AI SearchAbundance and spatial distribution of microplastics in the Lower Chao Phraya River (Record no. 997)
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| 005 - DATE AND TIME OF LATEST TRANSACTION | |
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| fixed length control field | 220428s2021 th uu m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12382206 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT RSPR no.MPA-21-11 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Tutor, Jasmin Tumanda |
| 245 10 - TITLE STATEMENT | |
| Title | Abundance and spatial distribution of microplastics in the Lower Chao Phraya River |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2021 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 80 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Research studies project report ; |
| Volume/sequential designation | no. MPA-21-11 |
| 500 ## - GENERAL NOTE | |
| General note | A research study submitted in partial fulfillment of the requirements for the degree of Master in Marine Plastics Abatement |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Research studies project report (M.) - Asian Institute of Technology, 2021 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Studies on MP contamination in freshwater environments are relatively scarce compared to that of marine environments. This is especially true for freshwater environments in Asia. In this research, the MP abundance, spatial distribution, and variability were studied in order to gain a better understanding of MP occurrence in the Chao Phraya River, an important river system in Thailand. Samples of microplastics were taken using a device called Albatross along the lower Chao Phraya River covering the provinces of Pathum Thani, Nonthaburi, and Bangkok. To assess their vertical distribution, samples were also taken at 30 cm and 60 cm depths at the most upstream and downstream sites of the study area. Samples were pre-treated through wet peroxide oxidation and density separation. A microscopic examination was conducted to categorize MPs based on size, morphology, and color. MPs were analyzed through FTIR to identify their polymer types. MP abundance ranged from 2.92 to 35.53 n/m3 with a mean abundance of 9.84 n/m3 . Fibers were the most abundant upstream and fragments were most observed downstream. MP abundance were higher in more urbanized areas and on surface level. It tends to decrease as depth increases. Majority of the MP were small-sized (0.5-1 mm) and medium-sized (1-2.5 mm). Most MPs were found to be transparent and white and PET, PE, and PP were the most observed polymer types. This is the first study that comprehensively explored the vertical and horizontal distribution of size, shapes, colors, and polymer types of MP in the surface water level of the lower Chao Phraya River. Future studies may explore on other areas on the river to provide a more thorough understanding of MP contamination in the Chao Phraya River. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Microplastics |
| Geographic subdivision | Thailand |
| -- | Lower Chao Phraya River |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Xue, Wenchao, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Visvanathan, C., |
| Relator term | Examination Committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ho Huu Loc, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Government of Japan, |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Research studies project report ; |
| Volume/sequential designation | no. MPA-21-11 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B16279">http://203.159.5.9/ait-thesis/detail.php?q=B16279</a> |
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| Cataloger's initials, CIN (RLIN) | 220428 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type | Barcode | Copy number | Cost, normal purchase price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT RSPR no.MPA-21-11 | 17/08/2026 | 17/08/2026 | 67-Electronic Resource | |||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT RSPR no.MPA-21-11 | 17/08/2026 | 17/08/2026 | 40-Archives | 30050120884753 | 1 | |||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | AIT RSPR no.MPA-21-11 | 17/08/2026 | 17/08/2026 | 20-AIT Publication | 30050121023492 | 1 | 50.00 | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | AIT RSPR no.MPA-21-11 | 17/08/2026 | 17/08/2026 | 20-AIT Publication | 30050121023484 | 2 | 50.00 |