Pharmaceuticals, hormones, and other wastewater ... · September 2, 2010. Outline ... CH. 3. COOH H...
Transcript of Pharmaceuticals, hormones, and other wastewater ... · September 2, 2010. Outline ... CH. 3. COOH H...
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Ralph HaefnerU.S. Geological Survey
Ohio Water Science CenterColumbus, Ohio
OWEA Plant Operations & Laboratory Analysis Specialty WorkshopSeptember 2, 2010
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Outline Background Results of USGS National Surveys Ecological and Human Health Significance Analytical Methods Regulatory Implications National Studies of Drinking Water Studies of Drinking Water in Ohio What Have We Learned
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Acknowledgements Toxics Substances Hydrology USGS Ohio Water Science Center Team
Donna Francy Greg Koltun John Tertuliani Dennis Finnegan Stephanie Janosy
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Why the recent interest?
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Drugs are not the only concern!
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Drugs are not the only concern!
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USGS interest in pharmaceuticals began over 10 years ago…
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Researchers looking for a pesticide in Swiss lakes and the North Sea and found clofibric acid…
Clofibric Acid(Cholesterol Drug)
Cl O
CH3CH3
COOH
Mecoprop(Herbicide)
Cl O
CH3
COOH
H
CH3
(Buser and others, 1998)
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• Human Drugs• Vet. Drugs • Antibiotics• Hormones• Steroids• Detergents • Plastics
• Antioxidants• Fire retardants• Disinfectants• Fumigants• Fragrances• Insecticides/
Repellants
Organic Wastewater Compounds (OWCs)
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• WWTPs• CSOs• Septic Systems• Industry• Landfills• Water Reuse
Human Waste Pathways
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• Waste Lagoons• Land Application• Processing• Aquaculture
Animal Waste Pathways
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Stream Reconnaissance 1999-2000
(Kolpin and others, 2002)
USGS National Stream Survey Are OWCs present in rivers?
Chemicals we use every day can be concentrated in various waste streams and enter our waters at levels that may be an environmental health concern.
139 streams in 30 states
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USGS National Stream Survey One or more chemicals were detected in 80% of
the 139 streams sampled 82 of the 95 chemicals were detected at least
once Chemicals generally found at very low
concentrations (less than 1 part per billion) Mixtures of chemicals were common
75% of the streams had more than one 50% had 7 or more 34% had 10 or more
12(Kolpin and others, 2002)
How much exactly is one part per billion? - one drop in a railroad tanker car- one second over 32 years- one hamburger in a chain of hamburgers circling the earth at the equator 2.5 times
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Frequently Detected Compounds
13(Kolpin and others, 2002)
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Surface (139) Ground (47)
SW versus GW
(Kolpin and others, 2002; Barnes and others, 2008)
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Water (30) Sediment (36)
Don’t look just in the water!
(Furlong and others, 2003)
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If OWC concentrations are so low, why all the fuss?
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Detergents
Food
Personal CareProducts
Pesticides
Pharmaceuticals
InertSprays
Industrial / AgChemicals
Plastics
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• Toxicity• Uptake by organisms• Antibiotic resistance of
pathogens• Endocrine disruption
Ecological Concerns
Boxall and others (2006); Kinney and others (2005 and 2008)
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Antibiotic Resistance
• More than 50 million pounds of antibiotics are produced annually in the U.S.
• 25 to 75 percent of an antibiotic taken can be excreted unaltered
• Many antibiotics are not completely removed during secondary wastewater treatment
• Bacteria exposed to non-lethal concentrations of antibiotics can develop resistance
18(Kolpin and others, 2002)
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Antibiotic Resistance
Most frequently detected antibiotics in water
(% of samples)• Trimethoprim 27.4• Erythromycin 21.5• Lincomycin 19.2• Sulfamethoxazole 19.0• Tylosin (cattle and swine) 13.5
19(Kolpin and others, 2002)
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Endocrine Disruption • Natural and synthetic compounds
mimic or block the action of natural hormones that may cause health effects at the parts per trillion range
• Potential health effects include• reproductive abnormalities• behavioral problems• impaired immune functions• various cancers
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Field sample collection
Solid-phase extraction and isolation
• High Performance Liquid Chromatography / Mass Spectrometry• Gas chromatography / Mass Spectrometry
Analytical Methods
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Analytical Methods
67 Wastewater IndicatorsFragrances, detergents, dyes, fuels, disinfectants, flame retardants, pesticides, herbicides, and 3 pharmaceuticals (menthol, cotinine, and caffeine)
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USGS PUBLISHED METHODSolid-phase extraction, gas chromatography / mass spectrometry
RL range of 0.08 to 5 µg/L
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Analytical Methods
Acetaminophen, albuterol(asthma), caffeine, codeine, cotinine, 2 antibiotics, other drugs
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USGS PUBLISHED METHODSolid-phase extraction, high performance liquid chromatography / mass spectrometry
RL range of 0.026 to 0.1 µg/L
18 Human Pharmaceuticals
Cahill and others (2004)
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Analytical Methods
Fluroquinolines, macrolides (erythromycin), sulfonamides, tetracyclines, 2 pharmaceuticals (carbamazepine and ibuprofen), degradates, and other antibiotics
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USGS PUBLISHED METHODLiquid chromatography / mass spectrometry
RL range of 0.005 to 0.1 mg/L
Meyer and others (2007)
33 Human and Veterinary Antibiotics
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Analytical Methods
19 Natural and Synthetic HormonesEstradiol, cholesterol, progesterone, testosterone, androsterone (anabolic steroid), mestranol (oral contraceptives), equilin (equine estrogen and hormone replacement)
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USGS RESEARCH (CUSTOM) METHODGas chromatography / tandem mass spectrometry
RL range is 0.8 to 4 ng/L
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Are these compounds regulated?
Out of the 137 compounds included in the previous analytical schedules, only three are regulated
USEPA Maximum Contaminant Levels• 1, 4-Dichlorobenzene (fumigant) @ 75 µg/L• Benzo(a)pyrene (PAH from incomplete combustion) @ 0.2 µg/L• Tetrachloroethylene (dry cleaning/solvent) @ 5 µg/L
USGS Health Based Screening Levels (HBSL)• Bisphenol A (plastics) @ 400 µg/L
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USGS National Recon II: Untreated Drinking Water Sources
27Focazio and others (2008)
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USGS National Recon II
• 100 wastewater, pharmaceuticals, and antibiotic compounds analyzed
• 63 detected at least once; however, 36 pharmaceuticals/antibiotics were not detected in any water sample
• Median of 4 compounds were detected at every site
• Concentrations were typically in the sub-µg/L range
28Focazio and others (2008)
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NJ Study of Drinking Water
Objective: Identify the treatment steps that are most effective at reducing concentrations of OWCs
Approach: Obtain 12 samples at each of 6 sites in a drinking-water plant in a heavily developed drainage basin
29Stackelberg and others (2007)
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NJ Drinking Water Plant
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finished water
source water
2nd disinfection (NaClO) (chlorine residual ~1.2 mg/L)
sand/GAC filtration(tr = 1.5 – 3 min)
disinfection (NaClO; tr = 200-300 min)
clarification (FeCL3 @ 20-45 mg/L; tr = 15-20 min)
source & recycled water (H2SO4: pH 4.5-5.5)
screening
Filter backwash solids
decant
Site 6
Site 5
Site 4
Site 3
Site 2
Site 1
sludge
Stackelberg and others (2007)
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24-hour composite water samples
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Influent
Metering pump
to composite sample
NJ Drinking Water Plant
Stackelberg and others (2007)
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Cumulative reduction in average concentration through treatment processes
0
10
20
30
40
50
60
clarification disinfection GAC filtration
Red
uctio
n in
Ave
rage
C
once
ntra
tion
(%)
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NJ Drinking Water Plant
Stackelberg and others (2007)
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GAC filtration
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NJ Drinking Water Plant
Stackelberg and others (2007)
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Ohio StudiesGreat and Little Miami Rivers
(NAWQA)
Sampled 29 small streams with varied land use, a mixed-land-use river (GMR at Hamilton), and 25 urban wells
Analyzed for wastewater & pharmaceutical compounds
34Rowe and others (2004)
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Ohio StudiesGreat and Little Miami Rivers (NAWQA)
Rowe and others (2004)
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14 surface-water sites
1 groundwater siteTroy MI44
Greenville Ck Wildcat Honey Ck at MCPDStillwater Boyer Lost CreekGMR Indian Lake Stillwater SiebenthalerBockengahelas Creek Upper Great Miami R Huber HtsStillwater Covington Tawawa CreekGreenville Cr Croft Mill Loramie Ck Fort LoramieStillwater Horseshoe Bend Loramie Ck at Lockington Dam
36Ekberg, Miami Conservancy District, 2005-2007
Ohio StudiesGreat Miami River Basin
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Detections of Acetaminophen Caffeine Carbamazepine DEET Esterone Estradiol Fluoxetine (Prozac) Gemfibrozil
Ibuprofen Progesterone Sulfamethoxazole Testosterone Triclosan Trimethoprim Triphenylphosphate Tris (1,3-Dichloropropyl-2) Phosphate (TDCPP)
37Ekberg, Miami Conservancy District, 2005-2007
Ohio StudiesGreat Miami River Basin
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Ohio StudiesCity of Columbus and the Upper Scioto River Basin
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Objective: determine occurrence and concentrations of OWCs in source and finished drinking waters of Columbus-area plants
Finnegan and others, USGS
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City of Columbus and the Upper Scioto River Basin
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Surface Water Drinking Water (source and finished)
Ground Water
depth and width-integrated collection
grab sample grab sample
5 stream sitessampled 3-4 times
3 water treatment plantssampled 3-4 times
1 production well sampled 2 times
Ohio Studies
Finnegan and others, USGS
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City of Columbus and the Upper Scioto River
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Ohio Studies
Finnegan and others, USGS
Detections of waste-water compounds and antibiotics in both source and finished waters
Black = WTPsource water
Blue = Surface water
Yellow = Groundwater
Gray = WTP finished water
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Ohio Studies
• Sampled 2 stream sites and 7 wells for wastewater compounds
• Surface water contained detectable concentrations of N,N-diethyl-meta-toluamide(DEET) but did not contain detectable concentrations of any other wastewater compounds
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Tuscarawas River Basin
Haefner and Simonson (2010)
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Ohio Studies
42
Tinkers Creek, northeast Ohio• Objective: assess the
occurrence & distribution of OWCs at locations upstream and downstream from 7 WWTPs and 2 reference sites outside the watershed
• Used Polar Organic Chemical Integrative Sampler (passive samplers)
POCIS Sampler
Tertuliani and others (2009)
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0 10 20 30 40 50Antibiot
icPha
rmace
uticalWaste
waterHydroph
obic
WW Sed
imen
t
Pharm
Sed
imen
t
Number of compoundsdetectedAverage of frequency ofdetection at all stations (%)
Tertuliani and others (2009)
Ohio StudiesTinkers Creek, Northeast Ohio
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Ohio StudiesCatalina Mobile Home Park, Butler County
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• Partially treated wastewater discharged to unlined lagoons since late 1960’s
Kenah and others, Ohio EPA
• Objective: Determine if infiltration to groundwater poses a public health threat
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Ohio Studies
• GW samples detected sulfamethoxazole and carbamazapine in boring and monitoring wells
• Distribution of detections consistent with chloride and TDS plume geometry
• Within single boring, concentration of pharmaceuticals decrease with depth
45Kenah and others, Ohio EPA
Catalina Mobile Home Park, Butler County
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46Kenah and others, Ohio EPA
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What have we learned about OWCs?• Present at sub-ppb concentrations in both
streams and ground water• Present as complex mixtures• Reflect a wide range of human activities• Some compounds mobile and persistent• Present in various environmental media (water,
sediment, tissue)
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What have we learned about OWCs?
• Effects of endocrine disruptors on aquatic organisms have been documented
• Little is known about human-health effects associated with chronic exposure to trace levels of OWCs
• Little is known about synergistic human-health effects of combinations of compounds
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For more information…
• USGS Toxics Substances Hydrology Programhttp://toxics.usgs.gov
• Health Based Screening Levels http://water.usgs.gov/nawqa/HBSL/
• Ohio Water Science Center http://oh.water.usgs.gov
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Contact Information
Ralph Haefner(Groundwater)614.430.7709
Water QualityDonna Francy614.430.7769 [email protected]
Surface WaterGreg [email protected]
Columbus ProjectDennis [email protected]
Tinkers Creek / POCIS ProjectJohn [email protected]
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