Now showing items 1-10 of 7508
Determinação da toxicidade do selênio por meio de análises hematológicas em Oreochromis niloticus
Selenium (Se) is described as an essential micronutrient and participates in different biological functions, as the antioxidant defense systems maintenance and regulation. However, when in high concentrations, Se may cause ...
Identification of alpha-beta unsaturated aldehydes as sources of toxicity to activated sludge biomass in polyester manufacturing wastewater
(Iwa PublishingLondonInglaterra, 2010)
TOXICITY OF THURINGIENSIN ON IMMATURE AND ADULT STAGES OF Tetranychus urticae KOCH AND Panonychus ulmi (KOCH) (ACARINA: TETRANYCHIDAE)
(Instituto de Investigaciones Agropecuarias, INIA, 2001)
Toxicity of organophosphorus pesticides to the stingless bees Scaptotrigona bipunctata and Tetragonisca fiebrigi
This study estimated the toxicity of the insecticides chlorpyrifos and phosmet to the stingless bees Scaptotrigona bipunctata and Tetragonisca fiebrigi. The results showed significant differences in susceptibility between ...
Determination of leachate toxicity through acute toxicity using Daphnia pulex and anaerobic toxicity assays
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ingeniería, 2017-01-01)
The municipal solid waste (MSW) of large cities, in particular in developing countries, is mainly disposed of in landfills (LFs), whose inadequate management generates the emission of greenhouse gases and the production ...
Acute and subacute (28 days) oral toxicity assessment of the oil extracted from Acrocomia aculeata pulp in rats
(Elsevier B.V., 2014-12-01)
Acrocomia aculeata, popularly known as "bocaitiva", is a species used for nutritional purposes and for the treatment of various diseases, as it has, among other things, high levels of antioxidant compounds. This ...
Toxicity assessment of arsenic and cobalt in the presence of aquatic humic substances of different molecular sizes
The release of contaminants in aquatic ecosystems can be influenced by humic acids. In this study, toxicity tests using environmentally relevant concentrations of arsenic and cobalt were conducted both in the presence and ...
Sediment toxicity identification evaluation (TIE phases I and II) based on microscale bioassays for diagnosing causes of toxicity in coastal areas affected by domestic sewage
Domestic sewage is a major problem in highly urbanized coastal areas worldwide. In the present study, toxicity identification evaluation (TIE) phases I and II were applied to sediment interstitial water from 2 locations ...
Toxicity of three emerging contaminants to non-target marine organisms
Coastal areas are continually impacted by anthropic activities because they shelter large urban conglomerates. Urban effluents directly or indirectly end up reaching the marine environment, releasing a large number of ...