Characteristics of Ambient Particle-bound Polycyclic Aromatic Hydrocarbons in the Angkor Monument Area of Cambodia

Furuuchi, Masami; Murase, Takahiro; Tsukawaki, Shinji; Hang, Peou; Sieng, Sotham; Hata, Mitsuhiko

doi:10.4209/aaqr.2007.01.0001

Cited by 17 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Most PAH are carcinogenic and mutagenic to human and causes serious damage to human health. Although PAHs in ambient air have been studied for a long time in other cities (Jones et al, 1989;Furuuchi et al, 2007;Wang et al, 2007;Tekasakul et al, 2008), few studies had been conducted in Tianjin city which is an important industrial city in China and about 30 millions tons of coal and petroleum were consumed annually. It was found that TSP bound PAHs mainly came from coal combustion in Tianjin in winter .…”

Section: Introductionmentioning

confidence: 99%

Characterization and Source Identification of PM10-bound Polycyclic Aromatic Hydrocarbons in Urban Air of Tianjin, China

Shi

Peng²,

et al. 2010

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

Spatial variations were predominantly due to the different strengths of source emission. The total PAHs concentrations at Dongli Monitoring Station (DL) site and Beichen Science and Technology Park (BC) site were higher than those at other four sites in heating period, while those at Meijiang community (MJ) site and Beichen Science and Technology Park (BC) site were higher in no-heating period. Higher PAHs concentrations during heating period and lower concentrations during no-heating period were observed at the six sampling sites, which may be caused by the stronger emissions from stationary combustion sources in heating period and the quicker air dispersion, washout effects, photodegradation and higher percentage in the air in vapor phase in no-heating period. The PAHs concentrations in gaseous phase were predicted with gas/particle partition model, and the BaP and BaP equivalency results indicated that the health risk of gas and particle phase PAHs to human in Tianjin were higher than that in other cities. The contributions from potential sources to PAHs in PM 10 were estimated by the diagnostic ratios between PAHs and principal component analysis (PCA). In whole sampling period, coal combustion was found to the predominant contributor of PM 10 -bound PAHs, followed by vehicles emission and wood combustion.

show abstract

Section: Introductionmentioning

confidence: 99%

Characterization and Source Identification of PM10-bound Polycyclic Aromatic Hydrocarbons in Urban Air of Tianjin, China

Shi

Peng²,

et al. 2010

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

show abstract

“…Moreover, the rapid development of economics in Cambodia increases air pollution from urbanization, industrialization, and transportation [10]. Only a few studies deal with evaluations of PM and air quality status in Cambodia [11,12]. To our knowledge, information concerning the carbonaceous components of ambient PMs, either fine or ultrafine particles in Cambodia, has not been previously collected and evaluated.…”

Section: Introductionmentioning

confidence: 99%

Ten Years Behavior of Carbonaceous Ultrafine Particulate Matter (PM_0.1) in Phnom Penh, Cambodia

Phairuang,

Hata,

Takao

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

Self Cite

View full text Add to dashboard Cite

The long-term behavior of mass concentration of ambient ultrafine particulate matter was discussed on samples collected at a site located in Phnom Penh City, Cambodia, between 2011-2020. A cascade air sampler that can collect PM0.1 (<0.1 μm) has been used at a site located on a roof floor of a 5-story building on the campus of the Institute of Technology of Cambodia (ITC) located near the central part of Phnom Penh City. The main goal was to investigate PM0.1 and carbon compositions, including elemental carbon (EC) and organic carbon (OC). As a result, PM0.1 increased by about 2.3 times, and PM0.1 remarkably increased in the past ten years. EC and soot-EC, which are considered to be road traffic sources, also increase PM0.1 mass concentration. Soot-EC and the number of vehicles per year are correlated. Biomass burning indicators such as OC, char-EC, and hot spots number increase at the same time. Consequently, it is considered that the dry season (January to March) is greatly affected by open fires in Cambodia and neighboring countries.

show abstract

“…Air pollutants from biomass burning are of great importance in underdeveloped and developing countries because biomass fuel is a major energy source. In Cambodia, more than 90% of the fuel for household use is wood (National Institute of Statistics, 2006) and emissions from wood and bush burning have been shown to be substantial contributors to ambient PAH concentration (Furuuchi et al, 2006a(Furuuchi et al, , 2006b(Furuuchi et al, , 2006cMurase et al, 2006). In Thailand, the production of ribbed smoke sheet rubber (RSS) is an important industry which consumes large amounts of biomass fuels to dry wet rubber sheets in smoking rooms.…”

Section: Introductionmentioning

confidence: 99%

Application of Soft X-rays in the Decomposition of Polycyclic Aromatic Hydrocarbons (PAHs) in Smoke Particles from Biomass Fuel Burning

Bai

Furuuchi

Tekasakul

et al. 2007

Aerosol Air Qual. Res.

Self Cite

View full text Add to dashboard Cite

Soft X-rays with a wave length of 1.3 × 10 -4 -4.1 × 10 -4 μm were tested for use in studying the decomposition of polycyclic aromatic hydrocarbons (PAHs), widespread hazardous and carcinogenic pollutants that are emitted during biomass burning. Both size-fractionated and -unfractionated smoke particles, after irradiation by the soft X-rays, were collected on quartz-fiber filters using two different residence times through the irradiating zone to determine the effect of the soft X-ray irradiation on particle-bound PAH concentration. Smoke particles produced by rubberwood burning had a single modal size distribution consisting of fine particles less than 2 m and a large mass fraction of PAHs in particles that were about 5 times higher than the urban ambient particles. The PAHs in the rubberwood smoke were decomposed by soft X-ray irradiation up to about 30%, essentially independent of the duration of the irradiation (0.022-0.067 sec) and with a slight dependence on the boiling temperature of each PAH composition. From the irradiation test for the size fractionated particles, PAHs in finer fraction particles were found to be decomposed more effectively. Soft X-rays have the potential for use as an effective device for pollution control.

show abstract

Characteristics of Ambient Particle-bound Polycyclic Aromatic Hydrocarbons in the Angkor Monument Area of Cambodia

Cited by 17 publications

References 5 publications

Characterization and Source Identification of PM10-bound Polycyclic Aromatic Hydrocarbons in Urban Air of Tianjin, China

Characterization and Source Identification of PM10-bound Polycyclic Aromatic Hydrocarbons in Urban Air of Tianjin, China

Ten Years Behavior of Carbonaceous Ultrafine Particulate Matter (PM_0.1) in Phnom Penh, Cambodia

Application of Soft X-rays in the Decomposition of Polycyclic Aromatic Hydrocarbons (PAHs) in Smoke Particles from Biomass Fuel Burning

Contact Info

Product

Resources

About

Characteristics of Ambient Particle-bound Polycyclic Aromatic Hydrocarbons in the Angkor Monument Area of Cambodia

Cited by 17 publications

References 5 publications

Characterization and Source Identification of PM10-bound Polycyclic Aromatic Hydrocarbons in Urban Air of Tianjin, China

Characterization and Source Identification of PM10-bound Polycyclic Aromatic Hydrocarbons in Urban Air of Tianjin, China

Ten Years Behavior of Carbonaceous Ultrafine Particulate Matter (PM0.1) in Phnom Penh, Cambodia

Application of Soft X-rays in the Decomposition of Polycyclic Aromatic Hydrocarbons (PAHs) in Smoke Particles from Biomass Fuel Burning

Contact Info

Product

Resources

About

Ten Years Behavior of Carbonaceous Ultrafine Particulate Matter (PM_0.1) in Phnom Penh, Cambodia