關鍵字資料搜尋

"車輛排放細懸浮微粒（PM2.5）調查技術開發""環檢所""環境監測及檢測""The development of the ve

「"車輛排放細懸浮微粒（PM2.5）調查技術開發""環檢所""環境監測及檢測""The development of the ve」於資料集「環保專案摘要資料」由單位「行政院環境保護署」的郭先生所提供，聯繫電話是02-2311-7722#2399，最近更新時間為：2022-01-15 01:13:31。欄位專案登錄碼的內容是"1040476142" ，欄位中文標題的內容是"車輛排放細懸浮微粒（PM2.5）調查技術開發" ，欄位中文摘要的內容是"車輛排氣是現代化都市中空氣粒狀污染物的主要來源之一，因此，針對使用中的機動車輛進行粒狀污染物排放的監測與管制應會是空氣品質得以改善的有效具體作為。本研究著手於使用中的車輛粒狀物即時檢驗方法的建立，其成果將有助於評估政策的發展、環境的改善與國民健康的促進。本研究自行架設PFDS採樣系統，並與歐盟CVS方法進行比對測試，評估其相關性與準確度。並在實驗室中進行濾紙特性對質量秤重法之影響、VPR特性研究、微粒計數器對數量量測法之影響，以及根據實驗結果撰寫車輛污染源細懸浮微粒調查技術操作程序。結果顯示TX40會造成正向誤差並高估採樣結果，使用PTFE材質濾紙可有效降低此誤差。在採樣的過程中增加採樣時的溫度或是稀釋比例能夠有效地降低調理時間，將濾紙放入夾鏈袋中進行秤重則可抑制揮發性物質逸散。本研究開發之PM2.5分徑器搭配冰浴法可同時達到分徑與去除水分之目的。VPR會造成部分微粒小於儀器偵測下限而低估濃度，且車輛排氣中沒有同質凝結的現象發生。而微粒計數器應選擇微粒偵測下限最低之儀器，可避免因不同微粒分布而造成的誤差。PFDS在正確的操作下可取代CVS系統，而質量量測法不夠靈敏，相關性不佳。本研究開發之方法可適用於車輛排氣微粒濃度量測，特點為簡單、方便、可即時採樣且不受揮發性物質影響。其結果與歐盟數目濃度量測法相關性高(R2=0.925)，本研究開發之採樣方法其操作程序、使用方法、系統架設及步驟皆已撰寫完成。" ，欄位中文關鍵字的內容是"細懸浮微粒、移動污染源、粒狀污染物" ，欄位英文標題的內容是"The development of the vehicle PM2.5 measurement technique" ，欄位英文摘要的內容是"The vehicle exhaust is one of the major air pollution sources in the modern cities. To monitor and control the particulate matter emission of in-use vehicles is a critical and important means to improve the air quality. The main purposes of the present study was to develop a real-time, low cost and simple method to measure vehicle exhausted PM. The work might be helpful for environmental policy making and eventually environment improvement. The sampling and measurement system was design to include a chamber adapter connecting to tailpipe, a dehumidifying unit, and aerosol size-selective device, and an appropriate measurement. Aerosol instruments, such as SMPS, CPC, black carbon aerosol monitor (AE51), and filter were used to measure the particle size distribution, number concentration, black carbon concentration and PM mass, respectively. The effects of temperature, humidity, condition time on the filter weighting were evaluated. A high resolution nano-DMA was used to measure aerosol penetration through the volatile particle remover (VPR), as function of aerosol size with the lower limit down to 2.5 nm. The penetration test was conducted using sodium chloride as non-volatile agent to validate the effect of VPR temperature on the aerosol deposition. The change in size distribution and number concentration of motorcycle exhaust particles was then used to determine whether the homogeneous nucleation exited during the cooling down process. The relationship between SPN, mass and AE51 measurements were also evaluated. The results indicated that the PTFE filter was the most appropriate media for sampling particulate matter. The mass decrease due to semi-volatile matter decreased with increasing temperature of the sampling filter holder. The black carbon concentration was not affected by the semi-volatile matter and could be used as an index to infer the mass concentration. The AE51 had a good relationship with the SPN method. The VPR reduced the particle size and resulted in the underestimation of particle number concentration, probably due to some of the particles smaller than 2.5 nm, the lower detection limit of ultrafine condensation particle counter. The homogeneous nucleation was not observed in the motorcycle exhaust. The regression analysis showed a good relationship between PFDS and CVS results of particle number and black carbon measurement. The mass concentration had a poor relationship between these two dilution systems due to the low particle emission. The method developed by this study had advantages of easy, convenient, and real-time measurement and suitable for the vehicle particulate emission. " ，欄位英文關鍵字的內容是"PM2.5, Mobile sources, Particulate matter" ，欄位施政分類的內容是"環境監測及檢測" ，欄位專案類型說明的內容是"科技研究類專案" ，欄位專案計劃編號的內容是"EPA-104-1602-02-02" ，欄位專案年度的內容是104 ，欄位專案經費的內容是"293" ，欄位合約開始日期的內容是2015-03-10 ，欄位合約結束日期的內容是2015-12-31 ，欄位主辦單位的內容是"環檢所" ，欄位承辦人的內容是"黃文俊" ，欄位執行單位的內容是"台灣大學" ，欄位專案主持人的內容是"陳志傑" ，欄位協同主持人的內容是"黃盛修" ，欄位共同主持人的內容是"" ，欄位專案報告下載URL的內容是https://epq.epa.gov.tw/project/filedownload.aspx?fid=120207 。

專案登錄碼

"1040476142"

中文標題

"車輛排放細懸浮微粒（PM2.5）調查技術開發"

中文摘要

"車輛排氣是現代化都市中空氣粒狀污染物的主要來源之一，因此，針對使用中的機動車輛進行粒狀污染物排放的監測與管制應會是空氣品質得以改善的有效具體作為。本研究著手於使用中的車輛粒狀物即時檢驗方法的建立，其成果將有助於評估政策的發展、環境的改善與國民健康的促進。本研究自行架設PFDS採樣系統，並與歐盟CVS方法進行比對測試，評估其相關性與準確度。並在實驗室中進行濾紙特性對質量秤重法之影響、VPR特性研究、微粒計數器對數量量測法之影響，以及根據實驗結果撰寫車輛污染源細懸浮微粒調查技術操作程序。結果顯示TX40會造成正向誤差並高估採樣結果，使用PTFE材質濾紙可有效降低此誤差。在採樣的過程中增加採樣時的溫度或是稀釋比例能夠有效地降低調理時間，將濾紙放入夾鏈袋中進行秤重則可抑制揮發性物質逸散。本研究開發之PM2.5分徑器搭配冰浴法可同時達到分徑與去除水分之目的。VPR會造成部分微粒小於儀器偵測下限而低估濃度，且車輛排氣中沒有同質凝結的現象發生。而微粒計數器應選擇微粒偵測下限最低之儀器，可避免因不同微粒分布而造成的誤差。PFDS在正確的操作下可取代CVS系統，而質量量測法不夠靈敏，相關性不佳。本研究開發之方法可適用於車輛排氣微粒濃度量測，特點為簡單、方便、可即時採樣且不受揮發性物質影響。其結果與歐盟數目濃度量測法相關性高(R2=0.925)，本研究開發之採樣方法其操作程序、使用方法、系統架設及步驟皆已撰寫完成。"

中文關鍵字

"細懸浮微粒、移動污染源、粒狀污染物"

英文標題

"The development of the vehicle PM2.5 measurement technique"

英文摘要

"The vehicle exhaust is one of the major air pollution sources in the modern cities. To monitor and control the particulate matter emission of in-use vehicles is a critical and important means to improve the air quality. The main purposes of the present study was to develop a real-time, low cost and simple method to measure vehicle exhausted PM. The work might be helpful for environmental policy making and eventually environment improvement. The sampling and measurement system was design to include a chamber adapter connecting to tailpipe, a dehumidifying unit, and aerosol size-selective device, and an appropriate measurement. Aerosol instruments, such as SMPS, CPC, black carbon aerosol monitor (AE51), and filter were used to measure the particle size distribution, number concentration, black carbon concentration and PM mass, respectively. The effects of temperature, humidity, condition time on the filter weighting were evaluated. A high resolution nano-DMA was used to measure aerosol penetration through the volatile particle remover (VPR), as function of aerosol size with the lower limit down to 2.5 nm. The penetration test was conducted using sodium chloride as non-volatile agent to validate the effect of VPR temperature on the aerosol deposition. The change in size distribution and number concentration of motorcycle exhaust particles was then used to determine whether the homogeneous nucleation exited during the cooling down process. The relationship between SPN, mass and AE51 measurements were also evaluated. The results indicated that the PTFE filter was the most appropriate media for sampling particulate matter. The mass decrease due to semi-volatile matter decreased with increasing temperature of the sampling filter holder. The black carbon concentration was not affected by the semi-volatile matter and could be used as an index to infer the mass concentration. The AE51 had a good relationship with the SPN method. The VPR reduced the particle size and resulted in the underestimation of particle number concentration, probably due to some of the particles smaller than 2.5 nm, the lower detection limit of ultrafine condensation particle counter. The homogeneous nucleation was not observed in the motorcycle exhaust. The regression analysis showed a good relationship between PFDS and CVS results of particle number and black carbon measurement. The mass concentration had a poor relationship between these two dilution systems due to the low particle emission. The method developed by this study had advantages of easy, convenient, and real-time measurement and suitable for the vehicle particulate emission. "

英文關鍵字

"PM2.5, Mobile sources, Particulate matter"

施政分類

"環境監測及檢測"

專案類型說明

"科技研究類專案"

專案計劃編號

"EPA-104-1602-02-02"

專案年度

104

專案經費

"293"

合約開始日期

2015-03-10

合約結束日期

2015-12-31

主辦單位

"環檢所"

承辦人

"黃文俊"

執行單位

"台灣大學"

專案主持人

"陳志傑"

協同主持人

"黃盛修"

共同主持人

專案報告下載URL

https://epq.epa.gov.tw/project/filedownload.aspx?fid=120207