Written question asked by Bill Olner (Labour), in the House of Commons. It was due for an answer on Wednesday, 19 March 1997. It was answered by James Clappison (Conservative) on Wednesday, 19 March 1997 on behalf of the Department of the Environment.

Dept of the Environment

Question: If he will list the mean (a) winter season and (b) annual concentrations of nitrogen dioxide at each national air quality monitoring site in each year since 1986-87, or the first year when the site commenced monitoring. - Inc ref to and fact that copy of the requested information has been placed in the Library of the House; "Digest of Environmental Statistics No.18, 1996" and "Air Pollution in the United Kingdom: 1995".

Answer: Mr. Olner: To ask the Secretary of State for the Environment if he will list the mean (a) winter season and (b) annual concentrations of nitrogen dioxide at each national air quality monitoring site in each year since 1986-87, or the first year when the site commenced monitoring. [20276] Mr. Clappison: A copy of the requested information, for national automatic air quality monitoring sites, has been placed in the Library of the House. Statistical information on air quality, including nitrogen dioxide, is also available in the Department of the Environment's "Digest of Environmental Statistics No. 18, 1996" and "Air Pollution in the United Kingdom: 1995" published on behalf of the Department by the National Environmental Technology Centre. Copies of both reports have been placed in the Library of the House of Commons.

Secondary information