scholarly journals Streamflow, lake-flow patterns, rainfall, and quality of water and sediment in the vicinity of a hazardous-waste landfill near Pinewood, South Carolina, March 1987 through early January 1989

1991 ◽  
Keyword(s):  
South Carolina ◽  
Hazardous Waste ◽  
Flow Patterns ◽  
Waste Landfill ◽  
Water And Sediment ◽  
Quality Of Water ◽  
Hazardous Waste Landfill

scholarly journals Toxicity and genotoxicity of water and sediment from streams on dotted duckweed (Landoltia punctata)

2014 ◽  
Vol 74 (4) ◽  
pp. 769-778 ◽  
Author(s):  
R Factori ◽  
SM Leles ◽  
GC Novakowski ◽  
CLSC Rocha ◽  
SM Thomaz
Keyword(s):  
Rural Areas ◽  
Test Organism ◽  
Industrial Effluents ◽  
Genotoxic Effects ◽  
Relative Growth ◽  
Fresh Biomass ◽  
Water And Sediment ◽  
Quality Of Water ◽  
Floating Macrophyte

Most rivers are used as a source to supply entire cities; the quality of water is directly related to the quality of tributaries. Unfortunately men have neglected the importance of streams, which receive domestic and industrial effluents and transport nutrients and pesticides from rural areas. Given the complexity of the mixtures discharged into these water bodies, this study aimed to evaluate the quality of water and sediment of ten tributaries of Pirapó River, in Maringá, Paraná State, Brazil. To this end, the free-floating macrophyte Landoltia punctata (G. Meyer) Les & D.J.Crawford was used as test organism in microcosm, and the toxicity of water and sediment samples was evaluated by the relative growth rate, dry/fresh biomass ratio, and genotoxic effects (comet assay). Samples of water and sediment of each stream were arranged in microcosms with L. punctata. Seven days later, plants were collected for analysis. Nutrient levels were higher than the reference location, indicating eutrophication, but the results indicated a toxic effect for only three streams, and a genotoxic effect for all streams.

Research on Odours Emitted from Non-Hazardous Waste Landfill Using Dynamic Olfactometry

2017 ◽  
Author(s):  
Marija Meišutovic-Akhtarieva ◽  
Eglė Marčiulaitienė
Keyword(s):  
Hazardous Waste ◽  
Outdoor Air ◽  
Waste Landfill ◽  
Odour Source ◽  
Air Temperatures ◽  
Volatile Organic ◽  
Odour Concentration ◽  
Odour Emissions ◽  
Hazardous Waste Landfill ◽  
Dynamic Olfactometry

The article analyses the existing research on odour emissions from the passive odour source – municipal landfill for non-hazardous waste. The current research has been carried out in the Vilnius county, at the Kazokiškės landfill for regional municipal waste. Odour emissions were analysed using samples from waste of different age and at different outdoor air temperatures. The investigation determined the concentration of odourous volatile organic compounds (VOCs) formed in the landfill (mg/m3) and odour emissions (OUe/m2s). The odour concentration varied between 0.02 OUe/m2s (from 9 year old waste at 11oC) to 1.29 OUe/m2s (from 0–3 year old waste at minus 1 oC and minus 10 oC). It was determined that as temperature decreases (within the range of 11 to minus 10 oC), the concentration of odour emissions increases. The coefficient of correlation between the temperature of environment and the concentration of odours emitted from the landfill stood at minus 0.91.

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