§ Ms WalleyTo ask the Secretary of State for Transport if he will list those sites where he is currently monitoring vehicle pollution stating in each case(a) what monitoring he is undertaking and (b) whether PM10 is counted.
§ Mr. NorrisThis is an operational matter for the Highways Agency. I have asked its chief executive to write to the hon. Member.
Letter from Lawrie Haynes to Ms Joan Walley, dated 14 March 1995:
The Minister for Local Transport and Road Safety, Steven Norris. has asked me to write to you in reply to your recent Parliamentary Question asking the Secretary of State for Transport if he will list those sites where he is currently monitoring vehicle pollution stating in each case (a) what monitoring he is undertaking and (b) whether PM10 is counted.We do not routinely monitor vehicle pollution but the Highways Agency has a number of monitoring stations in operation either for research purposes to aid the development of air quality techniques or to inform environmental assessment of specific highway proposals where appropriate. For most situations involving road schemes we use mathematical modelling to assess pollution levels. Where the modelling techniques cannot adequately reflect the characteristics of a particular location monitoring work is undertaken.The table below contains our current active sites.
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Road name Location Emissions monitored M4 Theale Carbon Monoxide Nitric Oxide Nitrogen Dioxide Total Oxides of Nitrogen Ozone Total Hydrocarbons Non-Methane Hydrocarbons Methane Range of Poly-aromatic Hydrocarbons
Road name Location Emissions monitored Victoria Street London Carbon Monoxide Nitric Oxide Nitrogen Dioxide Total Oxides of Nitrogen Ozone Total Hydrocarbons Non-Methane Hydrocarbons Methane Range of Poly-Aromatic Hydrocarbons Benzene Toluene Xylene Range of Carbonyl Compounds M4 London Between Junctions 3 and 4B Carbon Monoxide Nitric Oxide Nitrogen Dioxide Total Oxides of Nitrogen PM10 Benzene Tolluene Xylene M4 London Junction 4 Carbon Monoxide Nitric Oxide Nitrogen Dioxide Total Oxides of Nitrogen M62 Manchester East Junction 17 Carbon Monoxide Nitric Oxide Nitrogen Dioxide Total Oxides of Nitrogen M2 Kent Junction 3 Area Carbon Monoxide Nitric Oxide Nitrogen Dioxide Total Oxides of Nitrogen Benzene Tolluene At present PM10 is measured at one location on the M4 but our intention is to commence monitoring of this emission at new sites on the M62 (Manchester) and the M25 (Surrey) shortly.