HC Deb 04 March 1992 vol 205 cc162-4W
Mr. Tony Banks

To ask the Secretary of State for the Environment what information he has on data for air quality in Greater London, Birmingham, Manchester, Leeds and Bristol at similar periods in each year from 1980 to 1991.

Mr. Baldry

[holding answer 28 February 1992]: Data for the cities and years requested are available only for smoke and sulphur dioxide.

The 98-percentile daily mean smoke and sulphur dioxide concentrations for representative urban sites in Greater London, Birmingham, Manchester, Leeds and Bristol are given in the table. The values can be compared with the EC directive limits for smoke and sulphur dioxide of 213 and 350 B5;gm-3, respectively.

Smoke µgm-3 SO2 µgm-3 as 98-percentile daily mean
Birmingham
1980–81 51 156
1981–82 107 237

Smoke µgm-3 SO2 µgm-3 as 98-percentile daily mean
1982–83 59 115
1983–84 68 128
1984–85 55 123
1985–86 46 111
1986–87 58 87
1987–88 64 96
1988–89 64 180
1989–90 65 91
1990–91 65 93
Bristol
1980–81 66 115
1981–82 80 134
1982–83
1983–84
1984–85
1985–86 45 83
1986–87 44 90
1987–88 46 76
1988–89 55 49
1989–90 43 60
1990–91 29 43
Leeds
1980–81 51 110
1981–82 87 115
1982–83 78 125
1983–84 89 139
1984–85 87 158
1985–86 69 129
1986–87 68 98
1987–88 62 94
1988–89 71 82
1989–90 47 79
1990–91 54 101
London (Enfield)
1980–81 48 134
1981–82 56 138
1982–83 39 101
1983–84 49 113
1984–85 49 111
1985–86 41 97
1986–87 37 94
1987–88 49 137
1988–89 17 78
1989–90 28 90
1990–91 26 93
London (City)
1980–81 54 184
1981–82 67 212
1982–83 62 176
1983–84 58 95
1984–85 51 85
1985–86 53 117
1986–87 49 142
1987–88 49 97
1988–89 40 66
1989–90 41 64
1990–91 62 88
London (Croydon)
1980–81 63 144
1981–82 37 82
1982–83 19 58
1983–84 13 44
1984–85 16 42
1985–86 16 54
1986–87 47 84
1987–88 26 62
1988–89 20 62
1989–90 22 66
1990–91 32 66
Manchester

Smoke µgm-3 SO2µgm-3 as 98-percentile daily mean
1980–81 54 180
1981–82 98 250
1982–83 73 180
1983–84 84 181
1984–85 81 155
1985–86 66 122
1986–87 71 112
1987–88 75 151
1988–89 116 204
1989–90 91 126
1990–91 89 106