Source Apportionment of PM2.5 Particle Composition and Submicrometer Size Distribution during an Asian Dust Storm and Non-Dust Storm in Taipei

Liang, Ching-Ping; Yu, Tao; Chang, Yuan-Yi; Syu, Jin-Yuan; Lin, Wen-Yinn

doi:10.4209/aaqr.2012.06.0161

Cited by 35 publications

(16 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Beside the atmospheric variation, aerosols have some hazardous effect on human health, their ecosystems and other living organisms (Han et al, 2006;Begum et al, 2007;Brook et al, 2010;Liang et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Particulate Matter and Its Source Apportionment in Peshawar, Northern Pakistan

Alam

Rahman

Khan

et al. 2015

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

The present work is undertaken to investigate the aerosol volume and mass size distribution, concentration of Particulate Matter (PM) and its source apportionment by using GRIMM spectrometer data in the city of Peshawar, Northern Pakistan. In Peshawar, the concentration of Particulate matter (PM 2.5 and PM 10 ) was noticed to increase day by day due to rapid urbanization and industrialization. The use of several transportation activities, construction of buildings, roads and overhead bridges has badly affected the atmosphere of this region. Positive Matrix Factorization (PMF) Model has been used to find out different sources of PM in Peshawar. The data were collected for twenty days in April 2011 for both morning and afternoon periods. It has been observed that the values of aerosol volume size distribution were almost high during morning and afternoon rush hours. The mean concentrations of PM 10 and PM 2.5 were determined to be 480 µg/m 3 and 172 µg/m 3 , respectively. A reasonably significant correlation (R 2 = 0.65) was also found between observed and expected PM mass. The PMF result revealed five (05) sources in Peshawar, which were re-suspended road/soil dust, vehicular, industrial, brick kiln emission and household combustion emission.

show abstract

Section: Introductionmentioning

confidence: 99%

Particulate Matter and Its Source Apportionment in Peshawar, Northern Pakistan

Alam

Rahman

Khan

et al. 2015

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

show abstract

“…The second component (PC2) explained 24% of the variation and consisted of PM2.5, SO4 2-, NO3 -, OC, as well as highly dense mineral components and pollutions such as sulfate and nitrate. These components mainly came from Chinese factories [28]. The main component in the ADSs of 2002 in Taiwan was sulfate, as ADSs do no only carry dust but also combustion by-products [29].…”

Section: Discussionmentioning

confidence: 99%

The Effects of PM<sub>2.5</sub> from Asian Dust Storms on Emergency Room Visits for Cardiovascular and Respiratory Diseases

Liu¹,

Liao²,

Kuo³

2017

Preprint

View full text Add to dashboard Cite

Abstract:A case-crossover study examined how PM2.5 from Asian Dust Storms (ADS) affects the number of emergency room (ER) admissions for cardiovascular diseases (CVDs) and respiratory diseases (RDs). Our data indicated that PM2.5 concentration from ADS was highly correlated with ER visits for CVDs and RDs. The odds ratios (OR) increased by 2.92 (95% CI: 1.22-5.08) and 1.86 (95% CI: 1.30-2.91) per increase 10 µg/m 3 in PM2.5 levels, for CVDs and RDs, respectively. A 10 µg/m 3 increase in PM2.5 from ADSs was significantly associated with increase in ER visits for CVDs among those 65 years of age and older (an increase of 2.77 in OR) and for females (an increase of 3.09 in OR). In contrast, PM2.5 levels had a significant impact on RD ER visits among those under 65 years of age (OR=1.77). The risk of ER visits for CVDs increased on the day when the ADS occurred in Taiwan and the day after (lag 0 and lag 1); the corresponding risk increase for RDs only increased on the fifth day after the ADS (lag 5). In Taiwan's late winter and spring, the severity of ER visits for CVDs and RDs increases. Environmental protection agencies should employ an early warning system for ADS to reduce high-risk groups' exposure to PM2.5.

show abstract

“…The results estimated the light scattering by using fine and coarse particle mass concentration. (Chow and Watson, 2002;Liang et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Aerosol Extinction Coefficient in Taipei Metropolitan Atmosphere

Cheng

Liang

Syu

et al. 2015

Aerosol Air Qual. Res.

Self Cite

View full text Add to dashboard Cite

The object of this study investigated the correlation of visibility with aerosol physical properties in the urban atmosphere. The field experiments were conducted in four seasons from August 2010 to March 2011 in National Taipei University of Technology (NTUT), located in the downtown of Taipei city. Integrating nephelometer was used to measure the aerosol optical properties and compared with the calculated values based upon the measurements of aerosol concentration and size distribution. The characterization of visibility was influenced by aerosol concentrations and relative humidity. When the relative humidity was above 70%, the particles usually grew into larger size range and changed their optical characteristics. The results showed that the surface area concentration had a great relationship with extinction coefficient, especially for PM 2.5 . The correlation between particle number or volume concentration and extinction coefficient was complicated. Hence, visibility could be estimated by particle surface area concentration. The conclusions suggested that particle surface area concentration obtained from number concentration combined with size distribution could be used to estimate visibility.

show abstract

Source Apportionment of PM2.5 Particle Composition and Submicrometer Size Distribution during an Asian Dust Storm and Non-Dust Storm in Taipei

Cited by 35 publications

References 60 publications

Particulate Matter and Its Source Apportionment in Peshawar, Northern Pakistan

Particulate Matter and Its Source Apportionment in Peshawar, Northern Pakistan

The Effects of PM<sub>2.5</sub> from Asian Dust Storms on Emergency Room Visits for Cardiovascular and Respiratory Diseases

Characteristics of Aerosol Extinction Coefficient in Taipei Metropolitan Atmosphere

Contact Info

Product

Resources

About