[Coral-List] sunscreens threaten coral survival

[Willa Lane]

For those who are interested in an overview of environmentally detected UV
filter concentrations, including BP3 (oxybenzone), I recommend reading the
open-access "A Critical Review of Organic Ultraviolet Filter Exposure,
Hazard, and Risk to Corals" (Mitchelmore et al., 2021):
https://setac.onlinelibrary.wiley.com/doi/10.1002/etc.4948
<https://setac.onlinelibrary.wiley.com/doi/10.1002/etc.4948.>.

Figure 2 focuses on BP3 concentrations; most studies find concentrations on
the order of 10 – 100 ng/L, although one study reports 1.395 mg/L in the
U.S. Virgin Islands. The study linked below on BP3 conversion to phototoxic
glucoside conjugates in cnidarians used a test concentration of 2 mg/L
(same order of magnitude as the maximum environmentally detected
concentration).

Best, Willa Lane
--
University of Delaware Honors Class of 2023
Marine Biology Major
Planned senior thesis on sunscreen toxicology in algae & cnidarians


> Message: 6
> Date: Fri, 6 May 2022 21:12:53 +0000
> From: "Bargar, Timothy A" <tbargar at usgs.gov>
> To: coral list <coral-list at coral.aoml.noaa.gov>, Douglas Fenner
>         <douglasfennertassi at gmail.com>
> Subject: Re: [Coral-List] [EXTERNAL]  sunscreens threaten coral
>         survival
> Message-ID:
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>
> Doug - thank you for sharing! Very interesting!
>
> The exposure concentration is excessive based on data from our and other
> published monitoring studies, but pretty clearly demonstrates how BP3 can
> be toxic.
> ________________________________
> From: Coral-List <coral-list-bounces at coral.aoml.noaa.gov> on behalf of
> Douglas Fenner via Coral-List <coral-list at coral.aoml.noaa.gov>
> Sent: Thursday, May 5, 2022 7:55 PM
> To: coral list <coral-list at coral.aoml.noaa.gov>
> Subject: [EXTERNAL] [Coral-List] sunscreens threaten coral survival
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> Paywall.
>
> Conversion of oxybenzone sunscreen to phototoxic glucoside conjugates by
> sea anemones and corals
> <
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> see author info for corresponding author
>
> Cheers, Doug