Investigation of alkyl, aryl, and chlorinated OPFRs in
sediments from estuarine systems: Seasonal variation, spatial
distribution and ecological risks assessment

J 2024

Investigation of alkyl, aryl, and chlorinated OPFRs in sediments from estuarine systems: Seasonal variation, spatial distribution and ecological risks assessment

OLISAH, Chijioke; Gletwyn RUBIDGE; Lucienne R. D. HUMAN a Janine B. ADAMS

Základní údaje

Originální název

Investigation of alkyl, aryl, and chlorinated OPFRs in sediments from estuarine systems: Seasonal variation, spatial distribution and ecological risks assessment

Autoři

OLISAH, Chijioke; Gletwyn RUBIDGE; Lucienne R. D. HUMAN a Janine B. ADAMS

Vydání

Environmental Research, SAN DIEGO, ACADEMIC PRESS INC ELSEVIER SCIENCE, 2024, 0013-9351

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 7.700

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/24:00136661

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Organic contaminants; Pollution sources; Ecotoxicology; Organophosphate flame retardants; Estuaries

Štítky

143180, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 4. 8. 2024 21:36, Mgr. Michaela Hylsová, Ph.D.

Anotace

V originále

Estuaries in South Africa are very important for biodiversity conservation and serve as focal points for leisure and tourism activities. The organophosphate flame retardants (OPFRs) levels in these aquatic systems haven't been documented in any studies as of yet. Due to the negative effects of persistent organic pollutants in South African estuaries, we examined the occurrence of eight OPFRs in sediments of two estuaries by studying their spatiotemporal distribution, season variation, and ecological risks. The Sundays Estuary (SDE), a semi-urbanized agricultural surrounding system, recorded an Sigma 8OPFR concentration in sediments that ranged from 0.71 to 22.5 ng/g dw, whereas Swartkops Estuary, a largely urbanized system, recorded a concentration that ranged from 0.61 to 119 ng/g dw. Alkyl-OPFRs were the prevalent homologue in both estuaries compared to the chlorinated and aryl groups. While TBP, TCPP, and TCrP were the most abundant compounds among the homologue groups. There was no distinct seasonal trend of Sigma 8OPFR concentration in either estuary, with summer and autumn seasons recording the highest concentrations in SDE and SWE, respectively. Ecological risks in the majority of the study sites for the detected compounds were at low (RQ < 0.1) and medium levels (0.1 <= RQ < 1) for certain species of fish, Daphnia magna and algae. However, the cumulative RQs for all the compounds had Sigma RQs >= 1 for most sites in both estuaries, indicating that these organisms, if present in both estuaries, may be exposed to potential ecological concerns due to accumulated OPFR chemicals. The scope of future studies should be broadened to include research areas that are not only focus on the bioaccumulation patterns of these compounds but also find sustainable ways to reduce them from these estuarine environments.

Citovat

OLISAH, Chijioke; Gletwyn RUBIDGE; Lucienne R. D. HUMAN a Janine B. ADAMS. Investigation of alkyl, aryl, and chlorinated OPFRs in sediments from estuarine systems: Seasonal variation, spatial distribution and ecological risks assessment. Environmental Research. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE, 2024, roč. 250, June 2024, s. 1-11. ISSN 0013-9351. Dostupné z: https://doi.org/10.1016/j.envres.2024.118465.

@article{2421462,
   author = {Olisah, Chijioke and Rubidge, Gletwyn and Human, Lucienne R. D. and Adams, Janine B.},
   article_location = {SAN DIEGO},
   article_number = {June 2024},
   doi = {https://doi.org/10.1016/j.envres.2024.118465},
   keywords = {Organic contaminants; Pollution sources; Ecotoxicology; Organophosphate flame retardants; Estuaries},
   language = {eng},
   issn = {0013-9351},
   journal = {Environmental Research},
   title = {Investigation of alkyl, aryl, and chlorinated OPFRs in sediments from estuarine systems: Seasonal variation, spatial distribution and ecological risks assessment},
   url = {https://www.sciencedirect.com/science/article/pii/S0013935124003694?via%3Dihub},
   volume = {250},
   year = {2024}
}

TY  - JOUR
ID  - 2421462
AU  - Olisah, Chijioke - Rubidge, Gletwyn - Human, Lucienne R. D. - Adams, Janine B.
PY  - 2024
TI  - Investigation of alkyl, aryl, and chlorinated OPFRs in sediments from estuarine systems: Seasonal variation, spatial distribution and ecological risks assessment
JF  - Environmental Research
VL  - 250
IS  - June 2024
SP  - 1-11
EP  - 1-11
PB  - ACADEMIC PRESS INC ELSEVIER SCIENCE
SN  - 00139351
KW  - Organic contaminants
KW  - Pollution sources
KW  - Ecotoxicology
KW  - Organophosphate flame retardants
KW  - Estuaries
UR  - https://www.sciencedirect.com/science/article/pii/S0013935124003694?via%3Dihub
N2  - Estuaries in South Africa are very important for biodiversity conservation and serve as focal points for leisure and tourism activities. The organophosphate flame retardants (OPFRs) levels in these aquatic systems haven't been documented in any studies as of yet. Due to the negative effects of persistent organic pollutants in South African estuaries, we examined the occurrence of eight OPFRs in sediments of two estuaries by studying their spatiotemporal distribution, season variation, and ecological risks. The Sundays Estuary (SDE), a semi-urbanized agricultural surrounding system, recorded an Sigma 8OPFR concentration in sediments that ranged from 0.71 to 22.5 ng/g dw, whereas Swartkops Estuary, a largely urbanized system, recorded a concentration that ranged from 0.61 to 119 ng/g dw. Alkyl-OPFRs were the prevalent homologue in both estuaries compared to the chlorinated and aryl groups. While TBP, TCPP, and TCrP were the most abundant compounds among the homologue groups. There was no distinct seasonal trend of Sigma 8OPFR concentration in either estuary, with summer and autumn seasons recording the highest concentrations in SDE and SWE, respectively. Ecological risks in the majority of the study sites for the detected compounds were at low (RQ < 0.1) and medium levels (0.1 <= RQ < 1) for certain species of fish, Daphnia magna and algae. However, the cumulative RQs for all the compounds had Sigma RQs >= 1 for most sites in both estuaries, indicating that these organisms, if present in both estuaries, may be exposed to potential ecological concerns due to accumulated OPFR chemicals. The scope of future studies should be broadened to include research areas that are not only focus on the bioaccumulation patterns of these compounds but also find sustainable ways to reduce them from these estuarine environments.
ER  -

OLISAH, Chijioke; Gletwyn RUBIDGE; Lucienne R. D. HUMAN a Janine B. ADAMS. Investigation of alkyl, aryl, and chlorinated OPFRs in sediments from estuarine systems: Seasonal variation, spatial distribution and ecological risks assessment. \textit{Environmental Research}. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE, 2024, roč.~250, June 2024, s.~1-11. ISSN~0013-9351. Dostupné z: https://doi.org/10.1016/j.envres.2024.118465.

Přehled o publikaci