Evaluation of indoor air quality in a laboratory setting during hot mix asphalt production
DOI:
https://doi.org/10.58922/transportes.v33.e3125Keywords:
Laboratory, Asphalt mixtures, Air qualityAbstract
This study aimed to characterize the emission of atmospheric pollutants during laboratory-scale asphalt mixture production, in order to generate knowledge about air quality in such settings and contribute with technical information within the Brazilian context. Experimentally, the following environmental parameters were monitored: air temperature, relative humidity, carbon dioxide (CO2), total suspended particles (TSP), particulate matter of 10 μm (PM10) and 2.5 μm (PM2.5), as well as metals (Ca, Mg, Zn, Ni, V, and Pb) and benzo(a)pyrene. The average concentrations observed during asphalt mixing were: 1153.2 μg/m3 of TSP; 244.0 μg/m3 of PM10; 161.5 μg/m3 of PM2.5; 5.8 ng/m3 of benzo(a)pyrene; 674 ppm of CO2; 105.8 μg/m3 of calcium (Ca); 63.6 μg/m3 of magnesium (Mg); and 3.81 μg/m3 of zinc (Zn). Lead (Pb), nickel (Ni), and vanadium (V) were not detected in the samples. Overall, the average concentrations of TSP, PM10, PM2.5, benzo(a)pyrene, Ca, Mg, and Zn exceeded the limits established by national and international standards for indoor environments.
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Copyright (c) 2025 Michael Lima Silva, Mauro Felipe Patrício da Costa, Cícero Janderson Tavares Neves, Rinaldo dos Santos Araújo, Lara Sucupira Furtado, Iuri Sidney Bessa, Lucas Feitosa de Albuquerque Lima Babadopulos

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