2002
DOI: 10.1080/10473289.2002.10470781
|View full text |Cite
|
Sign up to set email alerts
|

Size Distribution and Diurnal and Seasonal Trends of Ultrafine Particles in Source and Receptor Sites of the Los Angeles Basin

Abstract: This paper presents results from a study conducted in two urban areas of southern California, Downey and Riverside, to examine the effect of different sources and formation mechanisms on the size distribution and temporal trends of ultrafine particles. Near-continuous data were collected for 5 months at each location. Our data clearly identified Downey as a source site, primarily affected by vehicular emissions from nearby freeways, and Riverside as a receptor site, where photochemical secondary reactions form… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

7
108
1

Year Published

2005
2005
2015
2015

Publication Types

Select...
4
1
1

Relationship

2
4

Authors

Journals

citations
Cited by 139 publications
(116 citation statements)
references
References 22 publications
(40 reference statements)
7
108
1
Order By: Relevance
“…It should be noted that the proximity of that site to the ocean results in unusually higher relative humidity levels compared to the rest of the urban sites, with prolonged periods of night time and morning fog. The smaller summertime number median diameter could be due to the increased photochemical production of smaller particles, as observed by Kim et al (2002) and Wehner and Wiedensohler (2003). During the first week of October, union workers at the port of Long Beach went on strike.…”
Section: Seasonal and Spatial Trendsmentioning
confidence: 93%
See 4 more Smart Citations
“…It should be noted that the proximity of that site to the ocean results in unusually higher relative humidity levels compared to the rest of the urban sites, with prolonged periods of night time and morning fog. The smaller summertime number median diameter could be due to the increased photochemical production of smaller particles, as observed by Kim et al (2002) and Wehner and Wiedensohler (2003). During the first week of October, union workers at the port of Long Beach went on strike.…”
Section: Seasonal and Spatial Trendsmentioning
confidence: 93%
“…During summer months, secondary aerosol formation is favored and new ultrafine particles may form as a result of the condensation of low-volatility products of photochemical reactions (largely organic compounds) onto stable, nanometer-size particles (O'Dowd et al, 1999;Kim et al, 2002;Sardar et al, 2004). Secondary aerosol formation is the most likely explanation for the diurnal trends in PN during the summer period at USC and Long Beach (Figures 4b and 5b, respectively) in which the peak particle concentrations during the afternoon period either coincide or slightly lag behind the peak in O 3 concentrations.…”
Section: Diurnal Trendsmentioning
confidence: 99%
See 3 more Smart Citations