環保專案成果報告查詢系統

專案計畫編號
經費年度	107
計畫經費	2,850 千元
專案開始日期	2018/08/22
專案結束日期	2019/03/31
專案主持人	李居昌
主辦單位	金門縣環境保護局
承辦人	楊恭坤
執行單位	祥威環境科技股份有限公司
專案分類	大氣空氣
中文關鍵字	重金屬，細懸浮微粒，氣膠，陰陽離子
英文關鍵字	Heavy metal, PM2.5, Aerosol, Anion and cation
協同主持人
共同主持人
計畫聯絡人	蔡蕎璘
計畫聯絡電話	07-7152892#
計畫聯絡信箱	cl.tsai@leder.com.tw

中文摘要	本計畫於2018年11月16日至2019年1月15日於金門縣金城國中進行PM2.5、重金屬及水溶性陰陽離子之監測，並由氣象因子(風速、風向等)及濃度趨勢評估其可能污染來源，本年度計畫各工作項目執行成果，主要分述如下：一、完成細粒徑懸浮微粒(PM2.5)連續監測共53.45天。在線式微粒質量濃度分析儀(EBAM)，受濕度影響，其PM2.5測值與環保署測站內的分析儀趨勢一致，但容易有些極值產生。經篩除RH>80%後，數據品質有明顯提升，未來如有類似應用，需留意相對濕度可能的干擾，可參考此篩選原則。二、完成PM2.5上重金屬連續監測共46.16天。由分析結果顯示， PM10日均值符合法規標準， PM2.5共7日超標。重金屬物種濃度以地殼元素中鉀、鐵、鋅及鈣金屬元素有相對較高的平均濃度，分別為476.3、169.3、105.5及92.5 ng/m3；鉛、錳及鈦等金屬元素次之，分別為21.7、13.5及12.5 ng/m3。由濃度與風向之風玫瑰圖可得，大多數重金屬物種高濃度風向大多以西南風及東北風為主。再藉由風向機率統計結果顯示，主要盛行風為東北風，出現頻率占有效風向的33.98%，顯示本次監測期間，當地的主要盛行風向為東北風，而以總量來看從北北東風到東北東風的夾角範圍(此範圍內的風向出現比例合計共68.93%)亦為主要的風向趨勢之ㄧ。三、完成PM2.5上陰陽離子與主要離子前驅氣體連續監測共54.70天。以平均濃度而言，氣體以NH3濃度2.67 ppb為較高，其次為SO2濃度1.07 ppb，濃度最低為HCl 0.16 ppb；水溶性陽離子以NH4+以2.50 µg/m3為較高，以K+較低0.13 µg/m3；水溶性陰離子以SO42-以6.41 µg/m3為較高，以NO2-為較低0.39 µg/m3。其中水溶性陰陽離子占PM2.5中的比例以SO42-以28.40%為較高，其次為NO3- 20.70%，可得知空氣中氣膠成分於PM2.5中占有一定的比例。由於SOR>0.25及NOR>0.10，表示SO42-與NO3-是當地產生污染物氧化外也有可能是長程傳輸污染物氧化而成，也表示此地區氧化反應較強，具有較多衍生性PM2.5。由極座標圖來看，多數的金屬元素和優勢陰陽離子(SO42-、NH4+及NO3-)的污染來源型態和PM2.5一致，高濃度主要發生在低風速時，來自西南西方。
中文關鍵字	重金屬，細懸浮微粒，氣膠，陰陽離子

中文摘要

本計畫於2018年11月16日至2019年1月15日於金門縣金城國中進行PM2.5、重金屬及水溶性陰陽離子之監測，並由氣象因子(風速、風向等)及濃度趨勢評估其可能污染來源，本年度計畫各工作項目執行成果，主要分述如下：一、完成細粒徑懸浮微粒(PM2.5)連續監測共53.45天。在線式微粒質量濃度分析儀(EBAM)，受濕度影響，其PM2.5測值與環保署測站內的分析儀趨勢一致，但容易有些極值產生。經篩除RH>80%後，數據品質有明顯提升，未來如有類似應用，需留意相對濕度可能的干擾，可參考此篩選原則。二、完成PM2.5上重金屬連續監測共46.16天。由分析結果顯示， PM10日均值符合法規標準， PM2.5共7日超標。重金屬物種濃度以地殼元素中鉀、鐵、鋅及鈣金屬元素有相對較高的平均濃度，分別為476.3、169.3、105.5及92.5 ng/m3；鉛、錳及鈦等金屬元素次之，分別為21.7、13.5及12.5 ng/m3。由濃度與風向之風玫瑰圖可得，大多數重金屬物種高濃度風向大多以西南風及東北風為主。再藉由風向機率統計結果顯示，主要盛行風為東北風，出現頻率占有效風向的33.98%，顯示本次監測期間，當地的主要盛行風向為東北風，而以總量來看從北北東風到東北東風的夾角範圍(此範圍內的風向出現比例合計共68.93%)亦為主要的風向趨勢之ㄧ。三、完成PM2.5上陰陽離子與主要離子前驅氣體連續監測共54.70天。以平均濃度而言，氣體以NH3濃度2.67 ppb為較高，其次為SO2濃度1.07 ppb，濃度最低為HCl 0.16 ppb；水溶性陽離子以NH4+以2.50 µg/m3為較高，以K+較低0.13 µg/m3；水溶性陰離子以SO42-以6.41 µg/m3為較高，以NO2-為較低0.39 µg/m3。其中水溶性陰陽離子占PM2.5中的比例以SO42-以28.40%為較高，其次為NO3- 20.70%，可得知空氣中氣膠成分於PM2.5中占有一定的比例。由於SOR>0.25及NOR>0.10，表示SO42-與NO3-是當地產生污染物氧化外也有可能是長程傳輸污染物氧化而成，也表示此地區氧化反應較強，具有較多衍生性PM2.5。由極座標圖來看，多數的金屬元素和優勢陰陽離子(SO42-、NH4+及NO3-)的污染來源型態和PM2.5一致，高濃度主要發生在低風速時，來自西南西方。

中文關鍵字

重金屬，細懸浮微粒，氣膠，陰陽離子

類型	檔名	檔案大小	說明	最新版公開日期
期末報告	107年度金門縣在線式(online)儀器檢測PM2.5成分及貢獻來源計畫期末報告(定稿).pdf	3MB		2021/1/6 上午 12:00:00

摘要	This project is aimed at the monitoring of PM2.5, heavy metals, and water-soluble anions and cations in Jin-cheng junior high school in Kinmen from November 16, 2018 to January 15, 2019. Through the meteorological factors(wind speed, and wind direction, etc.) and concentration trends are used to assess the possible sources of pollutions. The summary of the results of this project is as follows: 1. Complete continuous monitoring of fine particle(PM2.5) for 53.45 days. The on-line particle mass concentration analyzer (EBAM), which is affected by humidity, the trend of PM2.5 concentration is consistent with EPA station, but it is easy to have extreme values. After screening RH>80%, the data quality is obviously improved. If there are similar applications in the future, should pay attention to the possible interference of relative humidity. You can refer to this screening principle. 2. Complete continuous monitoring of heavy metals in fine particle for 46.16 days. The analysis results show that the daily average value of PM10 meets the regulatory standards, and PM2.5 exceeds the standard for 7 days. The concentrations of heavy metal species have relatively high average concentrations of potassium, iron, zinc and calcium in the crust elements, which are 476.3, 169.3, 105.5 and 92.5 ng/m3, respectively. The lead, manganese and titanium are second, 21.7, 13.5 and 12.5 ng/m3 ,respectively. According to the wind and rose diagram of the concentration and wind direction, most of the heavy metal species have a high concentration of wind direction, mainly southwest and northeast. According to the statistical results of wind direction, and the main prevailing wind is the northeast wind. The frequency of occurrence is 33.98% of the effective wind direction. It shows that during the monitoring period, the main prevailing wind direction in the local area is the northeasterly wind, and the total angle from the north-north east wind to the northeast easterly wind (the total wind direction in this range is 68.93%) is also the main wind direction trend. 3. Complete continuous monitoring of anion, cations, and main ion precursor gas in fine particle for 54.70 days. In terms of average concentration, the gas has higher NH3 concentration of 2.67 ppb, followed by SO2 1.07 ppb and a minimum concentration of HCl 0.16 ppb. The water-soluble cation is higher with NH4+ 2.50 μg/m3 and lower with K+ 0.13 μg/m3. The water-soluble anion is higher with SO42- 6.41 μg/m3 and lower with NO2- 0.39 μg/m3. Among them, the proportion of water-soluble anion and cation in PM2.5 is higher with SO42- 28.40%, followed by NO3- 20.70%. It can be known that the aerosol component in atmosphere occupies a certain proportion in PM2.5. Since SOR>0.25 and NOR>0.10, it means that SO42- and NO3- are oxidized by local pollutants and may be oxidized by long-range transport pollutants. It also indicates that the oxidation reaction in this area is strong and has more derivative PM2.5. According to the polar plot, most of the metal elements and the dominant anion and cation(SO42-, NH4+, and NO3-) have the same pollution source type as PM2.5, and the high concentration mainly occurs at low wind speeds from the southwestern west.
英文關鍵字	Heavy metal, PM2.5, Aerosol, Anion and cation

摘要

This project is aimed at the monitoring of PM2.5, heavy metals, and water-soluble anions and cations in Jin-cheng junior high school in Kinmen from November 16, 2018 to January 15, 2019. Through the meteorological factors(wind speed, and wind direction, etc.) and concentration trends are used to assess the possible sources of pollutions. The summary of the results of this project is as follows: 1. Complete continuous monitoring of fine particle(PM2.5) for 53.45 days. The on-line particle mass concentration analyzer (EBAM), which is affected by humidity, the trend of PM2.5 concentration is consistent with EPA station, but it is easy to have extreme values. After screening RH>80%, the data quality is obviously improved. If there are similar applications in the future, should pay attention to the possible interference of relative humidity. You can refer to this screening principle. 2. Complete continuous monitoring of heavy metals in fine particle for 46.16 days. The analysis results show that the daily average value of PM10 meets the regulatory standards, and PM2.5 exceeds the standard for 7 days. The concentrations of heavy metal species have relatively high average concentrations of potassium, iron, zinc and calcium in the crust elements, which are 476.3, 169.3, 105.5 and 92.5 ng/m3, respectively. The lead, manganese and titanium are second, 21.7, 13.5 and 12.5 ng/m3 ,respectively. According to the wind and rose diagram of the concentration and wind direction, most of the heavy metal species have a high concentration of wind direction, mainly southwest and northeast. According to the statistical results of wind direction, and the main prevailing wind is the northeast wind. The frequency of occurrence is 33.98% of the effective wind direction. It shows that during the monitoring period, the main prevailing wind direction in the local area is the northeasterly wind, and the total angle from the north-north east wind to the northeast easterly wind (the total wind direction in this range is 68.93%) is also the main wind direction trend. 3. Complete continuous monitoring of anion, cations, and main ion precursor gas in fine particle for 54.70 days. In terms of average concentration, the gas has higher NH3 concentration of 2.67 ppb, followed by SO2 1.07 ppb and a minimum concentration of HCl 0.16 ppb. The water-soluble cation is higher with NH4+ 2.50 μg/m3 and lower with K+ 0.13 μg/m3. The water-soluble anion is higher with SO42- 6.41 μg/m3 and lower with NO2- 0.39 μg/m3. Among them, the proportion of water-soluble anion and cation in PM2.5 is higher with SO42- 28.40%, followed by NO3- 20.70%. It can be known that the aerosol component in atmosphere occupies a certain proportion in PM2.5. Since SOR>0.25 and NOR>0.10, it means that SO42- and NO3- are oxidized by local pollutants and may be oxidized by long-range transport pollutants. It also indicates that the oxidation reaction in this area is strong and has more derivative PM2.5. According to the polar plot, most of the metal elements and the dominant anion and cation(SO42-, NH4+, and NO3-) have the same pollution source type as PM2.5, and the high concentration mainly occurs at low wind speeds from the southwestern west.

英文關鍵字

Heavy metal, PM2.5, Aerosol, Anion and cation