Estimation of the Annual Flux of Polycyclic Aromatic Hydrocarbons in Lake Suwa
Estimation of the Annual Flux of Polycyclic Aromatic Hydrocarbons in Lake Suwa
复制标题
诹访湖多环芳烃年通量估算
DOI：
10.5985/jec.17.649
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Y. Ikenaka
中科院分区：
文献类型：
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作者：
Y. Miyabara;Y. Ikenaka
在本研究中，我们估算了日本诹访湖多环芳烃 (PAH) 的流入和流出负荷。通过测量溪流流量和湖水中悬浮固体 (SS) 浓度的变化来估算 PAH 流入和流出负荷。结果表明，SS 浓度随着水流流量的增加而增加。经计算，该湖年（2004年3月至2005年2月）SS流入量和出水量分别为8.9×106 kg和7.6×106 kg。进水和出水负荷之间的质量平衡表明，有1.3×106 kg SS 沉积到湖中。 SS湖中Σ9PAHs（菲、芘、屈、苯并[e]芘、苯并[b]荧蒽、苯并[k]荧蒽、苯并[a]芘、二苯并[a,h]蒽、苯并[ghi]苝）的总量变化为230±120克/湖（平均值±SD）；最大量超过 500 克/湖，这是在 2004 年 5 月和 10 月观察到的。具体而言，对于苯并[a]芘，SS 湖中的总量为 14±7 克/湖。对流入诹访湖和通过釜口门流出的 Σ9PAH 总量的估计表明，Σ9PAH 值分别为 8.6 千克/年和 3.5 千克/年。 Σ9PAHs 流入和流出之间的质量平衡表明，大约 5.1 kg/年的 Σ9PAHs 随 SS 沉积到湖中。本研究中计算的诹访湖中多环芳烃的年通量与先前研究中根据沉积物岩心估计的多环芳烃的沉积通量一致（4千克/年）（Ikenaka等人：Environ. Pollut., 138, 530-538 (2005)）。 5月21日、10月9日和10月21日大雨期间PAHs流入负荷显着增加，约占全年流入量的27%。这些结果表明，当暴雨导致河水流量增加时，大量PAHs流入湖泊。
In the present study, we estimated inflow and effluent load of Polycyclic Aromatic Hydrocarbons (PAHs) in Lake Suwa, Japan. Estimation of PAHs inflow and effluent load were performed by measuring changes in stream flow and concentration of suspended solids (SS) in the lake and river water. Results showed that the concentration of SS increased with stream flow. Annual (March 2004 to February 2005) inflow and effluent load of SS at the lake were calculated as 8.9×106 kg and 7.6×106 kg, respectively. The mass balance between inflow and effluent load indicated that 1.3×106 kg of SS were sedimentated to the lake. The total amount of Σ9PAHs (Phenanthrene, Pyrene, Chrysene, Benzo[e]pyrene, Benzo[b]fluoranthene, Benzo[k]fluoranthene, Benzo[a]pyrene, Dibenz[a,h]anthracene, Benzo[ghi]perylene) in lake SS varied by 230±120 g/lake (average±SD); the maximum amount exceeded 500 g/lake, which was observed in May and October 2004. Specifically, for Benzo[a]pyrene the total amount in lake SS was 14±7 g/lake. Estimation of total Σ9PAHs flowing into Lake Suwa and out through Kamaguchi Gate indicated Σ9PAHs values of 8.6 and 3.5 kg/yr, respectively. The mass balance between Σ9PAHs inflow and outflow indicated that approximately 5.1 kg/yr of Σ9PAHs were sedimentated with SS to the lake. The annual flux of PAHs in Lake Suwa calculated in the present study agreed with the deposition flux of PAHs in a previous study estimated from sediment cores (4 kg/yr) (Ikenaka et al.: Environ. Pollut., 138, 530-538 (2005)). Inflow loads of PAHs markedly increased in May 21, October 9, and October 21 when heavy rains occurred, occupying approximately 27 % of the annual inflow. These results indicated that large quantities of PAHs flowed into the lake when river flow increased by heavy rain.
富营养化湖泊“诹访湖”多环芳烃污染特征
DOI：
--
发表时间：
2007
期刊：
Journal of Environmental Chemistry 17
影响因子：
--
作者：
Y. Ikenaka;A. ateno;Y. Miyabara
通讯作者：
Y. Miyabara
日本诹访湖沉积物核心二恶英和多环芳烃的来源和流入量估算。
DOI：
--
发表时间：
2005
期刊：
Environmental Pollution 138
影响因子：
--
作者：
Ikenaka;Y.;Eun;H.;Watanabe;E.;Kumon;F.;Miyabara;Y
通讯作者：
Y