One in three Greek believes that they are being sprayed by chemical or biological agents from a high altitude, according to a new opinion poll.

The Metron Analysis survey for the Sunday edition of Ethnos newspaper suggested that 33.3 percent of respondents believe in the so-called “chemtrails”.

The issue has been a favorite topic of anti-bailout Independent Greeks, forcing the Greek air force to issue a statement last year insisting that no such spraying was taking place.

However the poll indicates that only 6.1 percent of those who believe in chemtrails support the right-wing party led by Panos Kammenos. In contrast, 19.2 percent back SYRIZA, 15.3 percent Golden Dawn and 10.6 percent New Democracy.

Questions about the trails left in the sky have persisted since the 1990s, mainly in the USA. Authorities have responded to a variety of theories by insisting that the vapor trails are merely condensation left behind by airplanes.