Paper · 2026 · BioResources

Assessment of heavy metal contamination in the Düzce watershed (Türkiye) and sustainable remedies through aquatic flora

Ahmet Ayteğin; Mehmet Özcan

9
claims
14
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by

Abstract

Heavy metal pollution in the Düzce watershed of Türkiye was assessed and the phytoremediation potential of native aquatic plants was evaluated. The majority of heavy metals were found in water within legal limits, except for cadmium concentrations, which exceeded water quality standards; the main pollution load was accumulated in bottom sediments. Dominant wetland plants were analyzed to establish species-specific and tissue-specific metal accumulation patterns. Key species included Plantago major and Paspalum distichum with impressive copper accumulation capacity that may possibly classify them as good candidates for biomonitoring and phytoremediation applications. The results scientifically substantiate the use of local aquatic vegetation for ecological restoration efforts throughout Türkiye and similar regions as it pertains not merely to pollution mitigation but also a circular economy via the metal-accumulating plant biomass, which can serve these species afterward as sustainable resources for bioenergy production and biobased materials after phytoremediation activities. This brings forth new approaches to thinking about cleaning up an environment while recovering resources from polluted water ecosystems at the same time.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 9

Observationobservedoriginal resultmeasured

Claim · model-written summary

Most heavy metals in Düzce watershed water were within legal limits.

Outcome
heavy metals were found in watere1
Qualifier
within legal limitse1
Setting
Düzce watershede0

Not reportedTaxon

Verbatim

e0

“Heavy metal pollution in the Düzce watershed of Türkiye was assessed”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e1

“The majority of heavy metals were found in water within legal limits, except for cadmium concentrations, which exceeded water quality standards”

✓ located verbatim in the source · abstract, characters 144–287 · show in text ↑

schema checkedfield values found in the cited quotesPermalinkReport an issue

Observationobservedoriginal resultmeasured

Claim · model-written summary

Cadmium concentrations in Düzce watershed water exceeded water quality standards.

Outcome
cadmium concentrationse1
Direction
exceedede1
Comparator
water quality standardse1
Setting
Düzce watershede0

Not reportedTaxon

Verbatim

e0

“Heavy metal pollution in the Düzce watershed of Türkiye was assessed”

✓ located verbatim in the source · abstract, characters 0–68 · show in text ↑
e1

“The majority of heavy metals were found in water within legal limits, except for cadmium concentrations, which exceeded water quality standards”

✓ located verbatim in the source · abstract, characters 144–287 · show in text ↑

schema checkedfield values found in the cited quotesPermalinkReport an issue

Observationobservedoriginal resultmeasured

Claim · model-written summary

The main heavy metal pollution load in the Düzce watershed accumulated in bottom sediments.

Outcome
main pollution loade2
Qualifier
accumulated in bottom sedimentse2

Not reportedTaxon

Verbatim

e2

“the main pollution load was accumulated in bottom sediments”

✓ located verbatim in the source · abstract, characters 289–348 · show in text ↑

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Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Plantago major has an impressive copper accumulation capacity.

Taxon
Plantago majorPlantago majore3
Outcome
copper accumulation capacitye3
Qualifier
impressivee3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Plantago major
Plantago major · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e3

“Key species included Plantago major and Paspalum distichum with impressive copper accumulation capacity”

✓ located verbatim in the source · abstract, characters 467–570 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Paspalum distichum has an impressive copper accumulation capacity.

Taxon
Paspalum distichumPaspalum distichume3
Outcome
copper accumulation capacitye3
Qualifier
impressivee3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Paspalum distichum
Paspalum distichum · TaxonJohn Robert McPherson · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e3

“Key species included Plantago major and Paspalum distichum with impressive copper accumulation capacity”

✓ located verbatim in the source · abstract, characters 467–570 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Plantago major may be a good candidate for biomonitoring and phytoremediation.

Taxon
Plantago majorPlantago majore3
Outcome
good candidates for biomonitoring and phytoremediatione4
Qualifier
may possiblye4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Plantago major
Plantago major · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e3

“Key species included Plantago major and Paspalum distichum with impressive copper accumulation capacity”

✓ located verbatim in the source · abstract, characters 467–570 · show in text ↑
e4

“may possibly classify them as good candidates for biomonitoring and phytoremediation applications”

✓ located verbatim in the source · abstract, characters 576–673 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Paspalum distichum may be a good candidate for biomonitoring and phytoremediation.

Taxon
Paspalum distichumPaspalum distichume3
Outcome
good candidates for biomonitoring and phytoremediatione4
Qualifier
may possiblye4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Paspalum distichum
Paspalum distichum · TaxonJohn Robert McPherson · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e3

“Key species included Plantago major and Paspalum distichum with impressive copper accumulation capacity”

✓ located verbatim in the source · abstract, characters 467–570 · show in text ↑
e4

“may possibly classify them as good candidates for biomonitoring and phytoremediation applications”

✓ located verbatim in the source · abstract, characters 576–673 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Local aquatic vegetation should be used for ecological restoration efforts in Türkiye and similar regions.

Taxon
local aquatic vegetatione5
Outcome
use of local aquatic vegetation for ecological restoration effortse5

Verbatim

e5

“substantiate the use of local aquatic vegetation for ecological restoration efforts”

✓ located verbatim in the source · abstract, characters 702–785 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Metal-accumulating native aquatic plant biomass can serve as a sustainable resource for bioenergy and biobased materials after phytoremediation.

Taxon
native aquatic plantse7
Outcome
sustainable resources for bioenergy production and biobased materialse6
Qualifier
after phytoremediation activitiese6

Verbatim

e6

“can serve these species afterward as sustainable resources for bioenergy production and biobased materials after phytoremediation activities”

✓ located verbatim in the source · abstract, characters 951–1091 · show in text ↑
e7

“the phytoremediation potential of native aquatic plants was evaluated”

✓ located verbatim in the source · abstract, characters 73–142 · show in text ↑