1

Air Quality Program

Background on Air Quality

in the

Klamath Falls 

Nonattainment Area

Air Quality Program

Klamath Falls 

Nonattainment Area Boundary
2

Air Quality Program

Particulate Matter Trend (24-hour)

Klamath Falls

0

50

100

150

200

250

300

350

400

450

500

550

600

650

700

750

800

198619881990199219941996199820002002200420062008

ug/m3

PM10

PM2.5

EPA Revised PM2.5 standard

EPA PM10 standard

EPA PM2.5 standard

1988 Worst woodsmoke‐

related PM pollution recorded

in U.S. (792 μg/m3)

1991 EQC adopted

PM10 attainment

plan

Air Quality Program

Particulate Matter Trend (Annual)

Klamath Falls

0

10

20

30

40

50

60

70

80

1987198819891990199119921993199419951996199719981999200020012002200320042005200620072008

PM10 μg/m3

PM2.5 μg/m3

1991 EQC

adopted PM10

attainment plan

2002 EQC adopted PM10

maintenance plan

EPA PM10 Annual Standard

EPA PM2.5 Annual Standard
3

Air Quality Program

Last Three Years of PM2.5 Data

0

10

20

30

40

50

60

2008 2009 2010

Micrograms/Cubic Meter

Daily Standard

Daily Peterson 

School

Annual Standard

Annual Peterson 

School

Air Quality Program

PM2.5 in Tabular Form

Daily 

Standard

Daily 

μg/m3

Annual 

Standard

Annual

Average

2010 35 34.6 15 9.7

2009 35 44 15 11.3

2008 35 52 15 12.5

2007 35 40 15 10.8

2006 65 48 15 11.1

2005 65 49 15 11.7

2008-2010 three year average 

Standard μg/m3

Daily 35 46.3

Annual 15 11.2

Note:

Wildfire 

Data 

Removed 

In 2008 and 

2009
4

Air Quality Program

Other Monitoring

• Background Monitor – 2009

• Survey Sampler Data – 2010-11

• Meteorological Data – 2008-10 

(conducted by USFS)

Air Quality Program

Background Data

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

Stateline Road - 24 hr av PM2.5 (μg/m3 ) est

24 hr av PM2.5 (μg/m3 ) est
5

Air Quality Program

Klamath Falls PM10 Attainment Plan

• 1991 – EQC adopted PM10 attainment plan

– Included emission reduction strategies:

• Woodstove curtailment

• Open burning curtailment

• Winter road sanding controls

• Public education programs

• Forestry agreement

• Agricultural agreement

• 1994 - Klamath Falls complied with the standard

• 2002 – EQC adopted PM10 maintenance plan 

Air Quality Program

Source Characterization

24-hr PM2.5 Worst Case Day Estimate (2005 data)

SB 102 – Heat Smart

10

Residential 

Wood 

Combustion

Major Industry Cars & Trucks

Open Burning 

(includes 

forest burning)

Misc. Small 

Sources

Non-road 

Engines
6

Air Quality Program

Traffic & Commuting Patterns

Air Quality Program
7

Air Quality Program

Air Quality Program

Reduction Strategies Currently Underway

• Klamath County revised their Clean Air 

Ordinance (August 2007):

– Revised woodstove curtailment levels

– Required removal of uncertified woodstove upon 

sale of home

– Open burn – 2 periods,15 day windows - AQZ

– Tightened enforcement

• DEQ and Klamath County formed a science 

and technical advisory committee (January 

2008)
8

Air Quality Program

Advisory Committee Report

• Should:

– identify the existing situation in 2008

– identify and quantify existing strategies

– identify and quantify new strategies

– Identify strategies that should be implemented 

should Klamath Falls not meet the Dec 2014 

deadline

Air Quality Program

Timeline – What has occurred, what is 

expected, deadlines

EPA revises PM2.5 

standard 

EPA formally 

designates Klamath 

Falls as 

nonattainment (and 

establishes boundary)

Attainment plan due 

to EPA

Klamath Falls must 

show compliance 

with standard

KAQSTAC – technical committee 

Monitoring data to determine compliance

Advisory 

committee

Advisory committee 

report finalized

DEQ plan 

development and 

public hearings

2006 2013 2011 2012 2014 2009
9

Air Quality Program

DISCUSSION