AI SearchIdentification of critical pollution areas in the Bagmati watershed using a GIS tool : (Record no. 57492)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04529nam a2200421 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818134206.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 011298s1998 th r 0000|0 eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11733652 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. EV-98-6 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pokhrel, Damodar |
| 245 10 - TITLE STATEMENT | |
| Title | Identification of critical pollution areas in the Bagmati watershed using a GIS tool : |
| Remainder of title | (a case study in Kathmandu, Nepal) |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1998 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 96 leaves |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-98-6 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1998 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | This research was conducted to define and identify the critical pollution area and sources in the Bagmati River watershed Kathmandu, Nepal. GIS technology was used to estimate the magnitude of the pollution generated from the major land use heterogeneity of the watershed. Digital elevation model (DEM) was made from the contour data to delineate streams and watershed boundary. Pollution source informations like population, livestock industry and land use was collected during the field survey. Individual administrative boundary was considered as the collection unit of the major pollutants loading of biochemical oxygen demand, nitrogen and phosphorus. The industrial, land use and living pollution were aggregated by the GIS overlay analysis capability to get the combined pollution load within the watershed. The contribution of pollution from each administrative unit to the Bagmati River was calculated and critical areas were defined with higher pollution load. An analysis was made to identify the major factors contributing to pollutant loading. The delivery ratio for each watershed was calculated from the generated and wash off load obtained for each watershed. Priority areas for the mitigation of the wastewater treatment was defined based on the potential load and the density of pollution. This research identified that Kathmandu, Lalitpur and Bhaktapur municipalities are the major polluting areas and living beings are the major factors of Bagmati River pollution. Delivery ratio for the watershed was found to vary from 40-60% for BOD and nitrogen but the delivery of phosphorus was exceptionally high due to cremation effect on the riverbanks. Land use and industry has very low contribution to the river pollution compared with the huge pollution load from the domestic wastewater. In the present context, even it is not recommended urgently to separate treatment system of industry but in future, the separate system should be considered by reflecting the situation of industrial waste pollution strength. So emphasis should be given to control the sewage and industrial waste by facilitating wastewater treatment plants for the mitigation of Bagmati River pollution especially in the urban area and onsite treatment promotion in the rural parts of Kathmandu valley. Considering pollution, political, religious and touristic value of the area, this study developed the priority-zoning map for mitigation of both nutrient and carbonaceous source treatments. |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Geographic information systems |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Pollution |
| Geographic subdivision | Nepal |
| -- | Kathmandu |
| General subdivision | Measurement |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ha, Sung-Ryong, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kaew Nualchawee, |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Takizawa, Satoshi, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | DAAD/Germany, |
| 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 | Thesis ; |
| Volume/sequential designation | no. EV-98-6 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B12734">http://203.159.5.9/ait-thesis/detail.php?q=B12734</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11733652 |
| b | mnait |
| c | y |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240407 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 981201 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | y |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120714596 |
| CREATED | CREATED : 1997-04-07 |
| RECORD Id | RECORD # : i12110504 |
| LPATRON | LPATRON : 1017019 |
| LCHKIN | LCHKIN : 2004-05-15 |
| RENEWALS | # RENEWALS : 0 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120714588 |
| CREATED | CREATED : 1997-04-07 |
| RECORD Id | RECORD # : i12110516 |
| LPATRON | LPATRON : 1015847 |
| LCHKIN | LCHKIN : 2003-02-02 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160078050 |
| CREATED | CREATED : 2016-05-23 |
| RECORD Id | RECORD # : i12987402 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
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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 | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. EV-98-6 | 30050120714596 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. EV-98-6 | 30050120714588 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no. EV-98-6 | 30050160078050 | 18/08/2026 | 18/08/2026 | 40-Archives |