Chi Jie, Zheng Yan
School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China.
Huan Jing Ke Xue. 2009 Nov;30(11):3283-7.
Concentrations of phthalate acid esters(PAEs) in waters and aquatic plant, Potamogeton crispus L., were measured from March 29 to May 25, 2008 in the mainstream of Haihe River. The results showed that dibutyl phthalate (DBP) and di(2-ethylhexyl) phthalate (DEHP) were detected in all samples of waters and Potamogeton crispus L.. Concentrations of DBP and DEHP in water samples ranged from 0.35-40.68 microg/L (mean 7.32 microg/L) and 3.54-101.2 microg/L (mean 21.72 microg/L), respectively. Concentrations of DBP and DEHP in Potamogeton crispus L. ranged from 0.007-0.242 microg/g (0.078 microg/g) and 0.163-1.286 microg/g (0.457 microg/g), respectively. Concentrations of DBP and DEHP in Potamogeton crispus L. reached the highest value during Potamogeton crispus L. blooming period and were significantly related to concentrations of DBP and DEHP in waters. PCF values of DBP and DEHP by Potamogeton crispus L. were obviously above 1, and the PCFs value reached the maxima during the early growing period and the minima during the period of decay. Concentration and PCF of DBP were both lower than those of DEHP. Potamogeton crispus L. was an important sink of phthalate acid esters, a kind of hydrophobic organic compounds, because of its abundance in Haihe River.
2008年3月29日至5月25日，对海河干流中的水体及水生植物菹草中的邻苯二甲酸酯（PAEs）浓度进行了测定。结果表明，在所有水体和菹草样本中均检测到了邻苯二甲酸二丁酯（DBP）和邻苯二甲酸二（2-乙基己基）酯（DEHP）。水样中DBP和DEHP的浓度范围分别为0.35 - 40.68微克/升（平均7.32微克/升）和3.54 - 101.2微克/升（平均21.72微克/升）。菹草中DBP和DEHP的浓度范围分别为0.007 - 0.242微克/克（0.078微克/克）和0.163 - 1.286微克/克（0.457微克/克）。菹草中DBP和DEHP的浓度在菹草开花期达到最高值，且与水体中DBP和DEHP的浓度显著相关。菹草对DBP和DEHP的生物浓缩因子（PCF）值明显高于1，且在生长初期达到最大值，在衰败期达到最小值。DBP的浓度和PCF均低于DEHP。由于菹草在海河大量存在，它是邻苯二甲酸酯这种疏水性有机化合物的重要汇。
