Ambient levels of volatile organic compounds in the vicinity of petrochemical industrial area of Yokohama, Japan

Tiwari, Vasu; Hanai, Yoshimichi; Masunaga, Shigeki

doi:10.1007/s11869-009-0052-0

Cited by 169 publications

(108 citation statements)

References 42 publications

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“…It can be noticed from these figures that, the mean concentrations of total VOCs were varied seasonally as the highest VOCs levels were measured in winter and autumn while the lowest value was recorded in summer almost at all sites under investigation. This is in agreement with other studies (23,(30)(31)(32)(33)(34) . The highest VOCs levels during the winter season may be attributed to an increase in the emission of VOCs, due to the use of fuel during cold season, beside higher atmospheric stability, which lead to increase the accumulation of VOCs in the atmosphere during winter, in addition to lower temperature, lower solar radiation and lower photochemical reactions during that season.…”

Section: Table 3 Comparison Between Annual Mean Concentration Of Indsupporting

confidence: 94%

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VOCs Levels in Indoor and Outdoor Residential Homes in Helwan, Egypt

2015

Egypt. J. Chem.

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Section: Table 3 Comparison Between Annual Mean Concentration Of Indsupporting

confidence: 94%

“…VOCs concentration ratios have been taken as an indicator to compare the BTEX emission sources (34,36,37) . Because of the varying reaction rates of VOCs with hydroxyl radical ( OH.…”

Section: Btex Concentration Ratiomentioning

confidence: 99%

VOCs Levels in Indoor and Outdoor Residential Homes in Helwan, Egypt

2015

Egypt. J. Chem.

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“…During the day, the number of highly reactive species is lower compared to the low reactive VOC species, due to photochemical reactions. On the other hand, the low reactive VOC species are more abundant due to accumulation [19].…”

Section: Volatile Organic Compoundsmentioning

confidence: 99%

“…n-Butane resulting from gasoline evaporative emissions and was found to be 3.5-6 ppb, while consumer products and petrochemical refining were the sources of isobutene in addition to gasoline evaporation. Propane was generated from the usage of LPG and natural gas processing [19]. Aromatic VOCs, mainly BTEX was also present in large amounts.…”

Section: Volatile Organic Compoundsmentioning

confidence: 99%

Air Quality Impacts of Petroleum Refining and Petrochemical Industries

Ragothaman

Anderson

2017

Environments

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Though refineries and petrochemical industries meet society's energy demands and produce a range of useful chemicals, they can also affect air quality. The World Health Organization (WHO) has identified polluted air as the single largest environmental risk, and hence it is necessary to strive for and maintain good air quality. To manage potential health impacts, it is important to implement proper air quality management by understanding the link between specific pollutant sources and resulting population exposures. These industries release pollutants such as Volatile Organic Compounds, greenhouse gases and particulate matter, from various parts of their operations. Air quality should be monitored and controlled more meticulously in developing nations where increased energy demands, industrialization and overpopulation has led to more emissions and lower air quality. This paper presents a review of findings and highlights from various studies on air quality impacts of petroleum refining and petrochemical plants in many regions in the world.

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“…Comparing the lifetime of toluene and benzene in air it was estimated at 2 and 12.5 days, respectively, while xylenes were only 7.8 h [12]. The photo-oxidation reactions in the air occur at different rates: benzene reacts more slowly with OH radicals, while toluene/m-xylene reacts 5 times and 19 times as fast as benzene, respectively [13].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Air Pollution, by the Urban Traffic, in University Campus of Bucharest

Popescu¹,

Popescu²

2017

JEP

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This study aims to measure traffic-related air pollution of vehicles with internal combustion, the main source of emissions of BTEX, organic compounds and NO x , NO 2 , NO, O 3 , CO, SO 2 , PM 10 and PM 2.5 , inorganic compounds, in three sites of the University campus, surrounded by residential areas. According to the University data, around 8000 students are being exposed daily to the measured level of pollution, in all 3 studied places of campus. A mobile laboratory was used, which continuously measures above mentioned pollutants and meteorological parameters. The diurnal variation of BTEX, in a sunny and rainy day showed two peaks of BTEX concentration in the morning and evening. In the rainy days, the non-polar (hydrophobic) compounds as BTEX are mechanically trained by rain into the ground, where either they enter into the groundwater, or volatilized and re-enter in the air. Particulate matter such as PM 10 and PM 2.5 is, in a large part, carried by the rain into the soil. The polar compounds (hydrophilic, NO x , SO 2 ) dissolves in the rainwater and are absorbed in the soil (increasing soil acidity) and evaporated towards the clouds (leading to acid rain). In our study, BTEX compounds removed by the rain varied between 62% -75%, NO x and SO 2 , 80% and 77% respectively. Particulate matters were washed out up to 68% for PM 10 , and 42% for PM 2.5 . In the sunny days the air pollution with measured concentrations of O 3 (121.66 ± 7.02, 123.56 ± 4.89 µg/m 3

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Ambient levels of volatile organic compounds in the vicinity of petrochemical industrial area of Yokohama, Japan

Cited by 169 publications

References 42 publications

VOCs Levels in Indoor and Outdoor Residential Homes in Helwan, Egypt

VOCs Levels in Indoor and Outdoor Residential Homes in Helwan, Egypt

Air Quality Impacts of Petroleum Refining and Petrochemical Industries

Assessment of Air Pollution, by the Urban Traffic, in University Campus of Bucharest

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