Metals Present in Ambient Air before and after a Firework Festival in Yanshui, Tainan, Taiwan

Received: March 19, 2012
Revised: May 30, 2012
Accepted: May 30, 2012
Download Citation: RIS|BibTeX|https://doi.org/10.4209/aaqr.2012.03.0069  

Cite this article:
Do, T.M., Wang, C.F., Hsieh, Y.K. and Hsieh, H.F. (2012). Metals Present in Ambient Air before and after a Firework Festival in Yanshui, Tainan, Taiwan. Aerosol Air Qual. Res. 12: 981-993. https://doi.org/10.4209/aaqr.2012.03.0069

ABSTRACT

Fireworks displays are among the most important events during Taiwan’s annual Lantern Festival, although thus practice leads to metal and non-metal pollution in the air. In this study, we investigated the levels of 16 elements—Na, Mg, Al, Si, K, Ca, V, Cr, Mn, Fe, Cu, Zn, As, Sr, Ba, and Pb—during the fireworks festival in Yanshui, Tainan, Taiwan, and the chemical compositions and mass concentration distributions of these elements collected from the sampling site are reported. The airborne particles were mainly in the sub-micrometer regime, with coarse size ranges. The concentrations of most of the elements of interest in this study were higher in the post-fireworks display period than prior to it. Studies of respiratory epithelial cell death revealed that the levels of the elements collected in the sub-micrometer size range were more than two times lower than those in the micrometer size range in the post-fireworks display period, but the viability was 65.7% for the former compared with 73.3% for the latter. Accordingly, the toxicity of the sub-micrometer particles was greater than that of the micrometer-sized particles. We conclude that the burning of fireworks during the festival was the main source of the trace metals, and contributed significantly to the increase in airborne particulate matter.

Keywords: Airborne particulate matter; Laser ablation; Fireworks smoke emissions; Electrical low pressure impactor; Inductively coupled plasma mass spectrometry