The investigation and risk analysis of the particulate emission from an industrial site

• Main Authors: Guan-Ching Wu, 吳冠慶
• Other Authors: Cheng-Nan Chang
• Format: Others
• Language: en_US
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/11407559411935384654

碩士 === 東海大學 === 環境科學與工程學系 === 97 === The rapidly industrialized and urbanized areas show an ascending trend of both trace metals and various diverse effects on human health. In Taiwan, there are several science-based industrial parks, which generate tremendous high value-added export products, meanwhile they also may emit unknown substances into both air and water bodies. This study conducted a survey program, between Sep. 2004 and Dec. 2008, at the central Taiwan science park (CTSP) in Taiwan. Since the CTSP is under construction during the initial sampling period, therefore, the investigated data may cover the pollution before and after the operation of CTSP. This project allocates the sampling sites cover the upstream and downstream of the emission sources according to the wind direction. The atmospheric particulate is collected through high volume air samplers with quartz filter under the initial air flow rate of 200 L min-1 for 24 hours. The digested filter samples were analyzed by either flame or graphite type furnace of atomic absorption spectrophotometer. Eleven elements, arsenic, iron, manganese, copper, cadmium, calcium, zinc, lead, magnesium, nickel and chromium were included in this study. The principal component analysis (PCA) method was adapted to simulate the heavy metal source identification. Industrial source complex short term-3 (ISCST3) model was adapted to simulate the TSP dispersion phenomena. It indicates that a significantly reduce trend of TSP value is found based on the investigation, except 2005. According to PCA analysis, it points out several potential pollutants which located in this site. The simulation results from ISCST3 model identify the pollution dispersion to different places around CTSP. It also can apply to predict the optima sampling sites based on the on-site climate information. In exposure assessment, the average Cr concentration found in TSP potentially may cause high carcinogenic risk.