Concentrations of polycyclic aromatic hydrocarbons in street dust from bus stops in Qingyang city: Estimates of lifetime cancer risk and sources of exposure for daily commuters in Northwest China

2020 ◽  
Vol 266 ◽  
pp. 115222
Author(s):  
Yongfu Wu ◽  
Ning Zhang ◽  
Yingqiang Wang ◽  
Yibin Ren ◽  
Zhongyu Yuan ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Cancer Risk ◽  
Aromatic Hydrocarbons ◽  
Northwest China ◽  
Street Dust ◽  
Lifetime Cancer Risk ◽  
Polycyclic Aromatic ◽  
Bus Stops

scholarly journals Classroom Dust-Bound Polycyclic Aromatic Hydrocarbons in Jeddah Primary Schools, Saudi Arabia: Level, Characteristics and Health Risk Assessment

2020 ◽  
Vol 17 (8) ◽  
pp. 2779
Author(s):  
Mansour A. Alghamdi ◽  
Salwa K. Hassan ◽  
Noura A. Alzahrani ◽  
Marwan Y. Al Sharif ◽  
Mamdouh I. Khoder
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Cancer Risk ◽  
Urban Schools ◽  
Health Risks ◽  
Aromatic Hydrocarbons ◽  
Primary Schools ◽  
Residential Schools ◽  
Suburban Schools ◽  
Lifetime Cancer Risk ◽  
Polycyclic Aromatic

Data concerning polycyclic aromatic hydrocarbons (PAHs) in Jeddah’s schools, Saudi Arabia, and their implications for health risks to children, is scarce. Classroom air conditioner filter dusts were collected from primary schools in urban, suburban and residential areas of Jeddah. This study aimed to assess the characteristics of classroom-dust-bound PAHs and the health risks to children of PAH exposure. Average PAH concentrations were higher in urban schools than suburban and residential schools. Benzo (b)fluoranthene (BbF), benzo(ghi)perylene (BGP), chrysene (CRY) and Dibenz[a,h]anthracene (DBA) at urban and suburban schools and BbF, BGP, fluoranthene (FLT) and indeno (1, 2, 3, −cd)pyrene (IND) at residential schools were the dominant compounds in classroom dust. PAHs with five aromatic rings were the most abundant at all schools. The relative contribution of the individual PAH compounds to total PAH concentrations in the classroom dusts of schools indicate that the study areas do share a common source, vehicle emissions. Based on diagnostic ratios of PAHs, they are emitted from local pyrogenic sources, and traffic is the significant PAH source, with more significant contributions from gasoline-fueled than from diesel cars. Based on benzo[a]pyrene equivalent (BaPequi) calculations, total carcinogenic activity (TCA) for total PAHs represent 21.59% (urban schools), 20.99% (suburban schools), and 18.88% (residential schools) of total PAH concentrations. DBA and BaP were the most dominant compounds contributing to the TCA, suggesting the importance of BaP and DBA as surrogate compounds for PAHs in this schools. Based on incremental lifetime cancer risk (ILCingestion, ILCRinhalation, ILCRdermal) and total lifetime cancer risk (TLCR)) calculations, the order of cancer risk was: urban schools > suburban schools > residential schools. Both ingestion and dermal contact are major contributors to cancer risk. Among PAHs, DBA, BaP, BbF, benzo(a)anthracene (BaA), benzo(k)fluoranthene (BkF), and IND have the highest ILCR values at all schools. LCR and TLCR values at all schools were lower than 10−6, indicating virtual safety. DBA, BaP and BbF were the predominant contributors to cancer effects in all schools.

scholarly journals Occurrence and Ecological and Human Health Risk Assessment of Polycyclic Aromatic Hydrocarbons in Soils from Wuhan, Central China

2018 ◽  
Vol 15 (12) ◽  
pp. 2751 ◽  
Author(s):  
Tekleweini Gereslassie ◽  
Ababo Workineh ◽  
Xiaoning Liu ◽  
Xue Yan ◽  
Jun Wang
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Cancer Risk ◽  
Aromatic Hydrocarbons ◽  
Solid Phase ◽  
Human Health Risk ◽  
Environmental Pollutants ◽  
Soil Samples ◽  
Central China ◽  
Lifetime Cancer Risk ◽  
Polycyclic Aromatic

Polycyclic aromatic hydrocarbons are large groups of ubiquitous environmental pollutants composed of two or more fused aromatic rings. This study was designed to evaluate the distribution, potential sources, and ecological and cancer risks of eleven polycyclic aromatic hydrocarbons from Huangpi soils in Wuhan, central China. The soil samples for this study were taken from 0–10 cm and 10–20 cm soil depths. A modified matrix solid-phase dispersion extraction method was applied to extract analytes from the soil samples. A gas chromatograph equipped with a flame ionization detector was used to determine the concentrations of the compounds. The sum mean concentrations of the polycyclic aromatic hydrocarbons were 138.93 and 154.99 µg kg−1 in the 0–10 cm and 10–20 cm soil depths, respectively. Benzo[a]pyrene and fluorene were the most abundant compounds in the 0–10 cm and 10–20 cm soil depths, respectively. The quantitative values of the pyrogenic index, total index, and diagnostic ratio used in this study showed that the polycyclic aromatic hydrocarbons have a pyrogenic origin. The negligible and maximum permissible concentrations values for naphthalene, acenaphthylene, acenaphthene, phenanthrene, anthracene, pyrene, benz[a]anthracene, and benzo[a]pyrene indicated a moderate ecological risk. The incremental lifetime cancer risk values for adults and children showed a low and moderate cancer risk, respectively.

Polycyclic aromatic hydrocarbons (PAHs) in street dust of Rio de Janeiro and Niterói, Brazil: Particle size distribution, sources and cancer risk assessment

2017 ◽  
Vol 599-600 ◽  
pp. 305-313 ◽  
Author(s):  
Caroline Fernandes Jaegger Franco ◽  
Michele Fabri de Resende ◽  
Leonardo de Almeida Furtado ◽  
Taila Figueredo Brasil ◽  
Marcos N. Eberlin ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Particle Size ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Cancer Risk ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Aromatic Hydrocarbons ◽  
Street Dust ◽  
Cancer Risk Assessment ◽  
Polycyclic Aromatic

scholarly journals Street Dust—Bound Polycyclic Aromatic Hydrocarbons in a Saudi Coastal City: Status, Profile, Sources, and Human Health Risk Assessment

2018 ◽  
Vol 15 (11) ◽  
pp. 2397 ◽  
Author(s):  
Ibrahim Shabbaj ◽  
Mansour Alghamdi ◽  
Mamdouh Khoder
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Cancer Risk ◽  
Human Health ◽  
Aromatic Hydrocarbons ◽  
Human Health Risk ◽  
Street Dust ◽  
Average Concentration ◽  
Total Pahs ◽  
Coastal City ◽  
Polycyclic Aromatic

Polycyclic aromatic hydrocarbons (PAHs) in street dust pose a serious problem threatening both the environment and human health. Street dust samples were collected from five different land use patterns (traffic areas TRA, urban area URA, residential areas REA, mixed residential commercial areas MCRA and suburban areas SUA) in Jeddah, a Saudi coastal city, and one in in Hada Al Sham, a rural area (RUA). This study aimed to investigate the status, profile, sources of PAHs and estimate their human health risk. The results revealed an average concentration of total PAHs of 3320 ng/g in street dust of Jeddah and 223 ng/g in RUA dust. PAHs with high molecular weight represented 83.38% of total PAHs in street dust of Jeddah, while the carcinogenic PAH compounds accounted 57.84%. The highest average concentration of total PAHs in street dust of Jeddah was found in TRA (4980 ng/g) and the lowest in REA (1660 ng/g). PAHs ratios indicated that the principal source of PAHs in street dust of Jeddah is pyrogenic, mainly traffic emission. Benzo(a)anthracene/chrysene (BaA/CHR) ratio suggests that PAHs in street dusts of Jeddah come mainly from emission of local sources, while PAHs in RUA might be transported from the surrounding urban areas. The estimated Incremental Lifetime Cancer Risk (ILCR) associated with exposure to PAHs in street dusts indicated that both dermal contact and ingestion pathways are major contributed to cancer risk for both children and adults. Based on BaPequivalence concentrations of total PAHs, ILCRIngestion, ILCRdermal and cancer risk values for children and adults exposed to PAHs in street dust of different areas in Jeddah were found between 10−6 and 10−4, indicating potential risk. The sequence of cancer risk was TRA > URA > MCRA > SUA > REA. Only exposure to BaP and DBA compounds had potential risk for both children and adults.

scholarly journals Polycyclic Aromatic Hydrocarbons in Costal Sediments and Indian Halibuts of Asaluyeh, Kangan, Khark, Emam Hasan and Bushehr Coasts, Iran: Distribution Pattern and Health Risk Assessment

2021 ◽  
Author(s):  
Ghafour Nourian ◽  
Neamat Haghighi ◽  
Tayebeh Tabatabaei ◽  
Esmaeil Kohgardi ◽  
Abdul Pazira
Keyword(s):  
Risk Assessment ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Cancer Risk ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Aromatic Hydrocarbons ◽  
Lifetime Cancer Risk ◽  
Ring Compounds ◽  
Excess Cancer Risk ◽  
Polycyclic Aromatic

Abstract A total 20 sediment and 20 Indian halibut samples were sampled from Asaluyeh, Kangan, Khark, Emam Hasan and Bushehr coast, Bushehr province, Iran for studying distribution and health risk assessment of polycyclic aromatic hydrocarbons (PAHs). PAHs were analyzed using HPLC. The mean ƩPAHs concentrations in sediment and Indian halibut samples were 6.894 ± 1.4301 and 14.807 ± 7.486 mg/kg, respectively. There was a significant positive relationship (P < 0.05) between ƩPAHs, 2–3 ring compounds, and 4 ring compounds in the sediments and Indian halibut samples. ƩPAHs concentration in sediments and Indian halibuts was higher in Asaluyeh area followed by Khark area. The values of PAHs pollution in the Bushehr province coastline were low to very high. The toxic equivalent quotient (TEQ), excess cancer risk (ECR), and the incremental lifetime cancer risk (ILCR) were applied for health risk assessment. Based on TEQ calculation, DA was a good marker in assessing PAHs related to health risk. DDI values for ∑PAHs and ∑CPAHs (carcinogenic PAHs) were also highest in Asaluyeh and Kangan, respectively. ILCR values for sediments in 10% of all stations and cumulative ECR values for Indian halibuts in all studied areas exceeded the USEPA acceptable level thus suggesting a potential cancer risk. Thus, regular monitoring of PAHs pollutants in the coastlines of Bushehr province is recommended.

Sign in / Sign up

Export Citation Format

Share Document