EPA-97-FA11-03-A019

097

3,500 千元

2008/01/11

2008/12/31

吳義林

監資處

藍文農

財團法人成大研究發展基金會

環境資訊系統

平行比對, 懸浮微粒, 超級測站, 品保查核

intercomparison measurements, PM supersite, quality assureance auditing

賴進興,林清和

吳義林

06-2386764

niki67@ms2.url.com.tw

本計畫之主要目的為執行南部超級微粒測站的品保查核作業，比對儀器採樣與監測方法差異性，測值有效性確認及對於污染事件進行特徵分析。其工作項目包括有品保查核與檢討，儀器之平行比對及有效運轉數據分析及污染事件日之分析。各站儀器運轉率以RP1400PM2.5除10月潮州站外，皆有達90%以上為最佳， H2O2監測儀之運轉率為最差。校正查核之結果大都是優良，在160項中只有輔英站與前鎮站Sunset EC/OC之流量未符合標準。每月品保查核之意見主要為請維護公司盡快完成ESA、Ecotech、Thermo NH3監測儀之校正標準作業程序儀器與維護表之操作範圍過大之修正和H2O2監測儀運轉率過低等意見。平行比對之結果顯示NH3監測儀之測值較高，可能因為轉化器將其他氣態污染物也轉化之作用。本研究以一氧化碳作為擴散因子，將增量來源分為擴散不良增量與額外增量。高屏地區之事件日來源主要有三種特徵，非假日發生頻率高於假日；冬季以12月發生最多事件日，12月發生較多事件日之原因為受到冬季擴散條件不良之因素；另外1~3月粗微粒額外增量事件日增加，原因可能為沙塵暴造成。高屏地區146筆事件日中，完全擴散增量型22筆；擴散增量型34筆；平均型29筆；額外增量型51筆；完全額外增量型有10筆，真正擴散因素無貢獻(完全擴散增量型)僅有22筆。

平行比對, 懸浮微粒, 超級測站, 品保查核

EPA-97-FA11-03-A019.rar

3MB

[期末報告]公開完整版

2009/3/1 上午 12:00:00

The purposes of the project are to audit the operation and maintenance of PM supersites in southern Taiwan, to evaluate the performance of method methods, and to study the characteristics of PM episodic events. Therefore, this project includes the quality assurance and quality control auditing of routine maintenances, parallel intercomparison between manual and automatic sampling methods, the analyses of quality-controlled data, and the analysis of PM episodes. The effective operation rates of RP1400 PM2.5 were greater than 90% except that at Chaouchou in October and were the greatest among all measured items. The effective operation rates of H2O2 monitor were the worst and were less than 20%. The results of calibration audit were excellent. Among the 160 examined items, only the gas flow rates of Sunset 5040 are out of the operation ranges. The major items of auditions can be summarized such as the ranges of instrument maintaining and operation are too large and should be set within 10% and should establish the SOP of NH3 monitors such as ESA, Ecotech, and Thermo and the low effective operation rates of H2O2 monitor.The results of intercomparison show that the greater NH3 concentrations measured by automatic monitors are due to the conversion of other gaseous pollutants.In order to understand the formation of PM episodes in Kaoping air basin, this study differentiate the effects of diffusion and extra increment by using CO as a tracer. There are three characteristics in PM episodic events in Kaoping air basin. First, the episode frequency during weekday is greater that of weekend. Second, the greatest frequent PM events are in December because of the poor diffusion in winter. Third, the frequency of coarse particle events increases from January to March due to the effects of dust storm. Among the 163 PM episodic events during January 2006 to March 2008, the numbers for fully diffusion, mostly diffusion, even, mostly increment, and fully increment are 22, 34, 29, 51, and 10, respectively.

intercomparison measurements, PM supersite, quality assureance auditing