Wastoxhas: A bioanalytical strategy for solid wastes assessment

The water quality of environmental waters from the viewpoint of aquatic ecotoxicity was investigated using a three-species ecotoxicity test (algae, daphnia and fish). Water samples were collected, concentrated with a solid-phase extraction technique and exposed to each test species. The growth inhibition, immobilization (swimming inhibition) and mortality ratios in acute toxicity tests for algae, daphnia and fish, respectively, were used as water quality indexes. For the river waters, 38% of the monitoring sites showed good water quality from the viewpoint of long-term ecotoxicity for all the three test species because no toxicity effects were observed at the concentration factors of 10, 50 and 50 for algae, daphnia and fish, respectively. For the agricultural drains, the ecotoxicity level responded sensitively especially when agricultural chemicals were applied. The GC/MS analysis also confirmed that the detection index (DI) in the agricultural drains was often raised significantly by the agricultural chemicals, but the period with high ecotoxicity did not continue for long.

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Ecological Assessment of Water Quality by Three-species Acute Toxicity Test and GC/MS Analysis - A Case Study of Agricultural Drains -

Kameya

Yamazaki

Kobayashi

et al. 2010

J. of Wat. & Envir. Tech.

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Wastewater and Landfill Leachate Testing: Acute Toxicity Biotest Results Evaluation

Cetkauskaite

Vosylienė

Kazlauskienė

et al. 2016

Journal of Environmental Engineering and Landscape Management

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This diverse review discusses biotest species and results scoring systems, which were applied to aquatic toxicity assessment of effluents/wastewater (WW) and landfill leachate (LL). European and American aquatic toxicity testing is reviewed. An example of Lithuanian research data on LL biotesting with aquatic organisms of different phylogenetic and ontogenetic levels is presented. Acute toxicity WW and LL is assessed on the basis of (L(E)C50, acute Toxic Units (tua), pt values, and, by applying different simple result scoring systems or toxicity thresholds. The differences in legislation and recommendations for biotest application in WW and LL aquatic toxicity testing are compared. It is concluded that WW and LL lowest acute toxicity data (tua value 0.3) should be considered equally as risk to aquatic environment, and technical management decisions should be made. The universal features of toxicity scoring systems, the problems of inventory of old small landfills and cost effective approach are discussed.

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Wastoxhas: A bioanalytical strategy for solid wastes assessment

Cited by 2 publications

References 54 publications

Ecological Assessment of Water Quality by Three-species Acute Toxicity Test and GC/MS Analysis - A Case Study of Agricultural Drains -

Ecological Assessment of Water Quality by Three-species Acute Toxicity Test and GC/MS Analysis - A Case Study of Agricultural Drains -

Wastewater and Landfill Leachate Testing: Acute Toxicity Biotest Results Evaluation

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