Figure 1

Figure 2

Figure 3

Compounds detected in 18 pooled urine samples at the Split Ultra music festival in 2016 and 2017 by festival days
| Group | Substances | Substance class | 2016 | 2017 | ||||
|---|---|---|---|---|---|---|---|---|
| Day | Day | |||||||
| 1 | 2 | 3 | 1 | 2 | 3 | |||
| Classic (25) | Nicotine | Stimulant | + | + | + | + | + | + |
| Cotinine | Stimulant | + | + | + | + | + | + | |
| Theobromine | Stimulant | + | + | + | + | + | + | |
| Caffeine | Stimulant | + | + | + | + | + | + | |
| Amphetamine | Stimulant | + | + | |||||
| MDEA (3,4-methylenedioxy-N-ethylamphetamine) | Stimulant | + | + | |||||
| HMMA (4-hydroxy-3-methoxy-methamphetamine) | Stimulant | + | ||||||
| MDMA (3,4-methylenedioxy-methamphetamine) | Stimulant | + | + | + | + | + | ||
| MDDMA (3,4-methylenedioxy-N, N-dimethylamphetamine) | Stimulant | + | + | |||||
| 3,4-MDA (3,4-methylenedioxyamphetamine) | Stimulant | + | + | + | + | |||
| pMMA (para-methoxyamphetamine) | Stimulant | + | ||||||
| Propylhexedrine | Stimulant | + | + | + | + | |||
| Cocaine | Stimulant | + | + | |||||
| Ecgonine methyl estere | Stimulant | + | + | + | ||||
| Cocaethylene | Stimulant | + | ||||||
| Butabarbital | Hypnotic | + | + | |||||
| Pentobarbital | Hypnotic | + | + | + | ||||
| D9-THC (delta-9-tetrahydrocannabinol) | Hallucinogen | + | + | |||||
| Methadone | Opiate | + | + | + | ||||
| Oxymorphone | Opioid analgesic | + | ||||||
| Tramadol | Opioid analgesic | + | + | |||||
| Phenacetine | Analgesic | + | ||||||
| Benzocaine | Local anesthetic | + | ||||||
| Paracetamol | Antipyretic | + | + | + | + | + | + | |
| Ibuprofen | Nonsteroidal anti-inflammatory drug | + | + | + | + | + | + | |
| NPS (19) | Bk-MPA (β-keto-methiopropamine) | Cathinone | + | + | ||||
| 3,4-dimethylmethcathinone | Cathinone | + | + | + | + | |||
| 3,4-methylenedioxyphenyl-2-propanone | Cathinone | + | ||||||
| Methedrone | Cathinone | + | ||||||
| Mephedrone | Cathinone | + | + | |||||
| Methylone | Cathinone | + | ||||||
| Buphedrone | Cathinone | + | ||||||
| Phenetylamine | Phenethylamine | + | + | |||||
| 3-fluoromethamphetamine | Phenethylamine | + | + | |||||
| 4-fluoromethamphetamine | Phenethylamine | + | + | + | ||||
| Bk-MBDB (β-keto-N-methylbenzodioxolylbutanamine) metabolite 3-OH-4-MeO | Phenethylamine | + | + | |||||
| N-ethyl-N-hexylamphetamine | Phenethylamine | + | + | + | ||||
| N-hexyl, N-methylbezylamine | Phenethylamine | + | + | |||||
| Ketamine | Anesthetic | + | ||||||
| 1-benzylpiperazine | Piperazine | + | + | |||||
| 5 MeO DMT (5-methoxy-N,N-dimethyltryptamine) | Tryptamine | + | + | |||||
| Psilocin | Tryptamine alkaloid | + | ||||||
| N-ethyl-1,2-diphenylethylamine | Hallucinogen | + | ||||||
| Salvinorin A | Hallucinogen | + | ||||||
Compounds detected in 12 pooled urine samples at the Split Ultra music festival in 2018 by festival days
| Group | Substances | Substance class | Day | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | |||||||||||||
| Sample | ||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |||
| Classic (14) | Nicotine | Stimulant | + | + | + | + | + | + | + | + | + | + | + | + |
| Cotinine | Stimulant | + | + | + | + | + | + | + | + | + | + | + | + | |
| Theobromine | Stimulant | + | + | + | + | + | + | + | + | + | + | + | + | |
| Caffeine | Stimulant | + | + | + | + | + | + | + | + | + | + | + | + | |
| HMMA (4-hydroxy-3-methoxy-methamphetamine) | Stimulant | + | + | + | ||||||||||
| MDMA (3,4-methylenedioxy-methamphetamine) | Stimulant | + | + | + | ||||||||||
| MDDMA (3,4-Methylenedioxy-N,N-dimethylamphetamine) | Stimulant | + | ||||||||||||
| 3,4-MDA (3,4-methylenedioxyamphetamine) | Stimulant | + | ||||||||||||
| Cocaine | Stimulant | + | + | + | + | + | + | |||||||
| Ecgonine methyl ester | Stimulant | + | + | + | + | + | ||||||||
| Cocaethylene | Stimulant | + | ||||||||||||
| Mepivacaine | anaesthetic Local | + | + | |||||||||||
| Paracetamol | Antipyretic | + | ||||||||||||
| Ibuprofen | Nonsteroidal anti-inflammatory drug | + | + | + | + | + | + | + | + | + | + | |||
| NPS (2) | Methcathinone | Cathinone | + | + | + | + | + | |||||||
| 4-fluorometh-amphetamine | Phenethy1amine | + | ||||||||||||
Location and time of urine sampling at the Split Ultra festival by day
| 2016 | Day 1 Friday/Saturday | Day 2 Saturday/Sunday (13 pm – 5 am) | Day 3 Sunday/Monday (17 pm – 5 am) | |
|---|---|---|---|---|
| Collection time | 1 am | 2 pm | 6 am | 6 am |
| Location 1 | sample 1a | sample 2a | sample 3a | sample 4a |
| Location 2 | sample 1 | sample 2 | sample 3 | sample 4 |
| 2017 | Day 1 Friday/Saturday (5 pm – 5 am) | Day 2 Saturday/Sunday (5 pm – 5 am) | Day 3 Sunday/Monday (5 pm – 5 am) | |
| Collection time | 2 am | 2 am | 2 am | |
| Location 1 | sample 1 | sample 5 | sample 8 | |
| Location 2 | sample 2 | sample 6 | sample 9 | |
| Location 3 | sample 3 | sample 7 | sample 10 | |
| sample 4 | ||||
| 2018 | Day 1 Friday/Saturday | Day 2 Saturday/Sunday | ||
| Collection time | 4 am | 4 am | ||
| Location 1 | samples 1, 2, 3 | - | ||
| Location 2 | samples 4, 5 | samples 7, 8, 9 | ||
| Location 3 | sample 6 | samples 10, 11 | ||
| Location 4 | - | sample 12 | ||