Algorithms to Develop H2 Filling Station Nets

2021 ◽  
Author(s):  
Alexey Bezrodniy ◽  
Alexander Rezchikov ◽  
Oleg Dranko
Keyword(s):  
Filling Station

Increased oxidative stress and plasma Hsp70 levels among gasoline filling station attendants

2016 ◽  
Vol 33 (2) ◽  
pp. 171-181 ◽  
Author(s):  
Bing Xia ◽  
Kangcheng Chen ◽  
Yingnan Lv ◽  
Damin Huang ◽  
Jing Liu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Stress Protein ◽  
Weighted Average ◽  
Exposed Group ◽  
Cumulative Exposure ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Gasoline Station ◽  
Filling Station ◽  
Exposed Workers

Objectives: Methylcyclopentadienyl manganese tricarbonyl (MMT) is an organic derivative of manganese (Mn) and is used as an antiknock agent and octane enhancer in gasoline. In this article, we tested the oxidative stress and heat stress protein (Hsp) 70 levels of gasoline station attendants to explore potential plasma biomarkers. Furthermore, the dose–response relationship was also identified. Methods: A total of 144 workers, including 96 petrol fillers and 48 cashiers, participated in the study. Ambient concentrations of benzene, toluene, ethylbenzene, and xylene (BTEX) and Mn were monitored at nine filling stations. During the measuring process, the individual cumulative exposure index was calculated. Plasma oxidative stress and Hsp70 levels were also analysed using enzyme-linked immunosorbent assay. Results: The BTEX time-weighted average in office areas was significantly lower than in refuelling areas ( p < 0.05). In refuelling areas, the content of Mn ranged from 6.44 μg/m3 to 127.34 μg/m3, which was much higher than that in office areas (3.16–7.22 μg/m3; p < 0.05). Exposed workers had significantly different plasma oxidative stress indicators compared with the control group, respectively: superoxide dismutase (SOD), 39.18 ± 6.05 U/mL versus 52.84 ± 3.87 U/mL; glutathione peroxidase (GSH-Px), 186.07 ± 15.63 U versus 194.38 ± 10.42 U; and malondialdehyde (MDA), 1.68 ± 0.52 nmol/L versus 1.43 ± 0.64 nmol/L (in all comparisons, p < 0.05). Plasma Hsp70 level in the exposed group (2.77 ± 0.64 ng/mL) was significantly higher than in the control group (2.32 ± 0.87 ng/mL; p < 0.05). Furthermore, Hsp70 levels were inversely correlated with the activities of SOD ( r = −0.305) and GSH-Px ( r = −0.302) in the exposed group ( p < 0.05). Moreover, a positive correlation ( r = 0.653) was found between plasma Hsp70 levels and plasma MDA levels ( p < 0.05). Conclusion: Exposure to MMT-containing gasoline may result in increasing reactive oxygen stress among filling station attendants. Plasma Hsp70 levels could be used as a sensitive responsive biomarker for exposed workers.

Design and Realization of CNG Intelligent Monitoring System

2013 ◽  
Vol 380-384 ◽  
pp. 761-764
Author(s):  
Zhen Hua Wang ◽  
Ge Fei Yu
Keyword(s):  
Monitoring System ◽  
Detection System ◽  
Short Message ◽  
Danger Signal ◽  
Intelligent Monitoring ◽  
Alarm Signal ◽  
Filling Station ◽  
Temperature Detection ◽  
Arm Microprocessor ◽  
Monitoring Information

One CNG remote intelligent monitoring system is designed and realized in this article. The monitoring system can receive real time monitoring information and monitor environment of CNG filling station by using GSM short message platform , terminal PC and cell phone based on ARM microprocessor, PTM100GSM module, pressure and temperature detection system, when the pressure, temperature or consistence of gas storage well is over the threshold , the monitoring system will send the alarm signal. Its proved that the monitoring system works stably and reliably and can effectively monitor fatal public danger signal.

Hydrogen filling station design for fuel cell vehicles

2010 ◽  
Author(s):  
Weiping Xiao ◽  
Yunzhi Cheng ◽  
Wei-Jen Lee ◽  
Victoria Chen ◽  
Surachai Charoensri
Keyword(s):  
Fuel Cell ◽  
Fuel Cell Vehicles ◽  
Filling Station

scholarly journals Study and Determination of Aryl Hydrocarbon Receptor with Some Trace Elements in Fuel Filling Station Workers

2020 ◽  
Vol 10 (4) ◽  
pp. 233-251
Author(s):  
Bassem Abd Al-Raheem Twaij ◽  
Dr. Muthana Salam Mashkour ◽  
Dr.Hussein Kadhem Al-Hakeim
Keyword(s):  
Trace Elements ◽  
Serum Concentration ◽  
Aryl Hydrocarbon Receptor ◽  
Negative Correlation ◽  
Aromatic Hydrocarbons ◽  
Significant Negative Correlation ◽  
Correlation Study ◽  
Control Group ◽  
Aryl Hydrocarbon ◽  
Filling Station

PollutiOn is the intrOduction Of contaminantsʹ intO the natural envirOnment that cause adverseʹ change. Gasoline is a toxic and highly flammable liquid consists of various types of aliphatic hydrocarbons, olefins, benzenes and aromatic hydrocarbons including toluene, xylene and a large number of volatile compounds in addition to tetraethyl lead. Gasoline consists of different types of aliphatic hydrocarbons, aryl compounds and some trace elements. Trace elements are several important roles in human bodies, some are essential for enzymes reactions where they attract and facilitate conversion of substrate molecules to specific end products. Aryl hydrocarbon receptor (AHR) is a receptor involved in the regulation of biological responses to planar aromatic hydrocarbons.       The aim of the present study is to compare the serum AHR level in the fuel station workers (FSW) with the non-workers as a control group. The other aim is to find out a possible correlation between AHR with trace elements.              Sixty male FSW and 30 controls, from ten fuel stations at Al-Najaf City-Iraq, were participated in the present study. The AHR level in serum was measured using ELISA technique. Determine the following metal ions Zn2+, Cu2+, Fe3+, Mg2+, Na+ and K+ level in filling station workers (FSW) and control group were measured spectrophotometrically by using ready for use kits. Serum Pb level was carried out using Atomic absorption spectroscopy.              The results serum concentration of AHR in FSW group revealed a significant increase (p<0.001) as compared with the control group. No significant difference was noticed in AHR as compered in exposure ≥12years with exposure <12years in FWS. Smoking has no significant correlation with other parameters. Correlation study indicated a correlation between AHR and Age. Serum concentration of Cu2+, Zn2+, K+ and Pb in FSW group revealed a significant increase (p<0.001) as compared with the control group. While Fe3+, Na+ and Mg2+ in FSW group revealed a significant decrease (p<0.001) as compared with the control group. Correlation study indicated a significant negative correlation between serum Pb and AHR while other trace elements showed no significant correlation with AHR in FSW group. There is a significant negative correlation between serum Cu2+ with age while there is significant increase correlation between Zn2+, Mg2+ and Pb with age in FWS group.                 Conclusion of study is The role of increase AHR on the health in FSW group, attention to use safety gloves and face mask is recommended for FSW and a long follow-up to the studied group is necessary to explore the    prognosis of increase AHR in FSW.  

Security Risk to Filling Station

2020 ◽  
pp. 257-264
Author(s):  
Katarína Mäkká ◽  
Katarína Kampová ◽  
Darina Stachová ◽  
Katarina Petrlova
Keyword(s):  
Security Risk ◽  
Filling Station

scholarly journals Environmental Assessment and Evaluation of Oxidative Stress and Genotoxicity Biomarkers Related to Chronic Occupational Exposure to Benzene

2019 ◽  
Vol 16 (12) ◽  
pp. 2240 ◽  
Author(s):  
Isabele C. Costa-Amaral ◽  
Leandro V. B. Carvalho ◽  
Marcus Vinicius C. Santos ◽  
Daniel Valente ◽  
Angélica C. Pereira ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Occupational Exposure ◽  
Chromosomal Abnormalities ◽  
Muconic Acid ◽  
Work Activities ◽  
Nuclear Abnormalities ◽  
Filling Station ◽  
Group I ◽  
Increased Risk ◽  
Group Ii

Environmental and occupational exposure to benzene from fuels is a major cause for concern for national and international authorities, as benzene is a known carcinogen in humans and there is no safe limit for exposure to carcinogens. The objective of this study was to evaluate the genotoxic effects of chronic occupational exposure to benzene among two groups of workers: filling station workers (Group I) and security guards working at vehicles entrances (Group II), both on the same busy highway in Rio de Janeiro, Brazil. Sociodemographic data on the workers were evaluated; the concentration of benzene/toluene (B/T) in atmospheric air and individual trans,trans-muconic acid (ttMA) and S-phenylmercapturic acid (S-PMA) were measured; oxidative stress was analyzed by catalase (CAT), glutathione S-transferase (GST), superoxide dismutase (SOD), thiol groups (THIOL) and malondialdehyde (MDA); genotoxicity was measured by metaphases with chromosomal abnormalities (MCA) and nuclear abnormalities, comet assay using the enzyme formamidopyrimidine DNA glycosylase (C-FPG), and methylation of repetitive element LINE-1, CDKN2B and KLF6 genes. Eighty-six workers participated: 51 from Group I and 35 from Group II. The B/T ratio was similar for both groups, but Group I had greater oscillation of benzene concentrations because of their work activities. No differences in ttMA and S-PMA, and no clinical changes were found between both groups, but linearity was observed between leukocyte count and ttMA; and 15% of workers had leukocyte counts less than 4.5 × 109 cells L−1, demanding close worker’s attention. No differences were observed between the two groups for THIOL, MDA, MCA, or nuclear abnormalities. A multiple linear relationship was obtained for the biomarkers MCA and C-FPG. A significant correlation was found between length of time in current job and the biomarkers C-FPG, MCA, GST, and MDA. Although both populations had chronic exposure to benzene, the filling station workers were exposed to higher concentrations of benzene during their work activities, indicating an increased risk of DNA damage.

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