The Hollinwell incident refers to an unexplained event in July 1980 when around 300 children suffered fainting attacks, nausea and other symptoms.
[2][3] A Fortean Times investigation reported that several horses were also taken ill, but admits that any link to the incident is conjecture.
Initial investigations by Ashfield District Council looked into a variety of possible causes, including contaminated water supplies, food poisoning, radio waves, and crop spraying of the nearby fields.
[3][5] Banned by the British government in 2000, tridemorph was discovered to be a harmful substance described by the World Health Organization (WHO) as "moderately hazardous".
[5] The official inquiry ruled that mass hysteria was the likely cause, with the symptoms experienced by the children demonstrating some of the characteristics of such an outbreak.
[8] On the 42nd anniversary of the incident at "the Fainting Field", a BBC local radio reporter created a podcast recounting the events, and investigating what could have happened by consulting a forensic science lecturer from Nottingham Trent University, who hypothesised that different cleaning products could have been used in a temporary toilet block.