表层沉积物主要污染因子为有机质；
The primary pollutant of surface sediment is Organic matter.
二次离子污染是影响厦门环境空气质量的主要因子。
The pollution of secondary ions is the major influence factor for Xiaman air quality.
废水未经沉淀，夹渣排放；某稀土厂废水是污染负荷的主要因子。
The reason is that waste water was discharged before the precipitation.
基于吸入因子概念，建立了污染物排放造成的人体暴露的计算方法。
Intake fraction is a new concept applied in assessing human health effect of pollutants.
基于吸入因子概念，建立了污染物排放造成的人体暴露的计算方法。
Intake fraction is a new concept applied in assessing human health effect of pollutants.
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