LINCOLN, Neb. (KMTV) — According to a release from the Nebraska Department of Health and Human Services (DHHS), a health alert has been issued for “Harmful Algal Blooms (HAB), also known as toxic blue-green algae” at Bluestem Lake in Lancaster County. Alerts are still in place for Wirth Brothers Lake in Johnson County and Calamus Reservoir in Garfield County.
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In addition, the DHHS' said:
"Iron Horse Trail Lake (WMA) in Pawnee County, Kirkman’s Cove Lake in Richardson County and Willow Creek Reservoir in Pierce County have been removed from health alert.
Samples taken earlier this week at the lakes on alert measure above the threshold of 8 parts per billion (ppb) of total microcystin, which is a toxin released by certain strains of blue-green algae. Based on recommendations issued in 2019 by the U.S. Environmental Protection Agency (EPA), the state of Nebraska adopted this limit after concluding that the new EPA threshold is based on the best scientific evidence available and is protective of public health.
When a health alert is issued, signs are posted to advise the public to use caution, and designated swimming beaches are closed during the alert. Recreational boating and fishing are permitted, but the public is advised to use caution and avoid exposure to the water, particularly avoiding any activity that could lead to swallowing the water. Do not let pets get in the water or drink from the lake. People can still use the public areas for camping, picnics and other outdoor activities.
Weekly sampling has been conducted at 53 public lakes since the first week of May. The lakes will continue to be monitored weekly through the end of September. Sampling results for HAB and bacteria will be updated every Friday and posted on NDEE’s website, http://dee.ne.gov]. The state’s monitoring is conducted at public lakes with swimming beaches and high public activity. HAB may also be present in other lakes in Nebraska that are not tested, so the public should use caution if they see signs of algal blooms.
For more information about what to look for, potential health effects from HAB and steps to avoid exposure, please refer to the following Fact Sheet. To view the weekly data for the lakes sampled, go to https://deq-iis.ne.gov/zs/bw/."
According to the CDC, people can get sick by exposure to droplets through:
- Skin
- Eyes
- Nose
- Throat
- Lungs
Symptoms of ingestion in humans include:
- Stomach pain
- Headache
- Neurological symptoms (for example, muscle weakness, dizziness)
- Vomiting
- Diarrhea
- Liver damage
If exposed, the CDC recommends contacting your doctor or a local poison control center and said you should report it to your local or state health department.
According to the ASPCA, animals can develop severe symptoms of exposure by drinking or just swimming in water that is contaminated by HAB and suffer "severe neurologic or liver damage."
The ASPCA said signs of exposure include:
- Seizures
- Panting
- Excessive drooling
- Respiratory failure
- Diarrhea
- Disorientation
- Vomiting
- Liver failure
- Ultimately death
If you think your pet may have ingested HAB, it is recommended that you contact your veterinarian or the ASPCA Animal Poison Control Center at 888-426-4435 immediately.
More information from the CDC.
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