Nutrient Monitoring

The Importance of Nutrient Monitoring

Continuous monitoring of nutrient levels, nitrogen and phosphorus, provides crucial information about daily, seasonal and event-based changes in water quality conditions, and can be a strong indicator on the overall health of the water body.

Under certain conditions, such as warm, sunny weather and slow-moving water, elevated nutrient concentrations can promote the growth of nuisance phytoplankton causing algal blooms (eutrophication) which can dramatically affect aquatic ecology, and in extreme cases, prevent photosynthesis. Algae, and the bacteria that feed on decaying algae, produce toxins. In combination, these two effects can lower dissolved oxygen levels, killing fish and other organisms. Harmful algal blooms (HABs) therefore represent a major threat to water resources.

OTT HydroMet offers several solutions for long-term unattended measurement of nitrate and phosphate in real-time, while HYDROLAB multiparameter sondes have several sensor options for nutrient measurement as well.

OTT HydroMet’s Nutrient Monitoring Insights

Stay on top of the issue by discovering current and future trends of nutrient monitoring.

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Nutrient Monitoring Related Resources

Algae measurements using Vivo Fluorescence

“Algae Measurements Using in Vivo Fluorescence” Whitepaper

In this whitepaper we discuss variables that affect in vivo measurements, the role HYDROLAB® sondes play, and best practices to enhance overall data quality.

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Nutrient chart

Nutrient Monitoring Comparison Chart

Use our Nutrient Monitoring Comparison Chart to compare available solutions to determine the best choice for you.

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Harmful Algal Blooms

On-Demand Webinar: Harmful Algal Blooms, Pt. 1

In the first installment of this two part webinar series, we answer the most pressing questions about harmful algal blooms, including: who is affected, contributing factors, triggers, and monitoring.

Watch Webinar

Bridge

On-Demand Webinar: Harmful Algal Blooms, Pt. 2

In the second installment of this two part webinar series, we answer the most pressing questions about harmful algal blooms, including: who is affected, contributing factors, triggers, and monitoring.

Watch Webinar

In the Field

Nutrient Monitoring in Foreman Branch

Nutrient Monitoring in Foreman Branch in Support of the Chester River Watershed Observatory

The Chester River Watershed Observatory (CRWO), Washington College, Sea-Bird Coastal and Hach HydroMet have developed a real-time nutrient and water quality monitoring platform to evaluate the use of direct water monitoring in collaboration with a working farm. Read about how watershed water quality can now be supported by direct in-situ nutrient and water quality measurements.

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Nutrient Monitoring in Northern Florida

Nutrient Monitoring in Northern Florida

In the karst springs of northern Florida, nutrient monitoring was utilized to deliver real-time nitrate and phosphate analysis for ecosystem modeling. Learn how the Satlantic SUNA and WET Labs Cycle-PO4 have opened up new avenues for understanding how river ecosystems process nutrients.

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Puget Sound

Measuring Nitrate in Puget Sound Using Optical Sensors

In this case study, the SUNA nitrate sensor performed as a robust tool to measure nitrate concentrations in oceanic and freshwater environments. Learn how this team used the appropriate calibrations and corrections to conduct long-term marine monitoring to assess baseline conditions and trends in Central Puget Sound.

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