3.0 Affected Environment - Knik Arm Bridge and Toll Authority

Knik Arm Crossing DraftFinal EIS
Affected Environment
Table 3-15. Monitored particulate matter equal to or less than 10 microns in diameter in Anchorage and Mat-Su areas
Monitor location
Monitor
I.D.
Year
Daily
observations
Maximum
Second
maximum
24-hour value (μg/m 3 )
Third
maximum
Fourth
maximum
NAAQS
Annual
average
3000 East 16th (Trinity Christian
Church)
020200018-1 2002 62 46 40 33 33 150 14 50
3000 East 16th (Trinity Christian
Church)
020200018-1 2003 61 226 57 40 39 150 19 50
3000 East 16th (Trinity Christian
Church)
020200018-1 2004 59 38 37 37 35 150 16 50
1100 Muldoon Road 020200043-1 2002 85 63 58 51 49 150 28 50
1100 Muldoon Road 020200043-1 2003 60 277 187 180 138 150 47 50
1100 Muldoon Road 020200043-1 2004 35 83 55 49 48 150 28 50
3335 East Tudor Road 020200044-1 2002 167 105 104 97 94 150 30 50
3335 East Tudor Road 020200044-1 2003 177 421 179 117 108 150 26 50
3335 East Tudor Road 020200044-1 2004 178 97 97 89 86 150 22 50
Parkgate – Eagle River 020201004-2 2002 60 46 40 38 36 150 18 50
Parkgate – Eagle River 020201004-2 2003 58 590 92 82 75 150 32 50
Parkgate – Eagle River 020201004-2 2004 61 70 43 38 38 150 17 50
Harrison Court – Butte (Mat-Su) 021700008-1 2002 109 37 36 33 30 150 9 50
Harrison Court – Butte (Mat-Su) 021700008-1 2003 61 265 122 82 72 150 21 50
Harrison Court – Butte (Mat-Su) 021700008-1 2004 43 605 97 51 40 150 29 50
Source: United States Environmental Protection Agency. October 2005. “AIRS Air Quality Monitoring Database,” .
Note: Bolded data designate readings greater than NAAQS. Most were affected by a week-long windstorm in March 2003
NAAQS
(μg/m 3 )
3-102 12/18/07