1
|
Kang S, Lee JY, Cho KS. Implications of PM 2.5 chemical composition in modulating microbial community dynamics during spring in Seoul. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 348:123834. [PMID: 38518971 DOI: 10.1016/j.envpol.2024.123834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 03/16/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
Particulate matter with an aerodynamic diameter of 2.5 μm or less (PM2.5) harbors a diverse microbial community. To assess the ecological dynamics and potential health risks associated with airborne microorganisms, it is crucial to understand the factors influencing microbial communities within PM2.5. This study investigated the influence of abiotic parameters, including air pollutants, PM2.5 chemical composition (water-soluble ions and organics), and meteorological variables, on microbial communities in PM2.5 samples collected in Seoul during the spring season. Results revealed a significant correlation between air pollutants and water-soluble ions of PM2.5 with microbial α-diversity indices. Additionally, air pollutants exerted a dominant effect on the microbial community structure, with stronger correlations observed for fungi than bacteria, whereas meteorological variables including temperature, pressure, wind speed, and humidity exerted a limited influence on fungal α-diversity. Furthermore, the results revealed specific water-soluble ions, such as SO42-, NO3-, and NH4+, as important factors influencing fungal α-diversity, whereas K+ negatively correlated with both microbial α-diversity. Moreover, PM2.5 microbial diversity was affected by organic compounds within PM2.5, with fatty acids exhibited a positive correlation with fungal diversity, while dicarboxylic acids exhibited a negative correlation with it. Furthermore, network analysis revealed direct links between air pollutants and dominant bacterial and fungal genera. The air pollutants exhibited a strong correlation with bacterial genera, such as Arthrospira and Clostridium, and fungal genera, including Aureobasidium and Cladosporium. These results will contribute to our understanding of the ecological dynamics of airborne microorganisms and provide insights into the potential risks associated with PM2.5 exposure.
Collapse
Affiliation(s)
- Sookyung Kang
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Ji Yi Lee
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Kyung-Suk Cho
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea.
| |
Collapse
|
2
|
Debbarma S, Raparthi N, Venkataraman C, Phuleria HC. Characterization and apportionment of carbonaceous aerosol emission factors from light-duty and heavy-duty vehicle fleets in Maharashtra, India. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123479. [PMID: 38325510 DOI: 10.1016/j.envpol.2024.123479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/10/2024] [Accepted: 01/30/2024] [Indexed: 02/09/2024]
Abstract
This study aims to investigate the characteristics of carbonaceous aerosols and estimate emission factor (EF) based on roadway tunnel measurements, from two distinct vehicular fleets: an all light-duty vehicle (LDV) fleet, and a mixed fleet of 80% LDV and 20% heavy-duty vehicle (HDV). Carbonaceous content (organic carbon: OC and elemental carbon: EC) in total fine particles (PM2.5) accounted for 41% ± 6.8% in LDV fleet and 48% ± 7.2% in mixed fleet. While higher volatile OC dominated in the LDV fleet emissions, in mixed fleet, lower volatile OC and EC emissions dominated due to the presence of higher HDV and super-emitter (SE) fractions which led to significantly higher optically active absorbing aerosols. Reconstructed HDV fleet EF was higher than LDV fleet by 36 times (PM2.5), 19 times (OC) and 51 times (EC). Our findings emphasize the significance of implementing vehicle inspection and maintenance programs, coupled with decarbonization of HDVs to mitigate on-road vehicular emissions in India.
Collapse
Affiliation(s)
- Sohana Debbarma
- Interdisciplinary Programme in Climate Studies, Indian Institute of Technology Bombay, Mumbai, India
| | - Nagendra Raparthi
- Environmental Science and Engineering Department, Indian Institute of Technology Bombay, Mumbai, India; Air Quality Research Center, University of California Davis, Davis, CA, USA
| | - Chandra Venkataraman
- Interdisciplinary Programme in Climate Studies, Indian Institute of Technology Bombay, Mumbai, India; Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Harish C Phuleria
- Interdisciplinary Programme in Climate Studies, Indian Institute of Technology Bombay, Mumbai, India; Environmental Science and Engineering Department, Indian Institute of Technology Bombay, Mumbai, India.
| |
Collapse
|
3
|
Duan L, Yu H, Wang Q, Wang F, Lin T, Cao Y, Guo Z. A comprehensive exploration of characteristics and source attribution of carbonaceous aerosols in PM 2.5 in an East China megacity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 343:123239. [PMID: 38154782 DOI: 10.1016/j.envpol.2023.123239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/15/2023] [Accepted: 12/25/2023] [Indexed: 12/30/2023]
Abstract
A total of 84 PM2.5 (fine particulate matter) aerosol samples were collected between October 2020 and August 2021 within an urban site in Hangzhou, an East China megacity. Chemical species, such as organic carbon (OC), elemental carbon (EC), as well as char, soot, and n-alkanes, were analyzed to determine their pollution characteristics and source contributions. The mean yearly concentrations of OC, EC, char, soot, and total n-alkanes (∑n-alkane) were 8.76 ± 3.61 μg/m3, 1.44 ± 0.76 μg/m3, 1.21 ± 0.69 μg/m3, 0.3 ± 0.1 μg/m3, and 24.2 ± 10.6 ng/m3. The OC, EC, and ∑n-alkanes were found in the highest levels during winter and lowest during summer. There were strong correlations between OC and EC in both winter and spring, suggesting similar potential sources for these carbonaceous components in both seasons. There were poor correlations among the target pollutants due to summertime secondary organic carbon formation. Potential source contribution functions analysis showed that local pollution levels in winter and autumn were likely influenced by long-range transportation from the Plain of North China. Source index and positive matrix factorization models provided insights into the complex sources of n-alkanes in Hangzhou. Their major contributors were identified as terrestrial plant releases (32.7%), traffic emissions (28.8%), coal combustion (27.3%), and microbial activity (11.2%). Thus, controlling vehicular emissions and coal burning could be key measures to alleviate n-alkane concentrations in the atmosphere of Hangzhou, as well as other Chinese urban centers.
Collapse
Affiliation(s)
- Lian Duan
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai, 200438, China; Institute of Eco-Chongming (IEC), Shanghai, 200062, China
| | - Huimin Yu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai, 200438, China
| | - Qiongzhen Wang
- Environmental Science Research & Design Institute of Zhejiang Province, Hangzhou, Zhejiang, 310007, China; Key Laboratory of Environmental Pollution Control Technology of Zhejiang Province, Hangzhou, 310007, China
| | - Fengwen Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400030, China
| | - Tian Lin
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Yibo Cao
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai, 200438, China
| | - Zhigang Guo
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai, 200438, China; Institute of Eco-Chongming (IEC), Shanghai, 200062, China; State Environmental Protection Key Laboratory of Land and Sea Ecological Governance and Systematic Regulation, Shandong Academy for Environmental Planning, Jinan, 250101, China.
| |
Collapse
|
4
|
Fadel M, Courcot D, Delmaire G, Roussel G, Afif C, Ledoux F. Source apportionment of PM 2.5 oxidative potential in an East Mediterranean site. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:165843. [PMID: 37516168 DOI: 10.1016/j.scitotenv.2023.165843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/07/2023] [Accepted: 07/25/2023] [Indexed: 07/31/2023]
Abstract
This study aimed to evaluate the oxidative potential (OP) of PM2.5 collected for almost a year in an urban area of the East Mediterranean. Two acellular assays, based on ascorbic acid (AA) and dithiothreitol (DTT) depletion, were used to measure the OP. The results showed that the mean volume normalized OP-AAv value was 0.64 ± 0.29 nmol·min-1·m-3 and the mean OP-DTTv was 0.49 ± 0.26 nmol·min-1·m-3. Several approaches were adopted in this work to study the relationship between the species in PM2.5 (carbonaceous matter, water-soluble ions, major and trace elements, and organic compounds) or their sources and OP values. Spearman correlations revealed strong correlations of OP-AAv with carbonaceous subfractions as well as organic compounds while OP-DTTv seemed to be more correlated with elements emitted from different anthropogenic activities. Furthermore, a multiple linear regression method was used to estimate the contribution of PM2.5 sources, determined by a source-receptor model (Positive Matrix Factorization), to the OP values. The results showed that the sources that highly contribute to the PM2.5 mass (crustal dust and ammonium sulfate) were not the major sources contributing to the values of OP. Instead, 69 % of OP-AAv and 62 % of OP-DTTv values were explained by three local anthropogenic sources: Heavy Fuel Oil (HFO) combustion from a power plant, biomass burning, and road traffic emissions. As for the seasonal variations, higher OP-AAv values were observed during winter compared to summer, while OP-DTTv did not show any significant differences between the two seasons. The contribution of biomass burning during winter was 33 and 34 times higher compared to summer for OP-AAv and OP-DTTv, respectively. On the other hand, higher contributions were observed for HFO combustion during summer.
Collapse
Affiliation(s)
- Marc Fadel
- Emissions, Measurements, and Modeling of the Atmosphere (EMMA) Laboratory, CAR, Faculty of Sciences, Saint Joseph University, Beirut, Lebanon; Unité de Chimie Environnementale et Interactions sur le Vivant, UCEIV UR4492, Université du Littoral Côte d'Opale (ULCO), Dunkerque, France
| | - Dominique Courcot
- Unité de Chimie Environnementale et Interactions sur le Vivant, UCEIV UR4492, Université du Littoral Côte d'Opale (ULCO), Dunkerque, France
| | - Gilles Delmaire
- Laboratoire d'Informatique Signal et Image de la Côte d'Opale (LISIC), Université du Littoral Côte d'Opale, F-62228, Calais, France
| | - Gilles Roussel
- Laboratoire d'Informatique Signal et Image de la Côte d'Opale (LISIC), Université du Littoral Côte d'Opale, F-62228, Calais, France
| | - Charbel Afif
- Emissions, Measurements, and Modeling of the Atmosphere (EMMA) Laboratory, CAR, Faculty of Sciences, Saint Joseph University, Beirut, Lebanon; Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia, Cyprus
| | - Frédéric Ledoux
- Unité de Chimie Environnementale et Interactions sur le Vivant, UCEIV UR4492, Université du Littoral Côte d'Opale (ULCO), Dunkerque, France.
| |
Collapse
|
5
|
Fakhri N, Fadel M, Öztürk F, Keleş M, Iakovides M, Pikridas M, Abdallah C, Karam C, Sciare J, Hayes PL, Afif C. Comprehensive chemical characterization of PM 2.5 in the large East Mediterranean-Middle East city of Beirut, Lebanon. J Environ Sci (China) 2023; 133:118-137. [PMID: 37451782 DOI: 10.1016/j.jes.2022.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 06/28/2022] [Accepted: 07/07/2022] [Indexed: 07/18/2023]
Abstract
The chemical composition of PM2.5 at two sites in Lebanon, a country in the East Mediterranean - Middle East region, is investigated in the spring and summer seasons. The average PM2.5 concentrations were of (29 ± 16) µg/m3 for Beirut urban site and (32 ± 14) µg/m3 for Beirut suburban site. This study showed that the geographic location of the East Mediterranean region, such as its proximity to the Mediterranean Sea and the dust storm intrusion are a significant contributor to the high PM levels from natural sources, which cannot be mitigated, rendering the PM2.5 WHO annual Air Quality guideline unattainable due to high natural background, which also applies to the entire Middle East region. Turkey and Eastern Europe are the dominant origin of air masses throughout our sampling days, suggesting the long-range transport as an important potential contributor to the high observed concentrations of V, Ni, and sulfate in this region most probably in other East Mediterranean countries than Lebanon too. Main local sources determined through the chemical speciation including organics are road transport, resuspension of dust and diesel private generators. A health risk assessment of airborne metals was performed and the carcinogenic risk for all the metals exceeded by 42 (adults) and 14 (children) times the acceptable risk level (10-6) at both sites. Vanadium was the predominant carcinogenic metal, emphasizing the need to replace energy production with cleaner energy on a regional level and highlighting the severe impact of air pollution on the health of inhabitants in this region's main cities.
Collapse
Affiliation(s)
- Nansi Fakhri
- EMMA Research Group, Centre d' Analyses et de Recherche, Faculty of Sciences, Université Saint-Joseph, Beirut, Lebanon; Department of Chemistry, Faculty of Sciences, Université de Montréal, Montréal, Québec, Canada
| | - Marc Fadel
- EMMA Research Group, Centre d' Analyses et de Recherche, Faculty of Sciences, Université Saint-Joseph, Beirut, Lebanon
| | - Fatma Öztürk
- Environmental Engineering Department, Faculty of Engineering, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Melek Keleş
- Environmental Engineering Department, Faculty of Engineering, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Minas Iakovides
- Climate and Atmosphere Research Center (CARE-C), The Cyprus Institute, Nicosia, Cyprus
| | - Michael Pikridas
- Climate and Atmosphere Research Center (CARE-C), The Cyprus Institute, Nicosia, Cyprus
| | - Charbel Abdallah
- EMMA Research Group, Centre d' Analyses et de Recherche, Faculty of Sciences, Université Saint-Joseph, Beirut, Lebanon
| | - Cyril Karam
- EMMA Research Group, Centre d' Analyses et de Recherche, Faculty of Sciences, Université Saint-Joseph, Beirut, Lebanon
| | - Jean Sciare
- Climate and Atmosphere Research Center (CARE-C), The Cyprus Institute, Nicosia, Cyprus
| | - Patrick L Hayes
- Department of Chemistry, Faculty of Sciences, Université de Montréal, Montréal, Québec, Canada.
| | - Charbel Afif
- EMMA Research Group, Centre d' Analyses et de Recherche, Faculty of Sciences, Université Saint-Joseph, Beirut, Lebanon; Climate and Atmosphere Research Center (CARE-C), The Cyprus Institute, Nicosia, Cyprus.
| |
Collapse
|
6
|
Chen LWA, Wang X, Lopez B, Wu G, Ho SSH, Chow JC, Watson JG, Yao Q, Yoon S, Jung H. Contributions of non-tailpipe emissions to near-road PM 2.5 and PM 10: A chemical mass balance study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 335:122283. [PMID: 37517639 DOI: 10.1016/j.envpol.2023.122283] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 07/03/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
As the importance of non-tailpipe particles (NTP) over tailpipe emissions from urban traffic has been increasing, there is a need to evaluate NTP contributions to ambient particulate matter (PM) using representative source profiles. The Brake and Tire Wear Study conducted in Los Angeles, California in the winter of 2020 collected 64 PM2.5 and 64 PM10 samples from 32 pairs of downwind-upwind measurements at two near-road locations (I-5 in Anaheim and I-710 in Long Beach). These samples were characterized for inorganic and organic markers and, along with locally-developed brake wear, tire wear, and road dust source profiles, subject to source apportionment using the effective-variance chemical mass balance (EV-CMB) model. Model results highlighted the dominance of resuspended dust in both PM2.5 (23-33%) and PM10 (32-53%). Brake and tire wear contributed more to PM2.5 than tailpipe exhausts (diesel + gasoline) for I-5 (29-30% vs. 19-21%) while they were comparable for I-710 (15-17% vs. 15-19%). For PM10, the brake and tire wear contributions were 2-3 times the exhaust contributions. Different fleet compositions on and near I-5 and I-710 appeared to influence the relative importance of NTP and exhaust sources. The downwind-upwind differences in source contributions were often insignificant, consistent with small and/or nearly equal impacts of adjacent highway traffic emissions on the downwind and upwind sites. The utility of sole markers, such as barium and zinc, to predict brake and tire wear abundances in ambient PM is evaluated.
Collapse
Affiliation(s)
- L-W Antony Chen
- Department of Environmental and Occupational Health, School of Public Health, University of Nevada, Las Vegas, 4505 S. Maryland Pkwy, Las Vegas, NV, 89154, USA; Division of Atmospheric Sciences, Desert Research Institute, 2215 Raggio Pkwy, Reno, NV, 89512, USA.
| | - Xiaoliang Wang
- Division of Atmospheric Sciences, Desert Research Institute, 2215 Raggio Pkwy, Reno, NV, 89512, USA
| | - Brenda Lopez
- Department of Mechanical Engineering and Center for Environmental Research and Technology (CE-CERT), University of California-Riverside, 1084 Columbia Ave, Riverside, CA, 92507, USA
| | - Guoyuan Wu
- Department of Mechanical Engineering and Center for Environmental Research and Technology (CE-CERT), University of California-Riverside, 1084 Columbia Ave, Riverside, CA, 92507, USA
| | - Steven Sai Hang Ho
- Division of Atmospheric Sciences, Desert Research Institute, 2215 Raggio Pkwy, Reno, NV, 89512, USA
| | - Judith C Chow
- Division of Atmospheric Sciences, Desert Research Institute, 2215 Raggio Pkwy, Reno, NV, 89512, USA
| | - John G Watson
- Division of Atmospheric Sciences, Desert Research Institute, 2215 Raggio Pkwy, Reno, NV, 89512, USA
| | - Qi Yao
- Research Division, California Air Resources Board, 1001 I St, Sacramento, CA, 95814, USA
| | - Seungju Yoon
- Research Division, California Air Resources Board, 1001 I St, Sacramento, CA, 95814, USA
| | - Heejung Jung
- Department of Mechanical Engineering and Center for Environmental Research and Technology (CE-CERT), University of California-Riverside, 1084 Columbia Ave, Riverside, CA, 92507, USA
| |
Collapse
|
7
|
Ainur D, Chen Q, Sha T, Zarak M, Dong Z, Guo W, Zhang Z, Dina K, An T. Outdoor Health Risk of Atmospheric Particulate Matter at Night in Xi'an, Northwestern China. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023. [PMID: 37311058 DOI: 10.1021/acs.est.3c02670] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The deterioration of air quality via anthropogenic activities during the night period has been deemed a serious concern among the scientific community. Thereby, we explored the outdoor particulate matter (PM) concentration and the contributions from various sources during the day and night in winter and spring 2021 in a megacity, northwestern China. The results revealed that the changes in chemical compositions of PM and sources (motor vehicles, industrial emissions, coal combustion) at night lead to substantial PM toxicity, oxidative potential (OP), and OP/PM per unit mass, indicating high oxidative toxicity and exposure risk at nighttime. Furthermore, higher environmentally persistent free radical (EPFR) concentration and its significant correlation with OP were observed, suggesting that EPFRs cause reactive oxygen species (ROS) formation. Moreover, the noncarcinogenic and carcinogenic risks were systematically explained and spatialized to children and adults, highlighting intensified hotspots to epidemiological researchers. This better understanding of day-night-based PM formation pathways and their hazardous impact will assist to guide measures to diminish the toxicity of PM and reduce the disease led by air pollution.
Collapse
Affiliation(s)
- Dyussenova Ainur
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Qingcai Chen
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Tong Sha
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Mahmood Zarak
- UNSW Centre for Transformational Environmental Technologies, Yixing 214200, China
| | - Zipeng Dong
- Shaanxi Academy of Meteorological Sciences, Xi'an 710014, China
| | - Wei Guo
- Shaanxi Academy of Environmental Sciences, Xi'an 710061, China
| | - Zimeng Zhang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Kukybayeva Dina
- Faculty of Tourism and Languages, Yessenov University, Aktau 130000, Kazakhstan
| | - Taicheng An
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| |
Collapse
|
8
|
Drventić I, Glumac M, Carev I, Kroflič A. Seasonality of Polyaromatic Hydrocarbons (PAHs) and Their Derivatives in PM 2.5 from Ljubljana, Combustion Aerosol Source Apportionment, and Cytotoxicity of Selected Nitrated Polyaromatic Hydrocarbons (NPAHs). TOXICS 2023; 11:518. [PMID: 37368618 DOI: 10.3390/toxics11060518] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023]
Abstract
Airborne particulate matter (PM) is a vector of many toxic pollutants, including polyaromatic hydrocarbons (PAHs) and their derivatives. Especially harmful is the fine fraction (PM2.5), which penetrates deep into the lungs during inhalation and causes various diseases. Amongst PM2.5 components with toxic potential are nitrated PAHs (NPAHs), knowledge of which is still rudimentary. Three of the measured NPAHs (1-nitropyrene (1-nP), 9-nitroanthracene (9-nA), and 6-nitrochrysene (6-nC)) were detected in ambient PM2.5 from Ljubljana, Slovenia, along with thirteen non-nitrated PAHs. The highest concentrations of pollutants, which are closely linked with incomplete combustion, were observed in the cold part of the year, whereas the concentrations of NPAHs were roughly an order of magnitude lower than those of PAHs throughout the year. Further on, we have evaluated the toxicity of four NPAHs, including 6-nitrobenzo[a]pyrene (6-nBaP), to the human kidney cell line, HEK293T. The most potent was 1-nP (IC50 = 28.7 µM), followed by the other three NPAHs, whose IC50 was above 400 or 800 µM. According to our cytotoxicity assessment, atmospheric 1-nP is the most harmful NPAH among the investigated ones. Despite low airborne concentrations of NPAHs in ambient air, they are generally considered harmful to human health. Therefore, systematic toxicological assessment of NPAHs at different trophic levels, starting with cytotoxicity testing, is necessary in order to accurately evaluate their threat and adopt appropriate abatement strategies.
Collapse
Affiliation(s)
- Ivana Drventić
- Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Mateo Glumac
- Laboratory for Cancer Research, School of Medicine, University of Split, Šoltanska 2, 21000 Split, Croatia
| | - Ivana Carev
- NAOS Institute of Life Science, 355 rue Pierre-Simon Laplace, 13290 Aix-en-Provence, France
- Mediterranean Institute for Life Science, Meštrovićevo šetalište 45, 21000 Split, Croatia
- Faculty of Science, University of Split, Ruđera Boškovića 33, 21000 Split, Croatia
| | - Ana Kroflič
- Department of Catalysis and Chemical Reaction Engineering, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
| |
Collapse
|
9
|
Fakhri N, Fadel M, Pikridas M, Sciare J, Hayes PL, Afif C. Source apportionment of PM 2.5 using organic/inorganic markers and emission inventory evaluation in the East Mediterranean-Middle East city of Beirut. ENVIRONMENTAL RESEARCH 2023; 223:115446. [PMID: 36758920 DOI: 10.1016/j.envres.2023.115446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/21/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Source contributions to PM2.5 concentrations were evaluated in Greater Beirut (Lebanon), a typical East Mediterranean-Middle East (EMME) city, using Positive Matrix Factorization with two approaches. The first approach included only inorganic species (PMF-trad) and the other approach added organic markers (PMF-org). PMF-org identified 4 additional sources, and large discrepancies in contributions were observed for some major sources found in both approaches, highlighting the importance of including organic markers. The traffic factor was underestimated in PMF-trad by 2 to 7 folds. Moreover, results showed that this city is prone to high desert dust concentrations originating from uncontrollable dust storm events, like all cities in the Middle East. A PM2.5 mitigation plan taking into account the potency of the identified sources was developed. Sources like diesel generators or traffic presented smaller contributions in term of mass compared to desert dust, however the health impact of the latter is relatively small and actions should target sources with the highest potency. Local emission inventories in the EMME region are scarce and studies typically rely on global emission inventories for local air quality management plans, but these inventories significantly underestimate Beirut's road transport emissions by more than an order of magnitude.
Collapse
Affiliation(s)
- Nansi Fakhri
- EMMA Research Group, Centre d'Analyses et de Recherche, Faculty of Sciences, Université Saint-Joseph, Beirut, Lebanon; Department of Chemistry, Faculty of Arts and Sciences, Université de Montréal, Montréal, Québec, Canada
| | - Marc Fadel
- EMMA Research Group, Centre d'Analyses et de Recherche, Faculty of Sciences, Université Saint-Joseph, Beirut, Lebanon
| | - Michael Pikridas
- Climate and Atmosphere Research Center (CARE-C), The Cyprus Institute, Nicosia, Cyprus
| | - Jean Sciare
- Climate and Atmosphere Research Center (CARE-C), The Cyprus Institute, Nicosia, Cyprus
| | - Patrick L Hayes
- Department of Chemistry, Faculty of Arts and Sciences, Université de Montréal, Montréal, Québec, Canada.
| | - Charbel Afif
- EMMA Research Group, Centre d'Analyses et de Recherche, Faculty of Sciences, Université Saint-Joseph, Beirut, Lebanon; Climate and Atmosphere Research Center (CARE-C), The Cyprus Institute, Nicosia, Cyprus.
| |
Collapse
|
10
|
Fadel M, Ledoux F, Seigneur M, Oikonomou K, Sciare J, Courcot D, Afif C. Chemical profiles of PM 2.5 emitted from various anthropogenic sources of the Eastern Mediterranean: Cooking, wood burning, and diesel generators. ENVIRONMENTAL RESEARCH 2022; 211:113032. [PMID: 35248563 DOI: 10.1016/j.envres.2022.113032] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/21/2022] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
The chemical profiles of PM2.5 emitted from a non-road diesel generator, wood burning and cooking activities including chicken and beef charcoal grilling and general cooking activities were determined. The characterization included the carbonaceous fraction (OC/EC), water-soluble ions, elements, and organic species comprising n-alkanes, polycyclic aromatic hydrocarbons, carboxylic acids, levoglucosan, dioxins, furans, and dioxin-like polychlorinated biphenyls. The main component in the PM2.5 from the different sources was carbonaceous matter with a mass contribution to PM2.5 of 49% for cooking activities, 53% for wood burning, 66% for beef grilling, 72% for chicken grilling, and 74% for diesel generator with different OC/EC concentration ratios. The analysis of organic compounds contents using diagnostic ratios and indexes showed differences between the sources and revealed specific source markers. The water-soluble ions had the highest contribution in the cooking activities profile with 17% of PM2.5 and the least in the chicken grilling profile (1.1%). Additionally, 29 analyzed elements were identified, and their contribution varied with the sources (ranging from 1% to 11% of PM2.5). These findings could be used to differentiate these sources and could assist in the use of source apportionment methods.
Collapse
Affiliation(s)
- Marc Fadel
- Emissions, Measurements, and Modeling of the Atmosphere (EMMA) Laboratory, CAR, Faculty of Sciences, Saint Joseph University, Beirut, Lebanon; Unité de Chimie Environnementale et Interactions sur le Vivant, UCEIV UR4492, FR CNRS, 3417, University of Littoral Côte d'Opale (ULCO), Dunkerque, France
| | - Frédéric Ledoux
- Unité de Chimie Environnementale et Interactions sur le Vivant, UCEIV UR4492, FR CNRS, 3417, University of Littoral Côte d'Opale (ULCO), Dunkerque, France
| | - Marianne Seigneur
- Unité de Chimie Environnementale et Interactions sur le Vivant, UCEIV UR4492, FR CNRS, 3417, University of Littoral Côte d'Opale (ULCO), Dunkerque, France
| | | | - Jean Sciare
- Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia, Cyprus
| | - Dominique Courcot
- Unité de Chimie Environnementale et Interactions sur le Vivant, UCEIV UR4492, FR CNRS, 3417, University of Littoral Côte d'Opale (ULCO), Dunkerque, France
| | - Charbel Afif
- Emissions, Measurements, and Modeling of the Atmosphere (EMMA) Laboratory, CAR, Faculty of Sciences, Saint Joseph University, Beirut, Lebanon; Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia, Cyprus.
| |
Collapse
|
11
|
Zhang Q, Li Z, Wei P, Wang Q, Tian J, Wang P, Shen Z, Li J, Xu H, Zhao Y, Dang X, Cao J. Insights into the day-night sources and optical properties of coastal organic aerosols in southern China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 830:154663. [PMID: 35318062 DOI: 10.1016/j.scitotenv.2022.154663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 03/10/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
Organic aerosols (OAs) in particulate matter with an aerodynamic diameter of smaller than 2.5 μm (PM2.5) can affect the atmospheric radiation balance through varying molecular structure and light absorption of the aerosols. In this study, daytime and nighttime PM2.5 mass, and contents of OA including nitrated aromatic compounds (NACs), polycyclic aromatic hydrocarbons (PAHs), n-alkanes, and hopanes were measured from April 11th to May 15th, 2017, at the coastal Sanya, China. The average concentration of 18 total quantified PAHs (∑PAHs) was 2.08 ± 1.13 ng·m-3, which was 2.8 and 12 times higher than that of ∑NACs and hopanes, while was 7.5 times lower that of n-alkanes. Combustion-derived PAHs contributed 74% to the ∑PAHs. This finding, in addition to a high benzo[a]pyrene/(benzo[a]pyrene+benzo[e]pyrene) ratio, indicates that the PAHs mainly derived from fresh fuel combustion during the sampling periods. Furthermore, dramatic day-night differences were observed in the loadings of total NACs, PAHs, and n-alkanes, which had a high coefficient of divergence values of 0.67, 0.47, and 0.32, respectively. Moreover, hopanes exhibited similar variation as well. The proportion of dimethyl-nitrophenol (DM-NP), dinitrophenol (DNP), and nitrosalicylic acid (NSA) in PM2.5 were higher in the daytime than at nighttime, suggesting the co-influence of primary emissions and secondary formation related to biomass combustion. The positive matrix factorization (PMF) model revealed that motor vehicle and biomass burning emissions were the two main pollution sources in the daytime, contributing 51.7% and 24.6%, respectively, of the total quantified OAs. The proportion of industrial coal combustion emissions was higher at nighttime (20.6%) than in daytime (10%). Both the PAHs and NACs displayed light absorbing capacities among OAs compounds over Sanya City, and thus their influence on solar radiation must be considered in the future control policies.
Collapse
Affiliation(s)
- Qian Zhang
- Key Laboratory of Northwest Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Ziyi Li
- Key Laboratory of Northwest Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Peng Wei
- School of Geography and Environment, Shandong Normal University, Jinan 250358, PR China; Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Qiyuan Wang
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, China.
| | - Jie Tian
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
| | - Ping Wang
- Hainan Tropical Ocean University, Sanya 572022, China.
| | - Zhenxing Shen
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jianjun Li
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
| | - Hongmei Xu
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Youzhi Zhao
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
| | - Xiaoqing Dang
- Key Laboratory of Northwest Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Junji Cao
- Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China.
| |
Collapse
|
12
|
Ainur D, Chen Q, Wang Y, Li H, Lin H, Ma X, Xu X. Pollution characteristics and sources of environmentally persistent free radicals and oxidation potential in fine particulate matter related to city lockdown (CLD) in Xi'an, China. ENVIRONMENTAL RESEARCH 2022; 210:112899. [PMID: 35176313 PMCID: PMC9558116 DOI: 10.1016/j.envres.2022.112899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/29/2021] [Accepted: 02/03/2022] [Indexed: 05/17/2023]
Abstract
The impact of COVID-19 control on air quality have been prevalent for the past two years, however few studies have explored the toxicity of atmospheric particulate matter during the epidemic control. Therefore, this research highlights the characteristics and sources of oxidative potential (OP) and the new health risk substances environmentally persistent free radicals (EPFRs) in comparison to city lockdown (CLD) with early days of 2019-2020. Daily particulate matter (PM2.5) samples were collected from January 14 to February 3, 2020, with the same period during 2019 in Xi'an city. The results indicated that the average concentration of PM2.5 decreased by 48% during CLD. Concentrations of other air pollutants and components, such as PM10, NO2, SO2, WSIs, OC and EC were also decreased by 22%, 19%, 2%, 17%, 6%, and 4% respectively during the CLD, compared to the same period in 2019. Whereas only O3 increased by 30% during CLD. The concentrations of EPFRs in PM2.5 was considerably lower than in 2019, which decreased by 12% during CLD. However, the OP level was increased slightly during CLD. Moreover, both EPFRs/PM and DTTv/PM did not decrease or even increase significantly, manifesting that the toxicity of particulate matter has not been reduced by more gains during the CLD. Based on PMF analysis, during the epidemic period, the contribution of traffic emission is significantly reduced, while EPFRs and DTTv increased, which consist of significant O3 and secondary aerosols. This research leads to able future research on human health effect of EPFRs and oxidative potential and can be also used to formulate the majors to control EPFRs and OP emissions, suggest the need for further studies on the secondary processing of EPFRs and OP during the lockdown period in Xi'an. .The COVID-19 lockdown had a significant impact on both social and economic aspects. The city lockdown, however, had a positive impact on the environment and improved air quality, however, no significant health benefits were observed in Xi'an, China.
Collapse
Affiliation(s)
- Dyussenova Ainur
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Qingcai Chen
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Yuqin Wang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Hao Li
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Hao Lin
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Xuying Ma
- College of Geomatics, Xi'an University of Science and Technology, Xi'an, 710054, China
| | - Xin Xu
- Xi'an Institute for Innovative Earth Environment Research, Xi'an, 710061, China
| |
Collapse
|
13
|
Fan W, Chen T, Zhu Z, Zhang H, Qiu Y, Yin D. A review of secondary organic aerosols formation focusing on organosulfates and organic nitrates. JOURNAL OF HAZARDOUS MATERIALS 2022; 430:128406. [PMID: 35149506 DOI: 10.1016/j.jhazmat.2022.128406] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 06/14/2023]
Abstract
Secondary organic aerosols (SOA) are crucial constitution of fine particulate matter (PM), which are mainly derived from photochemical oxidation products of primary organic matter and volatile organic compounds (VOCs), and can induce terrible impacts to human health, air quality and climate change. As we know, organosulfates (OSs) and organic nitrates (ON) are important contributors for SOA formation, which could be possibly produced through various pathways, resulting in extremely complex formation mechanism of SOA. Although plenty of research has been focused on the origins, spatial distribution and formation mechanisms of SOA, a comprehensive and systematic understanding of SOA formation in the atmosphere remains to be detailed explored, especially the most important OSs and ON dedications. Thus, in this review, we systematically summarize the recent research about origins and formation mechanisms of OSs and ON, and especially focus on their contribution to SOA, so as to have a clearer understanding of the origin, spatial distribution and formation principle of SOA. Importantly, we interpret the complex interaction with coexistence effect of SOx and NOx on SOA formation, and emphasize the future insights for SOA research to expect a more comprehensive theory and practice to alleviate SOA burden.
Collapse
Affiliation(s)
- Wulve Fan
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Safety, Shanghai 200092, China
| | - Ting Chen
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Safety, Shanghai 200092, China
| | - Zhiliang Zhu
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Safety, Shanghai 200092, China.
| | - Hua Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China
| | - Yanling Qiu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Safety, Shanghai 200092, China
| | - Daqiang Yin
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Safety, Shanghai 200092, China.
| |
Collapse
|
14
|
Inventory of Commercial Cooking Activities and Emissions in a Typical Urban Area in Greece. ATMOSPHERE 2022. [DOI: 10.3390/atmos13050792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The pollutants emitted during meal preparation in restaurants deteriorate the air quality. Thus, it is an environmental issue that needs to be addressed, especially in areas where these activities are densely located. The purpose of this study is to examine the impact on air quality from commercial cooking activities by performing a qualitative and quantitative analysis of the related parameters. The area of interest is located in the southeastern Mediterranean (Greater Athens area in Greece). Due to the lack of the necessary activity information, a survey was conducted. Emissions from the fuel burnt during the cooking procedures were calculated and it was found that, overall, 940.1 tonnes are attributed to commercial cooking activities annually (generated by classical pollutants, heavy metals, particulates and polycyclic aromatic hydrocarbon emissions). Comparing the contribution of different sources to the pollutants emitted, it was found that commercial cooking is responsible for about 0.6%, 0.8% and 1.0% of the total CO, NOx and PM10 values. Cooking organic aerosol (COA) and volatile organic compound (VOC) emissions from grilled meat were also calculated, accounting for 724.9 tonnes and 37.1 tonnes, respectively. Monthly, daily and hourly profiles of the cooking activities were developed and emissions were spatially disaggregated, indicating the city center as the area with higher values. Numerical simulations were performed with the WRF/CAMx modeling system and the results revealed a contribution of about 6% to the total PM10 concentrations in the urban center, where the majority of restaurants are located.
Collapse
|
15
|
Feng T, Wang F, Yang F, Li Z, Lu P, Guo Z. Carbonaceous aerosols in urban Chongqing, China: Seasonal variation, source apportionment, and long-range transport. CHEMOSPHERE 2021; 285:131462. [PMID: 34252809 DOI: 10.1016/j.chemosphere.2021.131462] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/29/2021] [Accepted: 07/06/2021] [Indexed: 06/13/2023]
Abstract
Seventy-seven PM2.5 samples were collected at an urban site (Chongqing University Campus A) in October 2015 (autumn), December 2015 (winter), March 2016 (spring), and August 2016 (summer). These samples were analysed for organic carbon (OC), elemental carbon (EC), and their associated char, soot, 16 PAHs, and 28 n-alkanes to trace sources, and atmospheric transport pathways. The annual average of OC, EC, char, soot, ΣPAHs, and Σn-alkanes were 20.75 μg/m3, 6.18 μg/m3, 5.43 μg/m3, 0.75 μg/m3, 38.29 ng/m3, and 328.69 ng/m3, respectively. OC, ΣPAHs, and Σn-alkane concentrations were highest in winter and lowest in summer. EC, char, and soot concentrations were highest in autumn and lowest in winter. Source apportionment via positive matrix factorization (PMF) indicated that coal/biomass combustion-natural gas emissions (23.8%) and motor vehicle exhaust (20.2%) were the two major sources, followed by diesel and petroleum residue (21.1%), natural biogenic sources (17.7%), and evaporative/petrogenic sources (17.2%). The highest source contributor in autumn and winter was evaporative/petrogenic sources (30.6%) and natural biogenic sources (34.5%), respectively, whereas diesel engine emission contributed the most in spring and summer (32.1% and 38.0%, respectively). Potential source contribution function (PSCF) analysis identified southeastern Sichuan and northwestern Chongqing as the major potential sources of these pollutants. These datasets provide critical information for policymakers to establish abatement strategies for the reduction of carbonaceous pollutant emissions and improve air quality in Chongqing and other similar urban centres across China.
Collapse
Affiliation(s)
- Ting Feng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400030, China; Department of Environmental Science, Chongqing University, Chongqing, 400030, China
| | - Fengwen Wang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400030, China; Department of Environmental Science, Chongqing University, Chongqing, 400030, China; Key Laboratory for Urban Atmospheric Environment Integrated Observation & Pollution Prevention and Control of Chongqing, Chongqing Academy of Eco-Environmental Sciences, Chongqing, 401147, China.
| | - Fumo Yang
- Department of Environmental Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Zhenliang Li
- Key Laboratory for Urban Atmospheric Environment Integrated Observation & Pollution Prevention and Control of Chongqing, Chongqing Academy of Eco-Environmental Sciences, Chongqing, 401147, China
| | - Peili Lu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400030, China; Department of Environmental Science, Chongqing University, Chongqing, 400030, China
| | - Zhigang Guo
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| |
Collapse
|
16
|
Exposure to Atmospheric Particulate Matter-Bound Polycyclic Aromatic Hydrocarbons and Their Health Effects: A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18042177. [PMID: 33672189 PMCID: PMC7926315 DOI: 10.3390/ijerph18042177] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 12/16/2022]
Abstract
Particulate matter (PM) is a major factor contributing to air quality deterioration that enters the atmosphere as a consequence of various natural and anthropogenic activities. In PM, polycyclic aromatic hydrocarbons (PAHs) represent a class of organic chemicals with at least two aromatic rings that are mainly directly emitted via the incomplete combustion of various organic materials. Numerous toxicological and epidemiological studies have proven adverse links between exposure to particulate matter-bound (PM-bound) PAHs and human health due to their carcinogenicity and mutagenicity. Among human exposure routes, inhalation is the main pathway regarding PM-bound PAHs in the atmosphere. Moreover, the concentrations of PM-bound PAHs differ among people, microenvironments and areas. Hence, understanding the behaviour of PM-bound PAHs in the atmosphere is crucial. However, because current techniques hardly monitor PAHs in real-time, timely feedback on PAHs including the characteristics of their concentration and composition, is not obtained via real-time analysis methods. Therefore, in this review, we summarize personal exposure, and indoor and outdoor PM-bound PAH concentrations for different participants, spaces, and cities worldwide in recent years. The main aims are to clarify the characteristics of PM-bound PAHs under different exposure conditions, in addition to the health effects and assessment methods of PAHs.
Collapse
|