污染物质

These parameters are basic data for simulating groundwater movement and solute transport in Beijing City.

这些参数是北京市地下水运动和污染物质运移模拟的基础数据。

The feasibility study was made on bathing wastewater which was reclaimed with the treatment process by sponge iron and reused to the artificial lake.

研究了以海绵铁处理洗浴废水回用于人工湖景观用水工艺的可行性，讨论了流量对洗浴废水中LAS等污染物质的处理效率的影响，同时探讨了海绵铁柱中填料的损耗和再生问题以及海绵铁柱出水除铁问题，并对海绵铁处理洗浴废水中LAS的机理作了初步探讨。

It has moderate concentrations of pollutants such as sulfur dioxide and/or chlorides

它是中等浓度的污染物质，例如二氧化硫和/或氯化物

In the US, a milestone event was the passage of the Federal Water Pollution Control Act in 1972 {PL 92-500 "to restore and maintain the chemical, physical, and biological integrity of the Nation's waters" with the ultimate goal of zero discharge of pollutants into navigable, fishable, and/or swimmable waters.

加上最终目标实现污染物质的零流量进入可航行的，可钓鱼的，还有可游泳的水里。

In the industrial wastewater, there is 216.1 thousands tons of COD, which is 23.9% fewer than last year; discharge of venomousness pollutants (cyanide, arsenic, mercury, lead, cadmium, sexavalent chrome, volatile hydroxybenzene) is 92.85tons, 30.76% fewer than last year; oil discharges is 900tons, 1% fewer than last year; ammonia-nitrogen discharges is 8.6 thousands tons.

在工业的废水中，有 216.1 数千吨的雪，是 23.9%少于去年；有毒污染物质(氰化物，砷，水银，领引，镉， sexavalent 铬，挥发性 hydroxybenzene)的解除是 92.85 吨，30.76%少于去年；油解除是 900 吨，1%少于去年；氨-氮的解除是 8.6 数千吨。

It was emphasized that GB3838-2002 not only need to pay attention to the full treatment of wastewater and rainwater but also the proper disposal of treated wastewater which meet the national discharge standard GB18918-2002 but still contain significant amount of pollutants if compare with the national surface water quality standard GB3838-2002. To the brooky region of Jiang-Zhe Plain, the discharged pollutant loads still significantly exceed the environmental capacity of the receiving waters even if all treated wastewater meet the first grade B limits of GB18918-2002, and the water pollution problem still cannot be really eliminated.

通过比较分析，我国现行的城镇污水处理厂污染物排放标准GB18918-2002和地面水水质标准GB3838-2002，明确提出，相对于这一区域的地面水环境质量而言，不但雨污水必须得到充分有效的净化处理，达标排放的污水中也仍然含有总量不容忽视的污染物质；对于江浙平原河网地区，即使全部城市污水都达到GB18918-2002中一级B的要求，排放的污染物负荷仍然会明显超过受纳水体的环境容量，水污染问题仍然难以真正消除；达标处理水的处置与利用问题值得特别的关注与探讨。

At the same time, each kind of contaminative material density and temperature, the value of pHs influence the working state of the Ultra-Filter very much directly.

同时，各种污染物质浓度以及温度、pH值对超滤膜的运行工况影响都产生着直接的影响。

The main pollutants from this chemical plant is perchloroethane, pentachloroethane, hexachlorobutadiene and HCB, and such pollutants are present in the soil with high densities, some as high as 1%- 95%, of which the perchloroethane is near the purity of the corresponding product, and especially this part of the soil contains comparatively high-density persistent organic pollutant HCB, which makes it suitable to be disposed of together with other soils. Therefore it is suggest that this part of soil should be separately dug out and transported outside of the site.

化工厂的主要污染物质是六氯乙烷、五氯乙烷、六氯丁二烯和六氯苯，土壤中上述污染物的浓度非常高，有些达到1%至95%，其中六氯乙烷接近相应的产品的纯度，特别是这一部分含有较高浓度的持久性有机污染物六氯苯，不利于与其它土壤混合处理，建议将这一部分单独开挖出来并运出场外。

This article will have the initiative significance and motive effect for the study of indoor chemical pollutant of house of my country.

本论文的研究将对我国住宅室内化学污染物质问题的研究，起到具有先导性的借鉴意义和推动作用。

The results demonstrate that LAS can be biodegraded by microorganisms in the water and that the percentage of degradation of LAS was more than 95 % after 26 d.

表面活性剂在造福人类的同时，也带来了一系列的环境问题，我国环境标准中将表面活性剂列为第二类污染物质。

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。