สืบค้นงานวิจัย
Source-receptor modelling of particulate matters in Mae Moh area
Arpa Wangkiat - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Source-receptor modelling of particulate matters in Mae Moh area
ผู้แต่ง / หัวหน้าโครงการ (EN): Arpa Wangkiat
บทคัดย่อ (EN): To characterise the atmospheric aerosol in Mae Moh Thailand, and source apportionment study, including a field sampling program. was conducted. Thirty-one samples of PMlo were collected by Dichoton~ous air samplers at Ban Hua Fai air monitoring station during January-April 2001. The monitoring station was situated near Mae Moh coal-fired power plant and its mining facilities. Other possible sources of aerosol were also collected for chemical speciation, including aerosol from agriculture field burning. straw burning, forest leaf burning. heavy duty truck exhaust. paved road dust. soil. agriculture soil, coal, electrostatic precipitator ash, and stack samples from the power plant. Elemental. ion, and carbon compositions of these sources and ambient samples were then analysed by ICP-MS. IC. and CHNSIO analyser, respectively. Organic carbon and soluble potassium were highest in biomass burning aerosol. Ratios of OCITC and K+/K were good markers for this aerosol. Of biomass burning samples. it was found that agricultural aerosol contained significantly high K. Truck aerosol contained highest elemental carbon (EC). However. Earth's crust related samples (soil, road dust and fly ash) contained high amounts of Al. K. Mg. Ca. and Fe. Fine aerosol of stack samples contained high Na and Zn. Carbon could be detected in stack samples but not in ESP fly ash. This was because elemental carbon has small particle size and was not captured by ESP. Source apportionment was conducted using both factor analysis-multiple regression (FA-MR) and Chemical Mass Balance (CMBx) receptor models. The major sources of aerosol at the monitoring station were estimated to be biomass burning, automobile. soil. road dust. and secondary particles. Both FA-MR and CMB8 predicted similar contributions of biomass burning and automobile. However. the CMB8 model over estimatcd thc actual soil and road dust contribution. This may be because the unexplained mass in the I-A-MR model (20.9%) is most likely associated with this category or other geological material.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): http://dcms.thailis.or.th/dcms/dccheck.php?Int_code=54&RecId=7943&obj_id=22610
เผยแพร่โดย (EN): มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี
คำสำคัญ (EN): Source apportionment
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี
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