本研究於某工業都市污水下水道系統(A與B主幹管)進行乾溼兩季71種揮發性有機化合物(VOCs)之濃度調查及分析，71種VOCs包含烷烴、烯烴與炔烴、芳香烴、含鹵烴、硫化物、酮及醚類，探討其時空分布並對採樣分析之VOCs進行逸散量推估，且將其中26種有害空氣污染物(HAPs)進行健康風險評估，以了解當中12種HAPs之致癌風險。
濃度分析顯示，兩幹管TVOCs乾季影響程度大於溼季，且濃度最高為A主幹管KB7及B主幹管C3測點，此兩測點主要收集碼頭及加工出口區之污水，污染來源可能為工廠、儲槽或碼頭儲運業。A主幹管乾季以含鹵烴類為主，溼季以烷烴類為主，主要貢獻物種分別為氯乙烯及異戊烷。B主幹管乾溼季皆以芳香烴類為主，主要貢獻物種為間/對二甲苯。
逸散量方面，目標都市TVOCs逸散量乾季最高為測點C3(13,834.79 mg/hr)，溼季最高為測點KB2(1875.25 mg/hr)。乾季兩幹管主要管線之測點(K1 - K3及C1 - C3)逸散量高於其支管測點。兩幹管乾溼季之VOCs平均逸散量皆以芳香烴類為主。乾季B主幹管VOCs逸散量(3248.83 mg/hr)明顯高於A主幹管(1647.58 mg/hr)；溼季A主幹管VOCs逸散量(614.14 mg/hr)高於B主幹管(466.46 mg/hr)。
風險評估方面，各測點之累積致癌風險皆超過可接受致癌風險(1.00×10-6)，其中KB7(5.52×10-2)風險最高，其次為KB5(3.82×10-3)及KB1(2.24×10-3)。平均致癌風險前3大貢獻物種，佔貢獻比例之74.0%，依序為氯乙烯、四氯乙烯及1,2-二氯乙烷。

This work is study 71 kinds of volatile organic compounds (VOCs) in the sewer system of a metropolitan city during dry/wet weather. The VOCs contains alkanes, alkenes and alkynes, aromatics, chlorinated organics, sulfides, ketones and ethers. The purpose of this work estimated the emission rates of VOCs and cancer risk within 12 kinds of hazardous air pollutants (HAPs) will be part of the investigation 26 HAPs by using risk assessment.
TVOCs (concentrations of total VOCs) in dry weather was higher than that in wet weather for both sewer systems. The concentration distributions of dominant were KB7 (C3) in the A (B) sewer system. This system collected sewage from harbor and industrial park. During dry and wet weather, the most common VOCs were chlorinated organics and alkanes in the A sewer system, respectively. The main contribution were chloroethene and isopentane; the most common VOCs were aromatics in the B sewer system. The main contribution was m / p-Xylene.
This results show that the most emission rates of TVOCs is C3 (13,834.79 mg/hr) during dry weather and KB2 (1875.25 mg/hr) during wet weather. The emission rates of K1

謝誌 I
中文摘要 II
ABSTRACT III
目錄 V
表目錄 VIII
圖目錄 X
附表目錄 XII
第一章 前言 1-1
1.1 研究緣起 1-1
1.2 研究目的 1-2
第二章 文獻回顧 2-1
2.1 污水下水道系統概述 2-1
2.2 國內外污水下水道發展經驗 2-4
2.2.1 台灣下水道發展經驗 2-4
2.2.2 國外下水道發展經驗 2-6
2.3 某工業都市地區污水流域分布介紹 2-10
2.4 揮發性有機物之特徵與對環境之影響 2-13
2.4.1 揮發性有機物之來源 2-13
2.4.2 污水下水道系統中揮發性有機物 2-21
2.4.3 影響揮發性之因子 2-24
2.4.4 揮發性有機物之危害 2-30
2.4.5 風險評估 2-36
第三章 研究方法 3-1
3.1 研究架構及流程 3-1
3.2 下水道採樣規劃 3-2
3.2.1 採樣地點與時間 3-2
3.2.2 人孔資料之收集 3-4
3.2.3 逸散量之推估 3-4
3.3 揮發性有機物採樣及分析 3-5
3.3.1 方法概述 3-5
3.3.2 採樣設備 3-8
3.3.3 分析儀器 3-9
3.3.4 品質保證與品質控制 3-10
3.4 致癌風險評估 3-18
第四章 結果與討論 4-1
4.1 某工業都市污水下水道環境現況 4-1
4.2 某工業都市污水下水道之VOCs特性 4-3
4.2.1 烷烴類 4-12
4.2.2 烯烴與炔烴類 4-14
4.2.3 芳香烴類 4-16
4.2.4 含鹵烴類 4-18
4.2.5 硫化物 4-20
4.2.6 酮類 4-22
4.2.7 醚類 4-24
4.2.8 A與B主幹管總濃度分布 4-26
4.3 某工業都市污水下水道之VOCs組成分布 4-31
4.3.1 A主幹管 4-31
4.3.2 B主幹管 4-37
4.4 污水下水道揮發性有機物逸散量推估 4-43
4.5 污水下水道HAPs濃度與相關管制值之比較 4-48
4.6 污水下水道揮發性有機物致癌風險評估 4-51
4.6.1 污水下水道各測點致癌風險 4-51
4.6.2 污水下水道各VOCs致癌風險 4-55
第五章 結論與建議 5-1
5.1 結論 5-1
5.2 建議 5-4
參考文獻 參-1
附錄A 各測點之人孔相關資料與降水量 附A-1
附錄B 71種VOCs之逸散量 附B-1
附錄C 作者簡歷 附C-1

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