibited a medium pollution risk of combined heavy metals in infall port and low risk in the purse-net agricultural region.

根据国家土壤质量一级标准计算的底泥重金属潜在生态风险性指数表明，进水口区域为中等污染风险，而湖泊的围网养殖区处于轻度污染风险。

The SARS virus origin which obviously differs from the theory of out space origin and the theory of wildlife origin was theoretically discussed based on principles of pollution evolution ecology,pathogenesis and infectant characteristics of SARS,and some relevant experimental evidence. It emphasizes on the fact that increasingly combined pollution in China provides a substantial basis for virus evolution.

针对当前广为流传的SARS病毒"太空起源说"和"野生动物来源说"两种理论，本文根据污染进化生态学原理和SARS病毒发病传染特征，以有关实验结果为科学依据，阐述了SARS病毒的起源问题，指出：我国当前环境日益严重的复合污染为SARS致病病毒的产生提供了适宜的外部生态条件和物质基础，SARS致病病毒可能起源于多个病毒的基因重组或融合，更可能是一种来自于感冒病毒进化而形成的超级感冒病毒。

The inquisitional method of air pollution and human health in Shenyang is discussed.

0引言随着工业化和城市化的快速发展，大气污染，尤其是城市大气污染已经成为世界性问题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。