04112nas a2200385 a 4500 20260817163726.0 100531s2009 th uu|m rtt 0| a1eng d .b12077379 AIT Thesis no.EV-09-25 Oukham Phounpakone Assessment of water quality in Nam Kok River, Savannakhet Province, Lao PDR Pathum Thani, Thailand : Asian Institute of Technology, 2009 80 leaves : ill. + 1 online resource Thesis ; no. EV-09-25 A thesis submitted in partial fulfillment of the requirement for the Degree Master of Engineering in Environmental Engineering and Management Thesis (M.Eng.) - Asian Institute of Technology, 2009 Nam Kok river is one of the tributaries of Sebanghiang river which intern flows to the Mekong in the South-West of Savannakhet province, far from Savannakhet town of about 265 kilometer, lies between latitudes 16°42{u2019}123 N and 17°04{u2019}513 N. Longitudes 106°13{u2019}073E and 106°13{u2019}523 E.; with the total catchments area of 1326 km², and 78 km of length, its represents of 0.17% and 0.52% of catchments area of flow of the Mekong river respectively. It is an important habitat and settlement to earn the living to people of 45 villages and more than 31.000 peoples who are living along the river bank. It also became main sources of beneficially water to support to agriculture and industrial in the area. The objective of this study is to investigate the river water quality condition in Namkok and focus on to determined the basis parameter on water quality and analysis metal concentration contents in fish tissue. There are 16 aspects of parameters and two kinds of fish tissue: Rasbra atridosalis and Channa Gachua were use for analysis in this study. Base on Classification of allowable and standard. The results of monitoring and analysis verify that, existing river water quality in Namkok is in the medium condition (Class 3), it is suitable for agriculture and clean fresh surface water sources use for human consumption on, but passing through the ordinary treatment process before using. Catch per unit effort of fish species caught in Nam Kok river decreased in some location compared to previous survey. These impacts are probably from high fishing pressures in locations upstream, otherwise a small retaining weir constructed across the Nam Kok River were also the potentially impact on fish populations in the river, possible restriction of longitudinal fish migration The measured metal concentrations in fish tissue samples were not indicative of any potential for human health risk associated with consumption of those species. Copper, Manganese, and Cyanide exposure in downstream is potential to elevate levels in fish tissue and impacts are likely to be detected long before they become a problem or are irreversible. Water quality Laos Thammarat Koottatep, Chairperson Yakupitayage, Amararatne, Examination Committee Preeda Pakpian, Examination Committee Sweden (Sida Flexible program), Scholarship Donor Asian Institute of Technology. Thesis ; no. EV-09-25 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B02464 .b12077379 mnait u 240329 0 100531 m a u 0 mnait mnarc 22 40 Barcode : 30050120734990 CREATED : 2014-06-02 RECORD # : i12758437 LPATRON : 1026170 LCHKIN : 2016-08-19 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050160048574 CREATED : 2016-05-31 RECORD # : i13006484 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 9549 9549 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.EV-09-25 30050120734990 2026-08-17 16:37:26 3 2026-08-17 22 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.EV-09-25 30050160048574 2026-08-17 16:37:26 2026-08-17 40