Deposition Modeling of Airborne Particulate Matter on Human Respiratory Tract During Winter Seasons in Arid-Urban Environment

Amoatey, Patrick; Omidvarborna, Hamid; Al‐Jabri, Khalifa; Al-Harthy, Issa; Baawain, Mahad; Al‐Mamun, Abdullah

doi:10.1007/s41810-021-00125-2

Cited by 8 publications

(3 citation statements)

References 72 publications

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“…In summary, given that BC is essentially bound to the finest particles, its deposition is governed by Brownian diffusion, and penetrates deeper into the airways, while PM 10 is mainly deposited in the upper region of the HRT by mechanisms involving impact and gravitational sedimentation [69,70]. These results are in line with findings from other authors [38,71,72]. Regardless of gender, total DF was mainly dependent on MMAD and GSD values.…”

Section: Deposition Fractions and Dose Of Pm 10 And Bcsupporting

confidence: 89%

Short-Term Exposure to PM10 and Black Carbon in Residential Microenvironments in Bragança, Portugal: A Case Study in Bedrooms, Living Rooms, and Kitchens

et al. 2023

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Several studies have evaluated PM concentrations in single specific microenvironments as a measure of exposure in the entire house. In this study, PM10 was monitored at the same time in three microenvironments (bedroom, living room, and kitchen) from three dwellings located in a small inland town of the Iberian Peninsula to assess whether exposure varies significantly between them. Real-time optical instruments and low-volume gravimetric samplers were employed. A multi-wavelength absorption instrument was used to determine black carbon (BC) concentrations on the filters. The Multiple-Path Particle Dosimetry Model (MPPD) was applied to evaluate the deposition of PM10 and BC in the airways of adults. For all dwellings, the highest PM10 concentrations were recorded in bedrooms (B1 = 22.7 µg m−3; B2 = 19.5 µg m−3; and B3 = 68.1 µg m−3). Houses 1 and 3 did not show significant differences between microenvironments. This did not happen in house 2, suggesting that ventilation is a determining factor for concentrations. BC originated mainly from fossil fuel emissions (90%), while biomass burning represented a minor contribution (10%). MPPD showed that PM10 is predominantly deposited in the head region (≥85% of the total dose), while BC is mainly deposited in the pulmonary region (14%). Higher doses were estimated for males than for females.

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Section: Deposition Fractions and Dose Of Pm 10 And Bcsupporting

confidence: 89%

Short-Term Exposure to PM10 and Black Carbon in Residential Microenvironments in Bragança, Portugal: A Case Study in Bedrooms, Living Rooms, and Kitchens

et al. 2023

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“…Other studies in large populations have clearly demonstrated that pollution with fine PM is associated with a very wide range of health effects, including emergency room visits and hospitalizations for cerebrovascular disease, even more in vulnerable groups, such as the elderly [ 16 – 18 ], premature mortality due to cardiovascular disease and ischemic heart disease [ 19 – 21 ], COPD incidence and hospitalization with it [ 22 , 23 ] and even depression [ 24 ] and suicides [ 25 ]. Given that low- and middle-income countries like Kazakhstan endure the greatest burden of PM 2.5 -related diseases, such as COPD [ 26 ], deposition of PM 2.5 is very high [ 27 ] and a very large fraction of ambient fine PM pollution during the cold season is found indoors, we call for urgent mitigation and control action. Our data now demonstrate that there is no place to escape in Almaty in the cold season from extreme air pollution, and a state-scale and governmental efforts must be undertaken to reduce emission from burning coal and wood in order to improve population health.…”

Section: Discussionmentioning

confidence: 99%

High levels of indoor fine particulate matter during the cold season in Almaty prompt urgent public health action

et al. 2023

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Introduction Almaty is the largest city of Kazakhstan with extreme air pollution, mostly in the cold season, but little is known whether staying indoors could lessen the exposure. The aim was to quantitatively characterize indoor fine PM levels and to verify the contribution of ambient pollution to it in a polluted city like Almaty. Methods We collected forty-six 24-hour 15-min average samples of the ambient air and a similar number of paired indoor samples (total 92 samples). Predictors of both ambient and indoor PM2.5 mass concentrations in mg/m3, including ambient concentration, precipitation, minimal daily temperature and humidity, along with the indoor/outdoor (I/O) ratio were tested in the adjusted regression models at eight 15-min lags. Results Ambient air PM2.5 15-min average mass concentrations were highly variable and ranged from 0.001 to 0.694 mg/m3 (geometric mean (GM) 0.090, geometric standard deviation (GSD) 2.285). Snowing was the strongest predictor of lower ambient PM2.5 24-hour mass concentrations (median 0.053 vs 0.135 mg/m3 (p<0.001)). Indoor mean 15-min PM2.5 concentrations ranged from 0.002 to 0.228 mg/m3 (GM 0.034, GSD 2.254). In adjusted models, outdoor PM2.5 concentration explained 0.58 of all variability of the indoor concentration with a 75-min delay (R2 0.67 at lag8 on snowing days). Median I/O ranged from 0.386 (IQR 0.264 to 0.532) at lag0 to 0.442 (IQR 0.339 to 0.584) at lag8. Conclusion During the cold season when fossil fuel is burnt for heating, the population in Almaty is exposed to very high fine PM levels even indoors. Urgent public health action is needed.

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“…Many studies have reported a link between indoor air PMs and health risks related to respiratory diseases [14].Dose estimation of these PMs in human respiratory system provides an incredible insight of the extent of deposition in different parts of lungs. PMs enters the human respiratory system through the nose or mouth, entering the lungs and may directly deposits in the head, tracheobronchial (TB) and pulmonary regions [15][16].It has been determined that deposition of PM varies with age of older and children being the most vulnerable to air pollution [17].The quantities deposited in the human respiratory tract (HRT) are an important potential causal element in studying the health effects of PM contamination [18].Several models were created to determine the total and regional deposition fractions, including the exposure dose model (ExDoM),ICRP,National Council on Radiation Protection and Measurement (NCRP) and MPPD [19][20][21][22][23].The MPPD model's user-friendly interface has led to a growing interest in the literature [24][25][26][27][28][29].In current study, the teenagers dwellers were divided into three classes pre-teenagers i.e., 8-12 years, teenagers i.e., 13-19 years and post-teenagers i.e., 20-21years.The classification was done owing to the fact that there are numerous hormonal fluctuations right before, during and after puberty. These changes affect the physical well-being as well as psychological development of a woman.…”

Section: Introductionmentioning

confidence: 99%

Carcinogenic and non-carcinogenic risk estimation of Indoor TVOCs, RSPM and Fine Particulate matter on young women dwellers in the capital city of most polluted state of India

Zehra,

Dwivedi,

Ali

et al. 2024

Preprint

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Total volatile organic compounds (TVOCs),respiratory suspended particulate matter (RSPM) i.e. (PM10,PM2.5) and fine particulate matter (FPM) i.e.PM1 have been found to exert negative impact on the women health, and may even lead cancer on prolonged exposure. Since women spend most of their time indoors, they are at greater risk of indoor pollution. This study was conducted to see the effect of indoor RSPM, FPM and TVOCs on women health predominantly on young women dwellers (specifically categorized into pre-teenagers i.e., 8–12 years, teenagers i.e., 13–19 years and post-teenagers i.e., 20–21 years). Indoor monitoring was conducted from November 2022 to February 2023 in six different urban households of Lucknow, capital city of most polluted and populated state of India. Envirotech APM 550 for RSPM, APM 577 for FPM and portable sensors (BR-SMART) were used to measure TVOCs. The highest average indoor concentrations was found to be 250.1 ± 14.11µg/m3 (PM10) at Rajajipuram, 140.62 ± 19.71µg/m3 (PM2.5) at Indranagar, 27.60 ± 1.87µg/m3 (PM1) and 934 ± 70.41 µg/m3 (TVOCs) at Kaiserbagh. To elucidate the spatial dynamics of these pollutants, the Inverse Distance Weighting (IDW) interpolation technique was employed. Additionally, site-specific analysis of PM mass ratios (PM2.5/PM10, PM1/PM2.5 and PM1/PM10) elucidated the particle size distribution and their sources, such as vehicle emissions and secondary aerosols, significantly enhancing the scientific understanding of aerosol dynamics in these urban settings. The study utilised sophisticated statistical methods in it’s source apportionment analysis to identify and measure the specific contributions of various indoor sources to the total pollution levels. Health risk assessment was also determined using average daily dose (ADD), excess lifetime cancer risk (ELCR) and hazard quotient (HQ) for carcinogenic and non-carcinogenic risk. ELCR values for PM1 and PM2.5 surpassed the permissible limit in every house, demonstrating a probable cancer-causing risk and HQ value also exceeded the minimum allowable value for 20–21 year age group at all of the locations, indicating substantial health risk from exposure. International Committee of Radiological Protection Model (ICRP) and Multiple Path Particle Dosimetry (MPPD) modeling were used to see the regional deposition of PMs on the young women dwellers. The ICRP results showed that deposition is higher for PM10 in head airways and results of MPPD revealed that the highest deposition in pulmonary region was tend to be in post teenagers, whereas, highest deposition in head region was in pre teenagers and teenagers. Hence, consociate to harmful pollutants at these stages might be tremendously hazardous which are often overlooked. According to the study, the results are very alarming and concerning, the indoor air exposure to PMs and TVOCs may raise the risk of various diseases in young women and may ultimate lead to cancers. High concentration exposure during young age is very harmful and may be a cause of various diseases during their motherhood and even cause concerning and problems in new borns.

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Deposition Modeling of Airborne Particulate Matter on Human Respiratory Tract During Winter Seasons in Arid-Urban Environment

Cited by 8 publications

References 72 publications

Short-Term Exposure to PM10 and Black Carbon in Residential Microenvironments in Bragança, Portugal: A Case Study in Bedrooms, Living Rooms, and Kitchens

Short-Term Exposure to PM10 and Black Carbon in Residential Microenvironments in Bragança, Portugal: A Case Study in Bedrooms, Living Rooms, and Kitchens

High levels of indoor fine particulate matter during the cold season in Almaty prompt urgent public health action

Carcinogenic and non-carcinogenic risk estimation of Indoor TVOCs, RSPM and Fine Particulate matter on young women dwellers in the capital city of most polluted state of India

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