中国粉体技术
中國粉體技術
중국분체기술
CHINA POWDER SCIENCE AND TECHNOLOGY
2009年
2期
1-6
,共6页
袁中新%林勋佑%陈昌煚%江森纬%王家麟
袁中新%林勛祐%陳昌煚%江森緯%王傢麟
원중신%림훈우%진창경%강삼위%왕가린
大气悬浮微粒%受体模式%污染源解析%传输路径
大氣懸浮微粒%受體模式%汙染源解析%傳輸路徑
대기현부미립%수체모식%오염원해석%전수로경
suspended particles%receptor model%source apportionment%transportation route
旨在探讨道路旁悬浮微粒之理化成分,并解析其可能的污染来源.悬浮微粒采样作业于2003年5月～2004年1月期间进行,悬浮微粒样本采集时间包括春、夏、秋、冬四季的假日与非假日,所采集的悬浮微粒样本经化学成分分析可得水溶性离子成分与金属元素成分,并透过化学质量平衡受体模式及逆轨迹模式进行污染源解析.测量结果显示,假日的大气悬浮微粒PM10浓度高于非假日,而假日与非假目的总悬浮颗粒则无明显变化.此外,道路旁悬浮微粒PM10主要受非交通源的长程传输与当地的交通源所影响,而总悬浮颗粒则主要源自于附近道路的车行及逸散扬尘.另就悬浮微粒化学成分而言,金属元素成分以Ca、Fe、Al最多,水溶性离子成分则主要为SO42-、NO3-、NH4+等二次污染物.受体模式及逆轨迹模式分析结果得知,污染来源主要为交通污染及道路扬尘,然而,亦有相当部分的污染来自上风处的非交通源.
旨在探討道路徬懸浮微粒之理化成分,併解析其可能的汙染來源.懸浮微粒採樣作業于2003年5月～2004年1月期間進行,懸浮微粒樣本採集時間包括春、夏、鞦、鼕四季的假日與非假日,所採集的懸浮微粒樣本經化學成分分析可得水溶性離子成分與金屬元素成分,併透過化學質量平衡受體模式及逆軌跡模式進行汙染源解析.測量結果顯示,假日的大氣懸浮微粒PM10濃度高于非假日,而假日與非假目的總懸浮顆粒則無明顯變化.此外,道路徬懸浮微粒PM10主要受非交通源的長程傳輸與噹地的交通源所影響,而總懸浮顆粒則主要源自于附近道路的車行及逸散颺塵.另就懸浮微粒化學成分而言,金屬元素成分以Ca、Fe、Al最多,水溶性離子成分則主要為SO42-、NO3-、NH4+等二次汙染物.受體模式及逆軌跡模式分析結果得知,汙染來源主要為交通汙染及道路颺塵,然而,亦有相噹部分的汙染來自上風處的非交通源.
지재탐토도로방현부미립지이화성분,병해석기가능적오염래원.현부미립채양작업우2003년5월～2004년1월기간진행,현부미립양본채집시간포괄춘、하、추、동사계적가일여비가일,소채집적현부미립양본경화학성분분석가득수용성리자성분여금속원소성분,병투과화학질량평형수체모식급역궤적모식진행오염원해석.측량결과현시,가일적대기현부미립PM10농도고우비가일,이가일여비가목적총현부과립칙무명현변화.차외,도로방현부미립PM10주요수비교통원적장정전수여당지적교통원소영향,이총현부과립칙주요원자우부근도로적차행급일산양진.령취현부미립화학성분이언,금속원소성분이Ca、Fe、Al최다,수용성리자성분칙주요위SO42-、NO3-、NH4+등이차오염물.수체모식급역궤적모식분석결과득지,오염래원주요위교통오염급도로양진,연이,역유상당부분적오염래자상풍처적비교통원.
The physicochemical composition and emission sources of sus-pended particles sampled at roadside was investigated. Suspended particles (total suspended particles (TSP) and PM10) were sampled on the weekend and on weekdays during four consecutive seasons. Water-soluble ionic species and metallic contents of suspended particles were further analyzed and used to identify the emission sources of suspended particles. Field sampling of suspended particles indicated that PM10concentration on weekends was higher than that on weekdays, while TSP concentration did not vary much between weekdays and weekend. PMl0 was contributed from the long-distance transportation of non-traffic pollutants as well as the emissions of local road-traffic sources, while TSP mainly related closely to the emissions of local mad-traffic sources. The results from chemical anal-ysis showed that the most abundant metals found in roadside suspended particles were Ca,Fe and Al,while the most abundant ions were SO42-,NO3-、NH4+. In addition, both source apportionment and backward tra-jectories indicated that the major sources contributing to suspended parti-cles sampled at roadside were vehicular emissions and fugitive road dust. However, the upwind non-traffic sources also contributed a noticeable portion of roadside suspended particles.
