中国海洋大学学报（自然科学版）2025，Vol.55Issue(12)：26-35,10.DOI:10.16441/j.cnki.hdxb.20250042
应用单颗粒质谱解析香港沿海气溶胶中羟甲基磺酸盐的来源及季节变化
Source Analysis and Seasonal Variations of Hydroxymethylsulfonate in Coastal Hong Kong Aerosols:A Single Particle Mass Spectrometry Perspective
摘要
Abstract
Hydroxymethanesulfonate(HMS),an organosulfur compound formed through the aqueous-phase reactions between formaldehyde(HCHO)and sulfur dioxide(SO2),has been increasingly recog-nized as a ubiquitous component of atmospheric aerosols.While existing research in China has predomi-nantly focused on inland northern regions,coastal environments likely exhibit unique HMS pollution patterns and formation mechanisms due to distinct atmospheric processes involving marine-terrestrial interactions.In this study,we present the first systematic investigation of HMS sources and seasonal variability in a suburban coastal site in Hong Kong using Single Particle Aerosol Mass Spectrometry(SPAMS)across winter,spring and summer,combined with backward trajectory analysis.The results showed that nine types of HMS-containing particles were identified,with biomass burning-derived HMS-K particles dominating annual contributions(82%),comprising four subtypes:K_ECOC_S(47%),K_S_N(25%),K_N(5%),and K_Na_N_S(5%).Industrial combustion sources manifested through Fe_rich(10%)and Pb_rich(5%)particles,exhibiting winter-spring predominance.Ship-emit-ted V_rich particles(1%)increased more than four times in summer,synchronized with the enhanced maritime activities.Other HMS-containing particles were mainly from dust sources(K_Ca_S_N,1%)and fireworks and firecrackers sources(Al_K_S_N,1%),both peaking in winter due to seasonal winds and anthropogenic emissions.Air mass trajectory analysis showed that high HMS pollution events were mainly associated with northern biomass burning transport,while marine sources dominated the low pollution period.This study provides new scientific basis and data support for understanding the forma-tion mechanism and pollution characteristics of HMS in the southern coastal region.关键词
羟甲基磺酸盐(HMS)/单颗粒质谱/沿海城市/来源解析/后向轨迹Key words
hydroxymethylsulfonate(HMS)/single particle mass spectrometry/coastal cities/source apportionment/backward trajectory分类
资源环境引用本文复制引用
韩荣荣,吴冠儒,张佑天,王昕烁,李磊,李梅,周振,郁建珍,周杨..应用单颗粒质谱解析香港沿海气溶胶中羟甲基磺酸盐的来源及季节变化[J].中国海洋大学学报（自然科学版）,2025,55(12):26-35,10.基金项目
国家自然科学基金项目(42475119) （42475119）
山东省自然科学基金项目(ZR2024MD016)资助 Supported by the National Natural Science Foundation of China(42475119) （ZR2024MD016）
the Shandong Provincial Natural Science Foundation(ZR2024MD016) （ZR2024MD016）
