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Written Question
Military Aircraft: Exhaust Emissions
Wednesday 24th June 2026

Asked by: Lincoln Jopp (Conservative - Spelthorne)

Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what information his Department holds on whether studies have been done on potential links between military aircraft exhaust emissions and rare cancers.

Answered by Calvin Bailey - Parliamentary Under-Secretary (Ministry of Defence) (Minister for Veterans and People)

Two studies have been commissioned by the Ministry of Defence (MOD) to examine the potential links between military aircraft exhaust emissions and rare cancers.

In 2022, the Institute of Naval Medicine examined if there were any causal links between exposure to benzene from Sea King helicopter exhaust and the incidence of leiomyosarcoma and multiple myeloma.

In 2024, the Independent Medical Expert Group was commissioned to assess whether there is a causal link between helicopter exhaust emissions and rare cancers.

Both reports found that the available evidence did not meet internationally accepted causation criteria.

Division Vote (Commons)
23 Jun 2026 - Defence Spending and Readiness - View Vote Context
Lincoln Jopp (Con) voted Aye - in line with the party majority and against the House
One of 96 Conservative Aye votes vs 0 Conservative No votes
Vote Tally: Ayes - 108 Noes - 307
Division Vote (Commons)
23 Jun 2026 - Puberty Blockers - View Vote Context
Lincoln Jopp (Con) voted Aye - in line with the party majority and against the House
One of 98 Conservative Aye votes vs 0 Conservative No votes
Vote Tally: Ayes - 112 Noes - 283
Division Vote (Commons)
23 Jun 2026 - Defence Spending and Readiness - View Vote Context
Lincoln Jopp (Con) voted No - in line with the party majority and against the House
One of 98 Conservative No votes vs 0 Conservative Aye votes
Vote Tally: Ayes - 294 Noes - 110
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Defence Spending and Readiness

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Speech in Commons Chamber - Tue 23 Jun 2026
Defence Spending and Readiness

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Lincoln Jopp - View Speech

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Speech in Commons Chamber - Tue 23 Jun 2026
Defence Spending and Readiness

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Speech in Commons Chamber - Tue 23 Jun 2026
Defence Spending and Readiness

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Speech in Commons Chamber - Tue 23 Jun 2026
Defence Spending and Readiness

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