Seasonal variation in concentration and metallic constituents of atmospheric particulates near the western coast of central Taiwan

2006 ◽  
Vol 22 (5) ◽  
pp. 193-201 ◽  
Author(s):  
Guor-Cheng Fang ◽  
Yuh-Shen Wu ◽  
Wen-Jhy Lee ◽  
Te-Yen Chou ◽  
I-Chen Lin
Keyword(s):  
Fine Particles ◽  
Western Coast ◽  
Metallic Elements ◽  
High Concentration ◽  
Fine Particulates ◽  
Atmospheric Particulates ◽  
Suspended Particulates ◽  
Total Suspended Particulates ◽  
Coarse Particulates ◽  
Central Taiwan

In addition to determining the concentration and metallic constituents of particulate matter at Taichung Harbor in central Taiwan, this study attempts to characterize the mass, metallic elements, composition and concentrations of total suspended particulates (TSP), fine particles and coarse particles. Statistical approaches, such as the Spearman tests, were also adopted to determine the seasonal variations of concentrations of these pollutants. Experimental results indicate that the mean TSP, fine particulate and coarse particulate concentrations in spring and winter are higher than in summer and autumn on the western coast of central Taiwan. Spearman statistical analysis of metallic elements Mn and Pb showed high concentration coefficients for fine and coarse particulates on the western coast of central Taiwan. The order of mean metallic concentrations in TSP, coarse particulates and fine particles was Fe-Zn-Mg-Cu-Cr-Mn-Pb in TSP, Fe-Cu-Zn-Mg-Mn-Pb-Cr in coarse particulates and Fe-Cu-Mg-Pb-Zn-Mn-Cr in fine particulates.

scholarly journals Apply Woods Model in the Predictions of Ambient Air Particles and Metallic Elements (Mn, Fe, Zn, Cr, and Cu) at Industrial, Suburban/Coastal, and Residential Sampling Sites

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Guor-Cheng Fang ◽  
Ci-Song Huang
Keyword(s):  
Particle Size ◽  
Dry Deposition ◽  
Thermal Power ◽  
Sampling Site ◽  
Ambient Air ◽  
Deposition Flux ◽  
Metallic Elements ◽  
Suspended Particulates ◽  
Total Suspended Particulates ◽  
Central Taiwan

The main purpose for this study was to monitor ambient air particles and metallic elements (Mn, Fe, Zn, Cr, and Cu) in total suspended particulates (TSPs) concentration, dry deposition at three characteristic sampling sites of central Taiwan. Additionally, the calculated/measured dry deposition flux ratios of ambient air particles and metallic elements were calculated with Woods models at these three characteristic sampling sites during years of 2009-2010. As for ambient air particles, the results indicated that the Woods model generated the most accurate dry deposition prediction results when particle size was 18 μm in this study. The results also indicated that the Woods model exhibited better dry deposition prediction performance when the particle size was greater than 10 μm for the ambient air metallic elements in this study. Finally, as for Quan-xing sampling site, the main sources were many industrial factories under process around these regions and were severely polluted areas. In addition, the highest average dry deposition for Mn, Fe, Zn, and Cu species occurred at Bei-shi sampling site, and the main sources were the nearby science park, fossil fuel combustion, and Taichung thermal power plant (TTPP). Additionally, as for He-mei sampling site, the main sources were subjected to traffic mobile emissions.

Water-sediment distribution and behaviour of Polonium (²¹⁰Po) in a shallow coastal area with high concentration of dissolved organic matters in water, North Vietnam

2016 ◽  
Vol 6 (2) ◽  
pp. 1-14
Author(s):  
Thi Van Tran ◽  
Duc Tam Nguyen ◽  
Duc Nhan Dang ◽  
Quang Long Nguyen ◽  
Van Thang Duong ◽  
...  
Keyword(s):  
Coastal Region ◽  
Dry Season ◽  
High Concentration ◽  
Sediment Distribution ◽  
Organic Matters ◽  
Suspended Particulates ◽  
Total Suspended Particulates ◽  
Dissolved Organic Matters ◽  
North Vietnam

The behaviour and water-sediment distribution of particle-reactive Polonium-210 in the marine environment with high concentration of total suspended particulates (TSP) and dissolved organic matters (DOC) along the coast of the Tonkin Gulf (North Vietnam) were investigated. It was revealed that the water-sediment distribution coefficient, Kd(s), of 210Po varied from 2.39x103 to 1.9x104 (L kg-1) and from 7x103to 2.5x105 (L kg-1), respectively, in the rainy and dry season. This implies that in the aquatic environment 210Po tends to be of high affinity to suspended particulates. The 210Po Kd(s) was positively correlated with salinity in both rainy and dry seasons. With DOC the Kd(s) was positively correlated in the rainy season, but in the dry season the relationship tended to be reverse. This behaviour of 210Po in the coastal region was explained by the variation of pH of seawater and by the complexation of the isotope with DOC. The Kd(s) found in this study was in an order lower compared to that reported by Malaysian researchers for the Thailand Gulf. The most important source of 210Po was suggested to be from in-situ generation by the decay of its grand-parent 210Pb which mainly derived from the atmospheric fall-out.  

Determination of phthalate esters in total suspended particulates in Central Taiwan

2019 ◽  
Vol 20 (4) ◽  
pp. 298-305
Author(s):  
Tse-Tsung Ho ◽  
Guor-Cheng Fang ◽  
Chao-Lang Kao ◽  
Yuan-Jie Zhuang ◽  
Gui-Ren Liang
Keyword(s):  
Phthalate Esters ◽  
Suspended Particulates ◽  
Total Suspended Particulates ◽  
Central Taiwan

Fine (PM 2.5 ), coarse (PM 2.5–10 ), and metallic elements of suspended particulates for incense burning at Tzu Yun Yen temple in central Taiwan

Chemosphere ◽  
2003 ◽  
Vol 51 (9) ◽  
pp. 983-991 ◽  
Author(s):  
Guor-Cheng Fang ◽  
Cheng-Nan Chang ◽  
Chia-Chium Chu ◽  
Yuh-Shen Wu ◽  
Peter Pi-Cheng Fu ◽  
...  
Keyword(s):  
Metallic Elements ◽  
Pm 2.5 ◽  
Suspended Particulates ◽  
Incense Burning ◽  
Central Taiwan

Atmospheric pollutants study of particles and metallic elements during high wind speed (wind speed >6 m/s) near Taiwan Strait around central Taiwan

2006 ◽  
Vol 22 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Yuh-Shen Wu ◽  
Guor-Cheng Fang ◽  
Jum-Bo Lin ◽  
Jhih-Guang Lin ◽  
Shih-Han Huang ◽  
...  
Keyword(s):  
Wind Speed ◽  
Correlation Coefficient ◽  
Fine Particles ◽  
Atmospheric Pollutants ◽  
Aerodynamic Diameter ◽  
High Wind ◽  
Metallic Elements ◽  
High Wind Speed ◽  
Particle Matter ◽  
Central Taiwan

The purpose of this study was to characterize metallic elements associated with atmospheric particulate matter in total suspended particulate (TSP), fine particles (particle matter with an aerodynamic diameter of B / 2.5 mm, PM2.5) and coarse particles (particle matter with an aerodynamic diameter of 2.5-10 mm, PM2.5- 10), at high wind speed (wind speed-6 m/s) at Taichung Harbor (TH) and Wuci traffic (WT) in central Taiwan from March to December 2004. The correlation coefficient (R2) between TSP, coarse, fine particulate concentrations versus wind speed at the TH and WT sampling site during high wind speed (-6 m/s) are shown in this study. In addition, the correlation coefficients between TSP, coarse and fine particles of metallic species versus high wind speed were also observed. The results indicated that the correlation coefficient order was TSP-coarse-fine for particles at both sampling sites during high wind speed (-6 m/s) near central Taiwan. In addition, the concentrations of Fe, Zn, Mn, Cu, Pb, Cr, Mg for TSP, coarse and fine particulates were also analysed in this study.

Ambient air metallic elements compositions study in total suspended particulates and dry depositions at Taichung Harbor

2015 ◽  
Vol 74 (5) ◽  
pp. 4163-4170 ◽  
Author(s):  
Guor-Cheng Fang ◽  
Winn-Jung Huang ◽  
Hung-Che Chiang ◽  
Yu-Cheng Chen ◽  
Yuan-Jie Zhuang
Keyword(s):  
Ambient Air ◽  
Metallic Elements ◽  
Suspended Particulates ◽  
Total Suspended Particulates

scholarly journals Characterization of Ambient Particulate Matters in an Industry-Intensive Area in Central Taiwan

Atmosphere ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 926
Author(s):  
Hsing-Wang Li ◽  
Kang-Shin Chen ◽  
Chia-Hsiang Lai ◽  
Ting-Yu Chen ◽  
Yi-Ching Lin ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Water Soluble ◽  
High Tech ◽  
Particulate Matters ◽  
Metallic Elements ◽  
Soluble Ions ◽  
Water Soluble Ions ◽  
Central Taiwan

Atmospheric particulate matters (PMs) were measured in an industry-intensive region in central Taiwan in order to investigate the characteristics and possible sources of PMs. The samplings were simultaneously conducted using a 10- and 3-stage Micro Orifice Uniform Deposit Impactor (MOUDI) from 2017 to 2018. In this study, the characteristics of PMs in this region were evaluated by measuring the mass concentration of PMs and analyzing water-soluble ions and metallic elements, as well as dioxins. Additionally, principal component analysis (PCA) was used to identify the potential sources of PMs. The results showed that the mean concentration of coarse (>1.8 μm), fine (0.1–1.8 μm), and ultrafine (<0.1 μm) particles were 13.60, 14.38, and 3.44 μg/m3, respectively. In the industry-intensive region, the size distribution of ambient particles showed a bi-modal distribution with a high concentration of coarse particles in the spring and summer, while fine particles were dominant in the autumn and winter. The most abundant water-soluble ions of PMs were NO3−, Cl−, and SO42−, while the majority of metallic elements were Na, Fe, Ca, Al, and Mg in different particle sizes. The results of Pearson’s correlation analysis for metals indicated that the particles in the collected air samples were related to the iron and steelmaking industries, coal burning, vehicle exhausts, and high-tech industries. The dioxin concentration ranged from 0.0006 to 0.0017 pg I-TEQ/Nm3. Principal component analysis (PCA) revealed that the contribution to PMs was associated with sea salt, secondary pollutants, and industrial process.

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