کل 30678

 Environmental pollution

24اردیبهشت
Monitoring the air fungal contamination load in two educational hospitals in Sanandaj, Iran

Monitoring the air fungal contamination load in two educational hospitals in Sanandaj, Iran

Opportunistic fungal pathogens are known to increase infection in the health care workers and patients with immune deficiency. This study aimed to investigate the qualitative and quantitative airborne fungal contamination load in two Sanandaj hospitals. In this cross-sectional study, 112 biological samples from 15 different hospital wards were collected for 6 months by using the single-stage Anderson sampler in Sabouraud’s dextrose agar.

22اردیبهشت
Biodegradation of methylene blue from aqueous solution by bacteria isolated from contaminated soil

Biodegradation of methylene blue from aqueous solution by bacteria isolated from contaminated soil

The use of biodegradation methods by microorganisms in the removal of industrial dyes are widely considered owing to their high efficiency and compatibility to the environment. Therefore, this study aims to evaluate the biodegradation of methylene blue (MB) from aqueous solution by bacteria isolated from contaminated soil.

12اردیبهشت
Noise pollution and its spatial distribution in urban environments (case study: Yazd city, Iran)

Noise pollution and its spatial distribution in urban environments (case study: Yazd city, Iran)

This study focuses on identifying source and frequency of noise pollution in Yazd, Iran. For data collection, we used two approaches: First we selected 55 monitoring stations for 122 km grid network; the distance between two stations was 2 km. Then, at the same time, we measured the sound pressure level (SPL) at main roads; the distance between two monitoring stations in this case was 1 km.