State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
Environ Monit Assess. 2011 Jun;177(1-4):515-26. doi: 10.1007/s10661-010-1652-8. Epub 2010 Aug 17.
Nitroaromatic compounds are known to be hazardous to ecological and human health. To assess the status of nitroaromatic compounds contamination in the main rivers in the important industrial bases of the northeastern China, we collected water, suspended particulate matter (SPM) and sediment samples from 28 sites in the Daliao River watershed and analysed them for eight nitroaromatic compounds by gas chromatography. The total concentrations of eight nitrobenzenes in the water column including aqueous and SPM phases ranged from 740 to 15,828 ng L( - 1), with a mean concentration of 3,460 ng L( - 1). The total concentrations of eight nitrobenzenes in the sediment were 7.47 to 8,185.76 ng g( - 1), with a mean concentration of 921.98 ng g( - 1), and several times higher than those found from the Yellow River in China. 4-Nitrotoluene was the predominant contaminant in the water and sediment of the three rivers of the Daliao River watershed. 2,6-Dichloro-4-nitroaniline was generally dominant in the SPM. The levels of nitroaromatic compounds were different among different sites in the Daliao River watershed, mainly caused by the distribution of pollution sources. No obvious correlation was found between the total concentrations of eight nitrobenzenes concentrations and TOC or the slit-clay content of the sediments.
硝基芳香族化合物对生态和人类健康具有危害性，已广为人知。为了评估中国东北重要工业基地主要河流中硝基芳香族化合物的污染状况，我们采集了大辽河流域 28 个采样点的水、悬浮颗粒物（SPM）和沉积物样本，并用气相色谱法分析了其中 8 种硝基芳香族化合物。水相和 SPM 相中 8 种硝基苯的总浓度范围为 740-15828ng/L，平均值为 3460ng/L。8 种硝基苯在沉积物中的总浓度为 7.47-8185.76ng/g，平均值为 921.98ng/g，是中国黄河中发现的浓度的数倍。4-硝基甲苯是大辽河流域三条河流的水和沉积物中的主要污染物。2,6-二氯-4-硝基苯胺通常在 SPM 中占主导地位。大辽河流域不同采样点的硝基芳香族化合物水平存在差异，主要是由于污染源的分布。8 种硝基苯的总浓度与 TOC 或沉积物的粘土含量之间没有明显的相关性。
