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Harmful Algal Blooms Observing System –

Blooms like these are becoming a more frequent occurrence and are having greater impacts than ever before. The estimated annual cost of U.S. freshwater degraded by harmful algal blooms is $64 million in additional drinking water treatment, loss of recreational water usage, and decline in waterfront real estate values.

Harmful Algal Bloom Operational Forecast System –

The first step in the five-year project will be creating a reliable, standard method for identifying cyanobacteria blooms in U.S. freshwater lakes and reservoirs using ocean color satellite data. NOAA and NASA have lead the way in using oceanic satellite data for monitoring and forecasting harmful algal blooms and EPA is integrating this data into the decision-making process.

Harmful Algal BloomsWednesday, May 18th 3:00 p.m. ET

Researchers will also conduct a large-scale investigation of potential causes of harmful algal blooms in U.S. freshwater systems. Blooms in lakes and estuaries result from aquatic plants receiving a combination of excess nutrients, perhaps from river runoff, and other environmental conditions such as temperature and light. Various land uses, such as urbanization or modernized agricultural practices, influence the amount of sediment and nutrients delivered in watersheds, which can influence cyanobacterial growth.

Algal blooms have caused extensive problems in lakes worldwide. We saw this in August, 2014 when half a million people living in and around Toledo, Ohio were issued a water advisory alerting them to avoid all contact with Toledo drinking water after a harmful algal bloom of cyanobateria in Lake Erie had produced unsafe levels of the toxin microcystin.

Responding to Harmful Algal BloomsTuesday, May 31st, 2:00 p.m. ET

You likely remember when, this past summer, half a million people who live in the Toledo, Ohio, area were told not to drink the water coming out of their taps for several days. A state of emergency was declared because of a harmful algal bloom, which released toxins into the water that could have made many people ill.

With help from partners, EPA is going above and beyond the agency’s traditional methods of monitoring harmful algal blooms in water. EPA has joined NASA, NOAA, and the U.S. Geological Survey (USGS) to use satellite data to monitor algal blooms and develop an early warning indicator system for toxic and nuisance blooms.

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View information about observed algal bloom events Skip to ..

are partly caused by an excessive amount of nutrients in the water – specifically, nitrogen and phosphorus. These nutrients are essential for ecosystems, but too many of them in one place is bad news. Not only do harmful algal blooms pose huge risks for people’s health, they can also cause fish and other aquatic wildlife to die off.

Harmful Algal Blooms - National Institute of …

Harmful algal blooms pose particular challenges for small drinking water systems. In this month’s small systems webinar, EPA Environmental Engineer Nicholas Dugan will review the removal capacities of common processes used in drinking water treatment, present a strategy for evaluating an existing treatment facility, and discuss how to use this information to improve a facility’s performance. Heather Raymond of Ohio EPA’s Division of Drinking and Ground Waters will cover source and finished water monitoring options and their limitations and benefits. Bonus—Attendees have the option of receiving a certificate for one continuing education contact hour for each webinar.

Harmful Algal Blooms - A Toxic Hazard in the …

Cleaning up drinking water after a harmful algal bloom can cost billions of dollars, and local economies can suffer. The U.S. tourism industry alone loses close to $1 billion each year when people choose not to fish, go boating or visit areas that have been affected. It’s one of our country’s biggest and most expensive environmental problems. It’s also a particularly tough one, since nutrients can travel from far upstream and in runoff, and collect in quieter waters like lakes or along coastlines.

harmful algal blooms | The EPA Blog

For example, recognizing the potential health and economic consequences of disruptions to municipal water supplies, we have partnered with Ohio EPA and the U.S. Geological Survey to conduct studies aimed at helping water treatment facilities cope with water quality changes in their water sources, and to optimize treatment to reduce risks associated with harmful algal blooms, also known for the acronym “HABs.”

Understanding algal blooms – SJRWMD

Most algae species are not harmful, but sometimes certain types can bloom in excessive amounts and cause severe damage to human health, aquatic ecosystems, and local economies. Harmful algal blooms (HABs), algae that produce unhealthy toxins, cause problems across the nation. EPA researchers are looking for ways to eliminate or reduce the negative effects of HABs.

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