Figure 7.15: Annual lead levels in Auckland and Christchurch, 1975–2005
Return to the point in the document where this figure is located.
Note:
µg/m3 = micrograms per cubic metre.
Data source: Auckland Regional Council, 2006a; Ministry for the Environment, 2006c.
Text description of figure
Year |
Penrose I, III & II |
Mount Eden I & II |
Queen Street I & II |
Packe St |
|---|---|---|---|---|
|
Average (µg/m3) |
Average (µg/m3) |
Average (µg/m3) |
Average (µg/m3) |
1964 |
0.4 |
|
|
|
1968 |
0.6 |
|
|
|
1970 |
0.6 |
|
|
|
1973 |
0.8 |
|
|
|
1974 |
0.8 |
|
|
|
1975 |
0.7 |
0.4 |
1.6 |
|
1976 |
0.8 |
0.5 |
2.4 |
|
1977 |
0.5 |
0.3 |
1.6 |
|
1978 |
0.8 |
0.5 |
2.2 |
|
1979 |
0.6 |
0.4 |
1.6 |
|
1980 |
0.5 |
0.4 |
1.7 |
|
1981 |
0.6 |
0.4 |
1.8 |
|
1982 |
0.6 |
0.3 |
1.6 |
|
1983 |
0.7 |
0.5 |
|
|
1984 |
0.7 |
0.4 |
1.4 |
|
1985 |
0.8 |
0.4 |
1.4 |
|
1986 |
0.7 |
0.4 |
1.4 |
|
1987 |
0.5 |
0.3 |
1.0 |
|
1988 |
0.4 |
0.3 |
0.8 |
|
1989 |
0.5 |
0.2 |
0.7 |
|
1990 |
0.4 |
0.3 |
0.7 |
|
1991 |
0.3 |
0.2 |
0.5 |
|
1992 |
0.3 |
0.2 |
0.5 |
|
1993 |
0.2 |
0.1 |
0.3 |
|
1994 |
0.18 |
0.12 |
0.29 |
|
1995 |
0.17 |
0.10 |
0.23 |
|
1996 |
0.05 |
0.03 |
0.06 |
0.062 |
1997 |
0.03 |
0.02 |
0.04 |
0.071 |
1998 |
0.03 |
0.02 |
0.04 |
0.055 |
1999 |
0.02 |
0.03 |
0.02 |
0.076 |
2000 |
0.02 |
0.02 |
|
0.053 |
2001 |
0.01 |
0.01 |
|
0.005 |
2002 |
0.01 |
0.05 |
|
0.052 |
2003 |
0.01 |
0.01 |
|
|
2004 |
|
|
|
|
2005 |
0.01 |
|
|
|
