Seasonal Distribution of Pm2.5-Bound Polycyclic Aromatic Hydrocarbons as a Critical Indicator of Air Quality and Health Impact in a Coastal-Urban Region of Poland

2021 ◽  
Author(s):  
Patrycja Siudek
2021 ◽  
Author(s):  
Bamidele S. Fakinle ◽  
Ebenezer Leke Odekanle ◽  
Ike-Ojukwu Chika ◽  
Omowonuola Olubukola Sonibare ◽  
Olayomi Abiodun Falowo ◽  
...  

2021 ◽  
Author(s):  
Igor Burstyn ◽  
Geoffrey H. Donovan ◽  
Yvonne L. Michael ◽  
Sarah Jovan

Polycyclic aromatic hydrocarbons (PAHs) are a component of air pollutants that are costly to measure using traditional air-quality monitoring methods. We used an epiphytic bio-indicator (moss genus: Orthotrichum) to cost-effectively evaluate atmospheric deposition of PAHs in Portland, Oregon in May 2013. However, it is unclear if measurements derived from these bioindicators are good proxies for human exposure. To address this question, we simultaneously, measured PAH-DNA adducts in blood samples of non-smokers residing close to the sites of moss measurements. We accounted for individual determinants of PAH uptake that are not related to environmental air quality through questionnaires, e.g., wood fires, consumption of barbecued and fried meats. Correlation and linear regression (to control for confounders from the lifestyle factors) evaluated the associations. We did not observe evidence of an association between PAH levels in moss and PAH-DNA adducts in blood of nearby residents, but higher level of adduct were evident in those who used wood fire in their houses in the last 48 hours. It remains to be determined whether bio-indicators in moss can be used for human health risk assessment.


2014 ◽  
Vol 1065-1069 ◽  
pp. 3055-3058
Author(s):  
Jian Zhao ◽  
Jing Lan Hong ◽  
Chun Yuan Ma ◽  
Qing Song Wang

In the present study, polycyclic aromatic hydrocarbons (PAHs) toxicity of lignite burning was investigated. Results showed the emissions of benzo [a] pyrene, benzo [a] anthracene, Fluoranthene, and dibenz [ah] anthracene were the dominant substances contributing to the PAHs potential human toxicity impact. By contrast, the substances of Naphthalene, Acenaphthene, Acenaphthylene had the most important contributing to the overall PAHs emissions. These results indicate that high PAHs emissions are not necessarily results to high health impact. The health toxicity generated from lignite burning are significantly affected by the air input volume and the diameter of used lignite. The lowest PAHs emissions and highest health impact caused by PAHs were observed when air input is 2 m3/kg-lignite and 2.5m3/kg-lignite, respectively. In addition, an increasing tendency of PAHs toxicity with an increase in diameter of lignite for both emission and impact were observed.


2011 ◽  
Vol 11 (4) ◽  
pp. 11579-11610
Author(s):  
L. Poulain ◽  
Y. Iinuma ◽  
K. Müller ◽  
W. Birmili ◽  
K. Weinhold ◽  
...  

Abstract. Residential wood burning is becoming an increasingly important cause of air quality problems since it has become a popular source of alternative energy to fossil fuel. In order to characterize the contribution of residential wood burning to local particle pollution a field campaign was organized at the village of Seiffen (Saxony, Germany). During this campaign, an Aerosol Mass Spectrometer (AMS) was deployed in parallel to a PM1 high volume filter sampler. The AMS mass spectra were analyzed using Positive Matrix Factorization (PMF) to obtain detailed information about the organic aerosol (OA). Biomass-burning organic aerosol (BBOA), Hydrocarbon-like organic aerosol (HOA), Low-volatility oxygenated organic aerosol (LV-OOA) and Semi-volatile oxygenated organic aerosol (SV-OOA) were identified. Additionally, Polycyclic Aromatic Hydrocarbons (PAH) were measured by the AMS and short term events of extremely high PAH concentration compared to the mean PAH value were observed during the whole measurement period. A comparison with the results from PM1 filter samples showed that the BBOA factor and the AMS PAH are good indicators of the total concentration of the different monosaccharide anhydrides and PAH measured on the filter samples. Based on its correlation with CO and the low car traffic, the HOA factor was considered to be related to residential heating using liquid fuel. A clear impact of the week and weekend days on the diurnal profiles of the different OA components was observed. The weekdays were characterized by two maxima; a first one early in the morning and a stronger one in the evening; during the weekend days, the different OA components principally reached one maxima early in the afternoon. Finally, the PAH emitted directly from residential wood combustion was estimated to represent 1.5% of the total mass of BBOA factor and around 62% of the total PAH concentration measured at Seiffen. This result highlights the important contribution of residential wood combustion to air quality and PAH emissions at the sampling place which might have a significant impact on human health. Moreover, it also emphasizes the need for a better time resolution of the chemical characterization of toxic particulate compounds in order to provide more information about variations of the different sources through the days as well as to better estimate the real human exposure.


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