Keith A Loftin, Ph.D.
Products and information related to Keith Loftin.
Science and Products
Filter Total Items: 32
Tracking Toxins at the Coastline: A National Look at Harmful Algal Toxins in U.S. Coastal Waters
This study is a major step forward in understanding how harmful algal blooms, which are often associated with lakes and rivers, can also affect coastal environments. It provides important baseline information for scientists, public health officials, and environmental managers.
Leveraging UV Light for Effective Algal Toxin Removal in Drinking Water
Harmful algal blooms (HABs) pose significant risks to public health and the environment by producing dangerous toxins like microcystin-LR (MC-LR), which can exceed safety limits in drinking water. Research by the U.S. Geological Survey, The Ohio State University, and Boise State University evaluated ultraviolet (UV) light treatments for reducing microcystin levels, comparing traditional UV254 with...
Algal and Environmental Toxins Research Laboratory — Lawrence, Kansas
About the Laboratory The Environmental Health Program collaborates with scientists at the Organic Geochemistry Research Laboratory (OGRL) in Lawrence, Kansas, to develop and employ targeted and non-targeted analytical methods for identification and quantitation of known and understudied algal/cyanobacterial toxins. The laboratory contructed in 2019 is a 2,500 square foot modern laboratory facility...
Decoding Harmful Algal Blooms: Unraveling the Mystery
Harmful algal blooms (HABs) are a significant environmental concern due to their potential effects on health, ecosystems, and economies. Algal toxins, which are toxic compounds produced by certain species of cyanobacteria and algae, are commonly linked to these blooms. It's important to note that algal toxins can still be present even when a bloom is not visible, highlighting the need for ongoing...
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, California Water Science Center, Caribbean-Florida Water Science Center (CFWSC), Kansas Water Science Center, Maryland-Delaware-D.C. Water Science Center, National Wildlife Health Center, Nevada Water Science Center, New England Water Science Center, New Jersey Water Science Center, New Mexico Water Science Center, South Atlantic Water Science Center (SAWSC), St. Petersburg Coastal and Marine Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center
Understanding Algal Bloom Dynamics in Lake Okeechobee
The U.S. Geological Survey (USGS) is conducting studies to better understand algal bloom dynamics to enhance lake management. Recent research, in Lake Okeechobee, Florida, focused on phytoplankton community and abundance. Phytoplankton can be a potential driver of harmful algal blooms (HABs).
FY25 Capabilities and Services
The U.S. Geological Survey (USGS) Kansas Water Science Center Organic Geochemistry Research Laboratory (OGRL) was established in 1987. The OGRL is a multidisciplinary program that contributes knowledge about the distribution, fate, transport, and effects of new and understudied organic compounds that may affect human health and (or) ecosystems. The OGRL consists of two units: Algal and Other...
Collaborative Science Provides Understanding of Contaminants in Bottled Water-an Increasingly Common Alternate Drinking Water Source
U.S. Geological Survey researchers and public health experts collaborated to determine what contaminants occur in bottled water, which is an increasingly common alternate drinking water source, to broaden their understanding of human exposure to contaminants in drinking water supply chains. Bottled water, like public-supply and private-well tap water supply chains, contained multiple organic...
Web-Based Tool Developed through Multiagency Effort Allows Visualization of Cyanobacteria Blooms in Lakes and Reservoirs—Steps Toward Public Awareness and Exposure Prevention
A web-based application tool utilizing satellite data—CyANWeb—developed through collaborative interagency efforts was released as part of the Cyanobacteria Assessment Network (CyAN) to help Federal, State, Tribal, and local partners identify when cyanobacterial blooms may be forming. Available through a web browser or as an application, the tool can access, download, and provide data to notify...
Characterization of Potentially Toxic CyanoHAB Initiation in Slow-Moving Streams, Wetlands, and Oxbows
Targeted sampling in selected slow-moving streams, wetlands, and oxbows to receiving reservoirs and rivers will allow us to better characterize the hydrologic, water-quality, and biological conditions present during the formation and transport of potentially toxic cyanobacteria blooms.
Toxins and Harmful Algal Blooms Science Team
The team develops advanced methods to study factors driving algal toxin production, how and where wildlife or humans are exposed to toxins, and ecotoxicology. That information is used to develop decision tools to understand if toxin exposure leads to adverse health effects in order to protect human and wildlife health.
Detecting Sublethal Effects of Harmful Algal Blooms in Mammalian and Avian Cells
USGS Researchers are collaborating to study avian and mammalian cells to detect sublethal toxin effects following exposure to harmful algal blooms.
Review of Cyanobacterial Neurotoxins—Information for Prioritizing Future Science Directions
The current state of knowledge on the modes of action, production, fate, and occurrence of the freshwater cyanobacterial neurotoxins, anatoxin-a and saxitoxin, was reviewed and synthesized to identify gaps and critical research needs to better understand the health effects of algal toxins.
Satellite reflectance for Milford Lake near Wakefield, Kansas
(USGS scientist working on data analysis of cyanotoxins in water
(USGS scientist working on data analysis of cyanotoxins in waterU.S. Geological Survey (USGS) scientist working on data analysis of cyanotoxins in water samples
(USGS scientist working on data analysis of cyanotoxins in water
(USGS scientist working on data analysis of cyanotoxins in waterU.S. Geological Survey (USGS) scientist working on data analysis of cyanotoxins in water samples
USGS scientists evaluating the nebulizer assembly
USGS scientists evaluating the nebulizer assembly in a mixed mode ionization source of a triple quadrupole mass spectrometer used to measure individual cyanotoxins
USGS scientists evaluating the nebulizer assembly in a mixed mode ionization source of a triple quadrupole mass spectrometer used to measure individual cyanotoxins
USGS scientist preparing to measure cyanotoxins in water samples
USGS scientist preparing to measure cyanotoxins in water samplesUSGS) scientist preparing to measure cyanotoxins in water samples using an automated enzyme-linked immunosorbent assay (ELISA) instrument
USGS scientist preparing to measure cyanotoxins in water samples
USGS scientist preparing to measure cyanotoxins in water samplesUSGS) scientist preparing to measure cyanotoxins in water samples using an automated enzyme-linked immunosorbent assay (ELISA) instrument
Science and Products
Filter Total Items: 32
Tracking Toxins at the Coastline: A National Look at Harmful Algal Toxins in U.S. Coastal Waters
This study is a major step forward in understanding how harmful algal blooms, which are often associated with lakes and rivers, can also affect coastal environments. It provides important baseline information for scientists, public health officials, and environmental managers.
Leveraging UV Light for Effective Algal Toxin Removal in Drinking Water
Harmful algal blooms (HABs) pose significant risks to public health and the environment by producing dangerous toxins like microcystin-LR (MC-LR), which can exceed safety limits in drinking water. Research by the U.S. Geological Survey, The Ohio State University, and Boise State University evaluated ultraviolet (UV) light treatments for reducing microcystin levels, comparing traditional UV254 with...
Algal and Environmental Toxins Research Laboratory — Lawrence, Kansas
About the Laboratory The Environmental Health Program collaborates with scientists at the Organic Geochemistry Research Laboratory (OGRL) in Lawrence, Kansas, to develop and employ targeted and non-targeted analytical methods for identification and quantitation of known and understudied algal/cyanobacterial toxins. The laboratory contructed in 2019 is a 2,500 square foot modern laboratory facility...
Decoding Harmful Algal Blooms: Unraveling the Mystery
Harmful algal blooms (HABs) are a significant environmental concern due to their potential effects on health, ecosystems, and economies. Algal toxins, which are toxic compounds produced by certain species of cyanobacteria and algae, are commonly linked to these blooms. It's important to note that algal toxins can still be present even when a bloom is not visible, highlighting the need for ongoing...
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, California Water Science Center, Caribbean-Florida Water Science Center (CFWSC), Kansas Water Science Center, Maryland-Delaware-D.C. Water Science Center, National Wildlife Health Center, Nevada Water Science Center, New England Water Science Center, New Jersey Water Science Center, New Mexico Water Science Center, South Atlantic Water Science Center (SAWSC), St. Petersburg Coastal and Marine Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center
Understanding Algal Bloom Dynamics in Lake Okeechobee
The U.S. Geological Survey (USGS) is conducting studies to better understand algal bloom dynamics to enhance lake management. Recent research, in Lake Okeechobee, Florida, focused on phytoplankton community and abundance. Phytoplankton can be a potential driver of harmful algal blooms (HABs).
FY25 Capabilities and Services
The U.S. Geological Survey (USGS) Kansas Water Science Center Organic Geochemistry Research Laboratory (OGRL) was established in 1987. The OGRL is a multidisciplinary program that contributes knowledge about the distribution, fate, transport, and effects of new and understudied organic compounds that may affect human health and (or) ecosystems. The OGRL consists of two units: Algal and Other...
Collaborative Science Provides Understanding of Contaminants in Bottled Water-an Increasingly Common Alternate Drinking Water Source
U.S. Geological Survey researchers and public health experts collaborated to determine what contaminants occur in bottled water, which is an increasingly common alternate drinking water source, to broaden their understanding of human exposure to contaminants in drinking water supply chains. Bottled water, like public-supply and private-well tap water supply chains, contained multiple organic...
Web-Based Tool Developed through Multiagency Effort Allows Visualization of Cyanobacteria Blooms in Lakes and Reservoirs—Steps Toward Public Awareness and Exposure Prevention
A web-based application tool utilizing satellite data—CyANWeb—developed through collaborative interagency efforts was released as part of the Cyanobacteria Assessment Network (CyAN) to help Federal, State, Tribal, and local partners identify when cyanobacterial blooms may be forming. Available through a web browser or as an application, the tool can access, download, and provide data to notify...
Characterization of Potentially Toxic CyanoHAB Initiation in Slow-Moving Streams, Wetlands, and Oxbows
Targeted sampling in selected slow-moving streams, wetlands, and oxbows to receiving reservoirs and rivers will allow us to better characterize the hydrologic, water-quality, and biological conditions present during the formation and transport of potentially toxic cyanobacteria blooms.
Toxins and Harmful Algal Blooms Science Team
The team develops advanced methods to study factors driving algal toxin production, how and where wildlife or humans are exposed to toxins, and ecotoxicology. That information is used to develop decision tools to understand if toxin exposure leads to adverse health effects in order to protect human and wildlife health.
Detecting Sublethal Effects of Harmful Algal Blooms in Mammalian and Avian Cells
USGS Researchers are collaborating to study avian and mammalian cells to detect sublethal toxin effects following exposure to harmful algal blooms.
Review of Cyanobacterial Neurotoxins—Information for Prioritizing Future Science Directions
The current state of knowledge on the modes of action, production, fate, and occurrence of the freshwater cyanobacterial neurotoxins, anatoxin-a and saxitoxin, was reviewed and synthesized to identify gaps and critical research needs to better understand the health effects of algal toxins.
Satellite reflectance for Milford Lake near Wakefield, Kansas
(USGS scientist working on data analysis of cyanotoxins in water
(USGS scientist working on data analysis of cyanotoxins in waterU.S. Geological Survey (USGS) scientist working on data analysis of cyanotoxins in water samples
(USGS scientist working on data analysis of cyanotoxins in water
(USGS scientist working on data analysis of cyanotoxins in waterU.S. Geological Survey (USGS) scientist working on data analysis of cyanotoxins in water samples
USGS scientists evaluating the nebulizer assembly
USGS scientists evaluating the nebulizer assembly in a mixed mode ionization source of a triple quadrupole mass spectrometer used to measure individual cyanotoxins
USGS scientists evaluating the nebulizer assembly in a mixed mode ionization source of a triple quadrupole mass spectrometer used to measure individual cyanotoxins
USGS scientist preparing to measure cyanotoxins in water samples
USGS scientist preparing to measure cyanotoxins in water samplesUSGS) scientist preparing to measure cyanotoxins in water samples using an automated enzyme-linked immunosorbent assay (ELISA) instrument
USGS scientist preparing to measure cyanotoxins in water samples
USGS scientist preparing to measure cyanotoxins in water samplesUSGS) scientist preparing to measure cyanotoxins in water samples using an automated enzyme-linked immunosorbent assay (ELISA) instrument