Air Quality & Prescribed Burning Smoke May 24, 2017 Smoke - - PowerPoint PPT Presentation

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Oct 03, 2022 287 likes •393 views

Air Quality Air Quality & Prescribed Burning Smoke May 24, 2017 Smoke Management Review Committee Meeting Rachel Sakata| Oregon Department of Environmental Quality Why is smoke a concern? Health effects Particulate matter (PM 2.5 )

SLIDE 1

Air Quality

Air Quality & Prescribed Burning Smoke

May 24, 2017 Smoke Management Review Committee Meeting

Rachel Sakata| Oregon Department of Environmental Quality

SLIDE 2

Why is smoke a concern?

Health effects

Health Effects Key air quality components of smoke

Particulate matter

(PM2.5)

Air toxics (benzene,

PAH)

SLIDE 3

PM2.5 standard (24-hour)

20 40 60 80 100 120 140 160

1987 1989 1991 1993 1995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015 150 ug/m3 65 ug/m3 35 ug/m3

SLIDE 4

Neph network

SLIDE 5

Oregon’s PM2.5 areas at risk of nonattainment

(24-hr standard)

Nonattainment Areas Areas of concern Former nonattainment areas

Portland Grants Pass Medford Prineville Burns Lakeview Klamath Falls Oakridge Eugene La Grande

SLIDE 6

SLIDE 7

How can prescribed fire potentially affect air quality in communities?

SMP is designed to prevent smoke from prescribed fires from entering communities, however at times: 1) Large contributions of smoke result in exceedances of the standard

Nonattainment concerns

SLIDE 8

How can prescribed fire potentially affect communities?

2) Small contributions of smoke in a community may contribute to levels that cause an exceedance of the standard 3) Even low levels of smoke well below the standard can have broader public health & welfare concerns

Impacts on vulnerable populations

SLIDE 9