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Aviation: Exhaust Emissions

Volume 460: debated on Wednesday 9 May 2007

To ask the Secretary of State for Transport pursuant to the answer of 1 May 2007, Official Report, column 1527W, on aviation exhaust emissions, whether he has made any assessment of the potential effects on health of contrails from aircraft. (136145)

Contrails are ice crystal clouds that form at high altitudes under certain atmospheric conditions. They are initiated by exhaust products and the disturbance caused by aircraft. The Department has sponsored research into these emissions including a major international scientific meeting last year which presented significant new research on the subject: