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作 者:张志红[1] 赵五红[1] 梁瑞峰[1] 马效东[1] 白剑英[1] 原福胜[1] 武旭彪[1] 樊婷[1] 杨小林[1] 宋丽红[1]
机构地区:[1]山西医科大学公共卫生学院环境卫生学教研室,太原030001
出 处:《现代预防医学》2007年第2期212-213,217,共3页Modern Preventive Medicine
基 金:山西医科大学学生创新项目基金(2004-24)
摘 要:[目的]了解汾河二库水体现阶段的富营养状况。[方法]通过检测水体的透明度、总氮、总磷、叶绿素-A、藻细胞密度等指标,并通过计算水质营养状态指数(TSI)对其富营养化作出综合评价。[结果]汾河二库枯水期和平水期水样透明度都低于GHZBI-1999《地表水环境质量标准》中的Ⅳ类标准;枯水期TN含量高于平水期,但均低于GB3838-2002《地表水环境质量标准》中的Ⅳ类标准;枯水期和平水期TP含量低于GB3838-2002《地表水环境质量标准》中的Ⅳ类标准;水样中叶绿素-a含量都未超过GHZBI-1999《地表水环境质量标准》中的Ⅳ类标准;TSI(SD)、TSI(TP)都大于50,TSI(chla)小于50;藻细胞总数在枯水期达到5.9×105个/L,明显多于平水期藻细胞总数(2.5×104个/L)。[结论]汾河二库尚未形成富营养化状态。[ Objective] To know about the eutrophic condition of present Fenhe Second reservoir. [ Methods] The eutrophic level of Fenhe Second reservoir was evaluated through measuring transparence, total nitrogen (TN) concentration, total phosphorus (TP) concentration, ehlorephyll-α(Chla) level, total amount of the algal cells and eaeulating water trofie state index (TSI) . [Results] Water transparence in low water period and common water period was lower than the Ⅳ transparence standard of GHZBI-1999 《Surface Water Environment Quality Standard》 ; TN concentration in low water period was more than that in eomnaon water period, and they were lower than the Ⅳ TN standard of GB3838-2002 《Surface Water Environment Quality Standard》 ; TP concentration in two period was less than the Ⅳ TP standard of GB3838-2002 《Surface Water Environment Quality Standard》; Chla level did not exceed the Ⅳ ehlorephyll-α standard of GHZBI-1999 《Surface Water Environment Quality Standard》; TSI(SD) and TS(TP) was both more than 50, TSI(Chla) was less than 50; Total amount of the algal eeUs was 5.9×10^5/L, which was much more than that (2.5×10^4/L) in common water period. [Conclusion] Fenhe Second reservoir has not been formed the eutrophication.
分 类 号:R123.1[医药卫生—环境卫生学]
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