This study aims to conduct a spatiotemporal analysis of the long-range transportation of volcanic ashes that originates from the eruption of the Sangay volcano and reached Guayaquil during the months of June 2020; September 2020; and April 2021. The particulate matter data (PM 2.5 ) was obtained using a low-cost air quality sensor. During the wet season of 2020 (Jan–May), PM 2.5 average concentrations were 6 ± 2 μg m −3 while...

The focus of this study is the assessment of total suspended particles (TSP) and particulate matter (PM) with various aerodynamic diameters in ambient air in Guayaquil, a city in Ecuador that features a tropical climate. The urban annual mean concentrations of TSP (Total Suspended Particles), and particle matter (PM) with various aerodynamic diameters such as: PM 10 , PM 2.5 and PM 1 are 31 ± 14 µg m −3 , 21 ± 9 µg m −3 , 7 ±...