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Abstract
Urbanization is an important source of air pollutants that can compromise human health. In developing countries, such as Brazil, most cities do not have air quality monitoring stations. Assessing air quality through plant species has gained recognized prominence, as they are sessile organisms and sensitive to environmental changes. Pollen abortion assay in Tradescantia pallida is a fast and low-cost bioassay that can be implemented in passive biomonitoring scenarios. The present study aimed to use the pollen abortion assay in T. pallida to assess air quality in the municipality of Rio Grande, RS, Brazil and the possible relationship with vehicular flow. A relation was found between the highest rate of pollen abortion and the sites where there was greater vehicular flow and ozone levels, while at the control point, the lowest rate of pollen abortion among the others was found, corroborating the hypothesis that air pollution together with high levels of ozone from vehicles, impair plant pollination.
Highlights
Air pollution represents one of the biggest environmental risks to health[1]
Pollen abortion assay in Tradescantia pallida is a fast and low-cost bioassay that can be implemented in passive biomonitoring scenarios
The present study aimed to use the pollen abortion assay in T. pallida to assess air quality in the municipality of Rio Grande, RS, Brazil and the possible relationship with vehicular flow
Summary
Air pollution represents one of the biggest environmental risks to health[1]. This pollution is characterized by a mixture of components such as particulate matter (PM), ozone (O3), nitrogen oxides (NOx), sulfur oxides (SOx), carbon monoxide (CO), volatile organics, polycyclic aromatic hydrocarbons (PAHs) and metals at disproportionate concentrations in air, and is constantly modified by sunlight and temperature[2]. There are legal limits to the presence of these components in the air. The pollutants and limits set out in this resolution are based on those established by the World Health Organization and include: Particulate Material (PM10 and PM2.5), NO2, CO, O3, SO2 and Pb in the PM[4]
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