Table 2.

Mass loading of illicit drugs and their metabolites (mg/d) into two wastewater treatment plants in Western Kentucky, USA.

	Mean Mass Loading ± SD at WWTP_A			Mean Mass Loading ± SD at WWTP_B
Analytes	Independence Day Observation Week	Typical Week	First Week of Semester	Independence Day Observation Week	Typical Week	Solar Eclipse Observation Week (n=4)
Stimulants
Cocaine (CCN)	1720 ± 948	1580 ± 772	1480 ± 779	5120 ± 1020	3680 ± 117	3730 ± 836
Benzoylecgonine (BEG)	4880 ± 1620	3720 ± 791	3930 ± 1660	23500 ± 7210	21100 ± 3340	21000 ± 6390
Norcocaine (NCCN)	1000 ± 894	448 ± 462	192 ± 129	94.9 ± 101	255 ± 60.7	142 ± 72.1
Cocaethylene (CCE)	797 ± 646	308 ± 301	159 ± 145	258 ± 218	209 ± 92.6	128 ± 52.6
Amphetamine (APT)	3320 ± 1130	3160 ± 462	3060 ± 1350	5920 ± 1570	6900 ± 949	8780 ± 1510
Methamphetamine (MAPT)	13600 ± 5550	10600 ± 1800	11400 ± 2700	34800 ± 12100	33200 ± 4250	31500 ± 4480
Opioids/Narcotics
Heroin (HER)	41200 ± 22700	8990 ± 255	N/A	10300 ± 6160	N/A	N/A
6-acetyl morphine (AMPH)	11100 ± 12200	4640 ± 6350	268 ± 298	1120 ± 1300	78.2 ± 121	47.4 ± 32.2
Morphine (MPH)	1800 ± 727	1550 ± 452	1340 ± 409	1910 ± 840	2120 ± 364	2400 ± 367
Methadone (MTD)	1150 ± 537	647 ± 197	527 ± 146	809 ± 284	987 ± 94.3	1070 ± 203
EDDP	3790 ± 1480	2640 ± 1090	2040 ± 440	4230 ± 1380	4580 ± 506	4330 ± 996
Hallucinogens
MDMA	874 ± 413	306 ± 343	154 ± 145	N/A	N/A	126 ± 61.3
MDEA	706 ± 39.9	274 ± 304	117 ± 125	N/A	N/A	N/A
MDA	1020 ± 673	379 ± 413	119 ± 97.8	126 ± 104	N/A	N/A
THC	379 ± 410	312 ± 139	N/A	190 ± 223	799 ± 1270	1330 ± 1590
THCA	2540 ± 2820	6860 ± 1881	7675 ± 3880	14700 ± 5400	11200 ± 1860	14500 ± 8150
THC-OH	27600 ± 56000	16000 ± 7090	11000 ± 7980	2500 ± 1540	3860 ± 1450	4980 ± 2810