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Analysis of Changing Trend of Fecal Coliform Levels at Lakes in Hue Citadel,Vietnam |
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| รหัสดีโอไอ | |
| Creator | 1. Nguten Minh Ky 2. Nguyen Hoang Lam |
| Title | Analysis of Changing Trend of Fecal Coliform Levels at Lakes in Hue Citadel,Vietnam |
| Publisher | Faculty of Environment and Resourdce Studies,Mahidol University |
| Publication Year | 2559 |
| Journal Title | Environment and Natural Resources Journal |
| Journal Vol. | 14 |
| Journal No. | 1 |
| Page no. | 1-7 |
| Keyword | Lakes,Change,Fecal Coliform,Hue Citadel,Mann-Kendall Trend |
| ISSN | 16865456;24082384 |
| Abstract | To determine changing trends of fecal contamination at TinhTam, CayMung, TanMieu and HoVe lakes in Hue Citadel (Vietnam), this reseach sampled and monitored the fecal coliform level every two months from March 2013 to November 2014. There were a total of 11 samples collected at each site. Samples were determined by MPN method and based on standards of APHA. Mann - Kendall non-parametric test was used to analyze and assess changing trends based on Theil - Sen slope using ProUCL 4.1 software. The monitoring results in the 21 month study period showed that fecal coliform level at lakes in Hue Citadel has large luctuations in rainy season (September, November). The result also indicated that fecal coliform level at TanMieu Lake is higher than at other lakes. By statistical analysis and Mann Kendall non-parametric test, the study indicated that there is a trend of increasing fecal coliform levels at HoVe lake (p<0.05). The changing trend rate of fecal coliform levels at HoVe lake is high at the value of 37.50 MPN/100ml/month (450.00 MPN/100ml/year). The long-term solution is to prevent discharge sources of fecal coliform bacteria running into lakes in Hue Citadel. |
