The claim
「(ケムトレイル)政府が飛行機雲で有害物質を空から散布している」は誤り
Original review summary
The review says the visible trails are contrails formed by aircraft exhaust, consisting mainly of water (ice crystals), and reports no resulting health harm. It also explains that contrails can persist in humid conditions and may form after a delay, rather than always disappearing immediately.[S1]
Research date:
Sources and attribution
- [S1] 日本ファクトチェックセンター original review
Original review · Retrieved October 16, 2026