HC Deb 15 June 1998 vol 314 cc48-9W
Mr. Baker

To ask the Secretary of State for the Environment, Transport and the Regions if he will list the occasions since 1 January 1997 when the National Air Quality Standard for ozone was exceeded at Lullington Heath, giving the maximum hourly means reached for each such occasion. [46076]

Angela Eagle

There have been 719 exceedences of the National Air Quality Standard for ozone on 81 days (listed below) at Lullington Heath since January 1997.

Day Maximum 8-hour running mean (ppb) Maximum hour (ppb) Number of exceedences on that day
11 March 1997 60 65 8
1 April 1997 59 64 8
2 April 1997 65 79 8
6 April 1997 50 53 1
9 April 1997 59 69 9
10 April 1997 68 74 22
11 April 1997 53 71 1
13 April 1997 51 55 5
21 April 1997 54 57 8
24 April 1997 56 59 8
25 April 1997 51 58 2
1 May 1997 57 62 8
2 May 1997 73 77 13
3 May 1997 65 68 14
12 May 1997 51 54 3
16 May 1997 55 65 6
17 May 1997 60 65 9
24 May 1997 50 53 4
25 May 1997 57 59 10
26 May 1997 58 61 10
27 May 1997 55 61 3
29 May 1997 59 66 9
30 May 1997 52 58 3
31 May 1997 58 61 10
1 June 1997 55 57 10
2 June 1997 56 61 7
3 June 1997 58 63 10
4 June 1997 54 58 9
5 June 1997 64 70 13
6 June 1997 50 59 4
10 June 1997 73 78 10
11 June 1997 65 52 6
16 June 1997 50 57 2
18 June 1997 55 58 9
19 June 1997 50 57 1
5 July 1997 50 57 2
7 July 1997 54 59 8
8 July 1997 56 66 5
11 July 1997 57 61 8
12 July 1997 56 58 11
19 July 1997 54 63 7
20 July 1997 51 54 4
22 July 1997 54 68 3
23 July 1997 67 81 24
24 July 1997 51 56 4
7 August 1997 53 57 5
8 August 1997 63 69 11
9 August 1997 61 77 8
10 August 1997 95 110 24
11 August 1997 79 73 12
12 August 1997 50 60 3
16 August 1997 67 74 9
17 August 1997 72 75 15
18 August 1997 81 99 20
19 August 1997 85 94 24

Day Maximum 8-hour running mean (ppb) Maximum hour (ppb) Number of exceedences on that day
20 August 1997 77 84 24
21 August 1997 65 77 15
11 September 1997 53 59 6
16 September 1997 56 59 10
17 September 1997 54 58 6
18 September 1997 53 64 4
6 April 1998 51 53 6
22 April 1998 56 63 7
23 April 1998 51 63 1
4 May 1998 51 54 2
8 May 1998 64 69 11
9 May 1998 57 58 9
10 May 1998 55 63 8
11 May 1998 62 65 6
12 May 1998 59 64 7
13 May 1998 84 98 15
14 May 1998 81 76 18
15 May 1998 79 86 11
16 May 1998 62 66 14
17 May 1998 56 61 13
18 May 1998 54 57 9
19 May 1998 56 59 22
20 May 1998 58 63 9
29 May 1998 51 55 4
30 May 1998 72 77 11
31 May 1998 52 68 1

Forward to