Environmental Parameters and Relationships With Covid-19 Cases in Central South America

Abstract

This work aims to evaluate the possible relations between the confirmed daily cases of COVID-19 and the environmental parameters for the Cuiabá-Várzea Grande conurbation in the state of Mato Grosso, Brazil. The data sets used to cover the rainy-dry periods, from January to December 2020, were achieved from a database of government institutions, and processed through the Spearman correlation test. Our results showed that atmospheric pressure and fire radiative power has a significant positive correlation, suggesting that these parameters favor the transmission of COVID-19. On the other hand, the relative humidity of the air and the total column of water vapor showed a significant negative correlation with the number of confirmed daily cases of COVID-19, which indicates that the water vapor present in the atmosphere acts in the regulation of virus transmission. Thus, taking into account the results obtained, there is a need for collaborative policies and measures among the three spheres of executive power in Brazil, to act in the surveillance of fire cases, which can favor the transmission of COVID-19. In addition, prevention and protection measures aimed at reducing the spread of coronavirus continue to be indispensable.

The Role of Humidity in India’s Covid-19 Seasonality and Effectiveness of Policy Controls During the Second and Third Waves of 2021 and Early 2022

“…Recent COVID-19 studies in the United States show a negative correlation between humidity and cases in (30), the same as in Australia (44), and Bangladesh (29). Water (relative humidity, precipitation total, and column of water vapor) has also been shown to play a regulatory role in the transmission of COVID-19 in the southern hemisphere (27). Other studies have found winter seasonality in England and Wales (31), Germany (28) and temperate countries (45), and while the conclusion is more in favor of lower temperatures, the fact that the winters in this region have very low humidity should be noted.…”

“…To understand the role of both behavioral and environmental factors on the COVID-19, an extensive literature search was conducted (17,(22)(23)(24)(27)(28)(29)(30)(31). A.…”

Characterization of Aerosols Elementary Composition Emitted by Fires in the North of the Pantanal

“…Biomass burning is a significant anthropogenic source of aerosols, the area and the type of vegetation can influence in the composition and concentration of emitted aerosols, the heating of surface by burning process and the floatability of smoke plume makes the particulate matter affect directly the regional air quality and promote climate impacts globally [2]. Other studies in Mato Grosso and Brazil evidenced the effect of environmental parameters in the growth of viral transmission and mortality risk by respiratory diseases [3,4]. Currently, there is a scientific effort in the characterization of aerosols under ambient conditions [5].…”