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About Cyanobacteria Science Jennifer L. Graham, Andrew C. Ziegler, Brian L. Loving, and Keith A. Loftin U.S. Geological Survey Cooperative Water Program Stakeholder Webinar Series November 14, 2012 In Cooperation with: the City of Lawrence, the City of Topeka, Johnson County WaterOne, the Kansas Water Office, and the Kansas Department of Health and Environment 2011 Harmful Algal Blooms and Reservoir Releases in the Kansas River Watershed Kansas River serves as a drinking water supply for 800,000 Kansans Missouri River Flooding + Late Summer Reservoir Releases + Harmful Algal Blooms = Concerns About Transport of Cyanotoxins and Taste-and-Odor Compounds Potentially Affecting Drinking Water Supplies Milford Lake, September 2011 Photo courtesy of E. Looper, USGS Cyanobacterial Harmful Algal Blooms • Ecologic Concerns – Low dissolved oxygen – Fish kills • Economic Concerns – Loss of recreational revenue – Taste and odor • Olfactory sensitivity to taste-and- odors at low concentrations (5- Binder Lake, Iowa 10 ng/L) – Added drinking water treatment costs • Health Concerns – Toxicity • Cyanotoxins are on the EPA Contaminant Candidate List Marion Reservoir, Kansas Ecologic, Economic, and Public Health Concerns Surrounding Cyanobacterial Harmful Algal Blooms are a Reality Summer 2011 Headlines Cyanobacterial Toxins and Taste-and-Odor Compounds Hepatotoxins Neurotoxins Dermatoxins Taste/Odor CYL MC ANA SAX GEOS MIB Anabaena X X X X X X ? Aphanizomenon X ? X X X X Microcystis X X Oscillatoria/Planktothrix X X X X X X Anabaena Aphanizomenon Microcystis Planktothrix Photos courtesy of A. St. Amand After Graham and others, 2008, TWRI Chapter 7.5 http://water.usgs.gov/owq/FieldManual/ Cyanotoxin Exposure Do not try this at home (or anywhere else)! • Ingestion and inhalation during recreational activities (most likely) KDHE Beach Monitoring Program: http://www.kdheks.gov/algae-illness/ • Inhalation of aerosolized toxins • Consumption in drinking water Grand Lake St. Marys, Ohio Source of Photos Unknown World Health Organization (WHO) Provisional Guidelines for Microcystins in Finished Drinking Water and Recreational Areas • Finished Drinking Water (Chronic Effects): 1 µg/L • Recreational Areas (Acute Effects) – Low Risk: <10 µg/L – Moderate Risk: 10-20 µg/L – High Risk: 20-2,000 µg/L – Very High Risk: >2,000 µg/L “Algae may make for stinky water, but it poses no health risks” -Concord Monitor, Concord, NH July 7, 2006 http://www.who.int/water_sanitation_health/dwq/chemicals/microcystinsum.pdf Kansas River Study Objectives • Provide timely data to utilities that use the Kansas River as a source- water supply. • Characterize the extent and duration of the transport of cyanobacteria and associated toxins and taste-and-odor compounds from upstream reservoirs to the Kansas River. • Determine the strengths and weaknesses of the sampling plan used during this event so robust long-term plans to evaluate and provide a monitoring program for Milford Lake, September 2011 future events can be developed. Photo courtesy of E. Looper, USGS Kansas River Study Sites Kansas River Study Sampling Strategy • Samples were collected weekly during September 2-October 31, 2011; the sites sampled changed weekly based on toxin and taste-and-odor results. • Most river samples were surface grabs from the centroid of flow. • Samples were analyzed for microcystin, geosmin, 2-methylisoborneol, chlorophyll, and phytoplankton community composition. Milford Lake Sampling, September 2011 Photo courtesy of E. Looper, USGS Streamflow in the Kansas River Increased by About an Order of Magnitude at Most Sites During Peak Reservoir Releases 100,000 SMOKY HILL FT. RILEY WAMEGO BELVUE TOPEKA LECOMPTON DESOTO 10,000 1000 DISCRETE SAMPLE COLLECTION TRANSPORT CALCULATED STREAMFLOW (CFS)STREAMFLOW 100 8/1 8/8 8/15 8/22 8/29 9/5 9/12 9/19 9/26 10/3 10/10 10/17 10/24 10/31 AUGUST-OCTOBER 2011 The Kansas River Lost Water as Streamflow Increased and Gained Water as Streamflow Decreased SEPTEMBER 8, 2011 SEPTEMBER 26, 2011 4,000 20,000 3,000 15,000 2,000 Water lost to aquifer 10,000 1,000 5,000 GAGED GAGED EXPECTED EXPECTED 0 0 180 160 140 120 100 80 60 40 20 0 180 160 140 120 100 80 60 40 20 0 OCTOBER 3, 2011 OCTOBER 31, 2011 20,000 4,000 GAGED 15,000 3,000 EXPECTED 10,000 2,000 Water gained from aquifer STREAMFLOW (CFS)STREAMFLOW 5,000 1,000 GAGED EXPECTED 0 0 180 160 140 120 100 80 60 40 20 0 180 160 140 120 100 80 60 40 20 0 DISTANCE UPSTREAM FROM CONFLUENCE DISTANCE UPSTREAM FROM CONFLUENCE WITH MISSOURI RIVER, IN MILES WITH MISSOURI RIVER, IN MILES Microcystins were Detected in the Republican River, Downstream from Milford Lake, from September 2-November 7, 2011 1,000,000 MILFORD LAKE 100,000 REPUBLICAN RIVER g/L) 10,000 µ 1,000 100 10 KDHE GUIDELINE FOR PUBLIC HEALTH WARNING 1 WHO PROVISIONAL DRINKING-WATER GUIDELINE 0.1 ANALYTICAL METHOD DETECTION LIMIT TOTAL MICROCYSTIN ( 0.01 09/01 09/15 09/29 10/13 10/27 11/10 11/24 12/08 12/22 01/05 SEPTEMBER 2011-JANUARY 2012 Where Did the Microcystin in Milford Lake Go? • Redistribution Milford Lake 9/26/2011 • “Bathtub Ring” 50,400 cells/mL 618,030 cells/mL • Degradation 4,095 cells/mL 1,575 cells/mL 16,065 cells/mL Total Microcystin Loads from Milford Lake Ranged from About 0.1 to 30 Kilograms Per Day. 35 30 270,000 acre-feet released 25 20 15 10 5 TOTAL MICROCYSTIN LOAD (KG/D) 0 9/2 9/8 9/12 9/20 9/26 10/3 10/11 10/17 10/24 10/31 September-October 2011 Microcystins were Detected at All Kansas River Main-Stem Sites and Persisted from September 8-October 5, 2011 8 REPUBLICAN RIVER MICROCYSTINS WERE NOT FT. RILEY 7 MANHATTAN DETECTED IN FINISHED WAMEGO g/L) BELVUE DRINKING-WATER SAMPLES 6 TOPEKA COLLECTED ON 9/8 AND 9/22 LECOMPTON LAWRENCE DESOTO 5 I-435 4 3 2 WHO PROVISIONAL DRINKING-WATER GUIDELINE 1 TOTAL MICROCYSTIN ( TOTAL 0 ANALYTICALANALYTICAL METHOD METHOD DETECTION LIMIT DETECTION LIMIT 09/01 09/08 09/15 09/22 09/29 10/06 10/13 10/20 10/27 SEPTEMBER-OCTOBER 2011 Longitudinal Patterns in Total Microcystin Concentration Suggest Simple Dilution Models Are Not Sufficient to Describe Transport in the Kansas River TRIBUTARY CONCENTRATION MAIN-STEM CONCENTRATON ESTIMATED CONCENTRATION SEPTEMBER 8, 2011 OCTOBER 3, 2011 6 1.0 g/L) µ BIG BLUE 5 BIG BLUE WAKARUSA DELAWARE WAKARUSA 0.8 DELAWARE SMOKY HILL REPUBLICAN SMOKY HILL REPUBLICAN 4 0.6 3 0.4 2 WHO PROVISIONAL DRINKING-WATER GUIDELINE 0.2 1 ANALYTICAL DETECTION THRESHOLD ANALYTICAL DETECTION THRESHOLD TOTAL MICROCYSTINTOTAL ( 0 0.0 180 160 140 120 100 80 60 40 20 0 180 160 140 120 100 80 60 40 20 0 DISTANCE UPSTREAM FROM CONFLUENCE WITH MISSOURI RIVER, IN MILES Taste and Odor Compounds Were Detected in All Reservoir Outflows and Main-Stem Kansas River Study Sites GEOSMIN MIB 50 50 SMOKY HILL OUTFLOWS OUTFLOWS SMOKY HILL 40 REPUBLICAN (MILFORD) 40 REPUBLICAN (MILFORD) BIG BLUE (TUTTLE) BIG BLUE (TUTTLE) DELAWARE (PERRY) DELAWARE (PERRY) 30 WAKARUSA (CLINTON) 30 WAKARUSA (CLINTON) HUMAN DETECTION THRESHOLD 20 HUMAN DETECTION THRESHOLD ANALYTICAL METHOD DETECTION LIMIT 20 ANALYTICAL METHOD DETECTION LIMIT 10 10 0 0 09/01 09/08 09/15 09/22 09/29 10/06 10/13 10/20 10/27 09/01 09/08 09/15 09/22 09/29 10/06 10/13 10/20 10/27 50 50 MAIN-STEM SITES FT. RILEY MAIN-STEM SITES FT. RILEY 40 MANHATTAN MANHATTAN WAMEGO 40 WAMEGO BELVUE BELVUE 30 TOPEKA 30 TOPEKA LECOMPTON TOTAL MIB (NG/L) LECOMPTON LAWRENCE TOTAL GEOSMIN (NG/L) 20 LAWRENCE 20 DESOTO DE SOTO I-435 I-435 10 10 HUMAN DETECTION THRESHOLD HUMAN DETECTION THRESHOLD ANALYTICAL METHOD DETECTION LIMIT ANALYTICAL METHOD DETECTION LIMIT 0 0 09/01 09/08 09/15 09/22 09/29 10/06 10/13 10/20 10/27 09/01 09/08 09/15 09/22 09/29 10/06 10/13 10/20 10/27 SEPTEMBER-OCTOBER 2011 SEPTEMBER-OCTOBER 2011 Longitudinal Patterns in Taste-and-Odor Concentrations Suggest Simple Dilution Models Are Not Sufficient to Describe Transport in the Kansas River TRIBUTARY CONCENTRATION MAIN-STEM CONCENTRATION SEPTEMBER 8, 2011 ESTIMATED CONCENTRATION 14 30 12 BIG BLUE 25 BIG BLUE WAKARUSA DELAWARE WAKARUSA DELAWARE SMOKY HILL REPUBLICAN SMOKY HILL REPUBLICAN 10 20 8 15 6 10 4 ANALYTICAL DETECTION THRESHOLD TOTAL MIB (NG/L) 2 5 TOTAL GEOSMIN (NG/L) ANALYTICAL DETECTION THRESHOLD 0 0 180 160 140 120 100 80 60 40 20 0 180 160 140 120 100 80 60 40 20 0 DISTANCE UPSTREAM FROM CONFLUENCE WITH MISSOURI RIVER, IN MILES Taste-and-Odor Compounds and Microcystin Co-Occurred in 56% of the Samples Collected During September-October 2011 • 80% of samples had detectable taste-and-odor compounds (n=80). – 68% had detectable geosmin – 46% had detectable MIB • 61% of samples had detectable microcystin (n=95) Summary and Conclusions • Microcystins persisted in the environment long enough to be transported over 170 miles within one week following the release of stored flood waters. • Reservoir concentrations of cyanobacteria and associated compounds are not necessarily indicative of outflow conditions. • Spatial and temporal patterns were unique for each individual compound, but co-occurrence was relatively common. • Real-time water-quality monitoring and routine sample collection at multiple locations is critical to characterizing the spatial and temporal variability of these Kansas River at De Soto, August 2012 compounds in the Kansas River. 5 Year Study in the Kansas River - Objectives • Characterize sources, frequency of occurrence, and potential causes of cyanobacteria and associated compounds in the Kansas River. Kansas River at Wamego, August 2012 • Develop models to provide real-time estimates for a number of constituents, including cyanotoxins and taste- and-odor compounds.
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