N.C. Department of Environment and Natural Resources
 Welcome to the North Carolina Division of Air Quality
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM AIR QUALITY SUMMARY REPORT



Mar. 15, 2012



MSA: Charlotte-Gastonia-Rock Hill,NC-SC JAN 2011 FEB 2011 MAR 2011 APR 2011



01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 71 23 33 38 62 45 31 31 44 28 34 29 41 52 59 52 66 64 32 30 31 38 62 69 77 32 46 35 42 52 64 S U M T W H F S U M T W H F S U M T W H F S U M T W H F S U M 69 25 28 37 19 33 56 33 31 40 52 42 37 44 43 54 53 65 40 37 37 35 34 55 36 38 48 40 T W H F S U M T W H F S U M T W H F S U M T W H F S U M 40 48 36 38 31 28 36 45 35 31 39 51 54 41 47 35 43 64 47 42 45 51 53 37 37 38 30 43 49 38 27 T W H F S U M T W H F S U M T W H F S U M T W H F S U M T W H 42 46 47 47 42 46 61 55 55 33 44 44 50 58 50 44 45 48 74 45 52 31 34 43 36 29 34 43 47 64 F S U M T W H F S U M T W H F S U M T W H F S U M T W H F S



MAY 2011



49 47 39 45 47 46 51 58 87 87 64 53 64 42 42 41 19 31 47 50 80 62 56 51 60 57 42 45 50 58 97 U M T W H F S U M T W H F S U M T W H F S U M T W H F S U M T



JUN 2011



114 129 93 132 77 87 106 140 101 132 64 49 90 50 71 87 93 50 40 90 129 40 28 47 71 55 119 61 74 97 W H F S U M T W H F S U M T W H F S U M T W H F S U M T W H



JUL 2011



137 93 63 66 116 61 67 69 47 43 69 109 90 47 32 34 36 77 90 106 93 64 65 60 41 60 87 90 129 59 45 F S U M T W H F S U M T W H F S U M T W H F S U M T W H F S U



AUG 2011



61 106 97 90 47 60 47 87 50 84 46 47 41 47 49 67 61 80 100 58 51 49 45 50 47 44 46 64 61 47 51 M T W H F S U M T W H F S U M T W H F S U M T W H F S U M T W



SEP 2011



122 145 63 47 31 35 32 42 50 50 50 67 93 116 61 21 19 29 28 33 23 25 34 27 22 22 37 41 42 41 H F S U M T W H F S U M T W H F S U M T W H F S U M T W H F



YEAR: OCT 2011



28 33 36 42 38 43 41 42 33 38 34 21 32 35 38 36 47 45 26 19 38 50 53 43 42 45 46 19 29 41 34 S U M T W H F S U M T W H F S U M T W H F S U M T W H F S U M



D A Y O F M O N T H



2011 NOV 2011 40 40 37 33 29 32 32 40 41 40 31 41 43 31 34 30 26 32 53 53 35 27 27 36 52 47 32 29 17 32



DEC 2011



37 79 59 55 52 26 24 32 42 40 30 36 52 47 35 28 38 40 37 51 23 22 25 39 52 28 24 32 49 42 51 H F S U M T W H F S U M T W H F S U M T W H F S U M T W H F S T W H F S U M T W H F S U M T W H F S U M T W H F S U M T W



No. of Days with AQI Values: Highest AQI/YR = Days CO =0



Good < or = 50 238 145



Moderate 51-100 109 Unhealthy for Sensitive Groups 101-150 18 Unhealthy 151-200 0 Very Unhealthy 201-300 0 ------Hazardous----->301 0



Total Days with AQI Values = 365



Days O3 = 202 Days SO2 =0 Days NO2 = 17 Days PM2.5 = 146 Days PM10 = 0



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