Development and evaluation of a Planktonic Integrity Index (PII) for Jingpo Lake, China

A Planktonic Integrity Index (PII) for the China’s largest alpine barrier lake (Jingpo Lake) was developed to assess the water quality of Jingpo Lake by using phytoplankton and zooplankton metrics. Phytoplankton and zooplankton assemblages were sampled at 26 sites in Jingpo Lake. A total of 140 species of phytoplankton and 92 species of zooplankton were obtained in the investigations. We used a stepwise process to evaluate properties of candidate metrics and selected five for the PII: Algal cell abundance, Species richness of algae, Trophic diatom index, Zooplankton Shannon index, and Zooplankton Margalef index. Evaluation of the PII showed that it discriminated well between reference and impaired sites and the discriminatory biocriteria of the PII were suitable for the assessment of the water quality of Jingpo Lake. The further scoring results from the 26 sites showed that the water quality of Jingpo Lake was fair to good. The results of analyses between PII and major environmental factors indicated that water temperature (WT), transparency (SD), dissolved oxygen (DO), potassium permanganate (CODMn) and total nitrogen (TN) were the main factors influencing on the composition and distribution of phytoplankton and zooplankton. Additionally, more metrics belonging to habitat, hydrology, physics and chemistry should be considered for the PII, so as to establish comprehensive assessment system which can reflect the community structure of aquatic organisms, physical and chemical characteristics of water environment, human activities, etc.

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Development and evaluation of the Lake Multi-biotic Integrity Index for Dongting Lake, China

Journal of Limnology ◽

10.4081/jlimnol.2015.1186 ◽

2015 ◽

Cited By ~ 2

Author(s):

Xing Wang ◽

Binghui Zheng ◽

Lusan Liu ◽

Lijing Wang

Keyword(s):

Water Quality ◽

Water Environment ◽

Aquatic Organisms ◽

Dongting Lake ◽

Assessment System ◽

Biotic Integrity ◽

Diatom Index ◽

Integrity Index ◽

Biotic Integrity Index

<p>A Lake Multi-biotic Integrity Index (LMII) for the China’s second largest interior lake (Dongting Lake) was developed to assess the water quality status using algal and macroinvertebrate metrics. Algae and benthic macroinvertebrate assemblages were sampled at 10 sections across 3 subregions of Dongting Lake. We used a stepwise process to evaluate properties of candidate metrics and selected ten for the LMII: Pampean diatom index, diatom quotient, trophic diatom index, relative abundance diatoms, Margalef index of algae, percent sensitive diatoms, % facultative individuals, % Chironomidae individuals, % predators individuals, and total number of macroinvertebrate taxa. We then tested the accuracy and feasibility of the LMII by comparing the correlation with physical-chemical parameters. Evaluation of the LMII showed that it discriminated well between reference and impaired sections and was strongly related to the major chemical and physical stressors (r = 0.766, P<0.001). The re-scored results from the 10 sections showed that the water quality of western Dongting Lake was good, while that of southern Dongting Lake was relatively good and whereas that of eastern Dongting Lake was poor. The discriminatory biocriteria of the LMII are suitable for the assessment of the water quality of Dongting Lake. Additionally, more metrics belonging to habitat, hydrology, physics and chemistry should be considered into the LMII, so as to establish comprehensive assessment system which can reflect the community structure of aquatic organisms, physical and chemical characteristics of water environment, human activities, and so on.</p>

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Formulating biossay data of chemicals and environmental water

Water Science & Technology ◽

10.2166/wst.2000.0367 ◽

2000 ◽

Vol 42 (3-4) ◽

pp. 115-123 ◽

Cited By ~ 8

Author(s):

R. Shoji ◽

A. Sakoda ◽

Y. Sakai ◽

M. Suzuki

Keyword(s):

Water Quality ◽

Low Density Lipoprotein ◽

Water Environment ◽

Density Lipoprotein ◽

Environmental Water ◽

Toxicity Data ◽

Human Beings ◽

Environmental Waters ◽

Bodies Of Water

The quality of environmental waters such as rivers is often deteriorated by various kinds of trace and unidentified chemicals despite the recent development of sewage systems and wastewater treatment technologies. In addition to contamination by particular toxicants, complex toxicity due to multi-component chemicals could be much more serious. The environmental situation in bodies of water in Japan led us to apply bioassays for monitoring the water quality of environmental waters in order to express the direct and potential toxicity to human beings and ecosystems rather than determinating concentrations of particular chemicals. However, problems arose from the fact that bioassays for pharmaceutical purposes generally required complicated, time-consuming, expert procedures. Also, a methodology for feedback of the resultant toxicity data to water environment management has not been established yet. To this end, we developed a novel bioassay based on the low-density lipoprotein (LDL) uptake activity of human hepatoblastoma cells. The assay enabled us to directly detect the toxicity of environmental waters within 4 hours of exposure. This is a significantly quick and easy procedure as compared to that of conventional bioassays. The toxicity data for 255 selected chemicals and environmental waters obtained by this method were organized by a mathematical equation in order to make those data much more effectively and practically useful to the management of environmental waters. Our methodology represents a promising example of applying bioassays to monitor environmental water quality and generating potential solutions to the toxicity problems encountered.

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Investigation of Water Quality Parameters from Ramna, Crescent and Hatirjheel Lakes in Dhaka City

Journal of Environmental Science and Natural Resources ◽

10.3329/jesnr.v8i1.24620 ◽

2015 ◽

Vol 8 (1) ◽

pp. 1-5 ◽

Cited By ~ 2

Author(s):

MS Islam ◽

M Rehnuma ◽

SS Tithi ◽

MH Kabir ◽

L Sarkar

Keyword(s):

Water Quality ◽

Lake Water ◽

Public Awareness ◽

Aquatic Organisms ◽

Quality Parameters ◽

Water Runoff ◽

Dhaka City ◽

Sound Environment ◽

Surrounding Areas

The study was conducted to know the status of water quality of the Ramna, Crescent and Hatirjheel lakes in the Dhaka city. Water samples were collected from three different points of each lake and analyzed for various physicochemical parameters including temperature, pH, EC, TDS, DO, BOD, hardness, alkalinity, acidity during the period from November 2013 to April 2014. The mean temperature 22.54, 24.59 and 24.24°C; EC 15400, 282.00 and 618.27 ?Scm-1; TDS 85.38, 155.60 and 339.90 ppm; pH 7.73, 7.85 and 7.67; DO 3.51, 3.92 and 3.65 ppm; BOD 0.93, 0.73 and 3.15 ppm; hardness 95.00, 108.56 and 105.11 ppm; alkalinity 48.9, 120.7 and 249.1 ppm, and acidity 2.18, 2.67 and 2.05 ppm were investigated from Ramna, Crescent and Hatirjheel lakes, respectively. Lower concentration of DO was observed in all three lakes that severely harmed the aquatic organisms and degrade their habitat. The comparative study demonstrated that the concentration of BOD, EC, TDS, alkalinity and acidity of Hatirjheel Lake was higher than Ramna and Crescent lakes which indicated pollution of the lake water. The rain and storm water runoff, lack of awareness of people were responsible for the pollution of Ramna, Crescent and Hatirjheel lakes water. Connection of the sewerage line with the rain water collection channels and mixing of solid waste with lake water are the main reasons for pollution of Hatirjheel lake. Poor water quality of these lakes affects the ecosystem and aesthetic beauty negatively. To maintain the sound environment and healthy ecosystem of the lakes and the surrounding areas need proper management and monitoring and implementation of existing laws and regulations. Moreover public awareness is necessary otherwise it is hardly possible to maintain sound water quality of these three lakes.J. Environ. Sci. & Natural Resources, 8(1): 1-5 2015

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Assessment of the Impact of Sewage Storage Ponds on the Water Environment in Surrounding Area

Proceedings ◽

10.3390/proceedings2020051020 ◽

2020 ◽

Vol 51 (1) ◽

pp. 20

Author(s):

Kairat Ospanov ◽

Timur Rakhimov ◽

Menlibai Myrzakhmetov ◽

Dariusz Andraka

Keyword(s):

Water Quality ◽

Water Environment ◽

Quality Parameters ◽

Treated Wastewater ◽

Groundwater Aquifer ◽

Sewage Ponds ◽

Basic Quality ◽

The Impact

The paper presents the results of research on the environmental impact of sewage ponds serving the city of Kostanay (Kazakhstan). The scope of the research included the determination of basic quality parameters of raw and treated wastewater, an analysis of the chemical composition of groundwater in the vicinity of sewage ponds, and the analysis of the water quality of the Tobol River. The obtained results indicate that sewage from storage ponds, infiltrating into the ground, caused groundwater pollution in the area of about 100 km2 around the reservoirs. Due to the fact that the groundwater aquifer in the vicinity of sewage ponds feeds the Tobol River, it also affects water quality in the river, which does not meet the requirements for most of the analyzed parameters.

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Effects of Opened and Closed Spillway Operations of a Large Tropical Hydroelectric Dam on the Water Quality of the Downstream River

Journal of Chemistry ◽

10.1155/2019/6567107 ◽

2019 ◽

Vol 2019 ◽

pp. 1-11 ◽

Cited By ~ 4

Author(s):

Fiona-Annilow Wera ◽

Teck-Yee Ling ◽

Lee Nyanti ◽

Siong-Fong Sim ◽

Jongkar Grinang

Keyword(s):

Water Quality ◽

River Basin ◽

Aquatic Organisms ◽

Quality Parameters ◽

Regulated River ◽

Land Uses ◽

Hydroelectric Dam ◽

Water Ph ◽

The Impact

Water quality downstream of a hydroelectric dam is potentially affected by dam operations and other land uses in the river basin. Previous short-distance studies below the large Bakun Dam indicated poorer water quality during closed spillway. However, the extent of the impact is still unknown. Such knowledge is essential for mitigating the impact of the dam. Thus, the objectives of this study were to determine the water quality up to a distance of 210 km under two spillway operations, namely, closed and opened spillways, and also to determine the changes in water quality from the predam condition. Physicochemical parameters were measured at 15 stations along the Rajang River. Results of this preliminary study indicated that there were significant differences in eight out of nine water quality parameters between opened and closed spillway operations with opened spillway showing better water quality. During closed spillway, as we approached the dam, there was an increasing acidity and a decreasing oxygen content. Furthermore, as the water flows downstream, the unhealthy DO level (<5 mg/L) extended up to 165 km and the linear model showed an increasing DO rate of 0.09 mg/L per km. With opened spillway, DO decreased exponentially from 9.74 mg/L towards the downstream direction to 7.67 mg/L. The increasing turbidity and TSS in the downstream direction indicate contributions from erosion due to other land uses. The river is polluted with organics as indicated by COD of Class IV or V with sources from the dam and the activities in the river basin. Compared to the predam condition, the regulated river is less turbid but warmer and higher in ammonia. Closed spillway led to lower DO and acidic water. However, opened spillway water pH and DO were similar to those in the predam condition. Thus, it is recommended that DO be consistently high enough for the health of sensitive aquatic organisms downstream.

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Analysis on the evolution trend of water resources and water environment in Xiangjiang River basin

MATEC Web of Conferences ◽

10.1051/matecconf/201824602030 ◽

2018 ◽

Vol 246 ◽

pp. 02030

Author(s):

Xingyi Xu ◽

Chuqiu Xiao ◽

Chunyan Hu ◽

Guiyuan Li ◽

Xiang Gao ◽

...

Keyword(s):

Water Quality ◽

Water Resources ◽

River Basin ◽

Water Environment ◽

Sudden Change ◽

Xiangjiang River ◽

Flood Season ◽

Xiangjiang River Basin ◽

Evolution Trend

According to the daily flow data collected by three representative hydrological stations in the Xiangjiang River basin which are the Guiyang station in the upstream section, the Hengshan station in the midstream section, and the Xiangtan station in the downstream section, and the water environment data collected from the Hunan Water Resources Bulletin, Mann-Kendal method was used to analyze the changes of the annual average flow of the Xiangjiang River basin in the past 20 years as well as the variation of water environment quality in the whole year, flood season and non-flood season. Based on these analysis, the evolution trend of water resources and water environment in the Xiangjiang River basin is further forecasted. The results show that the annual runoff of the upper reaches of the Xiangjiang River basin tends to be stable, and the runoff of the middle and lower reaches is decreasing. The water quality of the Xiangjiang River basin got deteriorated from 1996 to 2010. A sudden change occurred around 2012, and the water quality of the basin gradually improved.

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Water-Quality Assessment on Butterfly Lake in Guangdong Ocean University, China

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.675-677.367 ◽

2014 ◽

Vol 675-677 ◽

pp. 367-370

Author(s):

Ya Yun Liu ◽

Zi Kun Chen ◽

Ke Jun Ren ◽

Yan Jia ◽

Yue Xian Guo ◽

...

Keyword(s):

Water Quality ◽

Water Environment ◽

Pollution Index ◽

Average Concentration ◽

Light Pollution ◽

Trophic State Index ◽

Monitoring Time ◽

National Quality ◽

Pollution Area

Butterfly Lake provides an important function of ecological environment and campus service for Guangdong Ocean University. Based on the data which were collected in March,May, September and December in 2013, the water environment quality of Butterfly Lake was assessed. The results show that the key pollutant of Butterfly Lake is total phosphorus (TP). The average concentration of TP is worse than the national quality standards for Class V. The water quality appears an obvious difference in different monitoring time. In September the water quality is the best. The average of single parameter pollution index (Sj) is 0.75 and the water quality belongs to good environment area. The average of integrated parameter pollution index (WQI) is 1.76 and the water quality belongs to light pollution area. In December the water quality is the worst. Sj and WQI is 1.14 and 3.14. The water quality belongs to light pollution area and moderate pollution area, respectively. The comprehensive trophic state index is 70.38 in December. The eutrophication level is hyper eutropher. The other monitoring time belongs to middle eutropher. In order to improve the water quality of Butterfly Lake,the valid measure is to strengthen the management of wastewater discharge from the laboratory and the dormitory.

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Composition of planktonic organisms and its associated physico-chemical parameters in two ponds at African regional aquaculture centre (ARAC) Aluu, Port Harcourt

Global Journal of Pure and Applied Sciences ◽

10.4314/gjpas.v21i1.1 ◽

1970 ◽

Vol 21 (1) ◽

pp. 1-5

Author(s):

GN Woke ◽

IP Aleleye-Wokoma

Keyword(s):

Water Quality ◽

Heavy Rainfall ◽

Aquatic Organisms ◽

Chemical Parameters ◽

Physico Chemical ◽

Port Harcourt ◽

Dominant Classes ◽

Abundance And Distribution ◽

Plankton Communities

Composition of plankton communities in two ponds at African Regional Agriculture Centre (ARAC) Aluu, Port Harcourt was undertaken between May and June 2004, to assess the composition, relative abundance and distribution of plankton. The diversity of plankton was poor. Twenty-eight taxa representing four (4) families were recorded for phytoplankton while seventeen taxa representing four families were identified for zooplankton. Chlorophyta and Cladocera were the most dominant classes in phytoplankton and zooplankton in terms of abundance, constitute 13.0% and 17.1% respectively. The water quality of the ponds is evident by high temperature (28.80C), depth (57.5cm), transparency (42), dissolved oxygen (4.9mg/l) and low BOD of (1.4mg/l). The lower density of organisms could be partly attributed due to heavy rainfall which destabilize the surface water and substrate. Hence, extensive studies of the ponds where aquatic organisms are kept should be carried out to maintain proper utilization of ponds.KEYWORDS: Plankton, composition, communities richness, abundance.

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Study of Heavy Metal Cadmium Content (Cd) In Various Sizes of Blood Shells (Anadara granosa) In Bancaran Coastal Bangkalan, Madura

Journal of Marine and Coastal Science ◽

10.20473/jmcs.v8i3.21160 ◽

2020 ◽

Vol 8 (3) ◽

pp. 107

Author(s):

Esti Sudaria Ulfah ◽

Boedi Setya Rahardja ◽

Kustiawan Tri Pursetyo

Keyword(s):

Heavy Metals ◽

Water Quality ◽

Sea Water ◽

Aquatic Organisms ◽

Cadmium Content ◽

Ocean Pollution ◽

Water Ecosystem ◽

Anadara Granosa ◽

Regression Correlation

Ocean pollution occurs because of the concentration of population, tourism and industrialization in the coastal areas, causing contamination of the water ecosystem by heavy metals, one of them is cadmium (Cd). Existence of heavy metals in the water can be accumulated in aquatic organisms, especially blood shells. Its dangerous for human that consumed them. The purpose of this study is to know the contents of cadmium (Cd) in blood shells, water, sediments and to determine the relation of blood shell’s size with the contents of cadmium (Cd) in the Bancaran Coastal, Bangkalan, Madura. Research methods that used was observations method. The main parameters that observed are the contents of cadmium (Cd) in sea water, sediment and blood shells in the Bancaran Coastal. Supporting parameters that observed are water quality include temperature, p H, salinity, DO and brightness. Data analysis is used to find relations of the data that obtained (regression-correlation). The results showed that the contents of cadmium (Cd) of large blood shells are higher than the small and medium blood shells and there is relat ion between the size of the blood shells with the contents of cadmium (Cd). The water quality of Bancaran Coastal are the temperature 28oC-29oC, pH 7-8, salinity 30 ppt, the brightness 30 cm and DO 5 mg/l.

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Effects of Land Cover Changes on Sediment and Nutrient Balance in the Catchment with Cascade-Dammed Waters

Remote Sensing ◽

10.3390/rs12203414 ◽

2020 ◽

Vol 12 (20) ◽

pp. 3414

Author(s):

Dawid Szatten ◽

Michał Habel

Keyword(s):

Water Quality ◽

Land Cover ◽

Catchment Area ◽

Nutrient Balance ◽

Water Environment ◽

Hydrological Regime ◽

Trapping Efficiency ◽

Land Cover Changes ◽

Matter Transport

It is commonly believed that changes in the use of the catchment area have a direct impact on the quality of the water environment. Rivers with dams and reservoirs are characterized by a disturbed outflow of sediments and nutrients from the catchment area. The research was based on indicating the variation in time and space of loads of selected parameters of the water quality of the Brda River (Northern Poland) against the land cover changes based on the CORINE Land Cover (CLC) data for the 1990–2018 period. In the lower part of the Brda catchment area, there are three hydropower dams with reservoirs in the form of a cascade, whose work clearly affects the hydrological regime of the river. The analysis of the dependence of the dynamics of water quality changes on the usage of CLC was based on indicators such as sediments (suspended sediment load) and nutrients (total phosphorus load and total nitrogen load). The use of hydrological data on the Brda discharge above and below the reservoirs made it possible to calculate sediment and nutrient trapping efficiency. Linking the CLC data with the indices responsible for the mechanical denudation of the catchment area made it possible to show the strength of changes taking place in the catchment area. The results of the research do not indicate any direct correlation between land cover changes and the dynamics of the denudation process and matter transport in the Brda catchment area. As our research shows, the strong influence on the hydrological regime of the catchment points out the necessity to search for still other research methods supporting the decision-making cycle in the field of water management in the face of climate change.

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