According to the relationship between organic pollutants concentration in river water environment and the influential factors , a rbf model has been used to applied to prediction of organic pollutant concentration of water environment based on the field observation data 根据河流有机污染物的浓度与其影响因素之间存在的映射关系，以实际监测数据为基础，建立了一个水环境有机污染物浓度预测的径向基函数网络模型。
Then , two aspects of energy conservation in tunnel ventilation system are attained . one is the lessening of pollutant length needed to be removed ; the other is using the inertial action of piston wind to remove pollutant 然后，在满足卫生标准的前提下，根据不同时刻隧道内污染物浓度分布，得到在两个方面会带来隧道通风系统较大的节能，一是需要排除的污染段长度减少，另一方面是充分利用隧道内气流的惯性作用排出污染物。
It takes much less time to regulate rules by using the above method than the traditional one . in addition , membership functions are adjusted by using fuzzy neural network based on back propagation ( bp ) algorithm , so they match for the rules better and a more reasonable fuzzy combination is got 然后改变交通流模型，减少基准排放量等参数，在获得的新模糊组合下进行仿真，结果表明污染物浓度在控制目标附近波动，并且尽可能接近它，控制效果很好。
These equations are verified by the measure data in nantong section in yangtse river , and the results are satisfied . on the base of the vertical mixing law , the part depth homogeneous mixing 2d numerical model has been developed , and it was used in the concentration field calculation . by use of the measure data of rbodemine - b tracer in yangtse river estuary , the comparison of value calculated with data measured has been made 该模型去掉了传统的全场水深平均二维模型污染源一出排放口便在水深方向上均匀混合的假设，而将计算水域划分为污染物浓度在垂向上达到部分水深均匀混合及全水深均匀混合两个区域，并将上述有关部分水深均匀混合及全水深均匀混合的基本规律的研究成果应用该模型中。
Methods according to the completed time , ornament group ( 150 offices ) was divided into 5 groups ( 2 month group , 2 ~ 4 month group , 5 ~ 8 month group , 9 ~ 11 month group , 12 ~ 18 month group ) end concentiation of air pollutants in these offices was determined . 50 offices after decoration over 60 months were regarded as control group and the concentration of indoor air pollutants was determined 方法根据装修竣工时间，装修组选择2个月以内、 2 ~ 4月、 5 ~ 8月、 9 ~ 11月、 12 ~ 18月的办公室共150间，对照组选择装修5年以上的办公室50间，对空气中甲醛、氨、苯、氧污染物浓度进行测定，并对办公室装修材料进行调查。
Abstract : non - spot pollution source was analyzed qualitively and quantitatively on the basis of experiment data of pollution density variation during raining and flood process . the experiment result is in agreement with the observed reality . a calculation method for non - spot pollution source was presented 文摘:利用雨洪过程中污染物浓度变化的试验资料，对非点源污染进行了定量和定性分析，指出非点源在雨洪过程中的作用特点与试验成果有很好的一致性，提出了一种粗略测算次雨洪非点源量值的方法。
It has been found that simulated results are in good agreement with experimental results . airflow distribution and contaminant removing capability in different cases are compared and some suitable ventilation modes are suggested . moreover , simulation of vortex ventilation with electrical floor heating has also been made and the results could be used as an essential reference in life 除进行现场实测外，本课题对实验中各工况的气流分布以及污染物浓度场均做了模拟，经与实验结果对比，确定计算模型正确，比较各工况的气流分布和排污换气效果，建议合理的送风方式。
The paper , by using the technology of gis and the method of systems engineering , analyzed the development situation of regional society and economy , the natural physical conditions , the situation of pollutant , and density distributing characteristics of pollutant , then set up the echoing relationship between pollute source diffusion and quality of air environment , which could make controlling index of pollution source discharging be closely linked with the quality of environment 本研究采用gis技术，利用系统工程的方法根据区域社会经济发展状况、自然地理条件、污染源状况及污染物浓度分布特征进行综合分析研究，研究建立了污染源扩散与大气环境质量的响应关系，将污染源排放控制指标与区域的环境质量直接挂钩。
