污染

By the early days of 20 century, the proportion of negative ion in the aerosphere is 2 to 1, however basis on the recently data, the proportion just opposite become 1 to 2, this is attributed by the pollution of the air, water and other kinds of contamination.

这都是归因於人为因素对大自然迫害所致，像是空气污染、水源污染以及其他的有害污染之故。

DOAS can be used not only to the measurement of air pollutants near the surface, but also to the measurement of column density of air pollutants, even in the global monitoring of air pollution by satellite instruments.

这种方法不仅可以用在大气污染气体浓度的近地面测量上，还可以用来测量大气污染气体的柱浓度，以及用到卫星仪器对大气污染状况的全球测量上。

Although iron chips has been used widely as a soil amender and as an active material of permeable reactive barrier, there are few reports for remedy heavy metal contaminated soil especially for mercury contaminated soil.

应用工厂废弃物—铁屑做原料，探讨不同铁屑投加量对修复不同土壤类型、不同程度汞污染土壤的能力，并与修复水体汞污染作了对比；另外，首次将淋滤法与国际上新兴的土壤、地下水修复技术-PRB技术结合，研究其修复土壤汞污染的效果。

Rainbow pink, Vetiver grass, and Indian mustard were used in this study to test the remediation of the Cd, Zn, and Pb-contaminated soil. The objectives of this study are to assess the effect of applying EDTA on the phytoremediation of metals-contaminated soils and to assess the interactions among three metals in multiple metals-contaminated soils. Different applying methods with same amounts of EDTA are also used in this study to assess their effect on the metal concentration in the shoot of plant and on reducing the potential risk of groundwater contamination.

本研究於受镉、锌及铅污染的坋质黏土土壤中种植五彩石竹、培地茅及印度芥菜，利用此三种植物植生复育受多种重金属污染的土壤，污染土壤的镉、锌及铅浓度分别为20、500及1，000 mg/kg，评估施用EDTA对於促进植生复育的效果，并以镉、锌及铅浓度分别为10、100及1，000 mg/kg分别配制不同重金属污染土壤，研究三种重金属间交互作用对於植物累积重金属的影响，并评估以相同的EDTA施加总量分一至四次施用对植物累积重金属及降低地下水污染的风险的效果。

Environmental emergency is different from general pollution in its substantial outburst momentarily and its irregular outfalls.

突发性环境污染事故不同于一般的环境污染，它没有固定的排放方式及途径，是瞬时、大量地排放污染物质的恶性污染事故。

If you live both near the freeway and in an area of high air pollution, our results suggest that you're getting, in a sense, a doubling of the effect. Both the regional pollution levels that the children are breathing as well as the air that they are breathing that's coming right out of the tile pipe.

我们的研究结果显示，如果孩子们居住的地方既离高速公路不远而空气污染又特别严重，那么从某种意义上讲，他们受空气污染的危害是双重的：他们呼吸的空气已被当地污染源污染，而直接从车辆排出的尾气又会对其造成二次污染。

Organic fouling was the main reason which induced the decrease of membrane flux of C/MF process with ferric salt as a coagulant. Irreversible membrane fouling of C/MF process with aluminium sulphate as a coagulant was much severe and was the main component of membrane fouling.

膜阻力计算结果表明，无机污染阻力所占比例很小，有机污染是铁盐混凝微滤工艺膜比通量下降的主要原因，铝盐工艺的不可逆污染较为严重，是膜污染的主要组成部分。

Based on the available knowledge of pollution ecology of mangrove combined with the data on tideland pollution in Guangdong Province the paper conducts a scientific judgment on whether some polluted tidelands in this Province can be sued for establishing mangrove plantations or not so as to provide a scientific guideline for selecting the species to suit a tideland or selecting a tideland to suit the species in constructing ecological and public welfare mangrove system along the coast of the Province at pre .

以现有的红树林污染生态学知识为依据，结合广东省潮间带滩涂污染状况的调查资料，对其中某些地点的潮间带是否可以营造红树林作出科学的判断，从而为广东省当前建立生态公益红树林体系选树适地和选地适树提供参考，同时阐明在污染潮间带营造红树林需要采取的科学步骤和提出急需解决的一系列科学问题以及建立红树林污染造林学分支学科的初步设想。

To study the effects on the body of animals after incorporation of 3H-TdR and its mechanism, the laws of distribution A retention and absorbed dose in blood , thymus, spleen, femur, heart, lung,kidney, liver, brain , spermary , small intestine and muscle were detected by liquid scintillation counter after 3H-TdR was injected into the tail vein of mouse; the process of dynamic incorporation of in the lymphocytic cell nucleus of blood , thymus , spleen and the nucleus of femur was monitored; the absorbed dose in the cell nucleus was estimated; the influence to RNA"s synthesizing and cell"s survival was observed using the technology of CLSM; A segment of Egr-1 gene was cloned with reverse transcriptase- polymerase chained reaction, the influence to the expression of Egr-1 gene in the spleen cells was observed.

为了探讨有机结合氚内污染对生物机体的影响及其作用机理，本课题应用均相液体闪烁测量技术研究了氚标记胸腺嘧啶核苷(~3H-TdR)经尾静脉注入小鼠机体后，在血液、脑、胸腺、心脏、肺脏、肝脏、脾脏、肾脏、小肠、睾丸、肌肉和股骨共12种组织器官的生物动力学分布规律及其吸收剂量；应用纸片法液体闪烁测量技术研究了~3H-TdR内污染在外周血、胸腺和脾脏淋巴细胞及骨髓细胞的动态滞留规律，估算了细胞核的吸收剂量；应用共聚焦显微镜观察了~3H-TdR内污染对脾细胞核酸合成及其存活率的作用，应用反转录PCR技术研究了~3H-TdR内污染对脾细胞早期生长反应基因-1(Egr-1)转录表达的影响。

Results showed that among 18 sampling sites, 3 sites were not polluted yet, 11 slightly polluted, and 4 moderately polluted, and that main pollutants in the region were F, Cl, Pb, Cd, As and DDT.

土壤面源污染水、土综合评价结果表明：18个样点中有3个为无污染，11个为轻度污染，4个为中度污染。点源污染土壤综合评价结果表明：该区主要污染物为F、Cl、Pb、Cd、As及DDT。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了