Drug consumption rises sharply in England during heat waves, bank holiday weekends and major events such as football matches and the Eurovision Song Contest, according to a large-scale wastewater study.Researchers analyzed more than 1,700 wastewater samples from 15 treatment plants across England in 2022, revealing clear weekly and seasonal trends. Cocaine was the most commonly detected drug, followed by heroin, ketamine, amphetamine and MDMA.While the increase was prominent over the weekend, cocaine use remained consistently high throughout the week.
event-driven surge
Drug use increased significantly during major events such as World Cup matches, summer heat waves and national celebrations such as the platinum jubilee of the late Queen.The Eurovision Song Contest turned out to be one of the most drug-filled nights, with a significant increase in the use of cocaine, ketamine, MDMA and methamphetamine.
Ketamine is a growing concern
Unlike other substances, ketamine use remained stable on weekdays and weekends, indicating regular consumption.Researchers found its levels at several sites higher than elsewhere in Europe, raising concerns about its growing popularity and risks.
Heatwave increases health risks
Experts warn that taking medications in hot weather increases the risk of dehydration, overheating and overdose. The study also highlighted the dangers of mixing substances, especially cocaine, with alcohol, which forms harmful compounds in the body.
Helping prepare emergency services
The findings could help authorities predict the duration of increased drug use and related emergencies.By identifying predictable spikes associated with events, emergency services can better prepare and public health messaging can be timed more effectively.
The effect of strictness is visible
The study also showed how large drug seizures can disrupt consumption. A major cocaine seizure in Southampton in March 2022 led to a significant decline in use in many cities for about a month.Authorities have warned that the increased use of ketamine, especially among people aged 16 to 24, is a growing concern. Often regarded as a “safe party drug”, it can cause serious long-term physical and psychological harm.
