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Ascension Automated Depth Sampler

 for Microplastics

Easily monitor freshwater and marine microplastic pollution down to 400 meter depths

Remove Barriers To Collect Microplastics At Depth

Microplastic pollution threatens freshwater and marine environments. To inform and monitor effective solutions, researchers and community scientists need more reliable data.

Since studies suggest that 99.8% of oceanic plastic sinks below the ocean's surface, it's crucial to collect and analyze microplastics at depth—something that has traditionally been extremely challenging. 

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View of the Ascension depth sampler from below as it is lowered into the ocean from a small boat

Easily Monitor Microplastic Pollution

Ascension is a portable, automated instrument capable of collecting 7 separate filtered microplastic samples per deployment down to 400-meter depths from the side of a small vessel or fixed installation. Filtering water directly in situ, Ascension significantly increases microplastic monitoring capabilities.

Collect Reliable Data

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Operate in real-time deployment mode or upload an automated mission for autonomous time-series sampling 

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Avoid sample contamination risks with in-situ filtration

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Recharge the battery to maximize deployment time and reduce primary battery waste

Manually lower and raise through the water column by hand; no need for winch systems

Capture conductivity, temperature, salinity,  depth and filtration volumes in real time with the on-board CTD sensor and flow meter

Easy for anyone to use; no confusing terminal commands or highly technical training required

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Collect up to 7 samples in a single deployment

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Product Specifications

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Dry Weight: 10 Kg (22 lbs)   
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Depth Rating: 400m  
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Tether Length: 50, 100 or 200 m  
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Battery: 266 W-Hr. rechargeable LIPO batter  
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External Sensors: Star-Oddi DST DCT Online  
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Temperature Range: -1°C to +40°C (30°F to 104°F)  
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Temperature Resolution: 0.032°C (0.058°F)  
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Temperature Accuracy: +/- 0.1°C (0.18°F)  
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Depth Range: 5-500m  
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Depth Resolution: 0.03% of depth range  
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Depth Accuracy: +/- 0.6% of depth range  
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Salinity Range: 3-68 mS/cm  
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Salinity Resolution: 0.02 PSU  
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Salinity Accuracy: +/- 1 PSU  
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Acceptable Filter Pore Size: >10 µm  
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Pump Type: High flow impeller 
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Flow Meter Range: 0.2 – 4.5 litres per minute  
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Typical Flow Rates: 0.5 – 4.5 litres per minute  
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Flow Meter Accuracy: +/- 1.5%  
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Number of Filter Channels: 7  
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System Requirements: Windows 10/11 laptop with Bluetooth capability 

Automation, real-time sensing capabilities and in-situ filtration

Ascension microplastics sampler

Case Studies

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Ascension for National Microplastics Monitoring Framework

In collaboration with the National Research Council of Canada, Ascension is being used to monitor microplastics across Canada and establish a national microplastics monitoring framework.

Learn More >
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Ascension Helps to Uncover Microplastic Exposure in Humpback Whales

Researchers from the University of British Columbia use Ascension off the coast of Vancouver Island to study microplastics and marine mammals.

Read the Story >

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