To ask the Secretary of State for the Environment if he will give figures for each region's estimated methane emissions in 1988 by emission source consistent with the United Kingdom figures given in table 2·12 of the latest "Digest of Environmental Protection and Water Statistics."
This information is not available.
To ask the Secretary of State for the Environment (1) if he will give figures for nitrogen dioxide concentrations recorded at each of Warren Spring laboratory's 11 sites in the latest available year;
(2) if he will give the number of occasions hourly average tropospheric ozone concentrations in excess of 6Oppb were recorded by each of his Department's 19 sites in the latest available year;
(3) if he will give figures on the acidity of rain recorded at each of his Department's 32 sites for the latest available year.
United Kingdom monitoring network data for 1989 are given in tables A (NO2), B (ozone) and C (acidity of rain). Of the NO2sites, all except Cromwell road and Stevenage are in the EC NO2directive monitoring network set up to meet the requirements of EC directive 85/203/EEC.WSL also operates three rural NO
2 monitoring sites.
Results for a full year are not yet available. Measurements made so far indicate concentrations are of the order of 10 to 15 parts per billion by volume (ppb) annual average and 30 to 50 ppb 98th percentile of hourly averages.
The locations of the sites are described in the digest of environmental protection statistics, No. 12, 1989 and in the second report of the United Kingdom review group on acid rain, 1987, copies of which have been placed in the Library of the House.
Table A—NO2:
| ||
Site
| Annual average
| 98th percentile |
(ppb)
| (ppb)
| |
| Central London | 37 | 81 |
| West London | 42 | 112 |
| Glasgow | 26 | 61 |
| Manchester | 25 | 61 |
| Walsall | 29 | 58 |
| Billingham | 21 | 57 |
| Cromwell Road | 43 | 100 |
| Stevenage | 24 | 55 |
Table B—ozone:
| |
Site
| Exceedances of 60 ppb hourly means
|
| Stevenage | 85 |
| Central London | 74 |
| Sibton | 212 |
| Aston Hill | 143 |
| Lullington Heath | 401 |
| Strath Vaich | 28 |
| High Muffles | 184 |
| Lough Navar | 74 |
| Yarder Wood | 360 |
| Ladybower | 173 |
| Harwell | 170 |
| Bottesford | 82 |
| Bush | 63 |
| Eskdalemuir | 99 |
| Great Dun Fell | 204 |
| Glazebury | 129 |
Table C—acidity of rain—acidity of deposited rain adjusted for rainfall amount
| |
Site
| Precipitation weighted mean acidity (microgramme equivalents per litre)
|
| Achanarras | 25 |
| Strath Vaigh Dam | 13 |
| River Mharcaidh | 20 |
| Glen Dye | 36 |
| Balquhidder | 20 |
| Whiteadder | 35 |
Site
| Precipitation weighted mean acidity (microgramme equivalents per litre)
|
| Eskdalemuir | 20 |
| Redesdale | 32 |
| Loch Dee | 15 |
| Cow Green Reservoir | 23 |
| Bannisdale | 24 |
| High Muffles | 55 |
| Thorganby | 84 |
| Jenny Hurn | 64 |
| Driby | 47 |
| Wardlow Hay Cop | 37 |
| Beddgelert | 15 |
| Bottesford | 48 |
| Plynlimon | 14 |
| Stoke Ferry | 40 |
| Preston Montford | 36 |
| Llyn Brianne | 19 |
| Tycanol Wood | 18 |
| Woburn | 37 |
| Flatford Mill | 35 |
| Compton | 25 |
| Barcombe Mills | 15 |
| Yarner Wood | 20 |
| Goonhilly | 19 |
| Lough Navar | 10 |
| Hillsborough Forest | 13 |
| Isle of Man | 24 |
To ask the Secretary of State for the Environment if he will give figures for each region's estimated carbon dioxide emissions in 1988 by emission source consistent with the United Kingdom figures given in table 2.11 of the latest "Digest of Environmental Protection and Water Statistics".
This information is not available.
To ask the Secretary of State for the Environment if he will give figures for sulphur dioxide concentrations in each region in the latest available year.
The basic urban monitoring network data, for April 1988 to March 1989, analysed by region, are given in the table:
| Region | Number of sites with valid results | Concentration—microgrammes per standard cubic metre of air | |
| SO2 | Smoke | ||
| Scotland | 13 | 27 | 12 |
| North | 12 | 30 | 16 |
| North West | 25 | 39 | 14 |
| Yorkshire-Humberside | 21 | 43 | 21 |
| East Midlands | 11 | 43 | 20 |
| West Midlands | 8 | 37 | 20 |
| Wales | 6 | 19 | 11 |
| East Anglia | 2 | 28 | 12 |
| London | 11 | 41 | 17 |
| South East | 9 | 31 | 12 |
| South West | 5 | 23 | 11 |
| Northern Ireland | 4 | 46 | 27 |
| United Kingdom | 126 | 36 | 16 |
To ask the Secretary of State for the Environment if he will give figures for each region's estimated nitrogen oxides emissions in 1988 by emission source consistent with the United Kingdom figures given in table 2.6 of the latest "Digest of Environmental Protection and Water Statistics."
Estimates of emissions of nitrogen oxides are not made by region.
To ask the Secretary of State for the Environment if he will give figures for each region's estimated sulphur dioxide emissions in 1988 by emission source consistent with the United Kingdom figures given In table 2.3 of the latest "Digest of Environmental Protection and Water Statistics."
Estimates of emissions of sulphur dioxide are not made by region.
To ask the Secretary of State for the Environment if he will give figures for each region and each county for the estimated (a) acidity of rain and (b) wet deposited acidity in 1988, consistent with figures given in tables 2.5 and 2.6 of the latest "Digest of Environmental Protection and Water Statistics."
This information is not available.