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Report of the
New South Wales Chief Health Officer

Environment
Air quality - Regional Pollution Index

Regional Pollution Index monthly maximum and monthly mean, Sydney, Newcastle and Wollongong regions, NSW 1996 to 2005
Month Maximum for Wollongong Region Mean for Wollongong Region Maximum for Central Eastern Sydney Region Mean for Central Eastern Sydney Maximum for Newcastle Region Mean for Newcastle Region
JAN96 32 13.87 37 15.92 37 10.18
FEB96 36 12.64 33 16.55 24 11.14
MAR96 31 11.73 30 14.19 22 10.53
APR96 29 9.79 60 15.91 38 14.11
MAY96 16 8.58 54 20.25 51 15.69
JUN96 27 9.53 63 23.61 56 19.12
JUL96 34 13.00 69 23.89 52 16.62
AUG96 51 14.00 80 20.81 35 14.53
SEP96 38 14.30 54 17.93 29 13.55
OCT96 44 15.56 54 20.77 22 12.51
NOV96 23 11.83 32 16.58 23 10.80
DEC96 33 11.74 33 16.64 21 12.18
JAN97 31 10.54 66 15.28 27 10.30
FEB97 36 12.23 47 18.52 32 11.88
MAR97 41 15.00 43 16.61 20 9.28
APR97 54 19.40 199 34.63 36 14.87
MAY97 28 12.97 46 19.55 38 10.61
JUN97 30 14.02 79 26.47 86 19.60
JUL97 21 12.92 53 19.81 49 16.46
AUG97 53 16.08 107 22.08 39 16.50
SEP97 41 14.33 85 20.22 25 14.50
OCT97 33 17.24 56 20.08 35 17.15
NOV97 58 18.29 88 26.22 153 21.78
DEC97 138 26.75 244 38.31 122 24.73
JAN98 75 19.00 92 24.71 47 17.57
FEB98 53 19.20 202 25.65 38 13.43
MAR98 44 17.25 192 23.56 33 16.31
APR98 30 13.81 41 17.70 21 10.26
MAY98 21 10.53 61 19.06 42 14.56
JUN98 31 12.31 68 19.47 47 16.15
JUL98 32 13.29 81 26.13 52 18.16
AUG98 22 13.62 40 18.37 47 18.48
SEP98 20 13.89 37 18.02 24 15.47
OCT98 30 16.18 45 18.52 27 16.47
NOV98 33 13.55 27 14.88 27 13.80
DEC98 30 13.95 49 18.16 42 14.70
JAN99 38 12.67 46 17.62 61 13.91
FEB99 40 11.45 40 15.09 48 14.09
MAR99 43 15.71 42 19.03 71 18.61
APR99 32 13.75 32 15.73 28 13.84
MAY99 29 14.92 52 23.50 39 12.76
JUN99 23 11.76 55 21.15 42 13.90
JUL99 27 13.18 72 21.73 51 17.23
AUG99 31 14.79 45 19.05 41 15.98
SEP99 23 15.82 30 17.44 30 16.61
OCT99 30 17.38 33 18.79 36 17.31
NOV99 24 13.19 34 15.93 35 15.73
DEC99 23 11.59 30 13.94 31 12.37
JAN00 54 12.32 43 13.95 42 11.57
FEB00 44 17.14 59 20.45 88 15.88
MAR00 34 15.97 41 17.08 40 15.21
APR00 35 13.95 43 17.02 26 12.86
MAY00 20 13.02 47 16.47 28 13.50
JUN00 26 13.03 48 19.35 55 12.95
JUL00 24 14.00 35 18.73 37 16.23
AUG00 26 15.25 56 18.23 30 15.45
SEP00 37 17.95 112 23.13 238 22.96
OCT00 57 18.75 219 27.27 70 18.90
NOV00 44 14.05 45 16.40 29 13.82
DEC00 37 18.08 47 20.90 34 17.26
JAN01 68 16.74 109 25.23 93 18.65
FEB01 34 15.39 50 19.55 35 15.41
MAR01 30 13.44 38 15.98 28 12.46
APR01 36 17.10 84 23.23 30 15.25
MAY01 20 12.43 44 18.13 38 14.21
JUN01 18 12.45 56 25.80 48 17.53
JUL01 16 13.67 60 21.63 36 17.29
AUG01 23 15.97 37 18.24 48 17.05
SEP01 29 17.15 44 19.59 35 17.45
OCT01 33 17.08 34 19.65 157 25.36
NOV01 41 16.75 41 17.22 35 16.91
DEC01 234 29.69 237 44.58 147 27.20
JAN02 121 20.79 237 33.68 113 20.21
FEB02 34 11.96 34 14.57 30 12.88
MAR02 34 14.71 49 18.02 27 13.96
APR02 29 13.45 47 16.64 24 13.42
MAY02 19 12.17 35 16.56 20 12.82
JUN02 20 12.12 49 17.93 34 14.22
JUL02 18 12.80 75 20.89 40 18.54
AUG02 20 15.58 57 17.40 22 15.81
SEP02 44 19.28 232 25.38 29 17.77
OCT02 101 23.56 227 28.55 68 22.38
NOV02 70 20.33 140 22.35 48 20.98
DEC02 122 19.39 237 35.18 125 21.34
JAN03 69 18.92 155 25.03 67 17.81
FEB03 23 13.39 35 14.93 34 14.43
MAR03 108 15.94 49 16.08 21 13.09
APR03 22 12.44 27 14.48 23 11.72
MAY03 22 12.13 31 15.35 24 12.57
JUN03 20 12.36 43 19.90 32 12.67
JUL03 66 14.36 52 21.37 48 14.79
AUG03 19 14.47 181 21.95 30 15.08
SEP03 22 15.32 92 21.47 29 17.02
OCT03 22 14.73 40 17.58 34 15.46
NOV03 45 15.54 41 17.73 30 14.80
DEC03 48 17.48 42 19.13 36 16.58
JAN04 51 17.46 52 21.15 34 17.97
FEB04 36 15.41 52 20.46 51 16.61
MAR04 42 16.05 37 17.94 38 14.73
APR04 30 15.14 42 19.26 37 16.35
MAY04 31 13.85 93 19.76 30 15.59
JUN04 16 12.03 47 18.78 38 14.24
JUL04 17 12.37 53 18.81 37 15.24
AUG04 21 14.29 45 18.10 24 14.89
SEP04 23 15.88 29 18.50 22 15.68
OCT04 33 15.75 43 18.95 30 17.31
NOV04 47 15.83 66 20.18 41 17.17
DEC04 44 15.00 54 17.44 29 13.68
JAN05 32 14.32 55 17.45 46 15.26
FEB05 51 17.84 48 20.55 38 18.63
MAR05 31 13.60 31 14.77 27 12.76
APR05 32 16.78 43 19.87 27 14.20
MAY05 21 14.08 42 18.68 23 12.19
JUN05 37 15.52 52 22.27 32 15.33
JUL05 17 14.77 42 17.58 33 15.20
AUG05 41 17.69 63 21.31 41 16.56
SEP05 45 18.14 54 18.97 24 15.67
OCT05 37 17.94 31 19.02 23 15.75
NOV05 33 16.40 34 17.35 31 15.13
DEC05 41 19.61 45 21.71 37 18.77

Note: RPI data is reported twice daily on the Department of Environment and Conservation website http://www.environment.nsw.gov.au/air/airdata.htm. This graph shows the monthly maximum and monthly mean RPI.
Source: NSW Department of Environment and Conservation incorporating Environment Protection Authority.
Downloadable files: The data contained in the table on this page are available for download as a CSV file which can be imported into many software packages.
Copyright notice: This work is copyright NSW Department of Health, 2006. It may be reproduced in whole or in part, subject to the inclusion of an acknowledgement of the source. Commercial usage or sale is prohibited.
Suggested citation: Public Health Division, The Health of the people of New South Wales - Report of the Chief Health Officer. NSW Department of Health, Sydney, Available at: http://www.health.nsw.gov.au/public-health/chorep/env/env_airrpi.htm. Accessed (insert date of access).
Produced by: Epidemiology and Surveillance Branch, Public Health Division, NSW Department of Health.
Last updated on: 16 October 2006
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