10th Regional IUAPPA Conference, İstanbul, Türkiye, 23 - 26 Eylül 1997, ss.522-524
Although there are not important industrial runnings caused to air pollution in Biga Peninsula, it was found out that the ratios of sulphur in lichens vary 288-2090 ppm. It is estimated that the cause of these air pollution could be the high air mass movements.