本研究為瞭解武洛溪人工溼地對內分泌干擾物質之去除效應,特別針對壬基苯酚單乙氧基醇(NP1EO)、壬基苯酚雙乙氧基醇(NP2EO)、壬基苯酚(4-n-NP)、辛基苯酚(4-OP)及雙酚A(BPA)等酚類化合物及天然及人工合成雌激素化合物如雌二醇(E2)、雌三醇(E3)及乙炔雌二醇(EE2)進行分析探討。本研究利用固相萃取搭配高層析液相層析儀/螢光檢測儀進行樣品檢測,以了解這些微量污染物質於溼地系統單元的宿命。結果顯示酚類化合物NP1EO、NP2EO、4-n-NP、4-OP及BPA之濃度分別為ND~1092.7、ND~37344.6、ND~6812.3、ND~10441.1及2.3~1517.1 ng/L,檢出率分別為68、68、40、80及100 %。天然及人工合成E2、E3及EE2之濃度分別為ND~316.7、ND~915.0及ND~226.0 ng/L,檢出率分別為32、88、及36%。整體而言,酚類化合物除了壬基苯酚外,其餘四種酚類化合物經由溼地處理後,濃度有明顯下降趨勢,表示武洛溪人工溼地具有去除酚類化合物之作用。另外,雌激素化合物經由武洛溪人工溼地的處理後並沒有顯著去除效果。利用風險商數評估內分泌干擾物質可能造成的生態危害性方面,酚類化合物NP1EO、NP2EO、4-n-NP、4-OP及BPA其風險商數大於1的比例分別為24、20、16、60及8%,其中4-OP風險商數大於10的比例為20%為最高;而天然及人工合成雌激素E2、E3及EE2風險商數大於10的比例分別為32、88及36%。由此得知,溼地生物受到這些內分泌干擾物質情形已非常嚴重。另外,在利用WASP/EUTRO模式針對水質現場資料進行參數檢定與驗證,結果顯示模擬值與實測結果具有相同的趨勢,未來可作為管理單位設計溼地處理單元及水質改善決策的參考工具。
The occurrence and distribution of endocrine disruptors, including phenolic compounds such as nonylphenol-mono-ethoxylate(NP1EO), nonylphenol-di-ethoxylate (NP2EO), 4-n-nonylphenol (4-n-NP), 4-octylphenol (4- OP), bisphenol A (BPA) and estrogenic compounds 17β-estradiol (E2), estriol (E3) and 17α-ethinylestradiol (EE2) in Wuloo constructed wetland. The water samples were collected and extracted using solid phase extraction (SPE) and the qualitative and quantitative analysis were performed by the high performance liquid chromatography/ fluorescence detector (HPLC/FL). The results indicated the detection rates for NP1EO, NP2EO, 4-n-NP, 4-OP, BPA, E2, E3 and EE2 were 68, 68, 40, 80, 100, 32, 88 and 36 %, respectively.The phebolic compounds (NP1EO, NP2EO, 4-n-NP, 4-OP and BPA) were found concentrations ranged from ND~1092.7, ND~ND~37344.6, ND~6812.3, ND~10441.1 and 2.3~1517.1 ng/L in 25 samples collected. Natural and synthetic estrogens (E2, E3 and EE2) were found concentrations ranging from ND~316.7, ND~915.0 and ND~226.0 ng/L in 25 samples.The results showed that phenolic compounds except 4-n-NP were significantly removed by the wetland system. However, removal efficiencies of estrogenic compounds in the Wuloo constructed wetland were substantial. Overall, the calculated of risk quotient(RQ) showed the values higher than 1 were obtained for NP1EO(24%), NP2EO(20%), 4-n-NP(16%), 4-OP(60%) and BPA(8%) from tested samples while the ratio higher than 10 were obtained from 4-OP(20%), E2(32%), E3(88%) and EE2(36%). In addition, the use of the WASP / EUTRO model to predict the spatial variation trend for select water quality parameters indicated that the model results can be used to quantify the removal efficiencies of comtanimants in the wetland.