污染物质

Based on the theoretical framework of the leakage and spread of such poisonous and harmful substances as glycol and acraldehyde, this paper advances the graphic simulation of GIS of poisonous and harmful substances.

以石化企业乙二醇、丙烯腈装置产生的有毒、有害物质泄漏、扩散和污染范围的理论模型为根据，提出有毒、有害物质的地理信系统扩散图形模拟方法。

Article 24 Units that cause environmental pollution and other public hazards shall incorporate the work of environmental protection into their plans and establish a responsibility system for environmental protection, and must adopt effective measures to prevent and control the pollution and harms caused to the environment by waste gas, waste water, waste residues, dust, malodorous gases, radioactive substances, noise, vibration and electromagnetic radiation generated in the course of production, construction or other activities.

第二十四条产生环境污染和其他公害的单位，必须把环境保护工作纳入计划，建立环境保护责任制度；采取有效措施，防治在生产建设或者其他活动中产生的废气、废水、废渣、粉尘、恶臭气体、放射性物质以及噪声、振动、电磁波辐射等对环境的污染和危害。

Units that cause environmental pollution and other public hazards shall incorporate the work of environmental protection into their plans and establish a responsibility system for environmental protection, and must adopt effective measures to prevent and control the pollution and harms caused to the environment by waste gas, waste water, waste residues, dust, malodorous gases, radioactive substances, noise, vibration and electromagnetic radiation generated in the course of production, construction or other activities.

第二十四条产生环境污染和其他公害的单位，必须把环境保护工作纳入计划，建立环境保护责任制度；采取有效措施，防治在生产建设或者其他活动中产生的废气、废水、废渣、粉尘、恶臭气体、放射性物质以及噪声、振动、电磁波辐射等对环境的污染和危害。

The watershed's worst problem is nutrient pollution, which is caused by the overabundance of the nutrients, nitrogen and phosphorus.

分水岭面临更严重的问题，来自营养物的污染，这些营养物污染源自营养物质、和磷的过量排放。

The results revealed that the condensable oAMCs with relatively higher molecular-weight possess greater sticking capability or potential, while those with relatively lower molecular-weight generally have greater adsorption rate at the initial exposure stage.

研究结果显示较高分子量之凝结性oAMCs具有较大之吸附能力；而较低分子量之凝结性oAMCs则在曝露初期具有较高之吸附速率，故在短曝露时间内，其吸附沈积量将大於较高分子量之凝结性oAMCs，因此在微污染的控制上，较低分子量之凝结性有机物质，将成为短时间曝露时主要污染控制对象。

And some suggestion have been made in the use of Eichhornia Crassipes on water purification.",,"

349，&周元清&，&张丽萍&，&凤眼莲在污水净化作用中的初步探讨&，&The Research on the Function of Eichhorina Crassipes in the Treatment of Wastewater&，&凤眼莲污水净化机制&，&Eichhornia Crassipes Wasterwater Purification mechanism&，&随着经济的发展、工农业废水的排放，水体被大量污染，人们用不同的水生植物来净化污水，但实验结果表明，凤眼莲的根系能吸收有机物及其它物质，形成生物动态平衡，该生物具有耗能少，处理效果好、且美化环境的特点，它在污水净化中效率比较理想，文章综述了凤眼莲对氮、磷、重金属、BOD、COD，PH值及有机物等各类污染物的清除作用及在污染治理中的应用实践，同时对凤眼莲在废水处理和治理方面提出了相应的展望和建议。&，

Because the core mass of the AGB star is remarkably large at low metallicity.

对于AGB星初始质量小于3M_☉且初始轨道距离较远的双星系统，白矮星不能从受污染的星上吸积充足的物质，因此不能形成AIC，其伴星只受到AGB前身星的污染，从而形成s-过程元素超丰的星。

Of particular interest are:Toxic or biologically disruptive impacts of anthropogenic chemicals and by-products;Natural toxins and their impacts;Biotransformation and metabolism of toxigenic compounds, food chains for toxin accumulation or biodegradation;Assays of toxicity, endocrine disruption, mutagenicity, carcinogenicity, ecosystem impact and health hazard;Environmental and public health risk assessment, environmental guidelines, environmental policy for toxicants.

包括人为因素造成的污染；自然因素造成的污染，以及它们的破坏作用；生毒物质的生物转化和新陈代谢，导致毒素积累和生物降解的食物链；毒性、内分泌损害、诱变、致癌、生态系统影响和健康危机；为毒性环境和公众危机评估、环境指导、环境政策。

Based on the PHOSFLOW model, China's P societal metabolism is characterized by high intensive input of resource and imported chemical fertilizers, low efficiencies of material productivities and nutrient recycling, high ratio of water pollutant loads and wastes accumulation, strongly materialization of critical eco-restructuring indicators, and the most intensive P load to water of livestock production.

研究结果表明，我国磷代谢体系的整体结构特征表现为矿物资源和进口化肥输入强度大、物质生产效率和养分循环效率低、污染排放率和废物累积率高，养殖业排放污染占进入水体总负荷较大比例，关键性生态化指标呈强烈物质化趋势。

In order to deal with WEEE and POHS instructions, AOV has become China's State General Administration of Quality Supervision,"Detection of Hazardous Substances Working Group," and the Chinese Ministry of Information Industry,"Electronic Products Pollution Control Standard Working Group," the director of a member of the joint domestic and foreign industry, academia, research with such enterprises, to start the relevant standard of research and revision, in particular the urgent need to accelerate the development of industrial materials, processes, terminology, testing methods and experimental methods and other basic standards; research and the establishment in compliance with international regulations and China's national conditions of electronic electrical equipment pollution control standards, and better serve the community and give something back to society!

为了应对WEEE和POHS指令，AOV已成为中国国家质监总局《有害物质检测方法工作组》和中国信息产业部《电子产品污染防治标准工作组》的主任成员，将联合国内外产、学、研、用等企事业单位，展开相关的标准研究和修订工作，特别是加快制定产业急需的材料、工艺、名词术语、测试方法和实验方法等基础标准；研究和建立符合国际条例和中国国情的电子电气设备污染防治标准体系，更好地服务社会，回馈社会！

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。