1031103103

104

8,305 千元

2014/11/29

2015/11/28

朱順傑

桃園市政府環境保護局

呂佳玲

財團法人工業技術研究院

土壤及地下水

特定化合物之穩定同位素分析、含氯溶劑、地下水污染場址

Compound Specific Isotope Analysis ,CSIA, Chlorinated solvent, Groundwater contaminated sites

劉沛宏

朱順傑

03-5732973#

SJ_CHU@itri.org.tw

本計畫針對過去桃園市公告上有疑慮4處場址:(1)中壢工業區A場址、(2)幼獅工業區外B場址、(3)幼獅工業區C場址、與(4)平鎮D場址進行相關調查工作。總共新設16口監測井、檢測28組地下水揮發性有機物、14組土壤樣品、26組穩定同位素特徵，及其他調查工作。調查結果顯示4處場址地下水高污染範圍明確，但仍無足夠資料顯示污染物質從何而來，因此建議先公告為地下水污染限制使用地區，後續建議仍需更多細部調查才能釐清低濃度(管制標準)污染範圍與污染來源。中壢工業區A場址以CL10303與CL10403兩井為核心(TCE>16 mg/L)，向東北方向擴散；幼獅工業區外B場址，地下水污染團分布在工業區外已大部分填平的埤塘，其核心TCE濃度已降至0.376 mg/L；C場址附近TCE污染上升至14.8 mg/L，另有二氯甲烷達管制標準，且附近有兩家工廠有二氯甲烷運作紀錄；平鎮D場址南北兩TCE污染團，經TCE穩定同位素特徵比較顯示，其為兩不同污染來源且下游南邊非受上游北邊所影響。計畫另彙整含氯有機污染場址與含氯溶劑使用現況，桃園仍有台灣地區最多的含氯有機污染場址，占全台五分之一以上。在含氯有機污染工廠管理策略與現況評析以及紅燈工業區管理策略，亦研提相關策略供環保局施政參考。

特定化合物之穩定同位素分析、含氯溶劑、地下水污染場址

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2016/3/1 上午 12:00:00

This project focuses on investigation the four sites declared contamination by Taoyuan authorities including (1) Zhongli Industrial Park A Site, (2) Youth Industrial Park B Site, (3)Youth Industrial Park C site, and (4) Pingzhen District D site. A total of sixteen new monitoring wells were established, and completed volatile organic compounds (VOCs) analysis of twenty-eight groundwater samples and fourteen soil samples, and twenty-six groundwater samples were conducted the compound specific isotope analysis (CSIA). The investigation results indicated that highly contaminated groundwater on these four sites and the contaminated ranges were clearly identified, however, no sufficient information to identify the pollution sources yet. As the result, it shall declare these four sites as the use of groundwater restriction region, and the following detailed investigation should make effort on clarify the range of low concentration contamination (groundwater pollution control standard) and track the pollution sources. Two wells, CL10303 and CL10403 were located in hotspot of Zhongli Industrial Park A Site with TCE concentration over 16 mg/L, and the pollution diffused forward to northeast. In the Youth Industrial Park monitoring B Site, the groundwater plume has diffused and distributed to outside industrial park area among most previous filling up pond, and the TCE concentration in the hot spot has decreased to 0.376 mg/L. Near the C site area, the TCE concentration has increased up to 14.8 mg/L; meanwhile, the dichloromethane (DCM) concentration has reached to groundwater pollution control standard, and two factories nearby C site has been used DCM with the document record. Two TCE polluted plumes were identified at Pingzhen District D site, one in northern region and the other in southern region, According to the CISA results, the pollution source among these two plumes are different, and the plume in southern region is not affecting by the plume in north region. This project collected the numbers of chlorinated ethenes contaminated sites in Taiwan and the current usage of chlorinated solvents statistic data information. It revealed that Taoyuan city still has the largest numbers of chlorinated ethenes contaminated sites in Taiwan, more than one fifth of total numbers. The status reviews of chlorinated contaminated factories and red light industrial parks are completed, and the related management strategies suggestion are provided for the Department of Environmental Protection, Taoyuan to make policies decisions.

Compound Specific Isotope Analysis ,CSIA, Chlorinated solvent, Groundwater contaminated sites