周界空氣中醛酮類有害空氣污染物調查技術(吸附匣與吸收液)比對計畫
| 中文摘要 | 本計畫主要針對甲醛、乙醛、巴豆醛及甲基異丁酮等醛酮類有害空氣污染物進行採樣與檢測技術之研究開發。研究方法乃參考USEPA TO-11A及NIEA A705，並選用市售Supelco及Waters兩種廠牌吸附匣為採樣介質，藉以建立吸附匣之採樣技術，並將相關驗證結果與現行環檢所公告之NIEA A705方法進行比對。 經以高效能液相層析儀(HPLC)進行分析，4項化合物檢量線線性(R)皆可達0.995，且回收率測試結果顯示，各化合物皆有良好的精密度與準確度。在比較吸附匣與吸收液方法偵測極限，吸附匣相對吸收液可獲得較低的偵測極限。經由保存期限測試結果，本計畫建議樣品必須在完成採樣後置於冷藏4 ℃環境下避光保存，收附匣樣品可保存14 天，而脫附液樣品建議於28 天內完成分析工作。 此外，本計畫另針對吸附匣採樣過程可能之干擾因子(臭氧、NO2及水分)進行測試，由測試結果顯示臭氧對採樣過程具有干擾現象，其中影響巴豆醛之回收率最為顯著(回收率低於37%以下)，若於吸附匣前端加裝臭氧去除器則可改善這項干擾，各待測物回收率皆能達到85%以上，而NO2及水分對吸附匣採樣過程的干擾則較小，整體測試結果平均回收率皆能達到85%以上。 本計畫亦運用上述調查技術開發之採樣及分析條件，完成國內工廠6處次周界空氣實廠採樣，經由實廠驗證可知調查技術開發之可行。此外，計畫執行期間(108年6月、10月)分別成果完成兩場次調查技術擴散，並提出本計畫周界空氣醛酮類污染物之吸附匣方法調查技術草案，提供日後環保署檢測技術援引之參考。 | ||
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| 中文關鍵字 | 周界空氣，吸附匣，有機污染物性、醛酮類 | ||
基本資訊
| 專案計畫編號 | 經費年度 | 108 | 計畫經費 | 184 千元 | |
|---|---|---|---|---|---|
| 專案開始日期 | 2019/03/07 | 專案結束日期 | 2019/12/31 | 專案主持人 | 陳貝貞 |
| 主辦單位 | 環檢所 | 承辦人 | 陳正穎 | 執行單位 | 上準環境科技股份有限公司 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | 期末報告定稿.pdf | 4MB | 期末報告定稿 |
Comparative study of survey techniques for aldehyde and ketone hazardous air pollutants in ambient air
| 英文摘要 | The goal of this project is to develop samplings and analysis technology of hazardous air pollutants of aldehyde and ketone compounds, including Formaldehyde, Acetaldehyde, Crotonaldehyde and Methyl Isobutyl Ketone. The research method is based on USEPA TO-11A and NIEA A705, and the commercially available Supelco and Waters cartridge is used as the sampling medium to establish the sampling technique. All the tested results are compared to NIEA A705, which is the current method announced by Environmental Protection Administration Executive Yuan. The samples of aldehyde and ketone compounds are analyzed by high performance liquid chromatography(HPLC), and the result shows great precision and accuracy with the linear regression of calibration curve achieving 0.995. In the comparison of the detection limit of using cartridge and absorption liquid, the cartridge is relatively large in the gas recovery volume, so that a lower detection limit can be obtained. As the result of measurement, it is recommended that the sample must be stored in the cold at 4 °C without light and analyzed within 14 days, and the sample of the desorption solution is analyzed within 28 days. In addition, the possible interference factors, Ozone, NO2 and moisture, of cartridge sampling are tested. The results indicate that ozone has interference to the sampling process. If the ozone front remover is installed at the front end of the cartridge, the interference is improved. There are six samplings of ambient air in the domestic factory completed, and the outcomes indicate the viable development of investigative techniques. Besides, two sessions of technological diffusion were held in June and October, 2019 respectively. In conclusion, the draft program of using cartridge to survey ambient air pollutants of aldehyde and ketone compounds is proposed to provide future reference of the detection technology. | ||
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| 英文關鍵字 | ambient air, cartridge, organic compounds, aldehyde and ketone | ||