Joint Iranian-Russian studies of airborne asbestos concentrations in Tehran, Iran, in 2017

Khadem, Monireh; Somea, Mirghani Seyed; Hassankhani, Hossein; Heravizadeh, Omid Reza

doi:10.1016/j.atmosenv.2018.05.022

Cited by 16 publications

(11 citation statements)

References 6 publications

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“…Regarding sources of asbestosis, it should be noted that, as over 70% of the air pollution in Tehran is generated by vehicles (Jafari et al 2018), our results also suggested that the high level of asbestos is mostly attributed to brake, fork, glue, and washer of vehicles (Khadem et al 2018). In addition, in some cases, the asbestos fiber has an industrial origin, and construction operations can also claim a small share in the level of the ambient air asbestos (Awad 2011).…”

Section: Source Apportionment Of Organic and Inorganic Pollutantssupporting

confidence: 64%

“…Generally, exposure to asbestos fiber depends on the concentration of its fibers in the air and the type of scenario considered for risk assessment (Khadem et al 2018). There are two types of scenarios for asbestos risk assessment, including occupational scenario and scenario for the public (residential).…”

Section: Risk Assessment Of Exposure To Organic and Inorganic Contaminantsmentioning

confidence: 99%

“…The difference between these two scenarios lies in the duration of exposure, which is considered eight hours and 24 h for occupational and public environments, respectively. Furthermore, in the occupational scenario, no distinction is made between the age groups (Khadem et al 2018). The exposure concentrations (EC) values determined for the public scenario and age populations are tabulated in Table 6.…”

Section: Risk Assessment Of Exposure To Organic and Inorganic Contaminantsmentioning

confidence: 99%

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Occurrence, spatial distribution, seasonal variations, potential sources, and inhalation-based health risk assessment of organic/inorganic pollutants in ambient air of Tehran

Kermani

Asadgol

Gholami

et al. 2020

Environ Geochem Health

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The present study evaluated the concentrations, spatial distribution, seasonal variations, potential sources, and risk assessment of organic/ inorganic pollutants in ambient air of Tehran city. Totally, 180 air samples were taken from 9 sampling stations from March 2018 to March 2019 and were analyzed to determine the concentrations of organic pollutants (BTEX compounds and PM 2.5 -bound PAHs) plus inorganic pollutants (PM 2.5 -bound metals and asbestos fibers). The results revealed that the mean concentrations of P PAHs, BTEX, P heavy metals, and asbestos fibers were 5.34 ng/m 3 , 60.55 lg/m 3 , 8585.12 ng/m 3 , and 4.13 fiber/ml in the cold season, respectively, and 3.88 ng/m 3 , 33.86 lg/m 3 , 5682.61 ng/m 3 , and 3.21 fiber/ml in the warm season, respectively. Source apportionment of emission of the air pollutants showed that PAHs are emitted from diesel vehicles and industrial activities. BTEX and asbestos are also released mainly by vehicles. The results of the inhalation-based risk assessment indicated that the carcinogenic risk of PAHs, BTEX, and asbestos exceeded the recommended limit by The US environmental protection agency (US EPA) and WHO Majid Kermani and Zahra Asadgol are considered as joint first authors.

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Section: Source Apportionment Of Organic and Inorganic Pollutantssupporting

confidence: 64%

Section: Risk Assessment Of Exposure To Organic and Inorganic Contaminantsmentioning

confidence: 99%

Section: Risk Assessment Of Exposure To Organic and Inorganic Contaminantsmentioning

confidence: 99%

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Occurrence, spatial distribution, seasonal variations, potential sources, and inhalation-based health risk assessment of organic/inorganic pollutants in ambient air of Tehran

Kermani

Asadgol

Gholami

et al. 2020

Environ Geochem Health

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“…Asbestos refers to a group of silicate minerals classified into amphiboles ( including amosite, crocidolite, termolite, actinolite, and anthophyllite) and serpentine which is asbestos of chrysotile type (Kakooei et al 2009). Amphiboles are hazardous for human health due to their carcinogenic properties (Khadem et al 2018). Use of asbestos over the recent decades has become very common because of its unique characteristic properties (being inexpensive, desirable quality, resistance to heat and chemicals, strength, flexibility, and low electrical conductivity) (Walton 1982).…”

Section: Introductionmentioning

confidence: 99%

Concentrations, spatial distribution, and human health risk assessment of asbestos fibers in ambient air of Tehran, Iran

et al. 2021

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The aim of current research was to determine airborne asbestos fiber concentrations in the ambient air of Tehran, and to investigate their spatial distribution, seasonal variation, and human health risk assessment. For this, the sampling of the study was carried out during August 2017 and June 2018, and totally, 64 samples were taken from 8 stations along the different areas of Tehran. The concentrations of airborne asbestos fibers were determined by phase contrast microscope (PCM) and scanning electron microscopy (SEM) analyses. Spatial mapping was conducted using the inverse distance weighting (IDW) technique. The health risk assessment was done based on the detected levels of airborne asbestosis fibers. The mean concentrations of the airborne asbestos fiber were 1.9 × 10 −3 f/ml and 595 × 10 −3 f/ml based on PCM and SEM analyses, respectively. One of the effective factors on ambient level of asbestos fibers is meteorological parameters, where the maximum and minimum concentrations of asbestos fibers are related to cold and warm seasons, respectively. These differences could be due to the presence of inversions phenomenon in cold seasons in Tehran. It was observed that the excess lifetime cancer risk (ELCR) calculated for all the sampling areas are between 5.26 × 10 −5 and 5.37 × 10 −4 . Based on the EPA-suggested standards (10 −4 -10 −6 ), these values are categorized rather to moderate levels. The obtained data indicated no threat of asbestos fibers to Tehran's citizens' health.

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“…While asbestos is not volatile, small fibers and clumps of asbestos fibers may be released to ambient air as a dust (Lee, et al, 1992;Khadem, et al, 2018), and the health risks of exposure to such fibers/dust have been studied and debated for many years (Hwang & Park, 2016;Kwon, et al, 2017;Algranti, et al,2019;Fitzgerald, et al,2019). Clumps of mined asbestos can be broken down into loose fibers or fiber bundles, and can be mixed with other materials, such as cement, to produce a variety of building products (Figs.…”

Section: Introductionmentioning

confidence: 99%

تقدير تركيز العناصر والأكاسيد في غبار أسقف الأسبستوس المستخدمة في منازل بلدة القلوعة، اليمن

Salem¹,

Saeed²

2020

Journal of Natural Sciences, Life and Applied Sciences

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In this research we evaluated elements and oxides concentration of corrugated asbestos cement used in the roofs of houses in Al-Qalluah area- Aden city, Yemen in the period from August to September 2018. In Aden city, many houses were built between 1880 and 1990 and therefore corrugated asbestos cement roofs as one type of asbestos boards, were used widely in coverage of the buildings and garages. Airborne asbestos fibers may remain suspended in the air for some time and can be carried long distances by wind before settling down. The risk of developing asbestos-related diseases, like lung cancer, is associated with the level and duration of exposure. All the dust samples collected from different sites in Al-Qalluah area were sent to the National Research Center- Cairo and analyzed by QUANTA FEG 250 polarized-light microscopy (PLM), using the EPA 600/R-93/116 method. The overall results of scanning PLM for dust samples have shown fibers of asbestos with diameter ranged between 2.634-22.49μm. PLM quantitative analysis coupled with EDAX TEAM have found the mean concentrations 39, 36.5, 19.2, 31.8, 36.7 and 28.4 wt/wt% with respect to C, O, Mg, Al, Si, and Ca, while the mean concentrations of oxides CO2, MgO, Al2O3, SiO2, CaO, SO3, Fe2O3, K2O and Cl2O, were 46.4, 13.6, 34.8, 47.5, 29.0, 29.1, 31.5, 32.0 and 43.8 wt/wt% respectively. Asbestos boards should be encapsulated by a safe material to prevent or reduce their risks and the authorities should stop asbestos impacts on the environment and human health.

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Joint Iranian-Russian studies of airborne asbestos concentrations in Tehran, Iran, in 2017

Cited by 16 publications

References 6 publications

Occurrence, spatial distribution, seasonal variations, potential sources, and inhalation-based health risk assessment of organic/inorganic pollutants in ambient air of Tehran

Occurrence, spatial distribution, seasonal variations, potential sources, and inhalation-based health risk assessment of organic/inorganic pollutants in ambient air of Tehran

Concentrations, spatial distribution, and human health risk assessment of asbestos fibers in ambient air of Tehran, Iran

تقدير تركيز العناصر والأكاسيد في غبار أسقف الأسبستوس المستخدمة في منازل بلدة القلوعة، اليمن

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