Bioassessment of dry season water quality in the Ping River around Chiang Mai city, Thailand
© 2015 Chiang Mai University. All rights reserved. A longitudinal transect along the Ping River around Chiang Mai city was made during the dry season of 2010 to assess the extent and location of human impacts on water quality. The grab samples showed water quality within the urban area was poorer th...
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th-cmuir.6653943832-541402018-09-04T10:26:04Z Bioassessment of dry season water quality in the Ping River around Chiang Mai city, Thailand Tomoaki Itayama Peter R. Hawkins Pongpan Leelahakriengkrai Songyot Kullasoot Niwooti Whangchai Chanagun Chitmanat Yuwadee Peerapornpisal Zen'ichiro Kawabata Biochemistry, Genetics and Molecular Biology Chemistry Materials Science Mathematics Physics and Astronomy © 2015 Chiang Mai University. All rights reserved. A longitudinal transect along the Ping River around Chiang Mai city was made during the dry season of 2010 to assess the extent and location of human impacts on water quality. The grab samples showed water quality within the urban area was poorer than upstream. However, physico chemical analyses did not differentiate levels of human disturbance in weir affected by the urban development. Bioassessment using benthic diatoms and littoral macroinvertebrates did differentiate sites within the city and showed the lower Chonlakhan Pinij weir pool was the most disturbed site. Regional biotic indices for macroinvertebrates ((BMWPTHAI) and diatoms (Mekong Disturbance Index) were more reliable and discriminating than local (Ping River) the indices. Overall, the grab sample data showed dry season water quality in the upper (Tha Wang Tan) weir pool within the Chiang Mai city has improved over the past twenty years. But the health of the Ping River downstream of the Mae Kha discharge likely deteriorated over the same period. Future water pollution control efforts around Chiang Mai should consider the impact of the Mae Kha canal on the Ping River. 2018-09-04T10:08:22Z 2018-09-04T10:08:22Z 2015-04-01 Journal 01252526 2-s2.0-84928664264 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84928664264&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/54140 |
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Biochemistry, Genetics and Molecular Biology Chemistry Materials Science Mathematics Physics and Astronomy |
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Biochemistry, Genetics and Molecular Biology Chemistry Materials Science Mathematics Physics and Astronomy Tomoaki Itayama Peter R. Hawkins Pongpan Leelahakriengkrai Songyot Kullasoot Niwooti Whangchai Chanagun Chitmanat Yuwadee Peerapornpisal Zen'ichiro Kawabata Bioassessment of dry season water quality in the Ping River around Chiang Mai city, Thailand |
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© 2015 Chiang Mai University. All rights reserved. A longitudinal transect along the Ping River around Chiang Mai city was made during the dry season of 2010 to assess the extent and location of human impacts on water quality. The grab samples showed water quality within the urban area was poorer than upstream. However, physico chemical analyses did not differentiate levels of human disturbance in weir affected by the urban development. Bioassessment using benthic diatoms and littoral macroinvertebrates did differentiate sites within the city and showed the lower Chonlakhan Pinij weir pool was the most disturbed site. Regional biotic indices for macroinvertebrates ((BMWPTHAI) and diatoms (Mekong Disturbance Index) were more reliable and discriminating than local (Ping River) the indices. Overall, the grab sample data showed dry season water quality in the upper (Tha Wang Tan) weir pool within the Chiang Mai city has improved over the past twenty years. But the health of the Ping River downstream of the Mae Kha discharge likely deteriorated over the same period. Future water pollution control efforts around Chiang Mai should consider the impact of the Mae Kha canal on the Ping River. |
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Journal |
author |
Tomoaki Itayama Peter R. Hawkins Pongpan Leelahakriengkrai Songyot Kullasoot Niwooti Whangchai Chanagun Chitmanat Yuwadee Peerapornpisal Zen'ichiro Kawabata |
author_facet |
Tomoaki Itayama Peter R. Hawkins Pongpan Leelahakriengkrai Songyot Kullasoot Niwooti Whangchai Chanagun Chitmanat Yuwadee Peerapornpisal Zen'ichiro Kawabata |
author_sort |
Tomoaki Itayama |
title |
Bioassessment of dry season water quality in the Ping River around Chiang Mai city, Thailand |
title_short |
Bioassessment of dry season water quality in the Ping River around Chiang Mai city, Thailand |
title_full |
Bioassessment of dry season water quality in the Ping River around Chiang Mai city, Thailand |
title_fullStr |
Bioassessment of dry season water quality in the Ping River around Chiang Mai city, Thailand |
title_full_unstemmed |
Bioassessment of dry season water quality in the Ping River around Chiang Mai city, Thailand |
title_sort |
bioassessment of dry season water quality in the ping river around chiang mai city, thailand |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84928664264&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/54140 |
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