. Author manuscript; available in PMC: 2016 May 1.

Published in final edited form as: Atmos Environ (1994). 2015 Feb 24;109:61–69. doi: 10.1016/j.atmosenv.2015.02.056

Table 5.

Concentrations of formaldehyde and acetaldehyde in ambient air in different cities

Locations	Study seasons	Average aldehyde concentration (μg/m³/ppb)		Measuring interval	References
Locations	Study seasons	Formaldehyde	Acetaldehyde	Measuring interval	References
Milan, Italy	Summer (August)	8.9/6.65	13.7/6.97	Non-available	Andreini et al., 2000
Rome, Italy	June – July 1994	22.77/17.00	18.27/9.30	1 hour	Possanzini et al., 1996
Downtown Savannah, GA, USA	December 1995 through November 1996	2.0/1.49	2.3/1.17	12 hours	MacIntosh et al., 2000
Suburban area in New Jersey, US	June – August 1992	15.37/11.48	4.75/2.42	2.5–3.5 hours	Zhang et al., 1994
Mexico city, Mexico	March-May 1993	43.5/32.48	33.8/17.21	2 hours	Baez et al., 1995
Rio de Janeiro, Brazil	May to November 2000	10.84/8.09	10.43/5.31	2–3 hours	Grosjean et al., 2002
Guangzhou, China	June to September 2003	13.68/10.21	8.33/4.24	2–3 hours	Feng et al., 2005
Guangzhou, China	August–September 2002	13.29/9.92	7.6/3.87	3.5 hours	Feng et al., 2004
Beijing, China	June to October 2008	29.3/21.9	27.1/13.8	24 hours	Current study