JECFA manipulates food contaminant safety evaluation and risk analysis tasks that submited by FAO/ WHO member states, services to FAO/ WHO food standards.

Introduction and Thoughts on Physical and Chemical Indexes of Food Contaminant Monitoring System

国际食品污染物监测体系理化指标监测介绍及思考

The present development on modeling and application about transport and degradation of chemical contaminant in soil systems is introduced, and further works to be done are discussed.

介绍当前国外对于土壤污染化学污染物传递和演变过程模型化及模型应用工作的进展情况，并给予评述，最后给出关于进一步研究该问题的讨论。

This paper presented some chemical contaminant mass balance models for quantifying food consumption in fish.

介绍了测定鱼类摄食量的几种化学污染物质量平衡模型，包括放射性同位素、持久性有机污染物和重金属质量平衡模型，可为鱼类摄食量研究提供参考。

Introduction to chemical contaminant mass balance models for quantifying food consumption in fish

测定鱼类摄食量的几种化学污染物质量平衡模型

Control of exhaust contaminant of vehicle

车辆排放污染物与控制

Research on on-line monitoring of Dissolved Gas-in-Oil with FTIR spectra Research on continuous on-line monitoring of gaseous contaminant in emission using FTIR spectra

利用FTIR光谱技术进行烟气排放中气态污染物的在线连续监测研究

It can be concluded that OP-FTIR coupled with one-dimensional CT reconstruction can provide the concentration distribution of air contaminant along one single beam path and monitor in environmental and industrial~ hygiene working as an~ alarm system.

可见，OPFTIR与一维CT模型联用，可以给出污染物的单光程浓度分布，该技术应用于工业或环境卫生监测，具有预警作用。

Objective Basing on the non proportional spatial distribution of air contaminant, using spatial analysis methods of Geographic Information System ( GIS) to find out the new way to deal with point based data.

目的根据大气污染物在空间分布不均匀的特点，利用地理信息系统（GIS）空间分析方法，探索优化利用点源数据的新途径。

Indicates that the key problem on the research of kitchen ventilation system is the control technology on the kitchen air contaminant.

指出了厨房排风系统研究的关键问题是对厨房空气污染物的控制。

Discussed the source, the component and the harm on organism of kitchen air contaminant.

讨论了厨房空气污染物的来源、成分及其对人体的危害；

The contaminant source emission rate has greatly influence on the air contaminant concentration.

污染源散发量对室内污染物浓度有着很大的影响，当散发量减少时，室内污物浓度明显降低。

Numerical simulation of the longitudinal distribution of air contaminant in an operating highway tunnel

运营公路隧道空气污染物纵向分布的数值模拟

Study on Share Rate of Vehicle and other Sources of Air Contaminant in Harbin

哈尔滨市空气污染物中机动车及其他源排放分担率的研究

Under the optimum operating conditions, 3# could still keep a high removal rate of the contaminant at the flushing loading with NH3-N and manganese simultaneously, while decreasing the removal of NH3-N to about 60% at the flushing loading with organic matter.

在最佳运行条件下，滤池对氨氮和锰复合污染的抗冲击负荷能力较强，仍保持高效的去除效能，但有机物污染负荷使氨氮的去除效率下降到60%左右。

Using soluble glucose and particulate starch as organic matters in the feeding water, the contaminant removal efficiency was investigated in jar test and the fluidized pellet bed reactor.

分别采用溶解性葡萄糖和颗粒性淀粉作为配水中的有机物，考察了混凝（烧杯试验）及造粒流化床对有机物的去除特性。

This research attempts to provide theory solutions to qualitative estimation and scope the water exchange and contaminant transport between stream and groundwater.

本研究为确定河流与地下水之间水量交换和污染物运移的量值与范围提供解决理论依据。

Numerical Simulation for Water and Non-conservative Contaminant Transport in Soils

水分及非保守性污染物在土壤中运移数值模拟

Models of water and contaminant transport in a compacted clay liner ( CCL), a geomembrane liner and a composite liner were developed to compare the abilities of the three liners to prevent leachates and contaminants from migrating out of the landfills.

为改进填埋场防渗层系统结构设计，建立了压实粘土衬层、土工膜衬层和复合衬层这三种衬层中水分与污染物迁移的数学模型。

Axisymmetric flow for water and contaminant in clay shale

泥质页岩中水和溶质的轴对称流动

Furthermore, industrial construction adjustment, technique improvement and water contaminant treatment should be taken for the protection of water environment and sustainable development of the region.

此外，为保护水环境和实施区域的可持续发展，必须大力调整产业结构，提高产业的技术水平和加大对水环境的治理力度。