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Comparison between four and seven-day Ceriodaphnia dubia survival and reproduction test protocols using oil refinery effluent samples BABT
Oliveira-Filho,Eduardo Cyrino; Da-Matta,Anndressa Camillo; Cabral,Lucianna Lopes; Veiga,Letícia Falcão; Paumgartten,Francisco José Roma.
The aim of this study was to compare the 7-day Ceriodaphnia dubia survival and reproduction test with a 4 day test to evaluate the toxicity of oil refinery effluents. Both shown identical NOECs with three of 6 tested samples. With one of the tested samples, the 4-day NOEC was one tested-concentration lower, and with the remaining two samples, it was one tested-concentration higher than those obtained using the 7-day protocol. Then results suggested that 4 and 7-day protocols were comparable to detect toxic effects.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquatic toxicology; Water pollution; Ecotoxicology; Oil refinery effluents; Reproduction; Aquatic chronic tests.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100017
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To be or not to be a carcinogen; delving into the glyphosate classification controversy BJPS
Paumgartten,Francisco José Roma.
The International Agency for Research on Cancer (IARC) placed the most widely used herbicide glyphosate (GLY) into the category 2A (probably carcinogenic to humans), a classification questioned by experts from academia and industry. This article critically appraised the epidemiological and experimental data that led the IARC working group (WG) to consider GLY a probable human carcinogen and the ensuing controversy. An association of GLY with non-Hodgkin lymphoma was suggested by some observational studies. A non-causal explanation for this weak association, however, cannot be excluded. Contrary to WG’s view, long-term rodent assays yielded no convincing evidence that GLY is carcinogenic. The mechanistic evidence remains elusive as well. Bacterial reverse...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pesticides/ toxicity; Glyphosate/ adverse effects; Carcinogens; Cancer risk; Hazard/adverse effects; Genotoxicity/prevention and control.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100510
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