Ambient Air Ionic Species (F-, Cl-, NO3-, SO42-) Compositions Study at a Semi-Open/Outdoor Concrete Processing Factory in Changhua County, Taiwan

Authors:

Fang GC¹*, Jhao GJ², Chang CW², Huang WC¹ and Zhuang YJ¹

DOI: 10.23880/eoij-16000138

Volume 2, Issue 1

Abstract

This study was to collect ambient air TSP, dry depositions, PM_¹⁰, PM_2.5 compositions and analyze the ionic species (F-, Cl-, NO₃-, SO₄²-) compositions which attached in TSP, dry depositions, PM₁₀, PM_2.5 for these semi-open/outdoor environments at a concrete processing factory in ChangHua Coastal Park. And the comparisons of ambient air ionic species (F-, Cl-, NO₃-, SO₄²-) in TSP, dry depositions, PM10, PM2.5 compositions for these semi-open/outdoor environments were also discussed during the year of 2017-half year observations. And the results indicated that the average ionic species SO₄²- was ranked highest average compositions in dry depositions, PM10, PM2.5 when compared with those of the other ionic species (F-, Cl-, NO₃-) while the ionic species for Cl- was ranked highest average compositions in TSP when compared with those of the other ionic species (F-, NO₃-, SO₄²-) at this semi-open/outdoor environments sampling site at a concrete processing factory in Changhua Coastal Park. In addition, the average ionic SO₄²- compositions in semi-open environment were higher than that of outdoor environment. In addition, ionic species SO₄²- occupied were than 60% of the compositions percentages when compared with all the ionic species at both PM₁₀ and PM_2.5. And ionic species SO₄²- compositions in TSP was occupied more than 50% of than concentrations percentages when compared with all the ionic species. Finally, ionic species SO₄2- compositions in dry depositions was occupied more than 40% of compositions percentages when compared with all the other ionic species in this study.

Keywords:

Ambient Air Particles; Dry Depositions; Concrete Processing Factory; Semi-Open/Outdoor; Ionic Species Compositions

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