Development of a water quality index model for lakes and reservoirs

Lee, Yunkyoung; Kim, Jai-Ku; Jung, Susanne; Eum, Jaesung; Kim, Chul-Goo; Kim, Bomchul

doi:10.1007/s10333-014-0450-2

Cited by 16 publications

(11 citation statements)

References 14 publications

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“…더욱이 수위변동 폭이 작은 환경에서는 수위 하강에 의한 적당한 교란이 수생식 물의 종조성과 풍부도에 영향을 미쳐서 다양한 식물종과 생활형이 나타날 수 있다 (Wagner and Falter, 2002). 341 수용 13개 (금풍, 대정, 동부, 백곡, 번개, 불갑, 신송, 옥구, 원남, 지정, 청천, 초평, 흥덕 저수지), 생활·공업용수용 9개 (구천, 대곡, 동복, 보령, 부안, 사연, 연초, 영천, 운문 저수 지), 홍수조절용 8개 (대청, 밀양, 소양, 임하, 진양, log (Chl-a)) + 0.25 (114.6 + 43.3 log (T-P)) (Lee et al, 2014). …”

Section: 서 론unclassified

Difference in Shoreline Flora According to the Usage of Reservoirs in Korea

Cho¹,

Cho²

2015

Journal of Wetlands Research

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Differences in characteristics of flora and environmental factors of geomorphology, hydrology, water quality and soil were investigated in the shoreline of total 35 reservoirs according to their usages of waterpower generation, agricultural water supply, residential and industrial water supply and flood control in Korea. The number of plant species, floral structure and characteristics of species traits in the shoreline of reservoirs were different according to their usage. From the results of stepwise regression analysis, the total number of vascular plant species was increased at the environment of the higher flood frequency at the median water level and the longer exposure duration of the shoreline. The results of principal coordinates analysis and cluster analysis showed that the shoreline flora was classified as the 3 types of 1) flood control and residential and industrial water supply, 2) agricultural water supply and 3) waterpower generation reservoirs. The water level fluctuation, flood frequency at the median water level, lake water quality index and exposure duration of the shoreline were selected as important environmental factors affected on the characteristics of shoreline flora. The species richness of total flora and hydrophytes, especially submerged macrophytes, were much higher in the reservoirs for the purpose of the waterpower generation in which mesotrophic water quality and stable water levels were maintained. Annual or biennial ruderals were established on the ephemeral drawdown zone of flood control, residential and industrial water supply reservoirs which have oligotrophic or mesotrophic water quality and wide range of water level fluctuation. The floating hydrophytes were differentially dominated in the littoral zones of the agricultural water supply reservoirs with a mesotrophic or eutrophic water quality and a medium water level fluctuation. In conclusion environmental factors related to water level fluctuation and water quality were different and then the floral characteristics of shoreline were distinguishable according to usage of Korean reservoirs.

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Section: 서 론unclassified

Difference in Shoreline Flora According to the Usage of Reservoirs in Korea

Cho¹,

Cho²

2015

Journal of Wetlands Research

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“…Typically, lake water quality and the trophic state thereof are evaluated using a variety of parameters including pH, total organic carbon, chlorophyll-a, total phosphorus, and turbidity 7 , but not toxin content or toxicity. In terms of toxin content, microcystin concentrations of 0.057 µg L -1 up to 2612 µg L -1 have been detected in these different river systems 5,8 , however, to date toxicity testing seems to have been neglected.…”

Section: Introductionmentioning

confidence: 99%

“…The dam was also constructed as a flood control mechanism and for hydroelectric power generation. Due to ongoing expansion and housing projects, pollution of the Wangsong reservoir has steadily increased, accompanied by cyanobacterial bloom formation 7 . Hence, great attention has been paid to water quantity and quality problems of the reservoir.…”

Section: Introductionmentioning

confidence: 99%

Toxicity and Toxin Composition of Microcystis aeruginosa from Wangsong Reservoir

Esterhuizen-Londt

Baik

Kwon

et al. 2018

Toxicol. Environ. Health Sci.

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The increasing world population, resulting in increased anthropogenic water pollution, is negatively impacting the limited available water resources. In South Korea, this similarly affects the water quality of reservoirs. As water is a basic necessity for life, water quality monitoring is essential but typically does not include toxicity testing. However, as toxic bloom event frequencies are increasing, this previously neglected aspect becomes pertinent. Therefore, in the present study, the toxin composition and toxicity of a Microcystis aeruginosa strain isolated from a persistent bloom in lake Wangsong, South Korea, was investigated. Methods A combination of bioassays and chemical analysis was used for this purpose. The bioassay species included terrestrial and aquatic plants, an alga, a rotifer, a tubificid annelid, and crustaceans, representing various trophic levels. Results The strain was found to produce microcystin-LR,-RR, and YR, as well as β-N-methylamino-L-alanine. The bioassays indicated that the primary producers were less sensitive to the crude extract. Conclusion The presence of absence of a visible cyanobacterial bloom is also not an indication of the toxins that may be present in the afflicted waters, and thus does not predict exposure risk. Similarly, the presence and absence of toxins and mixtures thereof does not indicate the ecological effect. Therefore, it would be advantages to include toxicity testing into routine water testing regimes to better understand the impact of harmful algal blooms.

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“…The water quality parameters used for WQI 5 development involve five parameters including DO, BOD, ammonia nitrogen (NH 3 -N), suspended solid (SS), and electric conductivity (EC). The overall index is divided into six pollution levels (Dzwairo et al, 2014;Lee et al, 2014;Yan and Zou, 2014). Table 1 shows the WQI 5 criteria for the six levels (excellent, good, slightly polluted, moderately polluted, polluted, and heavily polluted) (Dzwairo et al, 2014;Lee et al, 2014;Yan and Zou, 2014).…”

Section: Introductionmentioning

confidence: 99%

Developing an Integrated Modeling Tool for River Water Quality Index Assessment

Lai

Chien

Yang

et al. 2017

Water Environment Research

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The goal of this study was to establish a modeling tool for river water quality with a direct linkage to the water quality index (WQI5) calculation and the river water quality model, the Water Quality Analysis Simulation Program (WASP), for pollutant transport modeling. The integrated WASP and WQI5 tool was field-tested to assess pollutant loadings and their impacts on river environment. Suspended solid (SS) and electric conductivity (EC) correlation equations and the WQI5 calculation tool were included in the water quality model and direct WQI5 calculation. The SS concentration, which was influenced by river flows, had crucial effects on river water quality and WQI5 values. EC value was controlled by dissolution of soil minerals, which was affected by the watershed drainage area and surface runoff. The integrated system could establish a direct correlation for river water quality, river flow, and WQI5.

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Development of a water quality index model for lakes and reservoirs

Cited by 16 publications

References 14 publications

Difference in Shoreline Flora According to the Usage of Reservoirs in Korea

Difference in Shoreline Flora According to the Usage of Reservoirs in Korea

Toxicity and Toxin Composition of Microcystis aeruginosa from Wangsong Reservoir

Developing an Integrated Modeling Tool for River Water Quality Index Assessment

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