High Anthropogenic Organic Matter Inputs during a Festival Increase River Heterotrophy and Refractory Carbon Load

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F20%3A43901154" target="_blank" >RIV/60076658:12520/20:43901154 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1021/acs.est.0c02259" target="_blank" >https://doi.org/10.1021/acs.est.0c02259</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.est.0c02259" target="_blank" >10.1021/acs.est.0c02259</a>

Result language

angličtina

Original language name

High Anthropogenic Organic Matter Inputs during a Festival Increase River Heterotrophy and Refractory Carbon Load

Original language description

Streams and rivers metabolize dissolved organic matter (DOM). Although most DOM compounds originate from natural sources, recreational use of rivers increasingly introduces chemically distinct anthropogenic DOM. So far, the ecological impact of this DOM source is not well understood. Her; we show that a large music festival held adjacent to the Traisen River in Austria increased the river&apos;s dissolved organic carbon (DOC) concentration from 1.6 to 2.1 mg L-1 and stream ecosystem respiration from -3.2 to -4.5 mg L-1. The DOC increase was not detected by sensors continuously logging absorbance spectra, thereby challenging their applicability for monitoring. However, the fluorescence intensity doubled during the festival. Using parallel factor analysis, we were able to assign the increase in fluorescence intensity to the chemically stable UV-B filter phenylbenzimidazole sulfonic acid, indicating organic compounds in sunscreen and other personal care products as sources of elevated DOC. This observation was confirmed by liquid chromatography coupled with mass spectrometry. The elevated respiration is probably fueled by anthropogenic DOM contained in beer and/or urine. We conclude that intense recreational use of running waters transiently increases the anthropogenic DOM load into stream ecosystems and alters the fluvial metabolism. We further propose that chemically distinct, manmade DOM extends the natural range of DOM decomposition rates in fluvial ecosystems.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Environmental Science &amp; Technology

ISSN

0013-936X

e-ISSN

—

Volume of the periodical

54

Issue of the periodical within the volume

16

Country of publishing house

US - UNITED STATES

Number of pages

10

Pages from-to

10039-10048

UT code for WoS article

000563025000030

EID of the result in the Scopus database

2-s2.0-85089644919