海水总碱度、溶解氧、氨氮、亚硝酸盐氮的检测与分析  

Determination and Analysis of Alkalinity,Dissolved Oxygen,Ammoniarc Nitrogen and Nitrite Nitrogen of the Seawater

作　　者：孙会芳[1] 刘占广[1] 张瑞华[2] 

机构地区：[1]天津科技大学天津市海洋资源与化学重点实验室,天津300457 [2]天津科技大学理学院,天津300457

出　　处：《盐业与化工》2010年第5期11-14,共4页Jounral of Salt and Chemical Industry

基　　金：天津科技大学科学研究基金资助(20080213);天津科技大学引进人才科研启动基金资助(20070421)

摘　　要：在天津港近岸海域选取七个有代表性的站位,从不等深度处采集水样进行水质分析,结果表明:海水总碱度的范围2.32 mmol/L^2.80 mmol/L,表层海水夏季和秋季总碱度的平均值均大于10 m,13 m和14 m深度处相应季节总碱度平均值,这里可能是不太显著的低碱度层,平均深度大约为12 m;海水溶解氧范围6.358 mg/L^10.233 mg/L,说明该区域水体自净能力较强,有机物污染程度很低或无污染;海水中氨态氮的范围3.621μg/L^254.2μg/L,春季较高,且大多数站位超过0.2 mg/L,说明已经形成氨态氮污染,对鱼虾会造成一定的危害;海水中亚硝酸盐氮的范围1.351μg/L^174.5μg/L,且夏季较高,会对鱼虾产生轻微毒害作用。Tianjin coastal waters in the selection of the representative formation, seven samples were collected in different depth, the water samples were carried through water quality analyzing, the result shows that the total range of seawater basically 2.32 - 2.80 mmol/L, summer and fall are greater than the average total basically 10, 13 and 14 meters deep place corresponding total average, alkalinity season here may be the indistinctively lower alkalinity layer, the average depth of approximately 12 meters; Dissolved oxygen＇ s range is 6. 358 - 10. 233 mg/L, the regional self-purification stronger, organic matter pollution degree very low or uncontamination; Seawater ammoniac nitrogen range is 3. 621 -254.2 μg/L, spring is higher, and most stance higher than 0.2 mg/L,has been formed to fishes and shrimps, ammonia nitrogen pollution can cause certain hazards; The scope of seawater nitrite nitrogen 1. 351 -174.5 μg/L, and summer is higher, fishes and shrimps may be mild adverse.

关 键 词：海水 总碱度 溶解氧 氨态氮 亚硝酸盐氮 

分 类 号：X832[环境科学与工程—环境工程]