污染因子

对Cu、Hg和Pb来说，降水是地表水中的一个污染因子。

To Cu , Hg and Pb , precipitation is a pollution factor of surface water .

近江牡蛎的Cu污染因子质量分指数最高达6.01。

Among them , the highest quality fraction of pollution factor in the oysters was 6.01 times of the limit standard .

流域的主要污染因子为TN、TP和COD。

The main pollution factors are TN , TP and COD .

Ba星系统的星风吸积及污染因子

Wind Accretion of the System of the Ba Star and the Contamination Factor

确定了转炉炼钢的重点污染因子是粉尘、烟尘和SO2等。

The dust , soot and SO2 were identified as the key pollutant factors .

通过调查沿河企业废水排放情况及水质特征，认为主要污染因子是pH值和盐度；

By investigating the wastewater discharge and wastewater quality in the enterprises along the river , pH value and salinity were the main pollution factors .

气田开发对浅层地下水环境的影响主要来自采输气田水，主要污染因子为COD、硫化物和氯根（Cl-）。

The main pollution sources of shallow groundwater are gas-field water in the gas-field exploitation process . The pollutants mainly include COD , sulfides and Cl - .

分析了西安市的环境污染因子与城市机动车拥有量的关系，通过回归分析的方法确定了其相关性显著的相关因子NOX，验证了理论分析的正确性。

In addition the research analyzes the relation between environmental factors and the amount of urban automobiles in Xi ' an ; finds the prominently relative factor-NOx , by regression analysis ; proves the theoretical analyses .

污染因子中以PM2.5、PM10影响最大，而SO2、NOx的影响相对较轻。

Among the polluted factors , PM 2.5 and PM 10 have the greatest impact , while SO 2 , NO x have relatively sight impact .

水污染因子有常规污染指标和特征污染物氟、砷及重金属离子；大气污染因子为SO2、硫酸雾和颗粒物。

The water pollution factors include conventional pollutants , characteristic pollutants fluorine , arsenic and heavy metal ion ; The pollution factors of air are sulfur dioxide , sulfuric acid mist and particulate .

根据对延河河水连续5a的水质污染因子测定数据，运用模糊数学方法对延河的丰水期、平水期和枯水期的水质现状进行了评价。

Based on water quality monitored data of Yanhe River for 5 years , water quality of abundant , usual and low water season was evaluated .

首先，通过静水试验，以浊度（主要污染因子）、pH、水温为监测项目，确定最佳混凝剂及其最佳投药量，并对其进行经济性评价。

Firstly , through the still water experiment , taking SS ( main pollution factor ), pH , and temperature as the monitoring items , determinates the best coagulating drugs and the best using dose , and carries on an economical appraisal to it .

结果表明：长江万州段主要的重金属污染因子为Cd，生态风险影响因子顺序为：Cd>Zn>Pb>Cu>Cr。

It is revealed that the main pollution factor is Cd . The sequence of ecological risk is Cd > Zn > Pb > Cu > Cr , and the potential ecological risk is Cd > Pb > Cu > Zn > Cr.

因COD、TN、TP等主要污染因子持续输入，河网主干流生态功能已严重退化，威胁辽东湾近海水质。

The mainstream river ecosystem function has been severely degraded by continuous input the COD , TN , TP and other major pollution factors , and threat to the Liaodong Bay and further into offshore water quality .

PM（10）是市近年来影响青岛市环境空气质量的主要污染因子，其次为SO2。市区冬季SO2污染负荷系数最大，污染比较严重。

PM_ ( 10 ) is the main pollution factor influencing Qingdao environmental air quality , the next is SO2 . In winter , the pollution load modulus of SO_2 is the most and pollution occurred is more severe comparatively .

空气颗粒物（PM10、PM2.5）、气体污染物（SO2、NO2、O3）及挥发性有机物是主要污染因子。

The primary pollutants are ambient particulates ( PM 10 , PM 2.5 ), Gaseous pollutants ( SO 2 , NO 2 , O 3 ) as well as volatile organic compounds .

本文主要介绍EM（有益微生物菌群）技术在糖厂废水中的应用，着重讨论各污染因子的污染指数及在整个EM菌处理过程中各污染因子的去除率。

In this paper , the application of EM ( Expedient Microbes ) technique for the liquid waste disposal in sugar refineries is introduced , and the pollution factor and its eliminating rate in the process of EM technique are discussed .

利用灰色系统理论对烟台市区大气环境污染因子（SO2、NOx、TSP）数据序列和大气质量综合指数数据序列进行灰色关联度分析，并预测了未来5年内烟台市区大气环境质量状况。

The Grey Correlation Analysis of atmospheric environment pollution factors ( SO2 , NOx and TSP ) in air quality index in Yantai was conducted with the Grey System Theory and the atmospheric environmental quality in future five years in Yantai downtown was predicted .

研究数据表明：该区As、Cu、Zn、Cd、Cr、Pb等6种重金属在土壤中的含量均低于背景值，而土壤中Hg含量严重超标，为该地区主要的土壤污染因子。

The data obtained indicated that the contents of Cu , Pb , Zn , Cr , Cd , and As in the soils were lower than their regional background values . However , Hg content in the studied soils greatly exceeded its background value , demonstrating significant soil pollution .

由模型中各污染因子的权重判断出可吸入颗粒物（PM10）为保定市空气质量的制约因子，且二氧化氮（N02）的权重逐步上升。

From the model of pollution factors determine the weight of respirable particulate matter ( PM10 ) air quality for the Baoding constraints factor , and nitrogen dioxide ( NO2 ) and gradually increase the weights .

以《土壤环境质量标准》（GB15618-1995）中土壤自然背景值标准为对照进行评价，全区各采样点的各项污染因子存在不同程度的超标现象，以铬和汞较为严重。

Comparing with the soil natural background value standard of " Soil environmental quality standard " ( GB 15618-1995 ), it is appraised that every pollution factor of each sampling point of whole district exceeds standard in varying degrees . In which chromium and mercury is relatively serious .

造成水质的主要污染因子是氨氮；

The main polluting element in water are ammonia and nitrogen ;

膜污染因子识别与凝胶层结构分析

Identification of Membrane Fouling Factors and Structure Analysis of Cake Layer

主要污染因子是总硬度、悬浮物；

The main polluted factors are general hardness and SP ;

我国河流水质评价污染因子选择方案探讨

The suggestion of selecting pollution items on water quality evaluation

潜在危害性指数法在筛选污染因子中的应用

Application of Potential Hazardous Index Method to Selecting Pollutant Factor

灰色模型在确定关键污染因子中的应用

Application of grey model in distinguishing the key pollution factors

大气环境质量关键污染因子及变化趋势的研究

Study on Air Environment Quality : Key Pollution Factors and Change Tendency

表层沉积物主要污染因子为有机质；

The primary pollutant of surface sediment is Organic matter .

改性土壤对矸石溶出液中主要污染因子的吸附特征

Adsorption characteristic of modified soil to the main pollution factors of Gangue Leaching