PM2.5 LEVELS HIGH IN CENTRAL TAIWAN|中部空氣品質糟 彰化.員林PM2.5紫爆

Air quality has been pretty bad in central Taiwan for the past few days and will likely remain so in the next few days. In several cities, PM2.5 levels have gone through the roof. Experts say that persistent downdraft coupled with an enclosed topography are the reasons why air-borne pollutants have been trapped at low altitudes. The air quality in Yuanlin of Changhua County was terrible. The sky was foggy and the sun could barely be seen. An elementary school had mobile air quality monitoring station parked for measuring PM2.5 indexes. However students were still jogging at the field, some parents showed concerns over the issue. ==ELEMENTARY SCHOOL DIRECTOR== Our case personnel took a day off. The flag of air quality alert was not changed. The school failed to announce class shifts. Changhua in the past few days also had smoggy sky. The air qualities in Changhua and Yuanlin reached hazardous index. In Taichung, the index reached unhealthful level. As well as in Fengyuan, its PM2.5 had reached hazardous level, too. Environmental expert said, the bad air quality is related with settlement airflows and topography. ==CHUANG PING-CHIEH, Environmental Engineering Prof., Nat'l Chung Hsing Univ.== The settlement airflow is like a lid. Pollutants were released in the basin, and airflows could not get through the lid. This is one of the major reasons of climate change. PM2.5 kept on accumulating in Nantou County's Puli, Jhushan and Taichung's Fengyuan. According to Taichung Environmental Protection Bureau, 30% of the pollution came from motor vehicles; while Dragon Steel and Taichung Power Plant contributed another 10% air pollutions. ==BAI ZHI-RONG, Taichung Environmental Protection Bureau== There were six monitoring stations and they were all red alerts. Taiwan Power Company must prepare entering warning phase. If all six monitoring stations were showing purple level, then the Taiwan Power Company must lower its output. The air pollution in the central Taiwan is hard to solve within a short time. Before the governments making efforts for improvement, people only can passively protect themselves. TRANSLATED BY：ANTHONY LIN 天氣灰濛濛，幾乎看不到太陽，彰化員林的空氣品質糟得嚇人，國小旁邊後方擺放著移動式空品監測機組，要測PM2.5的濃度，但學生還是在戶外上體育課跑步，讓家長很擔心。 ==國小主任== 我們的承辦人剛好請假 在下午的時間旗幟未更換 學校對於小朋友的作息 也沒去宣布 彰化地區這幾天都是霧茫茫；入秋以來，這幾天彰化和員林的空汙指數都是危險等級，而在台中也有好幾個測站，達到不良以上，其中豐原的PM2.5，每立方公尺超過71微克，已經在紫爆的危險等級，環保專家解釋，中部空品差，和沉降氣流，以及地形有很大關係。 ==中興大學環工系教授 莊秉潔== (沉降氣流)像一個蓋子 所以汙染物在盆地排放出來 沒辦法衝過這蓋子 這是一個主要氣象變化原因 PM2.5不斷蓄積沉降在南投埔里、竹山、台中豐原等地；而根據台中市環保局的調查，汙染源除了汽機車的移動汙染占三成，中龍鋼鐵和台中火力發電廠，更是占了空汙比例一成。 ==台中環保局長 白智榮== 有六個測站 是紅色的 台電就必須要預備 要進入預警階段 如果達到 六站是紫色狀態 就必須要啟動降載 中台灣空汙的源頭，一時間難以有效解決，沒有明顯改善之前，民眾只能先消極的做好自我防護。 記者 林健生 賴世杰 台中彰化報導