水质污染

Marine benthos are characterized by narrow activity and special territory distribution and can be used to indicate the quality of water and the polluted condition of sediments, which plays an important part in the biologic indication of marine pollution.

海洋底栖动物活动性小、地区性强，可以较好地反映水质和底质的污染状况，在海洋污染生物学指标中具有特别重要的意义。

Regional development occupies large land, develops lots of contents, relates to multifields including industry, construction, business and civicism, so it is necessary to identify its influence on nature environment such as air, groundwater quality, surface water quality and hydrological condition, sound, soil, plants, topographty and social environment such as population, traffic, economic structure. The countermeasures of carring through circular economy, controlling pollution sources, planning industrial structure scientifically, distributing reasonably, implementing cleaner production and total quantity control should be taken to promote regional sustainable development.

区域开发具有较大的不确定性，并且占地面积大、开发的内容广、性质复杂、建设周期长，通常的区域开发都有可能涉及到工业、城建、商业、人居、市政等多个领域的开发活动，所以区域开发必须结合区域开发的特征，准确识别其可能对区域内及其周边的空气环境、地下水质量、地表水水质及水文条件、声环境、土壤、植被、地形地貌等自然环境和人口、交通、经济结构等社会环境等产生的影响，并采取发展循环经济，减少污染生成的源头控制措施；科学规划产业结构，合理布局的预防性措施；源内达标、区域集中控制的污染治理措施；实施清洁生产、总量控制，推进区域环境与经济的持续发展。

For shallow of the water, any effluence came from outer can fluent the water of lake, the pollution of the water came from sediment will begin.

引入Wc的概念，将污染浓度输移率的表达式进行简化，从而推导出简化后的包含底泥污染的水平二维水质模型。

According to the Ministry of Agriculture Environmental Quality Supervision, Inspection and Testing Center of Jiayin County, three years of continuous monitoring results Jiayin County green soybean integrated regional soil pollution index is far less than O.7, grades are level, the atmospheric integrated index of less than O. 6, air quality level, without any pollution of water quality of water, soybean production in line with the green standards, the current has been made in A grade green food mark the right to use green food Jiayin County soybean acreage of 35 million mu, output reached 35,000 tons, including fat, high (22%), protein (42%) is the development of Jiayin County, the county economy's pillar industries.

根据农业部环境质量监督检验测试中心对嘉荫县三年的连续监测结果，嘉荫县绿色食品大豆种植区域土壤综合污染指标远远小于O.7，等级属于一级，大气综合指数小于O.6，大气质量为一级，水质属无任何污染的优质水，生产的大豆符合绿色标准，目前已经取得了A级绿色食品标志使用权，嘉荫县绿色食品大豆种植面积35万亩，产量达3.5万吨，含脂肪高（22％）、蛋白高（42％），是发展嘉荫县县域经济的支柱产业。

The control of heavily polluted river in Suzhou was tested by Ipomoea aqutica on soilless floating beds.

摘 要：采用浮床无土栽培技术，在苏州重污染河道上种植水蕹菜以控制重污染水体水质。

Source water is prevalently polluted in recentyears, which has been a serious problem of the field about water pollution controland protection.

水源水质的普遍污染已成为水环境污染控制与水资源保护领域的突出问题。

The paper analgses nitrobenzene and benzene in polluted water of TongJiang section,TongJiang Dong Gang section and Bacha section of songHuaJiang and HeiLongJiang river.

本文通过对双苯污染带流经松花江和黑龙江的同江断面、同江东港断面及八岔断面监测分析，对同江段水质受硝基苯污染的状况作出了科学的分析评价。

A study on heavy metal pollution of water,bottom mud of river, and agricultural land soil was conducted in lower reaches of the smeltery. It indicated that heavy metal pollution in lower reaches of smeltery changed regularly and a mathematical pattern was suggested.

摘要研究冶炼厂下游河道水质、河底污泥、农田土壤的重金属污染状况，明确了冶炼厂下游环境的重金属影响的变化规律，提出了冶炼厂下游土壤重金属污染的数学模型。

With the land use change and the enhancement of human activity, the groundwater pollution index rises from the indirect recharge area via the direct recharge area to the discharge area. The same variation happens from upper reaches to lower reaches in Daxin river basin, a typical karat area in the east of Jinan spring basin where the patterns of land use and human activity changes apparently. There is a close relationship between the groundwater and land use change and human activity.

伴随土地利用方式的改变和人类活动强度的空间变化，地下水质从间接补给区、直接补给区到泉水排泄区，单项污染指数和综合污染指数依次升高；具有典型代表性的泉域东部大辛河流域，从上游、中游到下游，地下水污染物的浓度也渐次升高，且愈往下游污染物浓度增幅愈大，显示出与土地利用方式和人类活动的密切相关性。

According to the heavy metal content ,the quality of the flocculated samples and the water samples after flocculation was evaluated by National Standard. The results showed that the heavy metal pollution was most serious in Spring s sullages , then was in Summer 、 Autumn、 Winter in sequence;the water quality in Lianyungang、 Xiexinggang was best in Summer, then Winter、 Autumn and Spring in sequence, there was little difference of water quality in Ancient Canal、 Hengcaolugang and Hongze Lake .

对絮凝前后泥样和水样中的重金属分别根据国标进行了评价，不同的季节，污染最严重的是春季淤泥，然后依次为夏季、秋季、冬季；连云港、协兴港地区的水质在夏季最好，其次为冬季、秋季、春季；古运河、横草路港、梅梁湾、洪泽湖水质的季节性变化并不大。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。