Infoscience

Conference paper

Measurement of formaldehyde (HCHO) by DOAS: intercomparison to DNPH measurements and interpretation from Eulerian model calculations

Formaldehyde is a primary and secondary air pollutant. As an intermediate product of hydrocarbon photooxidn., it contributes to the formation of photochem. pollution in urban areas. In addn., chronic or acute exposure to HCHO (a possible carcinogen) constitutes an important health hazard. Differential optical absorption spectroscopy (DOAS) is one of the best-suited techniques for monitoring formaldehyde. Within the frame of a European Union project, a field measurement campaign (PIPAPO) was carried out from May to June, 1998, in the Milan, Italy, area. During PIPAPO, a large no. of air pollutants, including formaldehyde, were monitored at several sites from Milan to the Swiss Alps foothills. Located at Seregno (25 km north of downtown Milan), EPFL (the Ecole Polytechnique Federale de Lausanne) carried out formaldehyde measurements by DOAS and performed intercomparison DNPH (2,4-dinitrophenylhydrazine) samples, which were analyzed at JRC (the Joint Research Center). Despite having different spatial and time resoln., DOAS and DNPH measurements of formaldehyde compare fairly well. The formaldehyde concn. time series retrieved from DOAS were analyzed with respect to the meteorol. conditions, particularly regarding heterogeneous removal processes, and the concn. of other air pollutants assocd. with formaldehyde emission and prodn. Pollutant dynamics calcns., made with a 3-dimensional photochem. grid (Eulerian) model over a wide spatial domain, were compared to the measurements and provided a basis for the interpretation of the formaldehyde measurements performed during one of PIPAPO's intensive observation periods (IOP).

    Keywords: 50-00-0 (Formaldehyde) Role: ANT (Analyte) ; POL (Pollutant) ; ANST (Analytical study) ; OCCU (Occurrence) (measurement of airborne formaldehyde by differential optical absorption spectroscopy and intercomparison to dinitrophenylhydrazine measurements and ; formaldehyde detn air differential optical absorption spectroscopy evaluation ; modeling comparison formaldehyde detn air differential optical absorption spectroscopy

    Note:

    Copyright 2003 ACS

    CAPLUS

    AN 2001:590073

    CAN 135:246290

    59-1

    Air Pollution and Industrial Hygiene

    80

    Air Pollution Laboratory (LPAS),Swiss Federal Institute of Technology (EPFL),Lausanne,Switz. FIELD URL:

    Conference

    69BMLL

    written in English.

    Absorption spectroscopy (differential; measurement of airborne formaldehyde by differential optical absorption spectroscopy and intercomparison to dinitrophenylhydrazine measurements and interpretation from Eulerian model calcns.); Air analysis; Air pollution; Environmental modeling (measurement of airborne formaldehyde by differential optical absorption spectroscopy and intercomparison to dinitrophenylhydrazine measurements and interpretation from Eulerian model calcns.); Weather (measurement of airborne formaldehyde by differential optical absorption spectroscopy and intercomparison to dinitrophenylhydrazine measurements and interpretation from Eulerian model calcns. in relation to); Air pollution (photochem.; measurement of airborne formaldehyde by differential optical absorption spectroscopy and intercomparison to dinitrophenylhydrazine measurements and interpretation from Eulerian model calcns. in relation to); Air pollution (secondary; measurement of airborne formaldehyde by differential optical absorption spectroscopy and intercomparison to dinitrophenylhydrazine measurements and interpretation from Eulerian model calcns.)

    1) Lowe, D; Ph D Thesis, Koln University 1982|2) Anderson, G; Atmospheric Environment 1996, 30, 2113|3) Riggs, S; A&WMA; 90th Annual Meeting & Exhibition 1997|4) Anon; http://www1ych/.ltorsim.loop 2000|5) Calpini, B; Proceedings of EUROTRAC Symposium '98 1998, 2, 875|6) Quaglia, P; European J Analytical Chem (Analusis) 1999, 27, 305|7) Chanda, A; Proceedings of A&WMA; 90th Annual Meeting & Exhibition, Paper 97-RP115.02 1997|8) Schiff, H; Proceedings of A&WMA; 89th Annual Meeting & Exhibition, Paper 96-TP26B 04 1996|9) Schiff, H; Proceedings of Optical Sensing for Environmental and Process Monitoring 1994|10) Platt, U; Air Monitoring by Spectroscopic Techniques 1994, 27|11) Jimenez, R; http://www1ych/.ltorsim.loop/pipapo/qaqc_f.html 2000|12) Arnts, R; Environ Sci Technol 1989, 23, 1428|13) Stutz, J; Applied Optics 1996, 35, 6041|14) Hartman, R; Proceedings of Optical Sensing for Environmental and Process Monitoring 1994, 194|15) Finlayson-Pitts, B; Atmospheric Chemistry:Fundamentals and Experimental Techniques 1986|16) Harley, R; Environm Sci Technol 1993, 27, 378|17) Schayes, G; J Appl Meteor 1996, 35, 1815|18) Bornstein, B; J Appl Meteor 1996, 35, 1824|19) Lurmann, F; EPA Report 600/3-87/014-A 1987|20) Ruggaber, A; J Atmos Chem 1994, 18, 171

    Reference

    • EPFL-CONF-162956

    Record created on 2011-02-01, modified on 2016-08-09

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