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Particulate emissions from construction activities.

Gregory E Muleski¹, Chatten Cowherd, John S Kinsey

¹Midwest Research Institute, Kansas City, MO 64110, USA.

Journal of the Air & Waste Management Association (1995)

|July 19, 2005

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Construction activities significantly emit particulate matter (PM10 and PM2.5). Onsite testing revealed higher PM10 emissions from earthmoving than previously estimated, with mud carryout producing less PM2.5 than expected.

Area of Science:

Environmental Science
Air Quality Research
Construction Engineering

Background:

Road and building construction is a recognized source of particulate matter (PM) emissions in the US.
Limited research has previously characterized construction-related PM emissions.

Purpose of the Study:

Develop PM10 and PM2.5 emission factors for construction operations.
Evaluate the effectiveness of dust control measures like watering and aprons.

Main Methods:

Onsite testing of construction component operations (1998-2001).
Focused on earthmoving with scrapers, truck loading, dumping, and mud/dirt carryout.
Assessed effects of watering and site access aprons on emissions.

Main Results:

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PM10 emissions from earthmoving were up to ten times higher than AP-42 predictions.
PM2.5 emissions from mud/dirt carryout were lower than anticipated.
Watering scraper routes showed significant control efficiency, following a bilinear moisture model.

Conclusions:

Existing emission factors for construction are likely underestimated, particularly for earthmoving.
Mud and dirt carryout contribute less to PM2.5 than expected.
Watering is an effective dust control method for construction activities.