Análise físico-química e toxicidade do material particulado (MP10) no ar atmosférico em Catalão–GO
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Data
2018-04-23
Autores
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Universidade Federal de Goiás
Resumo
Many studies have shown a close relationship between air pollution by
particulate matter (PM10) and deterioration of human health. Because the
particulate matter can contain a variety of chemical and biological
components, in addition to its size directly influence the public health issue.
Therefore, knowledge of particulate matter levels, as well as their
composition, is important for preventive actions. In view of this problem, the
study of the particulate material in the city of Catalão - GO was carried out in
two different places (UFG-RC and Centro), and for the PM10 collection the AGV
PM10 was used. We studied 30 samples collected between August 2017 and
March 2018, in periods of 24 hours at a frequency of 6 days. The
concentrations of PM10 of both sites did not exceed the established of 150
μg.m3
of PM10 daily, according to Resolution 003/90 of CONAMA. However, for
the WHO recommendation setting 50 μg.m3
, there was extrapolation in the
dry period for samples of equipment located in the city center. A correlation
was observed between the meteorological conditions and the concentrations of
the particulate material, because, as there was an increase in the pressure,
temperature and wind speed, there was an increase in the PM and as the
humidity increased, the concentration decreased. We found 13 elements in the
filters through the use of EDXRF, which in turn, were associated with vehicular
emissions and resuspension of the study environment. The cytotoxic study of
the filters from both sites was performed, and it was possible to observe that
there are microorganisms associated with the PM, but in the tests performed
they were not harmful (toxic) to the microorganisms studied, since there was
no halo of inhibition and there was growth of microorganisms. Therefore, the
results showed that the concentration of PM10 for the city of Catalão - GO is in
accordance with Brazilian legislation, thus, it presents good air quality.
However, this particulate matter is small enough to penetrate the body and is
harmful to human health because it has metals and microorganisms that may
have a cumulative effect on the body.
Descrição
Palavras-chave
Poluição atmosférica, Qualidade do ar, Saúde pública, Material particulado, Toxicidade, Air pollution, Air quality, Particulate matter, Public health, Toxicity
Citação
SOUSA, N. L. S. Análise físico-química e toxicidade do material particulado (MP10) no ar atmosférico em Catalão–GO. 2018. 72 f. Dissertação (Mestrado em Química) - Universidade Federal de Goiás, Catalão, 2018.