固定污染源毒性空氣污染物(戴奧辛及重金屬)排放清冊調查及管制計畫
| 中文摘要 | 本計畫主要工作內容包括：排放清冊更新與建置、排放檢測與環境監測、法規研修與檢討、行政及技術支援等四大部分，主要工作成果說明如下；推估95年排放至大氣中的戴奧辛排放量平均為85.6 g I-TEQ/年，較94年130.6 g I-TEQ/年，減少35%；排放量較大業別為電弧爐及燒結工場。至於重金屬部份，鉛排放量約為9.13噸/年、鎘排放量約為0.959噸/年、汞排放量約為1.290噸/年及砷排放量約為3.647噸/年；與94年度相較，變化不大，以燃煤鍋爐、電弧爐、廢棄物焚化爐及水泥旋窯為主要排放源。 排放檢測部分，「煉鋼業電弧爐戴奧辛管制及排放標準」0.5 ng TEQ/Nm3標準值於96年起生效；稽查結果發現，中龍鋼鐵公司超過管制標準值；重金屬部份針對燃煤汽電共生鍋爐及非鐵金屬冶煉業為主，以暸解國內現況及建置本土化排放係數為主，檢測濃度遠低於「固定污染源空氣污染物標準」。 環境空氣戴奧辛監測部分，本(96)年度以一縣市、一測站為原則，監測頻率為每季監測一次；戴奧辛濃度範圍0.003 pg I-TEQ/m3 ~ 0.210 pg I-TEQ/m3，平均濃度值為0.057 pg I-TEQ/m3，以空品區而言，以中部空品區及雲嘉南空品區較高；以縣市來分析，在空氣品質不良季節，以台中縣、市濃度最高。監測結果亦顯示中部、南部環境空氣戴奧辛濃度受季節變化十分明顯，北部地區濃度則不受季節變化影響。 環境空氣重金屬監測部份，本計畫以PM10採樣器及石英玻璃纖維濾紙進行24連續採樣；監測結果顯示，國內環境空氣砷、鎘、鎳濃度皆低於歐盟2012年環境空氣品質基準，由監測數據可以發現，中部、雲嘉南、花東及高屏空品區，冬季環境空氣重金屬濃度明顯高於夏季，與戴奧辛監測結果類似；北部空品區重金屬濃度變化則不明顯。 依據控制技術分析、參考國外相關管制標準及風險評估，研擬鋼鐵業集塵灰高溫冶煉設施重金屬管制標準，建議汞排放標準值為0.05 mg/Nm3。落塵戴奧辛周界濃度建議為100 pg TEQ/m2/day。 | ||
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| 中文關鍵字 | 戴奧辛,重金屬,環境監測 | ||
基本資訊
| 專案計畫編號 | EPA-96-FA12-03-A115 | 經費年度 | 096 | 計畫經費 | 13520 千元 |
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| 專案開始日期 | 2007/04/01 | 專案結束日期 | 2008/03/31 | 專案主持人 | 陳怡伶 |
| 主辦單位 | 空保處 | 承辦人 | 吳正道 | 執行單位 | 中興工程顧問股份有限公司 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | EPA96FA1203A115.PDF | 6MB | [期末報告]公開版 |
The project of emission inventory investigation and draft control strategy for air toxic pollutants (Dioxins and heavy metals) from the stationary sources
| 英文摘要 | The scope of work for this project includes: 1) emission inventory establishment (or updating) for dioxin and heavy metals; 2) field investigation or monitoring for stationary emission and the ambient environment; 3) drafting, reviewing or amending the emission standard; 4) providing the technique and administrative assistance for the EPA . The results of this project are described as below: The total dioxin emission in Taiwan area is estimated to be 85.6 g-TEQ in 2006. This is 35% less than 2005. The major pollution sources include the electric arc furnaces and sinter plants. As for the heavy metal parts, the total lead emission is estimated to be 9.13 metric tons, cadmium emission is 0.959 metric tons, mercury emission is 1.29 metric tons and arsenic emission is 3.647 metric tons in 2006. The major emission sources include the coal electric utilities, electric arc furnace, waste incinerators and cement kiln. As for the dioxin emission investigation, the existing dioxin emission standard for electric arc furnace is 0.5 ng-TEQ/Nm3, which has been effective since January 1, 2007. Based on the auditing data, Dragon Steel Ltd. did not comply with the emission standard. As for the heavy metals, this study intent to establish the local emission factors and investigate the existing situation in Taiwan. The coal industry boilers and the secondary non-ferrous smelters are two major targets in this project. Based on the investigation data, the emission concentration are far below current standard according to “Standard pollution source air pollutant emissions standards”. For the ambient dioxin monitoring, one monitoring station was selected for one city. The monitoring frequency is once every season. The results showed that the ambient dioxin concentration ranged from 0.003 pg I-TEQ/m3 to 0.217 pg I-TEQ/m3, the average concentration is 0.057 pg I-TEQ/m3. The Central air quality control area and the Yun-Chia-Nan air quality control areas were the two air quality control areas with higher ambient dioxin concentration. During the poor air quality season, the TaiChung county and TaiChung city were detected with higher ambient dioxin concentration. Based on the monitoring data, the ambient dioxin concentration in central and southern area is apparently varied with seasonal change. However, no apparent seasonal variation was observed in Northern area. For the ambient heavy metal monitoring, the 24-hours continuously samplers were set and PM10 samples were collected on pr-weighed glass fibre filter papers. Based on the monitoring results, the heavy metal concentration of Arsenic, Cadmium and Nickel are below the European ambient quality standard. Based on the monitoring data, the ambient heavy metal concentration in the Central, Yun-Chia-Nan, Hua-Dung, Kao-ping air quality control area is higher in winter compared with the numbers in summer. These results are consistent with the ambient dioxin monitoring. The heavy metal concentration in Northern did not varied by seasonal changes. According to technology feasibility, foreign legislation status and risk assessment, the draft ”Heavy metal emission standard of the ashes thermal refining facility for steel industry” was prepared. This recommends the mercury emission standard to be set at 0.05 mg/Nm3; and the dioxin deposition standard of peripheral boundary to be set at 100 pg TEQ/m2/day. | ||
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| 英文關鍵字 | Dioxin, Heavy metal, Environmental Monitoring | ||