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Measurement of NO x , SO 2 , SPM, and O 3 at a High Altitude Station in Northwestern Turkey
Author(s) -
Tuncel Semra G.,
Baykal A. Hadi,
Tuncel Gürdal,
Özer Ulviye
Publication year - 1994
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.199400043
Subject(s) - atmospheric sciences , daytime , altitude (triangle) , particulates , chemistry , flux (metallurgy) , stratosphere , effects of high altitude on humans , diurnal temperature variation , pollutant , atmosphere (unit) , low altitude , meteorology , environmental chemistry , physics , geometry , mathematics , organic chemistry
Temporal variation of NO, NO 2 , SO 2 , SPM (suspended particulate matter), and O 3 were measured at a high altitude station in the northwestern part of Turkey. The long‐ and short‐term trends in the concentrations of measured parameters were investigated to understand sources contributing to the observed concentrations of these pollutants. Higher concentrations of O 3 during summer months were consistent with higher photochemical production with increased solar flux. Seasonal patterns observed in other parameters were consistent with their source strengths during different periods of the year. O 3 showed a peak at approximately 3 pm, together with SO 2 and NO 2 . SPM, on the other hand, showed a different diurnal pattern with a maximum concentration occurring during night hours. The main sources of O 3 , SO 2 , and NO 2 on Mt. Uludag were found to be transported from the town of Bursa and from a nearby ski resort. The vehicular activities on the road which connects the town of Bursa to the ski resort are also an observable source of O 3 and its precursors, but not of SO 2 and SPM. High concentrations of O 3 were observed during night hours. Unlike daytime peaks, these peaks were sporadic and did not correlate with the SO 2 and NO 2 . These night‐time O 3 concentrations were suspected to be due to injection from the stratosphere.