Summertime measurements of benzene and toluene in Athens using a differential optical absorption spectroscopy system
Φόρτωση...
Ημερομηνία
Συγγραφείς
Petrakis, M.
Psiloglou, B.
Kassomenos, P. A.
Cartalis, C.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
Journal of the Air & Waste Management Association
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
In this paper, measurements of benzene, toluene, p,m-xylene, ozone (O-3), nitrogen dioxide (NO2), and sulfur dioxide (SO2) made using the differential optical absorption spectroscopy (DOAS) technique during a 4-month period of summer 2000 (June-September) in Athens, Greece, are presented. An assessment of benzene mean value concentrations during this 4-month period exceeded 10 mug/m(3), which is 2 times greater than the average yearly limit proposed by European authorities. Toluene measurements present mean values of approximately 33 mug/m(3). Benzene and especially toluene measurements are highly correlated with NO2 and anticorrelated with O-3. High values of benzene, NO2, and toluene are also correlated with winds from the southeast section, an area of industrial activity where emissions of volatile organic compounds (VOCs) have been recorded in previous studies. O-3 is correlated with winds from the south-southwest section affected by the sea breeze circulation. Diurnal variations of O-3, NO2, and SO2 concentrations are compatible with measurements from the stations of the Ministry of Environment's network. Outliers are combined with weak winds from the south-southwest. As far as p,m-xylene measurements are concerned, there is a poor correlation between gas chromatography (GC) and DOAS Opsis measurements, also observed in previous relevant campaigns and eventually a criticism in the use of the DOAS Opsis model for the measurement of p,m-xylene.
Περιγραφή
Λέξεις-κλειδιά
hydroxyl radical concentrations, aromatic-hydrocarbons, medcaphot-trace, doas system, greece, area, air, thessaloniki, atmosphere, emissions
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
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Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών