Banca de QUALIFICAÇÃO: SELMA ARRUDA CORDEIRO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : SELMA ARRUDA CORDEIRO
DATA : 24/03/2021
HORA: 09:00
LOCAL: https://meet.google.com/eai-bcbw-nuo
TÍTULO:

TECHNICAL NOTE: CLASSIFICATION OF DYES AS AQUATIC ENVIRONMENT CONTAMINANTS IN THE STATE OF MATO GROSSO

PALAVRAS-CHAVES:

Industrial effluents, water contamination, environmental law

PÁGINAS: 57
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Química
SUBÁREA: Química Analítica
ESPECIALIDADE: Análise de Traços e Química Ambiental
RESUMO:

The availability of fresh water in the world is compromised due to several factors, among them, the concern is greater due to irregular dumping or, without treatment of industrial effluents directly in the water bodies, generating a huge damage to the environment. Effluents containing dyes are the most worrying, as they contain a high load of organic chemical compounds, do not degrade easily and are highly toxic to the environment. Thus, the objective of this work was to carry out a bibliographic survey of information related to the toxicities of dyes in the aquatic environment, identifying the toxicity levels of the dyes listed, the result of toxicity found should be forwarded to the State Secretariat for the Environment (SEMA) in order to subsidize the lowering of a specific technical standard classifying the dyes in the category of environmental contaminants to meet the requirement of State Law No. 10,748 of August 2018 of the State of Mato Grosso. The methodology applied was exploratory and explanatory research, which was guided by the bibliographic survey of the information in the documents: technical standards, legislation, scientific articles, theses, published dissertation that deals with the area in question and that used tests with test organisms. After studying and analyzing vast material, it was possible to observe that among the identified dyes, azo dyes have higher levels of toxicities than other groups, especially the acute level, in addition to presenting carcinogenic and mutagenic activity, cytoxicity, clastogenic and cytostaticity / genotoxicity potential. So we can conclude that, in the case of dyes, more water-soluble compounds tend to induce less toxicity, whereas less soluble compounds tend to be more absorbed by organisms and, consequently, are more likely to induce toxicity. It should be noted that for the detection of dyes in the environment, it is necessary for the environmental agencies to establish a monitoring program that uses analytical technological tools for a more accurate analysis of the occurrence of dyes in water resources within the state of Mato Grosso, so that this, can quantify the levels of concentrations of the order of microgram per liter (µg / l) or lower, thus enabling the process of environmental risk assessment.

MEMBROS DA BANCA:
Presidente - 138498001 - ADLEY BERGSON GONCALVES DE ABREU
Interno - 83168001 - FATIMA APARECIDA DA SILVA IOCCA
Interno - 824.193.618-49 - LUIZ ALBERTO ESTEVES SCALOPPE - UFPA
Externo à Instituição - ARYADNE MARCIA AQUINO - SEDUC - MT