OZONE Monitoring Network 2015 Annual AQ Monitoring Meeting MAINE DEPARTMENT OF ENVIRONMENTAL...
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Transcript of OZONE Monitoring Network 2015 Annual AQ Monitoring Meeting MAINE DEPARTMENT OF ENVIRONMENTAL...
OZONE Monitoring Network
2015 Annual AQ Monitoring Meeting
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION
Protecting Maine’s Air, Land and Water
Tom Downs, CCMChief [email protected]
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
Current Ozone Monitoring Network
0
50
100
150
200
AIR
QUALITY
INDEX
2014 Maximum Daily Air Quality Levels due to Ozone in Maine
UNHEALTHY
GOOD
MODERATE
UNHEALTHY FOR SENSITIVE GROUPS
Data is preliminary
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
Meteorological conditions conducive (warmer and drier than normal in the midwest)
to ozone production and transport into the Ozone
Transport Region
Wet summer in Maine
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
Meteorological conditions not conducive to ozone production and transport into the Ozone
Transport RegionTemperatures conducive to ozone production in the northern part (NYC to Maine) of the OTR however it was a wet summer in the East.
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
Meteorological conditions not conducive to ozone
production and transport into the Ozone Transport Region
Another wet
summer in Maine
Transport temperatures
below normal in the Midwest and core of the OTR
Cooler than normal except
in eastern areas of the OTR
0.055
0.060
0.065
0.070
0.075
0.080
0.085
0.090
0.095
0.100
0.105
0.110
0.115
0.12019
83-8
5
1984
-86
1985
-87
1986
-88
1987
-89
1988
-90
1989
-91
1990
-92
1991
-93
1992
-94
1993
-95
1994
-96
1995
-97
1996
-98
1997
-99
1998
-00
1999
-01
2000
-02
2001
-03
2002
-04
2003
-05
2004
-06
2005
-07
2006
-08
2007
-09
2008
-10
2009
-11
2010
-12
2011
-13
2012
-14
8-H
R O
ZO
NE
DE
SIG
N V
AL
UE
(pp
m)
3-YEAR PERIOD
MAINE 8-HOUR OZONE DESIGN VALUE TRENDS (only sites with 2012-14 DV > 60 ppb)
Kennebunkport
Cape Elizabeth
Cadillac
Port Clyde
McFarland Hill
Gardiner
Shapleigh
West Buxton
Durham
Portland
NAAQS
Created by Tom Downs, Maine DEP-BAQ - 1/7/2015
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
-0.015
-0.010
-0.005
0.000
0.005
0.010
0.015
0.020
0.025
0.030
0.0357/
17/2
014
7/24
/201
4
7/31
/201
4
8/7/
2014
8/14
/201
4
8/21
/201
4
8/28
/201
4
9/4/
2014
9/11
/201
4
9/18
/201
4
9/25
/201
4
10/2
/201
4
10/9
/201
4
10/1
6/20
14
10/2
3/20
14
10/3
0/20
14
11/6
/201
4
11/1
3/20
14
11/2
0/20
14
11/2
7/20
14
12/4
/201
4
12/1
1/20
14
12/1
8/20
14
12/2
5/20
14
1/1/
2015
1/8/
2015
1/15
/201
5
1/22
/201
5
1/29
/201
5
2/5/
2015
2/12
/201
5
2/19
/201
5
2/26
/201
5
PPM
NOAA's AQFS CMAQ V4.6.3 EXPERIMENTAL MODEL OZONE PREDICTIONS vs. OBSERVATIONS FOR SITES IN MAINE
CETL MOD - OBS O3
MCF MOD - OBS O3
Significant changes to the model which became operational
on January 29
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
PROPOSED OZONE STANDARD REVISION
• Final October 1, 2015
• Most likely 65 ppb or 70 ppb for both the primary and secondary 8-hour Ozone NAAQS – with new AQI breakpoints
• Attainment/nonattainment Designations will use 2014-16 data
• Proposed changes to data handling conventions • Only looks at 17 of 24 possible 8-hr running averages to eliminate “double
counting” of exceedances (could miss some exceedances) • For days with less than 75% data recovery rates (< 13 instead of 17 valid 8-
hr averages) the daily maximum 8-hr concentration is valid if it’s greater than the NAAQS.
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
EXAMPLE OF A MISSED EXCEEDANCE OF A 70 PPB NAAQS USING THE PROPOSED DATA HANDLING CONVENTIONS
Only look at 17 of 24 8-hour periods?
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
Differences due to proposed data
handling conventions
96
83
92
71
75
83
64
57
42
61
4143
39
29
38
19
32
24
29
23
1714
8
13 13 12 14
10105
97 5 8
34 38
3 4 500
48
12162024283236404448525660646872768084889296
100
2008 2009 2010 2011 2012 2013 2014
NUMBER
OF
DAYS
Number of Moderate and USG AQI Days in Maine due to Ozonefor the current NAAQS and potential future NAAQS
> 49 ppb
> 54 ppb
> 59 ppb
> 65 ppb
> 70 ppb
> 75 ppb
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep
Suggested Changes to Ozone Network
Move Bowdoinham site closer to coastline
(Phippsburg/Reid SP?)
Move North Lovell site to a more
exposed (higher elevation) location
www.maine.gov/dep