Current Approaches to Cyanotoxin Risk Assessment, Risk Management and Regulations in Different Countries
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Guidelines for Design and Sampling for Cyanobacterial Toxin and Taste-And-Odor Studies in Lakes and Reservoirs
Guidelines for Design and Sampling for Cyanobacterial Toxin and Taste-and-Odor Studies in Lakes and Reservoirs Scientific Investigations Report 2008–5038 U.S. Department of the Interior U.S. Geological Survey Photo 1 Photo 3 Photo 2 Front cover. Photograph 1: Beach sign warning of the presence of a cyanobacterial bloom, June 29, 2006 (photograph taken by Jennifer L. Graham, U.S. Geological Survey). Photograph 2: Sampling a near-shore accumulation of Microcystis, August 8, 2006 (photograph taken by Jennifer L. Graham, U.S. Geological Survey). Photograph 3: Mixed bloom of Anabaena, Aphanizomenon, and Microcystis, August 10, 2006 (photograph taken by Jennifer L. Graham, U.S. Geological Survey). Background photograph: Near-shore accumulation of Microcystis, August 8, 2006 (photograph taken by Jennifer L. Graham, U.S. Geological Survey). Guidelines for Design and Sampling for Cyanobacterial Toxin and Taste-and-Odor Studies in Lakes and Reservoirs By Jennifer L. Graham, Keith A. Loftin, Andrew C. Ziegler, and Michael T. Meyer Scientific Investigations Report 2008–5038 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior DIRK KEMPTHORNE, Secretary U.S. Geological Survey Mark D. Myers, Director U.S. Geological Survey, Reston, Virginia: 2008 For product and ordering information: World Wide Web: http://www.usgs.gov/pubprod Telephone: 1-888-ASK-USGS For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment: World Wide Web: http://www.usgs.gov Telephone: 1-888-ASK-USGS Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. -
Martian Crater Morphology
ANALYSIS OF THE DEPTH-DIAMETER RELATIONSHIP OF MARTIAN CRATERS A Capstone Experience Thesis Presented by Jared Howenstine Completion Date: May 2006 Approved By: Professor M. Darby Dyar, Astronomy Professor Christopher Condit, Geology Professor Judith Young, Astronomy Abstract Title: Analysis of the Depth-Diameter Relationship of Martian Craters Author: Jared Howenstine, Astronomy Approved By: Judith Young, Astronomy Approved By: M. Darby Dyar, Astronomy Approved By: Christopher Condit, Geology CE Type: Departmental Honors Project Using a gridded version of maritan topography with the computer program Gridview, this project studied the depth-diameter relationship of martian impact craters. The work encompasses 361 profiles of impacts with diameters larger than 15 kilometers and is a continuation of work that was started at the Lunar and Planetary Institute in Houston, Texas under the guidance of Dr. Walter S. Keifer. Using the most ‘pristine,’ or deepest craters in the data a depth-diameter relationship was determined: d = 0.610D 0.327 , where d is the depth of the crater and D is the diameter of the crater, both in kilometers. This relationship can then be used to estimate the theoretical depth of any impact radius, and therefore can be used to estimate the pristine shape of the crater. With a depth-diameter ratio for a particular crater, the measured depth can then be compared to this theoretical value and an estimate of the amount of material within the crater, or fill, can then be calculated. The data includes 140 named impact craters, 3 basins, and 218 other impacts. The named data encompasses all named impact structures of greater than 100 kilometers in diameter. -
Cyanobacterial Toxins: Saxitoxins
WHO/SDE/WSH/xxxxx English only Cyanobacterial toxins: Saxitoxins Background document for development of WHO Guidelines for Drinking-water Quality and Guidelines for Safe Recreational Water Environments Version for Public Review Nov 2019 © World Health Organization 20XX Preface Information on cyanobacterial toxins, including saxitoxins, is comprehensively reviewed in a recent volume to be published by the World Health Organization, “Toxic Cyanobacteria in Water” (TCiW; Chorus & Welker, in press). This covers chemical properties of the toxins and information on the cyanobacteria producing them as well as guidance on assessing the risks of their occurrence, monitoring and management. In contrast, this background document focuses on reviewing the toxicological information available for guideline value derivation and the considerations for deriving the guideline values for saxitoxin in water. Sections 1-3 and 8 are largely summaries of respective chapters in TCiW and references to original studies can be found therein. To be written by WHO Secretariat Acknowledgements To be written by WHO Secretariat 5 Abbreviations used in text ARfD Acute Reference Dose bw body weight C Volume of drinking water assumed to be consumed daily by an adult GTX Gonyautoxin i.p. intraperitoneal i.v. intravenous LOAEL Lowest Observed Adverse Effect Level neoSTX Neosaxitoxin NOAEL No Observed Adverse Effect Level P Proportion of exposure assumed to be due to drinking water PSP Paralytic Shellfish Poisoning PST paralytic shellfish toxin STX saxitoxin STXOL saxitoxinol -
Umezakia Natans M.Watan. Does Not Belong to Stigonemataceae but To
Fottea 11(1): 163–169, 2011 163 Umezakia natans M.WATAN . does not belong to Stigonemataceae but to Nostocaceae Yuko NIIYAMA 1, Akihiro TUJI 1 & Shigeo TSUJIMURA 2 1Department of Botany, National Museum of Nature and Science, 4–1–1 Amakubo, Tsukuba, Ibaraki 305–0005, Japan; e–mail: [email protected] 2Lake Biwa Environmental Research Institute, 5–34 Yanagasaki, Otsu, Shiga 520–0022, Japan Abstract: Umezakia natans M.WA T A N . was described by Dr. M. Watanabe in 1987 as a new species in the family of Stigonemataceae, following the rules of the Botanical Code. According to the original description, this planktonic filamentous species grows well in a growth media with pH being 7 to 9, and with a smaller proportion of sea water. Both heterocytes and akinetes were observed, as well as true branches developing perpendicular to the original trichomes in cultures older than one month. Watanabe concluded that Umezakia was a monotypic and only planktonic genus belonging to the family of Stigonemataceae. Unfortunately, the type culture has been lost. In 2008, we successfully isolated a new strain of Umezakia natans from a sample collected from Lake Suga. This lake is situated very close to the type locality, Lake Mikata in Fukui Prefecture, Japan. We examined the morphology of this U. natans strain, and conducted a DNA analysis using 16S rDNA regions. Morphological characters of the newly isolated strain were in a good agreement with the original description of U. natans. Furthermore, results of the DNA analysis showed that U. natans appeared in a cluster containing Aphanizomenon ovalisporum and Anabaena bergii. -
Atmospheric CO2 Availability Induces Varying Responses in Net
Aquatic Sciences (2021) 83:33 https://doi.org/10.1007/s00027-021-00788-6 Aquatic Sciences RESEARCH ARTICLE Atmospheric CO2 availability induces varying responses in net photosynthesis, toxin production and N2 fxation rates in heterocystous flamentous Cyanobacteria (Nostoc and Nodularia) Nicola Wannicke1 · Achim Herrmann2 · Michelle M. Gehringer2 Received: 21 April 2020 / Accepted: 3 February 2021 © The Author(s) 2021 Abstract Heterocystous Cyanobacteria of the genus Nodularia form major blooms in brackish waters, while terrestrial Nostoc species occur worldwide, often associated in biological soil crusts. Both genera, by virtue of their ability to fx N2 and conduct oxy- genic photosynthesis, contribute signifcantly to global primary productivity. Select Nostoc and Nodularia species produce the hepatotoxin nodularin and whether its production will change under climate change conditions needs to be assessed. In light of this, the efects of elevated atmospheric CO2 availability on growth, carbon and N2 fxation as well as nodularin production were investigated in toxin and non-toxin producing species of both genera. Results highlighted the following: • Biomass and volume specifc biological nitrogen fxa- • Elevated atmospheric CO 2 levels were correlated to a tion (BNF) rates were respectively almost six and 17 fold reduction in biomass specifc BNF rates in non-toxic higher in the aquatic Nodularia species compared to the Nodularia species. terrestrial Nostoc species tested, under elevated CO 2 con- • Nodularin producers exhibited stronger stimulation of ditions. net photosynthesis rates (NP) and growth (more positive • There was a direct correlation between elevated CO 2 and Cohen’s d) and less stimulation of dark respiration and decreased dry weight specifc cellular nodularin content BNF per volume compared to non-nodularin producers in a diazotrophically grown terrestrial Nostoc species, under elevated CO2 levels. -
The Spatial and Temporal Distribution and Environmental Drivers Of
THE SPATIAL AND TEMPORAL DISTRIBUTION AND POTENTIAL ENVIRONMENTAL DRIVERS OF SAXITOXIN IN NORTHWEST OHIO Callie A. Nauman A Thesis Submitted to the Graduate College of Bowling Green State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 2020 Committee: Timothy Davis, Advisor George Bullerjahn Justin Chaffin © 2020 Callie A. Nauman All Rights Reserved iii ABSTRACT Timothy Davis, Advisor Cyanobacterial harmful algal blooms threaten freshwater quality and human health around the world. One specific threat is the ability of some cyanobacteria to produce multiple types of toxins, including a range of neurotoxins called saxitoxins. While it is not completely understood, the general consensus is environmental factors like phosphorus, nitrogen, and light availability, may be driving forces in saxitoxin production. Recent surveys have determined saxitoxin and potential saxitoxin producing cyanobacterial species in both lakes and rivers across the United States and Ohio. Research evaluating benthic cyanobacterial blooms determined benthic cyanobacteria as a source for saxitoxin production in systems, specifically rivers. Currently, little is known about when, where, why, or who is producing saxitoxin in Ohio, and even less is known about the role benthic cyanobacterial blooms play in Ohio waterways. With increased detections of saxitoxin, the saxitoxin biosynthesis gene sxtA, and saxitoxin producing species in both the Western Basin of Lake Erie and the lake’s major tributary the Maumee River, seasonal sampling was conducted to monitor saxitoxin in both systems. The sampling took place from late spring to early autumn of 2018 and 2019. Monitoring including bi-/weekly water column sampling in the Maumee River and Lake Erie and Nutrient Diffusing Substrate (NDS) Experiments, were completed to evaluate saxitoxin, sxtA, potential environmental drivers, and benthic production. -
Workshop on Mars Telescopic Observations
WORKSHCPON MARS TELESCOPIC OBSERVATIONS 90' 180'-;~~~~~~------------------..~~------------~~----..~o~,· 270' LPI Technical Report Number 95-04 Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058-1113 LPIITR--95-04 WORKSHOP ON MARS TELESCOPIC OBSERVATIONS Edited by J. F. Bell III and J. E. Moersch Held at Cornell University, Ithaca, New York August 14-15, 1995 Sponsored by Lunar and Planetary Institute Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058-1113 LPI Technical Report Number 95-04 LPIITR--95-04 Compiled in 1995 by LUNAR AND PLANETARY INSTITUTE The Institute is operated by the Universities Space Research Association under Contract No. NASW-4574 with the National Aeronautics and Space Administration. Material in this volume may be copied without restraint for library, abstract service, education, or personal research purposes; however, republication of any paper or portion thereof requires the written permission of the authors as well as the appropriate acknowledgment of this publication. This report may be cited as Bell J. F.III and Moersch J. E., eds. (1995) Workshop on Mars Telescopic Observations. LPI Tech. Rpt. 95-04, Lunar and Planetary Institute, Houston. 33 pp. This report is distributed by ORDER DEPARTMENT Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058-1113 Mail order requestors will be invoiced for the cost ofshipping and handling. Cover: Orbits of Mars (outer ellipse) and Earth (inner ellipse) showing oppositions of the planet from 1954to 1999. From C. Aammarion (1954) The Flammarion Book ofAstronomy, Simon and Schuster, New York. LPl Technical Report 95-04 iii Introduction The Mars Telescopic Observations Workshop, held August 14-15, 1995, at Cornell University in Ithaca, New York, was organized and planned with two primary goals in mind: The first goal was to facilitate discussions among and between amateur and professional observers and to create a workshop environment fostering collaborations and comparisons within the Mars ob serving community. -
Appendix I Lunar and Martian Nomenclature
APPENDIX I LUNAR AND MARTIAN NOMENCLATURE LUNAR AND MARTIAN NOMENCLATURE A large number of names of craters and other features on the Moon and Mars, were accepted by the IAU General Assemblies X (Moscow, 1958), XI (Berkeley, 1961), XII (Hamburg, 1964), XIV (Brighton, 1970), and XV (Sydney, 1973). The names were suggested by the appropriate IAU Commissions (16 and 17). In particular the Lunar names accepted at the XIVth and XVth General Assemblies were recommended by the 'Working Group on Lunar Nomenclature' under the Chairmanship of Dr D. H. Menzel. The Martian names were suggested by the 'Working Group on Martian Nomenclature' under the Chairmanship of Dr G. de Vaucouleurs. At the XVth General Assembly a new 'Working Group on Planetary System Nomenclature' was formed (Chairman: Dr P. M. Millman) comprising various Task Groups, one for each particular subject. For further references see: [AU Trans. X, 259-263, 1960; XIB, 236-238, 1962; Xlffi, 203-204, 1966; xnffi, 99-105, 1968; XIVB, 63, 129, 139, 1971; Space Sci. Rev. 12, 136-186, 1971. Because at the recent General Assemblies some small changes, or corrections, were made, the complete list of Lunar and Martian Topographic Features is published here. Table 1 Lunar Craters Abbe 58S,174E Balboa 19N,83W Abbot 6N,55E Baldet 54S, 151W Abel 34S,85E Balmer 20S,70E Abul Wafa 2N,ll7E Banachiewicz 5N,80E Adams 32S,69E Banting 26N,16E Aitken 17S,173E Barbier 248, 158E AI-Biruni 18N,93E Barnard 30S,86E Alden 24S, lllE Barringer 29S,151W Aldrin I.4N,22.1E Bartels 24N,90W Alekhin 68S,131W Becquerei -
The Role of External Factors in the Variability of the Structure of the Zooplankton Community of Small Lakes (South-East Kazakhstan)
water Article The Role of External Factors in the Variability of the Structure of the Zooplankton Community of Small Lakes (South-East Kazakhstan) Moldir Aubakirova 1,2,*, Elena Krupa 3 , Zhanara Mazhibayeva 2, Kuanysh Isbekov 2 and Saule Assylbekova 2 1 Faculty of Biology and Biotechnology, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan 2 Fisheries Research and Production Center, Almaty 050016, Kazakhstan; mazhibayeva@fishrpc.kz (Z.M.); isbekov@fishrpc.kz (K.I.); assylbekova@fishrpc.kz (S.A.) 3 Institute of Zoology, Almaty 050060, Kazakhstan; [email protected] * Correspondence: [email protected]; Tel.: +7-27-3831715 Abstract: The variability of hydrochemical parameters, the heterogeneity of the habitat, and a low level of anthropogenic impact, create the premises for conserving the high biodiversity of aquatic communities of small water bodies. The study of small water bodies contributes to understanding aquatic organisms’ adaptation to sharp fluctuations in external factors. Studies of biological com- munities’ response to fluctuations in external factors can be used for bioindication of the ecological state of small water bodies. In this regard, the purpose of the research is to study the structure of zooplankton of small lakes in South-East Kazakhstan in connection with various physicochemical parameters to understand the role of biological variables in assessing the ecological state of aquatic Citation: Aubakirova, M.; Krupa, E.; ecosystems. According to hydrochemical data in summer 2019, the nutrient content was relatively Mazhibayeva, Z.; Isbekov, K.; high in all studied lakes. A total of 74 species were recorded in phytoplankton. The phytoplankton Assylbekova, S. The Role of External abundance varied significantly, from 8.5 × 107 to 2.71667 × 109 cells/m3, with a biomass from 0.4 Factors in the Variability of the to 15.81 g/m3. -
Harmful Algal Blooms (Habs) and Desalination: a Guide to Impacts, Monitoring, and Management
Manuals and Guides 78 Harmful Algal Blooms (HABs) and Desalination: A Guide to Impacts, Monitoring, and Management Edited by: Donald M. Anderson, Siobhan F.E. Boerlage, Mike B. Dixon UNESCO Manuals and Guides 78 Intergovernmental Oceanographic Commission Harmful Algal Blooms (HABs) and Desalination: A Guide to Impacts, Monitoring and Management Edited by: Donald M. Anderson* Biology Department, Woods Hole Oceanographic Institution Woods Hole, MA 02543 USA Siobhan F. E. Boerlage Boerlage Consulting Gold Coast, Queensland, Australia Mike B. Dixon MDD Consulting, Kensington Calgary, Alberta, Canada *Corresponding Author’s email: [email protected] UNESCO 2017 Bloom prevention and control 7 BLOOM PREVENTION AND CONTROL Clarissa R. Anderson1, Kevin G. Sellner2, and Donald M. Anderson3 1University of California, Santa Cruz, Santa Cruz, CA USA 2Chesapeake Research Consortium, Edgewater MD USA 3Woods Hole Oceanographic Institution, Woods Hole MA USA 7.1 Introduction ........................................................................................................................................... 205 7.2 Bloom prevention .................................................................................................................................. 207 7.2.1 Nutrient load reduction .................................................................................................................. 207 7.2.2 Nutrient load ................................................................................................................................. -
Cyanobacteria and Cyanotoxin Analysis and Testing Services [As of 3/15/2016]
Cyanobacteria/Cyanotoxin Testing Services List Developed by the NEIWPCC HAB Workgroup (Northeast state health and environmental agency staff). The New England Interstate Water Pollution Control Commission is a non-profit organization established through an act of Congress in 1947. NEIWPCC strives to: coordinate activities and forums that encourage cooperation among the states; educate the public about key environmental issues; support research projects, train environmental professionals, and provide overall leadership in the management and protection of water quality. Cyanobacteria and Cyanotoxin Analysis and Testing Services [As of 3/15/2016] Disclaimer: Individuals and/or companies listed below have been identified as performing services related to cyanobacteria and cyanotoxin analysis. This should not be considered an endorsement by NEIWPCC or any state agency of their qualifications. Public Water Systems considering contracting with any individual or company should verify that they have the adequate training and are competent to perform the work for which they are being considered. Prices should be viewed as guidelines of what to expect for each lab, rather than final quotes – many offer discounts, e.g., for bulk samples. Academy of Natural Sciences – Phycology Section Patrick Center for Environmental Research 1900 Benjamin Franklin Parkway Philadelphia, PA 19103 Tel: (215) 299-1080 Fax: (215) 299-1079 Email General: [email protected] Email Don Charles: [email protected] Email Frank Acker (primary soft-algae taxonomist): [email protected] Services: Identification of algae and algal measurements/biovolume, cell counts, chlorophyll Pricing: (Can give estimate based on sample, and separate the phytoplankton and periphyton in terms of how they are processed) Semiquantitative count (relative abundance, five-point scale, rare to abundant) – $150-200 Algal identification (cell count, biovolume) – $440-550 Chlorophyll (fluorometer) – Call for cost Diatom count – $300 Aquatic Services, Wayne Carmichael, Ph.D. -
Harmful Algal Blooms: Dominance in Lakes and Risk for Cyanotoxin Exposure in Food Crops
Utah State University DigitalCommons@USU All Graduate Theses and Dissertations Graduate Studies 8-2020 Harmful Algal Blooms: Dominance in Lakes and Risk for Cyanotoxin Exposure in Food Crops Austin D. Bartos Utah State University Follow this and additional works at: https://digitalcommons.usu.edu/etd Part of the Food Science Commons, and the Terrestrial and Aquatic Ecology Commons Recommended Citation Bartos, Austin D., "Harmful Algal Blooms: Dominance in Lakes and Risk for Cyanotoxin Exposure in Food Crops" (2020). All Graduate Theses and Dissertations. 7871. https://digitalcommons.usu.edu/etd/7871 This Thesis is brought to you for free and open access by the Graduate Studies at DigitalCommons@USU. It has been accepted for inclusion in All Graduate Theses and Dissertations by an authorized administrator of DigitalCommons@USU. For more information, please contact [email protected]. HARMFUL ALGAL BLOOMS: DOMINANCE IN LAKES AND RISK FOR CYANOTOXIN EXPOSURE IN FOOD CROPS by Austin D. Bartos A thesis submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE in Ecology Approved: ______________________ ____________________ Janice Brahney, Ph.D. Daniel Drost, Ph.D. Major Professor Committee Member _____________________ ____________________ William Doucette, Ph.D. Janis L. Boettinger, Ph.D. Committee Member Acting Vice Provost of Graduate Studies UTAH STATE UNIVERSITY Logan, Utah 2020 ii Copyright © Austin D. Bartos 2020 All Rights Reserved iii ABSTRACT Harmful Algal Blooms: Dominance in Lakes and Risk for Cyanotoxin Exposure in Food Crops by Austin D. Bartos, Master of Science Utah State University, 2020 Major Professor: Dr. Janice Brahney Department: Watershed Sciences Harmful algal blooms (HABs) producing cyanotoxins have increased worldwide in the past decade and threaten human and ecosystem health.