环境工程学报2025，Vol.19Issue(6)：1371-1381,11.DOI:10.12030/j.cjee.202412027
城市雨水口恶臭污染释放规律与影响因素
Release patterns and influencing factors of odor pollution from urban stormwater inlets
摘要
Abstract
Odor pollution from urban stormwater inlets in China has become a severe environmental issue,affecting public health and quality of life.To address this problem,this study investigated the odor levels,spatiotemporal variations in odor intensity,and influencing factors of odor pollution in stormwater inlets across three functional areas:dining zones,commercial-office zones,and residential zones.The results indicate that the degree of odor pollution in stormwater inlets follows the order:dining zones＞commercial-office zones＞residential zones.In dining zones,88.7％ of stormwater inlets exhibited odor pollution at level 4 or higher,indicating strong odor emissions.The odor intensity in dining and commercial-office zones was significantly higher in summer compared to other seasons,and daytime odor pollution was more pronounced than at night.The content of food waste(r=0.647,P＜0.01)and temporarily stored wastewater(r=0.845,P＜0.01)in stormwater inlets showed a significant positive correlation with odor intensity.Additionally,the concentrations of COD(r=0.88,P＜0.01),SO42-(r=0.896,P＜0.01),and TN(r=0.851,P＜0.01)in temporarily stored wastewater were significantly positively correlated with odor intensity,while dissolved oxygen(DO)concentration(r=-0.913,P＜0.01)showed a significant negative correlation.The content of food waste and temporarily stored wastewater was significantly positively correlated with COD,SO42-,and TN concentrations,and significantly negatively correlated with DO concentration.The primary sources of odor in stormwater inlets are volatile sulfides and volatile organic acids produced by the degradation of organic matter under low dissolved oxygen conditions.These compounds contribute to odor emissions at rates of 85.01％ and 2.89％,respectively.关键词
雨水口/恶臭气体/挥发性硫化物/成因解析Key words
stormwater inlet/odorous gas/volatile sulfides/cause analysis分类
资源环境引用本文复制引用
姜昊,卢金锁,宋光,丁文韬,陈兴都..城市雨水口恶臭污染释放规律与影响因素[J].环境工程学报,2025,19(6):1371-1381,11.基金项目
国家自然科学基金资助项目(51778523) （51778523）
陕西省重点研发项目资助项目(2019ZDLSF06-04) （2019ZDLSF06-04）
