| 摘要: | 本研究是以台灣台南縣市轄區內十一家曙U廚房煙道廢氣進行多環芳香烴化合物（PAHs）之採樣及分析。藉由PAHs煙道採樣系統進行十一家曙U廚房煙道採樣，包含氣相與粒狀物相兩種PAHs的樣品。二十一種個別PAHs以氣相層析質譜儀（GC/MS）分析，並比較不同類型曙U排放PAHs濃度及各種廢氣防制設備之減量效益。
研究結果顯示，十一家曙U廚房煙道廢氣中之PAHs以氣相為主，以質量分佈而言，氣相所佔之總PAHs百分比為74.5％。十一家曙U之總PAHs濃度介於39.5~450 μg/Nm3之間，平均值為120 μg/Nm3；ΣHM-PAHs濃度介於15.9~207 μg/Nm3之間，平均值為38.7 μg/Nm3；具高致癌潛能之BbF＋BaP＋DBA之濃度則介於5.34 ~ 21 μg/Nm3之間，平均值為14.4 μg/Nm3；Total-BaPeq毒性當量濃度範圍介於7.79~14.9 μgBaPeq/Nm3，平均值為11.4 μgBaPeq/Nm3。十一家曙U當中以日式燒烤曙UTotal-PAHs、ΣHM-PAHs、BbF＋BaP＋DBA、Total-BaPeq最高，速食曙U次之，中式曙U再次之，西式曙U為最低。各類別曙U之Total-PAHs排放係數以日式燒烤（4130 mg/L-油）為最高，其次是速食（3010 mg/L-油），中式曙U再次之（772 mg/L-油），西式曙U最低（215 mg/L-油）。兩種煙道廢氣處理設備其Total-PAHs去除效率以濕式靜電集塵器最高，去除範圍為60.0％~69.8％。
The oily cooking fumes, one of major air pollutants emission resources, were investigated on PAH and its BaPeq emission in this study. Smoke samples from the exhaust of kitchens including Chinese, Japanese and western restaurants, in both gas and particulate matter phases, were collected and analysed for 21 PAHs by GC/MS.
The results revealed that PAH has mass distribution of 74.5% mainly in gas phase from the exhaust of 11 restaurants. The range of total PAHs concentration is between 39.5 ~ 450 μg/Nm3, and the average is 120 μg/Nm3. Simultaneously, the concentration of ΣHM-PAHs (5-, 6- and 7-rings) is between 15.9 ~ 207 μg/Nm3, and the average is 38.7 μg/Nm3. However, with individual highest carcinogenic potential of the BbF+BaP +DBA concentration is between 5.34 ~ 21.0 μg/Nm, the average is 14.4 μg/Nm3; total-BaPeq concentration range is 7.79~14.9 μgBaPeq/Nm3, and the average is 11.4 μgBaPeq /Nm3. Among 11 restaurants, Japanese- style barbecue restaurant has the highest total-PAHs, ΣHM-PAHs, BbF+BaP+DBA, total BaPeq emission concentration, and following by fast-food restaurant, a Chinese restaurant , and Western-style restaurant. Also different type of Restaurants, their total-PAHs emission factor for Japanese-style barbecue (4130 mg/L-oil) is the highest, and followed by fast food (3010 mg/L-oil), a Chinese restaurant (772 mg/L-oil), Western-style restaurants has the lowest emission factor (215 mg/L-oil) among those restaurants. Finally, The collection efficiency for Flue gas control equipment including pilot-scale ESP and wet scrubber are between the range of 60.0% to 69.8% for PAH removal.. |
