環保專案成果報告查詢系統

專案計畫編號
經費年度	111
計畫經費	8,500 千元
預算科目	空氣品質監測
專案開始日期	2022/07/04
專案結束日期	2024/07/04
專案主持人	王介亨
主辦單位	環境部監測資訊司
承辦人	陳彥君
執行單位	錦雲技術開發有限公司
專案分類	環境監測及檢測
中文關鍵字	揮發性有機化合物、光化學評估監測站、品保查核
英文關鍵字	Volatile Organic Compounds, Photochemical Assessment Monitoring Stations, Quality Assurance Audit
協同主持人
共同主持人
計畫聯絡人	王介亨
計畫聯絡電話	0910269245
計畫聯絡信箱	chwang1110@gmail.com

中文摘要	環境部自民國91年起於臺中市崇倫公園架設第一座光化測站，至今已完整設置了11座固定光化學評估監測站及4個行動站透過資料的品保與品管，光化監測網穩定運行超過20年，各站54個揮發性有機化合物的逐時資料，無論數據品質、連續性與完整性，全世界有目共睹，不但為臺灣針對臭氧問題而進行之環境監測所累積之最寶貴的資產，同時有助於環境部實施空氣污染總量管制，使臺灣的空氣品質逐漸獲得改善。透過多年之觀測資料，得知一次污染物濃度雖走向改善趨勢，但是二次污染物的臭氧改善趨勢並不明顯，故可利用光化測站資料進行研究，探討臺灣大氣中揮發性有機化合物的特徵，並搭配空品測站資料進行分析比較，進而有效改善大氣中臭氧問題。目前臺灣光化站內所使用之監測設施係採用美國Perkin Elmer公司自動揮發性有機化合物分析系統作為光化站主要監測設施，整體系統包含熱脫附儀、氣相層析儀／火焰離子偵測器、氣體產生機、標準氣體、空壓機及控制電腦等裝置，其中，熱脫附儀及氣相層析儀／火焰離子偵測器為主要分析儀器。為確保光化站高運轉率及產出正確性數據，除仰賴修訂測站品管操作手冊及品保查核手冊外，並且落實執行此兩本手冊所規範事項，另於計畫執行期間持續檢討測站現場查核細項，並針對測站周遭環境維護、測站品保手冊、測站安全設施、資深人員不定期查核及行動測站氣象設備查核等項目進行查核程序。本計畫完成各項工作：（1）完成11個監測站及4個行動站現場查核工作，各測站有部分缺失，包括圖譜出現雜訊、層析峰出現拖尾、管線銹蝕、降溫晶片結冰、安全旬維護紀錄表、設備旬維護紀錄表及安全及設備月紀錄表未放測站或出現圖譜分析不完全等。所有缺失經由反映後，維護廠商均將其改善，持續維持系統穩定，降低重複出現缺失的機率。亦完成不定期查核，其主要在於避免例行性查核慣性造成查核盲點，此部份由計畫主持人至各測站查核，發現各測站整體維護作業並無重大缺失事項，其他缺失事項也於事後複查時改善。（2）數據品質查核，各測站之數據保全工作經與儀器維護廠商維護人員確認保存完整外，同時也確認均已備份至第二存放點於儀器維護廠商移動式硬碟內；原始數據紀錄與傳送數據查核結果發現，各測站數據筆數吻合。歸納資料可用率未達85%的原因與改善建議分為兩大項，分別為儀器元件耗損導致可用率下降、標準品查核超過偏差（±15%）。（3）標準品查核之查核頻率為每月一次，每3日施打標準品，次一工作日品保單位會立即管控標準品是否超出允收範圍，如超過會立即請維護單位確認原因並追蹤改善結果，品保單位須依此判定該月定性定量之基準。（4）依據品保查核手冊之系統及績效查核項目包括方法偵測極限、檢量線及檢量線確認、空白樣品查核、精密性及績效查核等五項工作，本查核之工作由測站維護商於測站執行，本計畫負責將資料彙整並進行統計。（5）氣象設備查核主要針對監測車之風向、風速計進行查核，各監測車之氣象查核均符合允收範圍。（6）維護廠商均有按預定期程進行各別測站的年度保養。（7）蒐集國內外光化站運作及品保相關資訊及監測數據分析、運用成果。不論測站所在位置位於都會區、工業區或兩種區域共存之型式，在不同測站各物種均有其之變化趨勢，但是主要多為逐年下降的趨勢。另外，數據經由臭氧最大增量反應（MIR）的轉換，求得各測站前五位的臭氧生成潛勢（OFP），以甲苯（Toluene）、間,對-二甲苯（m,p-Xylene）、乙烯（Ethylene）、丙烯（Propylene）四個貢獻量較大，第五個有鄰-二甲苯（o-Xylene）、1,2,4-三甲基苯（1,2,4-Trimethylbenzene），僅臺西站、潮州站有異戊二烯（Isoprene），此為特殊的生物源排放物質，其歷年總臭氧生成潛勢亦有歷年下降的趨勢。
中文關鍵字	揮發性有機化合物、光化學評估監測站、品保查核

中文摘要

環境部自民國91年起於臺中市崇倫公園架設第一座光化測站，至今已完整設置了11座固定光化學評估監測站及4個行動站透過資料的品保與品管，光化監測網穩定運行超過20年，各站54個揮發性有機化合物的逐時資料，無論數據品質、連續性與完整性，全世界有目共睹，不但為臺灣針對臭氧問題而進行之環境監測所累積之最寶貴的資產，同時有助於環境部實施空氣污染總量管制，使臺灣的空氣品質逐漸獲得改善。透過多年之觀測資料，得知一次污染物濃度雖走向改善趨勢，但是二次污染物的臭氧改善趨勢並不明顯，故可利用光化測站資料進行研究，探討臺灣大氣中揮發性有機化合物的特徵，並搭配空品測站資料進行分析比較，進而有效改善大氣中臭氧問題。目前臺灣光化站內所使用之監測設施係採用美國Perkin Elmer公司自動揮發性有機化合物分析系統作為光化站主要監測設施，整體系統包含熱脫附儀、氣相層析儀／火焰離子偵測器、氣體產生機、標準氣體、空壓機及控制電腦等裝置，其中，熱脫附儀及氣相層析儀／火焰離子偵測器為主要分析儀器。為確保光化站高運轉率及產出正確性數據，除仰賴修訂測站品管操作手冊及品保查核手冊外，並且落實執行此兩本手冊所規範事項，另於計畫執行期間持續檢討測站現場查核細項，並針對測站周遭環境維護、測站品保手冊、測站安全設施、資深人員不定期查核及行動測站氣象設備查核等項目進行查核程序。本計畫完成各項工作：（1）完成11個監測站及4個行動站現場查核工作，各測站有部分缺失，包括圖譜出現雜訊、層析峰出現拖尾、管線銹蝕、降溫晶片結冰、安全旬維護紀錄表、設備旬維護紀錄表及安全及設備月紀錄表未放測站或出現圖譜分析不完全等。所有缺失經由反映後，維護廠商均將其改善，持續維持系統穩定，降低重複出現缺失的機率。亦完成不定期查核，其主要在於避免例行性查核慣性造成查核盲點，此部份由計畫主持人至各測站查核，發現各測站整體維護作業並無重大缺失事項，其他缺失事項也於事後複查時改善。（2）數據品質查核，各測站之數據保全工作經與儀器維護廠商維護人員確認保存完整外，同時也確認均已備份至第二存放點於儀器維護廠商移動式硬碟內；原始數據紀錄與傳送數據查核結果發現，各測站數據筆數吻合。歸納資料可用率未達85%的原因與改善建議分為兩大項，分別為儀器元件耗損導致可用率下降、標準品查核超過偏差（±15%）。（3）標準品查核之查核頻率為每月一次，每3日施打標準品，次一工作日品保單位會立即管控標準品是否超出允收範圍，如超過會立即請維護單位確認原因並追蹤改善結果，品保單位須依此判定該月定性定量之基準。（4）依據品保查核手冊之系統及績效查核項目包括方法偵測極限、檢量線及檢量線確認、空白樣品查核、精密性及績效查核等五項工作，本查核之工作由測站維護商於測站執行，本計畫負責將資料彙整並進行統計。（5）氣象設備查核主要針對監測車之風向、風速計進行查核，各監測車之氣象查核均符合允收範圍。（6）維護廠商均有按預定期程進行各別測站的年度保養。（7）蒐集國內外光化站運作及品保相關資訊及監測數據分析、運用成果。不論測站所在位置位於都會區、工業區或兩種區域共存之型式，在不同測站各物種均有其之變化趨勢，但是主要多為逐年下降的趨勢。另外，數據經由臭氧最大增量反應（MIR）的轉換，求得各測站前五位的臭氧生成潛勢（OFP），以甲苯（Toluene）、間,對-二甲苯（m,p-Xylene）、乙烯（Ethylene）、丙烯（Propylene）四個貢獻量較大，第五個有鄰-二甲苯（o-Xylene）、1,2,4-三甲基苯（1,2,4-Trimethylbenzene），僅臺西站、潮州站有異戊二烯（Isoprene），此為特殊的生物源排放物質，其歷年總臭氧生成潛勢亦有歷年下降的趨勢。

中文關鍵字

揮發性有機化合物、光化學評估監測站、品保查核

類型	檔名	檔案大小	說明	最新版公開日期
期末報告	111-112年成果報告.pdf	10MB	111-112年度光化學評估監測站操作品保例行性計畫成果報告	2025/1/31 上午 12:00:00

摘要	Since 2002, Taiwan's Ministry of Environment has established a photochemical monitoring network, starting with the first station at Chonglun Park in Taichung City. Today, the network comprises 11 fixed photochemical monitoring stations and 4 mobile stations. Over two decades, this network has provided stable, high-quality hourly data for 54 volatile organic compounds (VOCs), earning international recognition for its quality, continuity, and completeness. This invaluable dataset has been instrumental in addressing ozone-related environmental issues and supporting total quantity control measures, contributing to gradual improvements in Taiwan’s air quality. Through long-term observations, it has been found that while primary pollutants show a downward trend, secondary pollutants such as ozone exhibit less improvement. The extensive data from photochemical stations supports research into VOCs characteristics in Taiwan’s atmosphere, facilitating comparative analysis with air quality monitoring data to develop strategies for mitigating elevated ozone levels. Taiwan's photochemical stations use Perkin Elmer’s automated VOCs analysis system as their primary monitoring equipment. This system includes a thermal desorption unit, a gas chromatograph/flame ionization detector (GC/FID), a gas generator, standard gases, an air compressor, and a control computer. Quality assurance and control are maintained through adherence to updated QA/QC manuals and regular audits. Key project achievements include: 1. Station Inspections: Completed site audits for 11 monitoring stations and 4 mobile stations. Identified and resolved issues such as signal noise, peak tailing, pipeline corrosion, and incomplete analytical records. 2. Data Quality Assurance: Verified the consistency of raw and transmitted data. Ensured data backups were securely stored. Investigated and addressed causes for data availability rates below 85%, including equipment wear and calibration deviations exceeding ±15%. 3. Standard Sample Verification: Conducted monthly standard sample checks and analyzed results to confirm compliance. Addressed any deviations immediately to maintain data integrity. 4. System and Performance Audits: Evaluated detection limits, calibration curves, blank sample checks, and sample precision in accordance with QA guidelines. 5. Meteorological Equipment Audits: Verified the accuracy of wind direction and wind speed monitors on mobile stations, ensuring compliance with standards. 6. Annual Maintenance: Ensured all stations received scheduled annual maintenance to maintain system stability and data accuracy. 7. International Comparisons: Collected and analyzed operational data and QA/QC practices from domestic and international photochemical monitoring stations to refine methodologies. Regardless of station location—urban, industrial, or mixed-use areas—data trends show a year-on-year decline in most monitored species. Using Maximum Incremental Reactivity (MIR), the top contributors to Ozone Formation Potential (OFP) were identified as Toluene, m,p-Xylene, Ethylene, and Propylene, with o-Xylene or 1,2,4-Trimethylbenzene ranking fifth. Isoprene, a unique biogenic emission, was observed only at Taixi and Chaozhou stations. Long-term OFP trends indicate a consistent decline, reflecting the effectiveness of emission control measures.
英文關鍵字	Volatile Organic Compounds, Photochemical Assessment Monitoring Stations, Quality Assurance Audit

摘要

Since 2002, Taiwan's Ministry of Environment has established a photochemical monitoring network, starting with the first station at Chonglun Park in Taichung City. Today, the network comprises 11 fixed photochemical monitoring stations and 4 mobile stations. Over two decades, this network has provided stable, high-quality hourly data for 54 volatile organic compounds (VOCs), earning international recognition for its quality, continuity, and completeness. This invaluable dataset has been instrumental in addressing ozone-related environmental issues and supporting total quantity control measures, contributing to gradual improvements in Taiwan’s air quality. Through long-term observations, it has been found that while primary pollutants show a downward trend, secondary pollutants such as ozone exhibit less improvement. The extensive data from photochemical stations supports research into VOCs characteristics in Taiwan’s atmosphere, facilitating comparative analysis with air quality monitoring data to develop strategies for mitigating elevated ozone levels. Taiwan's photochemical stations use Perkin Elmer’s automated VOCs analysis system as their primary monitoring equipment. This system includes a thermal desorption unit, a gas chromatograph/flame ionization detector (GC/FID), a gas generator, standard gases, an air compressor, and a control computer. Quality assurance and control are maintained through adherence to updated QA/QC manuals and regular audits. Key project achievements include: 1. Station Inspections: Completed site audits for 11 monitoring stations and 4 mobile stations. Identified and resolved issues such as signal noise, peak tailing, pipeline corrosion, and incomplete analytical records. 2. Data Quality Assurance: Verified the consistency of raw and transmitted data. Ensured data backups were securely stored. Investigated and addressed causes for data availability rates below 85%, including equipment wear and calibration deviations exceeding ±15%. 3. Standard Sample Verification: Conducted monthly standard sample checks and analyzed results to confirm compliance. Addressed any deviations immediately to maintain data integrity. 4. System and Performance Audits: Evaluated detection limits, calibration curves, blank sample checks, and sample precision in accordance with QA guidelines. 5. Meteorological Equipment Audits: Verified the accuracy of wind direction and wind speed monitors on mobile stations, ensuring compliance with standards. 6. Annual Maintenance: Ensured all stations received scheduled annual maintenance to maintain system stability and data accuracy. 7. International Comparisons: Collected and analyzed operational data and QA/QC practices from domestic and international photochemical monitoring stations to refine methodologies. Regardless of station location—urban, industrial, or mixed-use areas—data trends show a year-on-year decline in most monitored species. Using Maximum Incremental Reactivity (MIR), the top contributors to Ozone Formation Potential (OFP) were identified as Toluene, m,p-Xylene, Ethylene, and Propylene, with o-Xylene or 1,2,4-Trimethylbenzene ranking fifth. Isoprene, a unique biogenic emission, was observed only at Taixi and Chaozhou stations. Long-term OFP trends indicate a consistent decline, reflecting the effectiveness of emission control measures.

英文關鍵字

Volatile Organic Compounds, Photochemical Assessment Monitoring Stations, Quality Assurance Audit