This study characterized and quantified the bacterial and fungal bioaerosols in nine wards of the Razavi Hospital (Mashhad, Iran) that is equipped with an advanced heating, ventilating, and air conditioning (HVAC) system including HEPA filters for air cleaning. In this study, 432 samples were taken from the indoor air of multiple hospital wards during the morning and afternoon shifts during summer and autumn. The particle number concentrations with sizes of > 0.
View Article and Find Full Text PDFHealth-care waste management is a challenge for the health sector. Currently, pyrolysis technologies are being used to treat medical waste that can convert it to a hydrocarbon fuel. In the present study, hazardous health-care waste was pyrolyzed using a continuous tubular fast pyrolysis reactor.
View Article and Find Full Text PDFThis report investigates to analyse the production of waste in dental offices of Qaem Shahr city. In this study, from 120 dental offices in Qaem Shahr city, 21 offices were selected through random sampling. Sampling taken from 3 offices in 3 consecutive working days (on Sundays, Mondays and Tuesdays).
View Article and Find Full Text PDFBackground: Since the industrial revolution, the rate of industrialization and urbanization has increased dramatically. Regarding this issue, specific regions mostly located in developing countries have been confronted with serious problems, particularly environmental problems among which air pollution is of high importance.
Methods: Eleven parameters, including CO, SO2, PM10, PM2.