基于K-means聚类的煤炭港区TSP浓度变化及影响因素分析  

Analysis of TSP concentration changes and influencing factors in coal port area based on K-means clustering

作　　者：林翔宇 张艳[1] 封学军[1] 林志端 朱信源 沈金星[2] LIN Xiang-yu;ZHANG Yan;FENG Xue-jun;LIN Zhi-duan;ZHU Xin-yuan;SHEN Jin-xing(Institute of Harbour and Waterway Logistics and Green Development,Hohai University,Nanjing,Jiangsu 210098,China;College of Civil Engineering,Hohai University,Nanjing,Jiangsu 210098,China)

机构地区：[1]河海大学港航物流与绿色发展研究所,江苏南京210098 [2]河海大学土木与交通学院,江苏南京210098

出　　处：《中国港湾建设》2022年第7期1-5,共5页China Harbour Engineering

基　　金：国家重点研发计划项目(2021YFB2600200,2019YFC0409004);国家自然科学基金(51808187);江苏省交通运输科技与成果转化项目(2020Y10);江苏省环保科研课题(2019004)。

摘　　要：为分析煤炭港区大气中的总悬浮颗粒(TSP)浓度的变化特征和影响因素,利用典型煤炭港区2020年度监测数据,基于K-means聚类方法,分析了港区TSP浓度的变化特征;结合港区气象环境特征参数,解析了TSP污染物浓度变化与湿度、风速的相关性。结果表明:港区TSP质量浓度整体上与湿度、风速分别呈正相关和负相关关系,浓度日变化趋势呈“单峰单谷”形式,分别在5:00—7:00和17:00—18:00取得峰值和谷值,在夏、冬季易出现异常波动情况,且表现出6种不同的小时变化规律聚类特征。研究结果可为煤炭港区颗粒物污染防治提供理论支撑。In order to analyze the change characteristics and influencing factors of the total suspended particulate(TSP)concentration in the atmosphere of coal port area,using the monitoring data of the typical coal port area in 2020,based on the K-means clustering method,the change characteristics of the TSP concentration in the port area were analyzed;combining with the characteristic parameters of meteorological environment in the port area,the correlation between TSP pollutant concentration changes and humidity and wind speed were analyzed.The results show that the overall TSP mass concentration in the port area has a positive and negative correlation with humidity and wind speed,respectively.The concentration daily change trend is"single peak and single valley"type,the peak and valley values arrive at 5:00-7:00 and 17:00-18:00 respectively.Abnormal fluctuations are prone to occur in summer and winter.And it shows 6 different clustering characteristics of hourly variation patterns.The research results can provide theoretical support for the prevention and control of particulate pollution in coal port areas.

关 键 词：煤炭港区 TSP K-MEANS聚类 质量浓度变化 

分 类 号：U656.133[交通运输工程—港口、海岸及近海工程] X513[交通运输工程—船舶与海洋工程]