Ma Ying-qun, Zhang Lei, Zhao Yan-min, Qin Yan-wen, Pan Xiao-xue, Cao Wei, Liu Zhi-chao, Yang Chen-chen
Huan Jing Ke Xue. 2015 Nov;36(11):4013-20.
A total of 13 surface water samples were collected from sewage outfalls and 3 main tributaries ( Hunhe River, Taizi River and Haicheng River) of the Daliao River to clarify the pollution characteristics of various species of nitrogen and phosphorus in July 2013, respectively. The results showed that the concentrations of DON in the Hunhe River, NO3(-)-N in the Taizi River, NH4(+) -N, PO4(3-) -P and DOP in the Haicheng River were higher than others. In water samples from the 3 main tributaries of the Daliao River, the TN and TP contents were above the national environmental quality standards for surface water (GB 3838-2002, grade V) except for the TP that was classified as grade IV in the Taizi River. The percentages of various N species showed that NO3(-) -N was the major N species in the Taizi River and Haicheng River, meanwhile DON was the major N species in the Hunhe River. The percentages of various P species showed that TPP was the major P species in the Hunhe River and Taizi River, and DOP was the major P species in the Haicheng River. TN content was above the national environmental quality standards for surface water (GB 3838-2002, grade V) in sewage outfalls. But TP content was classified as grade IV to above grade V. And the concentrations of NH4(+) -N, TN and TP in sewage outfalls of Shachang and Gangjian were higher than those in other sewage outfalls. The percentages of various N species in sewage outfalls showed that DIN was the major N species in sewage outfalls. There were higher level of TN and TP content in the Daliao River than those of tribtaries, and NO3(-) -N and TPP were the major N and P species, respectively. In general, the nutrients analysis of tributaries, sewage outfalls and the Daliao River showed that nutrients of the Daliao River were affected by sewage outfalls. And the effect was significant and non-ignorable.
2013年7月，分别从排污口以及辽河的3条主要支流（浑河、太子河和海城河）采集了13份地表水样本，以明确各类氮磷的污染特征。结果显示，浑河中的溶解有机氮（DON）、太子河中的硝酸根氮（NO3(-)-N）、海城河中的铵根氮（NH4(+) -N）、磷酸根磷（PO4(3-) -P）和溶解态有机磷（DOP）浓度高于其他河流。在辽河3条主要支流的水样中，总氮（TN）和总磷（TP）含量均高于国家地表水环境质量标准（GB 3838 - 2002，Ⅴ类），太子河的TP含量为Ⅳ类除外。各类氮形态的占比表明，太子河和海城河中的主要氮形态为NO3(-) -N，而浑河中的主要氮形态为DON。各类磷形态的占比表明，浑河和太子河中的主要磷形态为颗粒态总磷（TPP），海城河中的主要磷形态为DOP。排污口中的TN含量高于国家地表水环境质量标准（GB 3838 - 2002，Ⅴ类）。但TP含量为Ⅳ类至Ⅴ类以上。沙厂和钢建排污口中的NH4(+) -N、TN和TP浓度高于其他排污口。排污口中各类氮形态的占比表明，溶解性无机氮（DIN）是排污口中的主要氮形态。辽河中的TN和TP含量高于支流，且主要的氮、磷形态分别为NO3(-) -N和TPP。总体而言，对支流、排污口和辽河的营养物质分析表明，辽河的营养物质受到排污口的影响。且这种影响显著且不可忽视。
