行政院環境保護署 環保專案成果報告查詢系統

099

6,580 千元

2010/12/08

2011/12/07

涂良君

臺南市政府環境保護局

汪宗奮

富立業工程顧問股份有限公司

環境監測及檢測

環境監測、重金屬

Environmental monitoring,Heavy metals

林徽雅

04-23585953#153

hylin@freeair.com.tw

本計畫的執行目標為調查臺南市大氣中周界粒狀物重金屬濃度分布概況及重金屬污染源、排放量，並應用受體模式與擴散模式分析臺南市周界重金屬之貢獻源，綜合排放源資料庫與周界檢測之結果，進而研擬未來之管制策略。 臺南市重金屬調查作業方面，首先依據環保署計畫中主要排放重金屬之製程別篩選出 70 家次公私場所，本年度已完成 70 家次現場調查作業，由70 家次現場調查結果推估 99 年度重金屬排放量，其中台南市鉛主要污染程序為電弧爐煉鋼程序及鍋爐發電程序；鎘污染排放主要為電弧爐煉鋼程序及鍋爐發電程序；砷污染排放主要為鋁二級冶煉程序及鍋爐發電程序。 本計畫於 100 年 2 月、4 月、8 月及 9 月分別進行 7 個測站周界重金屬檢測作業，共計完成 28 點次粒狀物(二階式衝擊板)及 7 點次cascade(MOUDI™)採樣作業，另進行 2 根次排放管道重金屬檢測作業。根據本計畫採樣結果顯示，周界粒狀物(PM10)重金屬鉛、鎘、砷及鎳之歷次測值的均值皆低於歐盟建議年平均值。 由本計畫推估的固定污染源排放量作為模式模擬臺南市重金屬污染物擴散之引用參數，其模擬結果顯示重金屬鉛最大受體點位於永康區；重金屬鎘最大受體點位於永康區及山上區；重金屬砷最大受體點位於南科臺南園區。以模擬結果及周界檢測結果交叉評估本計畫重金屬排放量掌控之完整度，重金屬砷排放量掌握程度較完整，其次為重金屬鎘，而重金屬鉛排放量有顯著低估之情形。

環境監測、重金屬

期末報告.pdf

0MB

2012/5/1 上午 12:00:00

The aim of this project is to assist in stipulating a regulation to control the emission of heavy metals in the future. An emission database was constructed, containing the data of (1) distribution analysis, (2) contaminant source investigation and (3) emission amount measurement of seven heavy metals. On the other hand, both receptor (CMB) and diffusion (AERMOD) model were applied for contributor analysis in the surrounding area of Tainan City. Strategy of heavy metal control would be developed according to the combining results of emission database and modeling. With respect to the survey of heavy metal emission by stationary pollution sources, field survey from 70 candidates indicated that the emission amount of lead, cadmium, and arsenic was 0.248, 0.021, and 0.068 ton respectively until June, 2011. Furthermore, results also showed that the main contributor for lead was electric-arc furnace (EAF) steelmaking process; for cadmium was both EAF steelmaking process and power generation process by boiler; for arsenic was secondary aluminum smelting process. In addition, seasonal samplings, including particles and cascade, in 7 stations during February, April, August, and September, 2011 and another 2 samplings in the funnel was conducted. From the analysis results, concentration of lead, cadmium, arsenic, and nickel was all below the recommended annual standard from EU (6×10-3μg/m3). For the results of modeling, the receptor site with maximum concentration of lead was Yong Kang Dist.; with maximum concentration of cadmium were both Yong Kang and Shan Shang Dist.; with maximum concentration of arsenic was Tainan Science Park of Southern Taiwan Science Park. However, for the integrity of confirming the heavy metal emission by combining the results from modeling and sampling, arsenic showed the highest integrity followed by cadmium and lead. The estimation of lead emission was obviously underestimated.

Environmental monitoring,Heavy metals