2) main pollutant
主要污染物
1.
Using the day-to-day observation data of seven stations in the outskirts of Zhengzhou in 2006,the spatial and temporal distribution characteristics of PM10,SO2 and NO2 are analyzed,and the correlation between main pollutants and meteorological condition is also summarized.
选用郑州市城郊7个代表站2006年可吸入颗粒物PM10、二氧化硫和二氧化氮等主要污染物逐日浓度监测资料,分析了郑州市这3种主要空气污染物的时空分布特征及其与气象条件的相关性,并利用2001-2006年均浓度资料分析了主要污染物浓度的变化趋势。
2.
The seasonal change characteristics of main pollutants including COD(cr),BOD5,NO3-N,NO2-N and volatile hydrozybenzene in the surface water of Zhuozhang River Valley in Shanxi were studied by water samples from 21 monitoring sections in low-flow period(May),high-flow period(August)and mean-flow period(October) from 1996 to 2000.
通过对浊漳河流域1996年～2000年21个监测断面的枯水期(5月)、丰水期(8月)和平水期(10月)地表水采样分析,研究了主要污染物CODcr、BOD5、NO3-N、NO2-N和挥发酚的季节动态变化特征。
3) Main pollutants
主要污染物
1.
By using the environmental monitoring data of late years, this paper expounds the varying tendency be-tween environmental indexes of main pollutants and discharge capacity of pollution sources in Taiyuan reach of Fenhe Riv-er, and makes preliminary analysis of relativity between ihem.
利用近年来的监测数据阐明汾河太原段污染现状及其主要污染物环境指标与污染源排放量的变化趋势,并对二者相关性进行初步分析,应用秩相关系数法对其作出进一步分析和检验,明确得出两者显著相关的结论,为汾河太原段污染治理提供科学依据。
补充资料：主要
1.把握事物的关键。 2.指事物中关系最大，起决定作用的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条