He M, Wang H, Lin C, Quan X, Guo W, Yang Z
State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, P R China.
Environ Technol. 2008 Mar;29(3):303-14. doi: 10.1080/09593330802099809.
Organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in surface sediments from 10 sampling sites of the Songhuajiang River were analyzed to evaluate their potential pollution and hazards. Gas chromatography equipped with a 63Ni electron capture detector (GC-ECD) and gas chromatography/mass spectrometer (GC/MS) methods were used, respectively. The total concentrations of 13 OCPs varied from 4.26 to 18.45 ng g(-1). Sigma HCH (alpha-HCH, beta-HCH, delta-HCH, gamma-HCH), sigma DDT (p, p'-DDE, p, p'-DDD, o,p'-DDT, p, p'-DDT) and sigma Cyclodiene (Heptachlor, Aldrin, Heptachlor epoxide, Dieldrin, Endrin) ranged from 2.42 to 7.95, 0.14 to 5.12, 0.55 to 6.01 ng g(-1), respectively. The most dominant pollutant among the OCPs was gamma-HCH with the concentration of 3.4 (0.77 to 7.21) ng g(-1). Total PCB concentrations ranged between 0.59 and 15.93 ng g(-1). Low chlorinated biphenyls (tri- and tetra-) dominated in total PCBs. Positive correlations were observed between the EDDT, sigma Cyclodiene, sigma OCP or sigma PCB and TOC of the sediments (P < 0.05, n = 10). No obvious correlation was observed between the sigma HCH and the TOC of the sediments.
对松花江10个采样点表层沉积物中的有机氯农药（OCPs）和多氯联苯（PCBs）进行了分析，以评估其潜在污染和危害。分别采用配备63Ni电子捕获检测器的气相色谱法（GC-ECD）和气相色谱/质谱联用法（GC/MS）。13种OCPs的总浓度在4.26至18.45 ng g(-1)之间。Σ六氯环己烷（α-六氯环己烷、β-六氯环己烷、δ-六氯环己烷、γ-六氯环己烷）、Σ滴滴涕（p,p'-滴滴伊、p,p'-滴滴滴、o,p'-滴滴涕、p,p'-滴滴涕）和Σ环二烯（七氯、艾氏剂、环氧七氯、狄氏剂、异狄氏剂）的浓度范围分别为2.42至7.95、0.14至5.12、0.55至6.01 ng g(-1)。OCPs中最主要的污染物是γ-六氯环己烷，浓度为3.4（0.77至7.21）ng g(-1)。多氯联苯的总浓度在0.59至15.93 ng g(-1)之间。低氯代联苯（三氯和四氯）在多氯联苯总量中占主导地位。沉积物中EDDT、Σ环二烯、ΣOCP或ΣPCB与总有机碳之间存在正相关（P < 0.05，n = 10）。沉积物中Σ六氯环己烷与总有机碳之间未观察到明显相关性。
