Capsule Dosimeters for Ultraviolet Radiation Measurements on Coral Reefs and in Seawater

This work reports on the new chemical dosimeters for UV radiation dose measurements on coral reefs and in seawater. The proposed dosimeters can measure the actual dose of UV radiation, which consists of 95% UVA and 5% UVB radiation, unlike the currently-used radiometers in marine and ocean waters th...

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Bibliographic Details
Published in:Materials 2023-08, Vol.16 (17), p.5734
Main Authors: Sąsiadek-Andrzejczak, Elżbieta, Jaszczak, Malwina, Kozicki, Marek
Format: Article
Language:English
Subjects:
Aqueous solutions
Coral reefs
Coral reefs and islands
Dosimeters
Ecosystems
Ethylene oxide
Hydrogels
Marine environment
Measurement techniques
Oceans
Optical properties
Ozone
Poloxamers
Polyethylene oxide
Propylene oxide
Radiation dosage
Radiometers
Saline water
Sea-water
Seawater
Temperature effects
Ultraviolet radiation
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Summary:This work reports on the new chemical dosimeters for UV radiation dose measurements on coral reefs and in seawater. The proposed dosimeters can measure the actual dose of UV radiation, which consists of 95% UVA and 5% UVB radiation, unlike the currently-used radiometers in marine and ocean waters that measure the dose of UVA and UVB radiation separately. The dosimeters are composed of water, poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (Pluronic F-127) as a gel matrix, and 2,3,5-triphenyltetrazolium chloride (TTC) as a UV radiation-sensitive compound. In the work, the dosimeters were characterised in terms of their response to the dose of UV radiation depending on the TTC concentration and the irradiation and storage conditions of the dosimeters. The stability of the dosimeters over time was also examined. The obtained results indicate that the TTC-Pluronic F-127 dosimeters can be used to measure absorbed doses of UV radiation in the saltwater environment. The developed dosimeters with a concentration of 0.1% TTC can be used up to 5 J/cm2, which predisposes them to UV radiation measurements at a depth of more than 10 m in sea and ocean waters in 10-min intervals during all months throughout the year.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma16175734