Polycyclic aromatic hydrocarbons air levels in Florence, Italy, and their correlation with other air pollutants

Chemosphere ◽  
2003 ◽  
Vol 50 (3) ◽  
pp. 377-382 ◽  
Author(s):  
M Lodovici ◽  
M Venturini ◽  
E Marini ◽  
D Grechi ◽  
P Dolara
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Air Pollutants ◽  
Polycyclic Aromatic

Effects of biodiesel on emissions of regulated air pollutants and polycyclic aromatic hydrocarbons under engine durability testing

2007 ◽  
Vol 41 (34) ◽  
pp. 7232-7240 ◽  
Author(s):  
Hsi-Hsien Yang ◽  
Shu-Mei Chien ◽  
Mei-Yu Lo ◽  
John Chi-Wei Lan ◽  
Wen-Chang Lu ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Air Pollutants ◽  
Polycyclic Aromatic ◽  
Durability Testing

scholarly journals Characteristics of Polycyclic Aromatic Hydrocarbons (PAHs) and Common Air Pollutants at Wajima, a Remote Background Site in Japan

2020 ◽  
Vol 17 (3) ◽  
pp. 957 ◽  
Author(s):  
Xuan Zhang ◽  
Lulu Zhang ◽  
Lu Yang ◽  
Quanyu Zhou ◽  
Wanli Xing ◽  
...  
Keyword(s):  
Air Pollution ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Air Pollutants ◽  
Sampling Site ◽  
Air Pollutant ◽  
Diagnostic Ratios ◽  
Back Trajectory ◽  
Background Site ◽  
Polycyclic Aromatic

Background: Background sites are mainly affected by long-range-transported air pollutants, resulting in potential adverse effects on local atmospheric environments. A 4–5 year observational study was conducted to illustrate the air pollution profile at the Kanazawa University Wajima air monitoring station (KUWAMS), an ideal remote background site in Japan. Methods: Nine polycyclic aromatic hydrocarbons (PAHs) in the particulate phase and various air pollutants were continuously monitored for 4–5 years. Diagnostic ratios of PAHs and back-trajectory analysis were applied to trace the possible sources of the air pollutants collected at the sampling site. Results: The atmospheric concentration of PAHs in the atmosphere at the site decreased from 2014 to 2019, benefit from the predominant air pollution control policy in China and Japan. Common air pollutants including sulfur dioxide (SO2), nitrogen oxides (NOx), ozone, methane (CH4), and non-methane hydrocarbon (NMHC) were detected in low concentrations from 2016 to 2019, while ozone (O3) and particulate matter (PM2.5, PM with a diameter less than 2.5 μm) were present in high levels that exceeded the Japanese standards. Most air pollutants peaked in spring and showed evident diurnal variations in spring and summer. Conclusions: This is the first study to clarify the atmospheric behaviors of multiple air pollutants at a background site in Japan. Significant external air pollutant impact and unneglectable air pollution were demonstrated at KUWAMS, indicating the importance of studying atmospheric pollution at remote sites.

scholarly journals The Composition of Cigarette Smoke: A Catalogue of the Polycyclic Aromatic Hydrocarbons

2006 ◽  
Vol 22 (1) ◽  
pp. 13-69 ◽  
Author(s):  
A Rodgman ◽  
TA Perfetti
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Cigarette Smoke ◽  
Aromatic Hydrocarbons ◽  
Tobacco Smoke ◽  
Air Pollutants ◽  
Consumer Product ◽  
Laboratory Animals ◽  
Polycyclic Aromatic ◽  
The Relationship

AbstractClassified as toxicants in many of the substances to which humans are exposed are the polycyclic aromatic hydrocarbons (PAHs). Such exposures include air pollutants from a variety of sources, foodstuffs and beverages, and tobacco smoke. Since the early 1950s, the composition of the latter has been more completely defined than that of any other consumer product. Nearly 4800 components have been identified in tobacco smoke and among these are over 500 PAHs either completely or partially identified. Because of the tumorigenicity of many PAHs, much research has been conducted in attempts to define the relationship between the PAH structures and their specific tumorigenicities in laboratory animals. None of the theories to date completely answers all the questions.As a prelude to an attempt to develop a more reasonable PAH structure-tumorigenicity relationship, the PAHs completely or partially identified in cigarette smoke have been catalogued. In the catalogue, they are categorized as bicyclic, tricyclic, tetracyclic, etc. with each group subdivided into all-benzenoid PAHs and cyclopentanoid-benzenoid PAHs. Another tabulation includes the PAHs considered in several previous studies on structure-tumorigenicity relationships, studies that dealt primarily with all-benzenoid PAHs.

scholarly journals A novel method for source-specific hemoglobin adducts of nitro-polycyclic aromatic hydrocarbons

2018 ◽  
Vol 20 (5) ◽  
pp. 780-789 ◽  
Author(s):  
Kylie Wheelock ◽  
Junfeng (Jim) Zhang ◽  
Rob McConnell ◽  
Deliang Tang ◽  
Heather E. Volk ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Air Pollutants ◽  
Hemoglobin Adducts ◽  
Polycyclic Aromatic ◽  
Novel Method ◽  
Growth Development ◽  
Negative Impacts ◽  
And Behavior

Polycyclic aromatic hydrocarbons (PAH) are ubiquitous air pollutants associated with negative impacts on growth, development and behavior in children.

scholarly journals Atmospheric Behaviour of Polycyclic and Nitro-Polycyclic Aromatic Hydrocarbons and Water-Soluble Inorganic Ions in Winter in Kirishima, a Typical Japanese Commercial City

2021 ◽  
Vol 18 (2) ◽  
pp. 688
Author(s):  
Lu Yang ◽  
Quanyu Zhou ◽  
Hao Zhang ◽  
Xuan Zhang ◽  
Wanli Xing ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Volcanic Eruption ◽  
Air Pollutants ◽  
Inorganic Ions ◽  
Water Soluble ◽  
Future Research ◽  
Emission Sources ◽  
Polycyclic Aromatic ◽  
Water Soluble Inorganic Ions

Kirishima is a typical Japanese commercial city, famous for frequent volcanic activity. This is the first study to determine the characteristics of PM2.5-bound polycyclic and nitro-polycyclic aromatic hydrocarbons (PAHs and NPAHs) and water-soluble inorganic ions (WSIIs) in this city. In this study, the non-volcanic eruption period was taken as the target and daily PM2.5 samples were collected from 24 November to 21 December 2016. The daily concentrations in PM2.5 of ƩPAHs, ƩNPAHs, and ƩWSIIs ranged from 0.36 to 2.90 ng/m3, 2.12 to 22.3 pg/m3, and 1.96 to 11.4 μg/m3, respectively. Through the results of the diagnostic ratio analyses of the PAHs, NPAHs, and WSIIs and the backward trajectory analysis of the air masses arriving in Kirishima, the emission sources of PAHs, NPAHs, and WSIIs in PM2.5 in Kirishima were influenced by the coal burning that came from the East Asian continent, although there was no influence from volcanic emission sources during the sampling period. The total benzo[a]pyrene (BaP)-equivalent concentration was lower than many other cities but the health risks in Kirishima were nonetheless notable. These findings are very important for future research on PM samples during the inactive Asian monsoon and volcanic eruption periods, to further understand the characteristics of air pollutants in Kirishima, and to contribute to the improvement in health of residents and a reduction in the atmospheric circulation of air pollutants in East Asia.

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