The State Key Lab of Urban Water Resource and Environment (HIT), School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin, People's Republic of China.
Environ Geochem Health. 2014 Feb;36(1):131-43. doi: 10.1007/s10653-013-9524-0. Epub 2013 Apr 23.
The spatial and temporal distributions of polycyclic aromatic hydrocarbons (PAHs) in the Songhua River, Harbin, China, were investigated. Seventy-seven samples, 42 water and 35 sediment samples, were collected in April and October of 2007 and January of 2008. The concentrations of total PAHs in water ranged from 163.54 to 2,746.25 ng/L with the average value of 934.62 ng/L, which were predominated by 2- and 3-ring PAHs. The concentrations of total 16 PAHs in sediment ranged from 68.25 to 654.15 ng/g dw with the average value of 234.15 ng/g dw, which were predominated by 4-, 5- and 6-ring PAHs. Statistical analysis of the PAH concentrations shown that the highest concentrations of the total PAHs were found during rainy season (October of 2007) and the lowest during snowy season (January of 2008). Ratios of specific PAH compounds, including fluoranthene/(fluoranthene + pyrene) (Flu/(Flu + Pyr)) and phenanthrene/(phenanthrene + anthracene) (An/(Ant + PhA)), were calculated to evaluate the possible sources of PAH contaminations. These ratios reflected pyrolytic inputs of PAHs in Songhua River water and a mixed pattern of pyrolytic and petrogenic inputs of PAHs in the Songhua River sediments. Ecotoxicological risk levels calculated for PAHs suggested that there were individual PAHs, which can less frequently cause biological impairment in some samples, but no samples had constituents that may frequently cause biological impairment. Total toxic benzo[a]pyrene equivalent of ΣcPAHs varied from 10.03 to 29.7 ng/g dw and from 0.36 to 1.92 ng/g dw for total toxic tetrachlorodibenzo-p-dioxin equivalent. The level of PAHs indicated a low toxicological risk to this area.
本研究调查了中国松花江哈尔滨段多环芳烃（PAHs）的时空分布。于 2007 年 4 月、10 月和 2008 年 1 月采集了 77 个水样（42 个）和 35 个沉积物样。水样中总多环芳烃浓度范围为 163.54-2746.25ng/L，平均值为 934.62ng/L，以 2-3 环多环芳烃为主。沉积物中总 16 种多环芳烃浓度范围为 68.25-654.15ng/g dw，平均值为 234.15ng/g dw，以 4-6 环多环芳烃为主。PAHs 浓度的统计分析表明，雨季（2007 年 10 月）多环芳烃浓度最高，雪季（2008 年 1 月）最低。计算特定多环芳烃化合物的比值，包括荧蒽/（荧蒽+芘）（Flu/（Flu+Pyr））和菲/（菲+蒽）（An/（Ant+PhA）），以评估 PAH 污染的可能来源。这些比值反映了松花江水中多环芳烃的热解输入，以及松花江沉积物中热解和生源输入混合模式的多环芳烃。多环芳烃的生态毒理学风险水平表明，个别多环芳烃可能在某些样品中引起较少的生物损伤，但没有样品的组成可能经常引起生物损伤。ΣcPAHs 的总毒性苯并[a]芘等效物（B[a]P eq）范围为 10.03-29.7ng/g dw，总毒性四氯二苯并对二恶英等效物（TCDD eq）范围为 0.36-1.92ng/g dw。PAHs 的水平表明该地区存在低毒理学风险。
