INTERNATIONAL JOURNAL OF AGRICULTURAL TECHNOLOGY

Volume 14, No. 07, Month DECEMBER, Year 2018, Pages 1657 - 1668

The use of epiphytic lichen as a biomonitor on air quality, nitrogen dioxide and sulphur dioxide deposition in mab ta phut industrial estate, rayong province

Pitakpong, A. and Maungsan, N.

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Lichens are co-occurring organisms including fungi and algae that used as the environmental biomornitor or biomarker extensively. The results of air pollution to lichen diversity in surrounding area of Mab Ta Phut industrial estate, Rayong province was recorded. The duration of study was in October 2012 to September 2013. The kind and frequency of lichen using the frequent surveying flame (20 x 50 cm2) on mango trees of 110 was studied by collected nitrogen dioxide and sulphur dioxide deposition using the method of atmospheric collection with the tube of passive sampling and was measured gas deposition by ion chromatography technique. Result found of 11 families, 20 genera and 26 species including the foliose lichens of 6 species and the crustose lichens of 20 species, the most lichens were in genera of Arthonia, Dirinaria, Lecanora and Physcia, and the presented lichen species of Physcia poncinsii Hue. and Pyxine cocoes (Swartz) Nyl. were highly frequency and found in all areas. The measurements showed that a value of nitrogen dioxide deposition of 0.28-5.08 ppbv and sulphur dioxide deposition of 0.52-7.60 ppbv. The analysis of correlation between lichen diversity of biomarker and gas deposition in each study area was using the correlation coefficient of Pearson value found that both of nitrogen dioxide and sulphur dioxide deposition had negatively significant correlation with lichen diversity index at 95% confidence interval (r = -0.245, p < 0.05) and (r = -0.081, p < 0.05), respectively. There were demonstrated that nitrogen dioxide and sulphur dioxide deposition increasingly that affected to lichen diversity, and there was possible used lichen as the atmospheric biomonitor.

Keywords

Lichen, Diversity, Nitrogen Dioxide, Sulphur Dioxide

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