TIANA CARLA LOPES MOREIRA
Projetos de Pesquisa
Unidades Organizacionais
LIM/05 - Laboratório de Poluição Atmosférica Experimental, Hospital das Clínicas, Faculdade de Medicina
2 resultados
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- Spatial-temporal variability of metal pollution across an industrial district, evidencing the environmental inequality in Sao Paulo(2020) LOCOSSELLI, Giuliano Maselli; MOREIRA, Tiana Carla Lopes; CHACON-MADRIZ, Katherine; ARRUDA, Marco Aurelio Zezzi; CAMARGO, Evelyn Pereira de; KAMIGAUTI, Leonardo Yoshiaki; TRINDADE, Ricardo Ivan Ferreira da; ANDRADE, Maria de Fatima; ANDRE, Carmen Diva Saldiva de; ANDRE, Paulo Afonso de; SINGER, Julio M.; SAIKI, Mitiko; ZACCARELLI-MARINO, Maria Angela; SALDIVA, Paulo Hilario Nascimento; BUCKERIDGE, Marcos SilveiraAlthough air pollution decreased in some cities that shifted from an industrial to a service-based economy, and vehicular emission regulation became more restrictive, it is still a major risk factor for mortality worldwide. In central Sao Paulo, Brazil, air quality monitoring stations and tree-ring analyses revealed a decreasing trend in the concentrations of particulate matter and metals. Such trends, however, may not be observed in industrial districts located in the urban periphery, where the usual mobile sources may be combined with local stationary sources. To evaluate environmental pollution in an industrial district in southeastern Sao Paulo, we assessed its spatial variability, by measuring magnetic properties and concentrations of Al, Ba, Ca, Cl, Cu, Fe, K, Mg, Mn, P, S, Sr, Zn in the bark of 62 trees, and its temporal trends, by measuring Cd, Cu, Ni, Pb, V, Zn in tree rings of three trees. Source apportionment analysis based on tree barks revealed two clusters with high concentrations of metals, one related to vehicular and industrial emissions (Al, Ba, Cu, Fe, Zn) in the east side of the industrial cluster, and the other related to soil resuspension (Cu, Zn, Mn) in its west side. These patterns are also supported by the magnetic properties of bark associated with iron oxides and titanium-iron alloy concentrations. Dendrochemical analyses revealed that only the concentrations of Pb consistently decreased over the last four decades. The concentrations of Cd, Cu, Ni, V, and Zn did not significantly decrease over time, in contrast with their negative trends previously reported in central Sao Paulo. This combined biomonitoring approach revealed spatial clusters of metal concentration in the vicinity of this industrial cluster and showed that the local population has not benefited from the decreasing polluting metal concentrations in the last decades.
- Green Spaces, Land Cover, Street Trees and Hypertension in the Megacity of Sao Paulo(2020) MOREIRA, Tiana C. L.; POLIZEL, Jefferson L.; SANTOS, Itamar de Souza; FILHO, Demostenes F. Silva; BENSENOR, Isabela; LOTUFO, Paulo A.; MAUAD, ThaisProximity to green spaces has been shown to be beneficial to several cardiovascular outcomes in urban spaces. Few studies, however, have analyzed the relationship between these outcomes and green space or land cover uses in low-medium income megacities, where the consequences of rapid and inordinate urbanization impose several health hazards. This study used a subgroup of the dataset from The Brazilian Longitudinal Study of Adult Health ELSA-BRASIL (n = 3418) to identify the correlation between the medical diagnosis of hypertension and green spaces in the megacity of Sao Paulo. Land cover classification was performed based on the random forest algorithm using geometrically corrected aerial photography (orthophoto). Three different indicators of exposure to green spaces were used: number of street trees, land cover and number of parks within 1 km. We used logistic regression models to obtain the association of the metrics exposure and health outcomes. The number of street trees in the regional governments (OR = 0.937 and number of parks within 1 km (OR = 0.876) were inversely associated with a diagnosis of hypertension. Sixty-three percent of the population had no parks within 1 km of their residence. Our data indicate the need to encourage large-scale street tree planting and increase the number of qualified parks in megacities.