“陳有蘭溪十八重溪匯流處下游”疏濬工程粒狀污染物排放係數推估

Estimation of the Fugitive Dust Emission Factor for Sand-Dredging the Chen-Yu-Lan River, Nantou County, Taiwan

李清華(Ching-Hwa Lee) ； 施俊安(Chun-An Shih) ； 方信雄(Shing-Shyong Fang) ； 林明德(Min-Der Lin) ； 林隆儒(Lung-Lu Lin) ； 秦丘翰(Ciou-Han Cin)

《科學與工程技術期刊》 3卷4期 (2007/12) Pp. 49-55

https://doi.org/10.7117/JSET.200712.0049

摘要

砂石疏濬工程衍生之粒狀污染物，常會嚴重影響週遭環境之空氣品質，為了解疏濬工程粒狀污染物的逸散情形，並推估疏濬工程粒狀污染物的排放係數，本研究乃選擇南投縣「陳有蘭溪十八重溪匯流處下游」疏濬作業現場作為調查對象，本研究於該疏濬作業場所進行總懸浮微粒(total suspended particle, TSP)與砂石車流量之現場監測，TSP之監測係於每各監測點以每一小時進行一點次監測，而車流量監測係於每各監測點以每一小時進行雙向共兩點次之監測，總計共監測TSP 60個點次與車流量120個點次，根據上述各項現場監測值，本研究計算推估出「陳有蘭溪十八重溪匯流處下游」疏濬工程之粒狀污染物排放係數為0.045 kg/立方公尺，亦即平均每疏濬1立方公尺之砂石會產生0.045kg之粒狀污染物。

關鍵字

疏濬 ； 逸散粉塵 ； 現地量測 ； 排放係數

並列摘要

Periodic dredging is needed to clean the sand and gravel deposited in a river; however, due to the associated dust emission problem, nearby residents typically complain profusely about the dredging process. To better understand dust emission behavior during the dredging procedure, the Chen-Yu-Lan River, Nantou County, Taiwan, was selected as the site for this study. The fugitive dust emission factor for dredging this river was calculated by on-site field measurements of the TSP (total suspended particulates) and the number of trucks. The results of this study indicate that the fugitive dust emission factor for dredging the Chen-Yu-Lan River is 0.045 kg/m^3, meaning that 0.045 kg of fugitive dust will be emitted for each 1 m^3 of sand during the procedure.

並列關鍵字

dredging ； fugitive dust ； field measurement ； emission factor