YLEPB-109-011

109

1,960 千元

2020/01/16

2020/12/31

蔡瀛逸

雲林縣環境保護局

謝青酉

嘉藥學校財團法人嘉南藥理大學

公害糾紛、大氣空氣

玻纖製程、氣粒狀物可溶解性含氟量、氟濃度季節性變異

Fiber glass process, Water-soluble fluoride in aerosol and gas phases gaseous- particle pollutants, Seasonal variation of fluoride concentrations

賴信志

蔡瀛逸

06-2664911#6321

mtsaiyi@mail.cnu.edu.tw

雲林縣環境保護局為釐清工業區特定玻璃纖維製程排放之氟化物與環境中存在的現況，若有公害糾紛案件產生，可納入參考，特以本計畫進行玻璃纖維製程周界及背景大氣環境氣粒狀氟化物的研究，本年度(109年)延續108年度計畫執行。採樣地點分別在斗六工業區的富喬工業周界包括斗六工業區污水廠、富喬工業、南仁農戶、楓湖民宅，並以古坑鄉華南國小為背景站點，採樣季段時期分別在2020年2月下旬、4月下旬接5月上旬、7月中旬及9月下旬。2020年2月下旬，不計入2月28日雲林高污染事件日，PM2.5及PM10粒狀物平均F-濃度是四個採樣時期最低，年平均而言，富喬工業場域的PM2.5及PM10 F-濃度較其他周界為高，且日間(最高平均PM2.5 F-濃度37.42±43.62 ng/m3；最高平均PM10 F-濃度86.84±74.54 ng/m3)明顯高於夜間(最高平均PM2.5 F-濃度14.20±17.08 ng/m3；最高平均PM10 F-濃度26.22±31.85 ng/m3)。背景站點的華南國小PM2.5及PM10的年平均F-濃度為PM2.5：4.101.90 ng/m3 (n=17)、PM10：6.902.40 ng/m3 (n=17)，可視為大氣背景F-濃度。氟化氫(HF)年平均濃度以背景測站華南國小(全日HF：312.8121.2 ng/m3)最低，四季次的日夜間平均HF濃度從介於452.4±285.3 ng/m3 (楓湖民宅)至882.3±515.7 ng/m3 (南仁農戶)，有日間高於夜間之勢，在排放源的富喬工業亦非必然出現最高濃度。總氟化物(Total fluorides, Total F-, PM10 F- plus HF F-)主要分布在氣狀氟化物中，其氣狀分配比例平均介於78.2~98.3 %。全年4季平均Total F-濃度由高至低依序為富喬工業(759±356 ng/m3)>南仁農戶(718±476 ng/m3)>楓湖民宅(624±357 ng/m3)>斗工污水廠(573±309 ng/m3)，最低值為背景大氣的華南國小(320±120 ng/m3)，以世界衛生組織(WHO)建議大氣Total F-宜低於1.0 μg/m3 (1000 ng/m3)，對保護牲畜和植物，並保護人類健康的空氣品質標準而言，108年度及109年度富喬工業周界及背景大氣環境之平均Total F-尚低於該標準值，其區域大氣中氣粒相氟濃度未出現特異性高濃度。南仁農戶附近及背景土壤平均水溶性氟離子含量分別為706.5±501.0 μg/kg 及597.0±262.5 μg/kg，在富喬工業附近的南仁農戶其農地土壤水溶性氟離子濃度在各季次採樣表現並未明顯受目標場域氟化物排放沉降所影響。結合雲林區域氣象條件，目標場域的氣粒狀含氟濃度高低受到許多複雜的氣象條件以及排放等因素影響，在風速較低的不良擴散狀態下及下風處確實存在較高的濃度熱區，氣象因素是影響區域特定污染物散佈的關鍵因素之一，因此雲林內陸地區在預測發生可能擴散不良的氣象型態下，對特定工廠的排放減量預警有其特殊管制意義。

玻纖製程、氣粒狀物可溶解性含氟量、氟濃度季節性變異

109雲林氟製程廠期末報告定稿版(YLEPB-109-011).pdf

10MB

2021/5/31 上午 12:00:00

The Yunlin County Environmental Protection Bureau (hereinafter referred to as the YLEPB) clarifies the existence of fluoride in the industrial zone and the surrounding environment. If there is a case of environmental pollution disputes in the future, it will be incorporated for reference. This year (2020) continues the implementation of the 108 year plan. The sampling locations of Fulltech Fiber Glass Corp. (Fulltech) and its surrounding area in Douliu Industrial Zone include the Douliu Sewer System Operation Center (DSSOC), Fulltech, Nanren farmhouse, Fenghu house, and the Hua Nan Elementary School (HNES) in Gukeng Township as a background site. The sampling periods are in late February, late April, mid-July, and late September, 2020. The lowest concentrations of particulate matter (PM) fluoride ion (F-) occurred in late Febrary 2020 excluding the value on Febrary 28, 2020 (an episodic day). On average, the PM2.5 and PM10 F- concentrations at Fulltech are higher than the surroundings, and F- concentrations during the day (the highest average PM2.5 F- concentrations of 37.42±43.62 ng F-/m3; the highest average PM10 F- concentrations of 86.84±74.54 ng F-/m3) was significantly higher than those at night (the highest average PM2.5 F- concentrations of 14.20±17.08 ng F-/m3; the highest average PM10 F- concentrations of 26.22±31.85 ng F-/m3). The annual average F- concentrations in PM2.5 and PM10 at the Hua Nan Elementary School were 4.101.90 ng/m3 (n=17) and 6.902.40 ng/m3 (n=17), respectively, regarding as atmospheric background F- concentrations in PM2.5 and PM10 for this region. The concentrations of gaseous hydrogen fluoride (HF) at the HNES site kepts the lowest concentration of 312.8121.2 ng/m3. The concentration of the lowest value of 452.4±285.3 ng/m3 (Fenghu house) and the highest of 882.3±515.7 ng/m3 (Nanren farmhouse) varied greatly during the day and night surrounding the target field. The HF concentrations at Fulltech, the emission source, are not always the highest concentration. Total fluorides (PM10 F- plus gaseous HF F-, expressed as Total F-) is mainly distributed in the gaseous phase, and the average gaseous distribution ratio is between 78.2~98.3 %. The average total F- concentration in the four seasonal periods of 2020 was in descending order from Fulltech (759±356 ng/m3)>Nanren farmhouse (718±476 ng/m3)> Fenghu house (624±357 ng/m3)> DSSOC (573±309 ng/m3) and the lowest total F- value occurs at the Hua Nan Elementary School (320±120 ng/m3), which represents the background atmosphere in the region. According to the World Health Organization (WHO), the recommended total atmospheric F- concentrations should be less than 1.0 μg/m3 which intend to prevent effects on livestock and plants, as well as to protect human health. The average total F- in ambient air at Fulltech and its surrounding and the background atmospheric environment is lower than this standard value. The average water-soluble F- content in the Fulltech’s surrounding and background soil was between 706.5±501.0 μg/kg (near Nanren farmhouse) and 597.0±262.5 μg/kg (at HNES), and the water-soluble F- content in the surrounding soil was not significantly higher than that in the background soil. Based on the meteorological conditions in the inland Yulin area, the concentration of gaseous/particulate fluorides in the target area is affected by many complicated meteorological conditions and emissions. Under the condition of low wind speed with poor diffusion conditions and the downwind, there are indeed hot spots of high-concentration potential. Meteorological factors are one of the key factors affecting the diffusion of specific pollutants in the region. Therefore, in the inland areas of Yunlin, the early warning of emission reductions for specific factories has special regulatory significance under the forecast of the occurrence of bad weather patterns of unfavorable diffusion.

Fiber glass process, Water-soluble fluoride in aerosol and gas phases gaseous- particle pollutants, Seasonal variation of fluoride concentrations