Impact of Middle Eastern dust storms on indoor and outdoor composition of bioaerosol

Soleimani, Zahra; Goudarzi, Gholamreza; Sorooshian, Armin; Marzouni, Mohammad Bagherian; Maleki, Heidar

doi:10.1016/j.atmosenv.2016.05.023

Cited by 78 publications

(40 citation statements)

References 35 publications

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“…Bacteria and fungi are the main species of bioaerosols in ORs that are transported through air, including from the outdoor environment (Soleimani et al, 2016), and introduced via visitors and hospital personnel via respiration, coughing, and sneezing (Saadoun et al, 2008). Thus, it is important to assess the efficacy of disinfection and sterilization procedures in minimizing bioaerosol concentrations in hospitals rooms, particularly ORs (Dharan and Pittet, 2002; Landrin et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

“…Bioaerosol concentrations in indoor air, especially hospitals and their operating rooms (ORs), pose a public health issue in developing countries (Napoli et al, 2012; Nourmoradi et al, 2012; Soleimani et al, 2016). Fungal and bacterial bioaerosols can cause acute diseases, infections, asthma, rhinitis, and allergies in indoor air, such as ORs (Azimi et al, 2013; Dales et al, 1991; Goudarzi et al, 2014; Khan and Karuppayil, 2012; Mandal and Brandl, 2011; Saadoun et al, 2008; Soleimani et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Fungal and bacterial bioaerosols can cause acute diseases, infections, asthma, rhinitis, and allergies in indoor air, such as ORs (Azimi et al, 2013; Dales et al, 1991; Goudarzi et al, 2014; Khan and Karuppayil, 2012; Mandal and Brandl, 2011; Saadoun et al, 2008; Soleimani et al, 2016). Patients may also be a source of airborne microorganisms that can affect other vulnerable patients, personnel, and visitors in hospitals (Qudiesat et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Concentration and type of bioaerosols before and after conventional disinfection and sterilization procedures inside hospital operating rooms

Dehghani

Sorooshian

Nazmara

et al. 2018

Ecotoxicology and Environmental Safety

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Operating rooms (ORs) in hospitals are sensitive wards because patients can get infections. This work aimed to characterize the type and concentration of bioaerosols in nine ORs of an educational hospital before and after sterilization and disinfection. During 2017, fungal samples were incubated at 25–28 °C for 3–7 days and bacterial samples at 37 °C for 24–48 h. The study results showed that the concentrations of fungi before cleaning procedures (for both of disinfection and sterilization) were limited from 4.83 to 18.40 CFU/m3 and after cleaning procedures ranged from 1.90 to 8.90 CFU/m3. In addition, the concentrations of bacteria before cleaning procedures were limited 14.65–167.40 CFU/m3 and after cleaning procedures ranged from 9.50 to 38.40 CFU/m3. The difference between the mean concentrations of airborne bioaerosols before and after sterilization was significantly different than the suggested value of 30 CFU/m3 (p ≤ 0.05). The bacterial concentration was higher than the recommended value (30 CFU/m3) in 41% of the ORs. The main fungal species identified in the indoor air of ORs (before vs. after sterilization) were A. fumigatus (25.6 vs. 18.3%), A. Niger (11.6 vs. 5.8%), Penicillium spp. (5.5 vs. 3.3%), Alternaria spp. (2.8 vs. 0.7%), Fusarium spp. (9.7 vs. 3.7%), Mucor spp. (15 vs. 12.7%), Cephalotrichum spp. (1.7 vs. 0.8%), A. Flavus (24.6 vs. 18.5%), Cladosporium spp. (2.6 vs. 0.8%), and Trichoderma spp. (0 vs.0.9%). The growth of biological species even after sterilization and disinfection likely resulted from factors including poor ventilation, sweeping of OR floors, inadequate HVAC filtration, high humidity, and also lack of optimum management of infectious waste after surgery. Designing well-constructed ventilation and air-conditioning systems, replacing HEPA filters, implementing more stringent, frequent, and comprehensive disinfection procedures, and controlling temperature and humidity can help decrease bioaerosols in ORs.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Concentration and type of bioaerosols before and after conventional disinfection and sterilization procedures inside hospital operating rooms

Dehghani

Sorooshian

Nazmara

et al. 2018

Ecotoxicology and Environmental Safety

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“…Among these cities, all of which are in western Iran, Ahvaz is the most populated with approximately 1.11 million people (UN Data, 2013; http://data.un.org/). As a result, dust is a major issue in Ahvaz owing to effects on public health, visibility, radiative transfer, agriculture, air traffic, industrial activity, and tourism (e.g., Soleimani et al, 2013, 2016; Derakhshandeh et al, 2014; Goudarzi et al, 2014). Major sources of dust observed in Ahvaz include the Sahara Desert and deserts in Iraq, Saudi Arabia and Kuwait (Soleimani et al, 2013; Naimabadi et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Temporal profile of PM 10 and associated health effects in one of the most polluted cities of the world (Ahvaz, Iran) between 2009 and 2014

et al. 2016

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Ahvaz, Iran ranks as the most polluted city of the world in terms of PM10 concentrations that lead to deleterious effects on its inhabitants. This study examines diurnal, weekly, monthly and annual fluctuations of PM10 between 2009 and 2014 in Ahvaz. Health effects of PM10 levels are also assessed using the World Health Organization AirQ software. Over the study period, the mean PM10 level in Ahvaz was 249.5 µg m−3, with maximum and minimum values in July (420.5 µg m−3) and January (154.6 µg m−3), respectively. The cumulative diurnal PM10 profile exhibits a dominant peak between 08:00–11:00 (local time) with the lowest levels in the afternoon hours. While weekend PM10 levels are not significantly reduced as compared to weekdays, an anthropogenic signature is instead observed diurnally on weekdays, which exhibit higher PM10 levels between 07:00–17:00 by an average amount of 14.2 µg m−3 as compared to weekend days. PM10 has shown a steady mean-annual decline between 2009 (315.2 µg m−3) and 2014 (143.5 µg m−3). The AirQ model predicts that mortality was a health outcome for a total of 3777 individuals between 2009 and 2014 (i.e., 630 per year). The results of this study motivate more aggressive strategies in Ahvaz and similarly polluted desert cities to reduce the health effects of the enormous ambient aerosol concentrations.

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“…Seriousness of air pollution lies in the fact that high, potentially harmful pollutant levels are produced in environments which can be harmful for human health (Geravandi et al 2016a;Goudarzi et al 2015d;Taghavirad et al 2014;Ghozikali et al 2015b;Soleimani et al 2016;Neisi et al 2016;Naimabadi et al 2016). The most important of air pollutants are particulate matter, ozone (O 3 ), nitrogen dioxide (NO 2 ), sulfur dioxide (SO 2 ), and carbon monoxide (CO) (Peters et al 2000;Wong et al 2002;Zallaghi et al 2015).…”

Section: Introductionmentioning

confidence: 99%

An evaluation of hospital admission respiratory disease attributed to sulfur dioxide ambient concentration in Ahvaz from 2011 through 2013

Goudarzi

Geravandi

Idani

et al. 2016

Environ Sci Pollut Res

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Impact of Middle Eastern dust storms on indoor and outdoor composition of bioaerosol

Cited by 78 publications

References 35 publications

Concentration and type of bioaerosols before and after conventional disinfection and sterilization procedures inside hospital operating rooms

Concentration and type of bioaerosols before and after conventional disinfection and sterilization procedures inside hospital operating rooms

Temporal profile of PM 10 and associated health effects in one of the most polluted cities of the world (Ahvaz, Iran) between 2009 and 2014

An evaluation of hospital admission respiratory disease attributed to sulfur dioxide ambient concentration in Ahvaz from 2011 through 2013

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