Quantification of seasonal variations in contributing sources to particulate pollution in Pathumthani using receptor modeling tool | |
| Author | Manisa Tepbanchaporn |
| Call Number | AIT Thesis no.EV-13-11 |
| Subject(s) | Particles--Environmental aspects--Thailand--Pathum Thani Air--Pollution--Thailand--Pathum Thani |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Environmental Engineering and Management |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. EV-13-11 |
| Abstract | The 24-h sampling of coarse (PM10-2.5) and fine (PM2.5) particles was conducted at AIT by two dichotomous samplers. The sampling period was started from 21 August to 15 October 2012 (wet season) and 17 October 2012-3 January 2013 (dry season). Overall, 7 and 23 samples were collected in wet and dry season, respectively. QA/QC operation was conducted throughout the sampling and analysis works. The samples were analyzed for mass (by microbalance), composition of BC (by Smokestain reflectometer), ion (5 cations and 4 anions by IC) and elements (7 elements by ICP-OES). The average concentrations of these components were compiled and analyzed for contribution sources by CMB8.2 receptor model. This study also reanalyzed the compositions data collected at AIT during the period of (2005-2010) were also used to supply into the CMB8.2 model. The model outputs for 2012 showed that the major source that contributed to fine fractions was traffic which contributed up to 86 and 64% of calculated mass in wet and dry seasons, respectively. The other sources were also found to be major sources such as biomass and (NH4)2SO4. Biomass contributed 7% to the fractions in both seasons whereas (NH4)2SO4 contributed 5 and 16% of the calculated mass in wet and dry seasons, respectively. Similar to the fine fraction, the major source that contributed to coarse fraction was traffic. The traffic source contributed up to 66 and 49% of the calculated mass in wet and dry seasons, respectively. Construction and sea salt ranked second and third places in the source contribution. The construction gave 32 and 48% while sea salt gave 2 and 3% of the calculated mass in wet and dry seasons, respectively. The results of source apportionment from the previous year (2005-2010)indicated that the major sources of both fractions of all time were traffic and biomass. While the other sources (e.g. industrial, secondary sulfate and nitrate) were also contributed to the receptor site with fluctuated trends. In addition, in coarse fraction, construction was also found to contribute significantly to the receptor site of all time. |
| Year | 2013 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Nguyen, Thi Kim Oanh; |
| Examination Committee(s) | Visvanathan, C.;Thammarat Koottatep;Prapat Pongkiatkul; |
| Scholarship Donor(s) | Royal Thai Government;Asian Institute of Technology Fellowship; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2013 |