環保專案成果報告查詢系統

專案計畫編號
經費年度	109
計畫經費	1,910 千元
預算科目	提升土壤及地下水污染調查及整治技術工作
專案開始日期	2020/01/06
專案結束日期	2020/12/31
專案主持人	謝季吟
主辦單位	環檢所
承辦人	李秋萍
執行單位	國立屏東科技大學
專案分類	環境監測及檢測
中文關鍵字	端足類、搖蚊、TRIAD、底泥品質指標
英文關鍵字	Amphipods, Chironomid, TRIAD, Sediment Quality Guidelines
協同主持人
共同主持人	王一匡
計畫聯絡人	謝季吟
計畫聯絡電話	08-7703202#7089
計畫聯絡信箱	chiying@mail.npust.edu.tw

中文摘要	本計畫透過使用TRIAD程序，整合化學方法(底泥品質指標公告之16種PAHs)、生物毒性(水蚤、搖蚊及端足蟲)和生態(豐度指標、歧異度指標及Hilsonhoff 科級生物指數)三大面向評估台灣不同地區，大安溪(DA1~DA3)及二仁溪(SYR、SY1及SY2)流域樣站於上下半季之底泥生態風險。本計畫上半年度採集之底泥樣品中PAHs分析結果顯示，六個樣站中16種PAHs檢測濃度均低於底泥品質指標下限值。下半年度除了SY2樣站檢出之Ant、DBA、 FLU及Phe四種PAH化合物介於底泥品質指標上下限值間，其餘均低於底泥品質指標下限值。底泥生物毒性試驗結果顯示，水蚤於SY2底泥離心孔隙水之存活率為30% (上半年度)及25% (下半年度)，其餘樣站水蚤存活率均高於80%。樣站DA1的不同毒性試驗試驗終點中僅有上半年度搖蚊慢毒性試驗具有毒性效應；樣站DA2於端足蟲慢毒性試驗終點之成長效應與控制組具有顯著差異(p<0.05)，慢毒性搖蚊試驗終點存活率也低於控制組20%，顯示對於長期暴露之生物具有成長毒性效應；端足蟲及搖蚊暴露於DA3樣站底泥之急慢毒性試驗終點均未呈現毒性效應，搖蚊暴露於二仁溪流域的三個樣站底泥慢毒性的存活率結果均與控制組具有顯著差異，且三種試驗生物暴露於SY2樣站之試驗終點除了搖蚊頭殼寬指標外，其餘與控制組均具顯著差異 (p<0.05)。生態調查部分，大安溪流域共記錄45科61種的水域生物；二仁溪流域共調查到40科55種的水域生物。經歧異度、均勻度、生物豐度指標、科級指數等生態評估指數計算結果顯示大安溪流域污染程度低於二仁溪流域。本計畫兩年度利用三大面向(化學、毒性和生態) 對底泥品質進行權重數據之整合性評估結果顯示，大安溪DA1~DA3樣站之底泥污染現況對水生生態系統產生之重大不利影響比例分別為0 %、25%及75%，且僅DA1樣站於一次評估結果(109年下半年度)顯示無不利之影響；二仁溪流域SYR、SY1及SY2樣站之底泥污染現況對水生生態系統產生之重大不利影響之比例分別為33%、100% 及100%，可得知二仁溪流域潛在生態風險比大安溪高，且兩條溪流污染程度均由上游往下游遞增趨勢。整體而言，TRIAD與現行主要關注在底泥品質指標值相較下，更可全方面且完整評估底泥中潛在污染物之污染現況及生態風險。
中文關鍵字	端足類、搖蚊、TRIAD、底泥品質指標

中文摘要

本計畫透過使用TRIAD程序，整合化學方法(底泥品質指標公告之16種PAHs)、生物毒性(水蚤、搖蚊及端足蟲)和生態(豐度指標、歧異度指標及Hilsonhoff 科級生物指數)三大面向評估台灣不同地區，大安溪(DA1~DA3)及二仁溪(SYR、SY1及SY2)流域樣站於上下半季之底泥生態風險。本計畫上半年度採集之底泥樣品中PAHs分析結果顯示，六個樣站中16種PAHs檢測濃度均低於底泥品質指標下限值。下半年度除了SY2樣站檢出之Ant、DBA、 FLU及Phe四種PAH化合物介於底泥品質指標上下限值間，其餘均低於底泥品質指標下限值。底泥生物毒性試驗結果顯示，水蚤於SY2底泥離心孔隙水之存活率為30% (上半年度)及25% (下半年度)，其餘樣站水蚤存活率均高於80%。樣站DA1的不同毒性試驗試驗終點中僅有上半年度搖蚊慢毒性試驗具有毒性效應；樣站DA2於端足蟲慢毒性試驗終點之成長效應與控制組具有顯著差異(p<0.05)，慢毒性搖蚊試驗終點存活率也低於控制組20%，顯示對於長期暴露之生物具有成長毒性效應；端足蟲及搖蚊暴露於DA3樣站底泥之急慢毒性試驗終點均未呈現毒性效應，搖蚊暴露於二仁溪流域的三個樣站底泥慢毒性的存活率結果均與控制組具有顯著差異，且三種試驗生物暴露於SY2樣站之試驗終點除了搖蚊頭殼寬指標外，其餘與控制組均具顯著差異 (p<0.05)。生態調查部分，大安溪流域共記錄45科61種的水域生物；二仁溪流域共調查到40科55種的水域生物。經歧異度、均勻度、生物豐度指標、科級指數等生態評估指數計算結果顯示大安溪流域污染程度低於二仁溪流域。本計畫兩年度利用三大面向(化學、毒性和生態) 對底泥品質進行權重數據之整合性評估結果顯示，大安溪DA1~DA3樣站之底泥污染現況對水生生態系統產生之重大不利影響比例分別為0 %、25%及75%，且僅DA1樣站於一次評估結果(109年下半年度)顯示無不利之影響；二仁溪流域SYR、SY1及SY2樣站之底泥污染現況對水生生態系統產生之重大不利影響之比例分別為33%、100% 及100%，可得知二仁溪流域潛在生態風險比大安溪高，且兩條溪流污染程度均由上游往下游遞增趨勢。整體而言，TRIAD與現行主要關注在底泥品質指標值相較下，更可全方面且完整評估底泥中潛在污染物之污染現況及生態風險。

中文關鍵字

端足類、搖蚊、TRIAD、底泥品質指標

類型	檔名	檔案大小	說明	最新版公開日期
期末報告	期末報告定稿本-20201204.pdf	3MB	期末報告	2021/1/1 上午 12:00:00

摘要	A TRIAD risk assessment project was carried out for the Daan (DA1~DA3) and Erren River (SYR, SY1 and SY2) basins, which included chemical analyses (16 regulated PAHs in sediment quality guidelines), toxicity (Daphnidae, Chironomidae, and Amphipoda), and ecological evaluations (evenness index, abundance index, diversity index, and Hilsonhoff family biological index). The main objective of this project was to understand the applicability of an integrated approach to assess the ecological risks from contaminated sediments in different regions of Taiwan during different seasons. For the dry season, the analytical results for 16 PAHs in all sediment samples were lower than the SQG-low values. In the wet season, the concentrations of the 13 PAHs were all below the SQG-low values, with the exception of four PAHs detected at site SY2, namely Ant, DBA, Flu and Phe with concentrations between the SQG-low and SQG-high values. The results of toxicity testing showed that (1) the survival rates of D. magna exposed to porewater at all sampling sites were greater than 80%; an exception was station SY2 with 30% mortality (dry season) and 25% mortality (wet season); (2) in the wet season, the endpoints of five different biological tests at sampling station DA1 revealed chronic toxicity effects only in C. riparius; (3) at station DA2, the effect of chronic toxicity on the growth of H. azteca was significantly different from the control group (p < 0.05), and the endpoint survival rate of the chronic C. riparius test were on average 20% lower than the control group; and (4) no toxic effects were shown during acute and chronic toxicity testing for H. azteca and C. riparius at station DA3. Except for head capsule width index of C. riparius at site SY2, the toxicological endpoints survival rate of the chronic toxicity test of C. riparius from the Erren River sites was significantly different from the control. In the ecological survey, four families and seven species of fish and 45 orders and 61 species of aquatic species were recorded from the Daan River. A total of 40 species belonging to 55 families were recorded from the Erren River. Ecological assessment indices such as Shannon-Weaver, Evenness, EPT, and the Hilsonhoff family were evaluated. Our results showed that the Daan River was relatively less polluted than the Erren River. In our survey, the three-tiers evaluation results of the integrated weight data for sediment quality (chemical, toxic, and ecological) showed that the frequency of the significant adverse effects on the aquatic ecosystem caused by sediment contamination at stations DA1~DA3 were 0 %, 25%, and 75%, respectively. Only one result showed no adverse effects at station DA1 during the wet season investigation in 2020. As for the Erren River, the sediment contamination indicated at SYR, SY1 and SY2 stations with 33%, 100%, and 100%, respectively, posed significant adverse effects, respectively. The results showed that the potential ecological risk for the Erren River watershed was higher than that of the Daan River watershed, and the pollution levels of both watersheds were increasing from the upstream to the downstream. Overall, compared to the traditionally used single aspect of sediment quality guideline, TRIAD can provide a more comprehensive and integrative contamination survey that combines chemical, toxicity, and ecological risk evaluations of sediments and their porewaters.
英文關鍵字	Amphipods, Chironomid, TRIAD, Sediment Quality Guidelines

摘要

A TRIAD risk assessment project was carried out for the Daan (DA1~DA3) and Erren River (SYR, SY1 and SY2) basins, which included chemical analyses (16 regulated PAHs in sediment quality guidelines), toxicity (Daphnidae, Chironomidae, and Amphipoda), and ecological evaluations (evenness index, abundance index, diversity index, and Hilsonhoff family biological index). The main objective of this project was to understand the applicability of an integrated approach to assess the ecological risks from contaminated sediments in different regions of Taiwan during different seasons. For the dry season, the analytical results for 16 PAHs in all sediment samples were lower than the SQG-low values. In the wet season, the concentrations of the 13 PAHs were all below the SQG-low values, with the exception of four PAHs detected at site SY2, namely Ant, DBA, Flu and Phe with concentrations between the SQG-low and SQG-high values. The results of toxicity testing showed that (1) the survival rates of D. magna exposed to porewater at all sampling sites were greater than 80%; an exception was station SY2 with 30% mortality (dry season) and 25% mortality (wet season); (2) in the wet season, the endpoints of five different biological tests at sampling station DA1 revealed chronic toxicity effects only in C. riparius; (3) at station DA2, the effect of chronic toxicity on the growth of H. azteca was significantly different from the control group (p < 0.05), and the endpoint survival rate of the chronic C. riparius test were on average 20% lower than the control group; and (4) no toxic effects were shown during acute and chronic toxicity testing for H. azteca and C. riparius at station DA3. Except for head capsule width index of C. riparius at site SY2, the toxicological endpoints survival rate of the chronic toxicity test of C. riparius from the Erren River sites was significantly different from the control. In the ecological survey, four families and seven species of fish and 45 orders and 61 species of aquatic species were recorded from the Daan River. A total of 40 species belonging to 55 families were recorded from the Erren River. Ecological assessment indices such as Shannon-Weaver, Evenness, EPT, and the Hilsonhoff family were evaluated. Our results showed that the Daan River was relatively less polluted than the Erren River. In our survey, the three-tiers evaluation results of the integrated weight data for sediment quality (chemical, toxic, and ecological) showed that the frequency of the significant adverse effects on the aquatic ecosystem caused by sediment contamination at stations DA1~DA3 were 0 %, 25%, and 75%, respectively. Only one result showed no adverse effects at station DA1 during the wet season investigation in 2020. As for the Erren River, the sediment contamination indicated at SYR, SY1 and SY2 stations with 33%, 100%, and 100%, respectively, posed significant adverse effects, respectively. The results showed that the potential ecological risk for the Erren River watershed was higher than that of the Daan River watershed, and the pollution levels of both watersheds were increasing from the upstream to the downstream. Overall, compared to the traditionally used single aspect of sediment quality guideline, TRIAD can provide a more comprehensive and integrative contamination survey that combines chemical, toxicity, and ecological risk evaluations of sediments and their porewaters.

英文關鍵字

Amphipods, Chironomid, TRIAD, Sediment Quality Guidelines