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Related Experiment Video

Updated: May 30, 2026

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

Published on: January 7, 2019

Particulate composition characteristics under different ambient air quality conditions.

Jiun-Horng Tsai¹, Lisa Tzu-Chi Chang, Yao-Sheng Huang

¹Department of Environmental Engineering, Sustainable Environmental Research Center, National Cheng-Kung University, Tainan, Taiwan, Republic of China.

Journal of the Air & Waste Management Association (1995)

|August 20, 2011

Summary

Air quality in southern Taiwan is linked to particulate matter composition. Ionic species and carbon content in fine and coarse particles significantly correlate with the Pollutant Standards Index (PSI), especially during winter and spring.

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Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

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Area of Science:

Atmospheric Chemistry
Environmental Science
Air Quality Monitoring

Background:

Particulate matter (PM) composition, including elemental carbon (EC), organic carbon (OC), and ionic species, influences ambient air quality.
Understanding the relationship between PM composition and air quality indices like the Pollutant Standards Index (PSI) is crucial for environmental management.

Purpose of the Study:

To investigate the particulate matter composition in southern Taiwan from 2004 to 2006.
To analyze the correlation between various particle compositions and the ambient air quality (PSI).

Main Methods:

Analysis of particulate matter composition (EC, OC, water-soluble ionic species, elemental composition).
Correlation analysis between PM composition and the Pollutant Standards Index (PSI).
Investigation of meteorological parameters and mixing height in relation to air quality.

Main Results:

PSI showed significant correlations with fine and coarse particulate matter (PM), ionic species, and moderate correlation with carbon content in fine particles.
Ionic species (Cl-, NO3-, SO4(2-), Na+, NH4+, Mg2+, Ca2+) and carbon content (NO3-, SO4(2-), NH4+, K+) increased significantly in both coarse and fine PM as air quality shifted from good to moderate.
Lower temperatures and decreased mixing height were associated with higher PM concentrations and PSI values, indicating frequent PM episodes in winter and spring.

Conclusions:

Particulate matter composition, particularly ionic species and carbon content, is a key determinant of air quality in southern Taiwan.
Air quality management strategies should consider the seasonal variations and meteorological factors influencing PM levels.
The study highlights the significant contribution of specific ionic species to air pollution episodes in the region.