公路径流中悬浮固体和颗粒结合多环芳烃的动态行为

Dynamic behavior of fractional suspended solids and particle-bound polycyclic aromatic hydrocarbons in highway runoff.

作者信息

Aryal R K, Furumai H, Nakajima F, Boller M

机构信息

Department of Urban Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.

出版信息

Water Res. 2005 Dec;39(20):5126-34. doi: 10.1016/j.watres.2005.09.045. Epub 2005 Nov 22.

DOI:10.1016/j.watres.2005.09.045

PMID:16307772

Abstract

A long-term continuous runoff monitoring was carried out in a highway in Winterthur, Switzerland. The total suspended solids (TSS) samples were fractionated into fine (< 45 microm) and coarse (> 45 microm) fraction and their wash-off behavior was studied. The fine and coarse fraction showed different wash-off behaviors. During the runoff the concentration of the fine fraction was less fluctuated compared to coarse. The fluctuation of the coarse fraction was more influenced by TSS concentration. The PAH content measurement in fine fraction showed less fluctuation compared to the coarse fraction. The PAH content in the coarse fraction was found decreasing with increasing the coarse fraction contribution to TSS.

摘要

在瑞士温特图尔的一条公路上进行了长期连续径流监测。将总悬浮固体（TSS）样本分为细颗粒（<45微米）和粗颗粒（>45微米）部分，并研究了它们的冲刷行为。细颗粒和粗颗粒表现出不同的冲刷行为。在径流期间，细颗粒的浓度相比粗颗粒波动较小。粗颗粒的波动受TSS浓度影响更大。细颗粒中多环芳烃（PAH）含量的测量相比粗颗粒波动较小。发现粗颗粒中PAH含量随着粗颗粒对TSS贡献的增加而降低。