%0 Journal Article
%T Effect of Antecedent Dry Weather Period on Urban Storm Runoff Pollution Load<br>2次降雨间隔时间对城市地表径流污染负荷的影响
%A LI Li-qing
%A YIN Cheng-qing
%A KONG Ling-li
%A HE Qing-ci
%A <br>李立青
%A 尹澄清
%A 孔玲莉
%A 何庆慈
%J 环境科学
%D 2007
%I 
%X Twelve storm events were surveyed at Shilipu catchment in Wuhan City through three-year monitoring regime. The flow discharges, total suspended solids (TSS), chemical oxygen demand (COD), total nitrogen (TN), and total phosphorus (TP) in runoff were measured to study the mechanism of urban stormwater runoff pollution. The relationship between the event pollution load and the antecedent dry weather period was identified to discuss the influence of the urban surface sanitation management, operation of sewer pipe maintenance and rainfall characteristics on the urban stormwater runoff pollution. It was found that the antecedent dry weather period and runoff amount were the important determining factors in the generation of urban stormwater runoff pollution. The event pollution load was positively correlated to the antecedent dry weather period between two rainfall events (R2=0.95, p<0.01). It was the most important hydrological factor influencing the events pollution loads. The best regression equation to estimate pollution load for storm events was developed based on the antecedent dry weather period and runoff depth. Source control including improving urban street sweeping activities and operation of sewer pipe maintenance should be made to reduce the amount of available pollutant over the dry days.It is important alternative to control urban stormwater runoff pollution for Hanyang District.
%K urban storm runoff
%K pollution loads
%K antecedent dry weather period
%K runoff depth
%K street sweeping activity
%K Hanyang District<br>城市地表径流
%K 污染负荷
%K 2次降雨间隔时间
%K 径流深
%K 地表卫生管理
%K 汉阳地区
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=EBA860D3B521E946&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=F3090AE9B60B7ED1&sid=CE509777249FF025&eid=B7FFAC52F43C6AF4&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=21