PMID- 29073854
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20191120
IS  - 2162-2906 (Electronic)
IS  - 1096-2247 (Linking)
VI  - 49
IP  - 9
DP  - 1999 Sep
TI  - Wintertime PM(2.5) and PM(10) Source Apportionment at Sacramento, California.
PG  - 25-34
LID - 10.1080/10473289.1999.10463881 [doi]
AB  - The chemical mass balance (CMB) model was applied to winter (November through 
      January) 1991-1996 PM2.5 and PM10 data from the Sacramento 13th and T Streets 
      site in order to identify the contributions from major source categories to peak 
      24-hr ambient PM(2.5) and PM(10) levels. The average monthly PM(10) monitoring 
      data for the nine-year period in Sacramento County indicate that elevated 
      concentrations are typical in the winter months. Concentrations on days of 
      highest PM(10) are dominated by the PM2.5 fraction. One factor contributing to 
      increased PM(2.5) concentrations in the winter is meteorology (cool temperatures, 
      low wind speeds, low inversion layers, and more humid conditions) that favors the 
      formation of secondary nitrate and sulfate aerosols. Residential wood burning 
      also elevates fine particulate concentrations in the Sacramento area. The results 
      of the CMB analysis highlight three key points. First, the source apportionment 
      results indicate that primary motor vehicle exhaust and wood smoke are 
      significant sources of both PM(2.5) and PM(10) in winter. Second, nitrates, 
      secondarily formed as a result of motor-vehicle and other sources of nitrogen 
      oxide (NO(x)), are another principal cause of the high PM(2.5) and PM(10) levels 
      during the winter months. Third, fugitive dust, whether it is resuspended soil 
      and dust or agricultural tillage, is not the major contributor to peak winter 
      PM(2.5) and PM10 levels in the Sacramento area.
FAU - Motallebi, Nehzat
AU  - Motallebi N
AD  - a California Air Resources Board, Research Division , Sacramento , California , 
      USA.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Air Waste Manag Assoc
JT  - Journal of the Air & Waste Management Association (1995)
JID - 9503111
EDAT- 1999/09/01 00:00
MHDA- 1999/09/01 00:01
CRDT- 2017/10/28 06:00
PHST- 2017/10/28 06:00 [entrez]
PHST- 1999/09/01 00:00 [pubmed]
PHST- 1999/09/01 00:01 [medline]
AID - 10.1080/10473289.1999.10463881 [doi]
PST - ppublish
SO  - J Air Waste Manag Assoc. 1999 Sep;49(9):25-34. doi: 
      10.1080/10473289.1999.10463881.