Indoor-outdoor relationship of suspended particulate matter in Riyadh, Saudi Arabia

Journal Article · Tue Jan 01 00:00:00 EST 1985 · J. Air Pollut. Control Assoc.; (United States)

DOI:https://doi.org/10.1080/00022470.1985.10465880· OSTI ID:5780418

Rowe, D R; Nouh, M A; Al-Dhowalia, K H; Mansour, M E

The purpose of this study was to evaluate the suspended particulate matter levels indoors and outdoors in the Engineering Laboratories in the College of Engineering at King Saud University in Riyadh. The total suspended particulate matter (TSP) was evaluated by using standard high volume air samplers and the inhalable particulates (IP) were evaluated by using circular jet cascade impactors, (IACFM Andersen Samplers). The average TSP for samples taken outdoors was 662 ..mu..g/m/sup 3/ while the average TSP indoors was 167 ..mu..g/m/sup 3/. The average indoor-outdoor ratio for TSP was 0.25. The average IP less than 10 ..mu..m in size for samples taken outdoors was 137 ..mu..g/m/sup 3/ while the average IP indoors less than 10 ..mu..m was 78 ..mu..g/m/sup 2/. The average indoor-outdoor ratio for IP was 0.59. The average geometric mean size of the IP outdoors was 1.54 ..mu..m while indoors the average geometric mean size was 1.33 ..mu..m. It would appear that to set air quality standards it would be appropriate to consider both indoor and outdoor exposures.

• Research Organization: King Saud Univ., Riyadh, Saudi Arabia
• OSTI ID: 5780418
• Journal Information: J. Air Pollut. Control Assoc.; (United States), Vol. 35:1
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
PARTICULATES
ECOLOGICAL CONCENTRATION
PARTICLE SIZE
AIR SAMPLERS
CASCADE IMPACTORS
EVALUATION
INDOOR AIR POLLUTION
SAUDI ARABIA
AIR POLLUTION
ASIA
EQUIPMENT
PARTICLES
POLLUTION
SAMPLERS
SIZE
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)