User profiles for H. A. Nel

Holly Nel

Centre for Environment, Fisheries and Aquaculture Science
Verified email at cefas.co.uk
Cited by 1897

Gathering at the top? Environmental controls of microplastic uptake and biomagnification in freshwater food webs

S Krause, V Baranov, HA Nel, JD Drummond… - Environmental …, 2021 - Elsevier
Microplastics are ubiquitous in the environment, with high concentrations being detected
now also in river corridors and sediments globally. Whilst there has been increasing field …

Microplastics in freshwater sediments: Analytical methods, temporal trends, and risk of associated organophosphate esters as exemplar plastics additives

S Onoja, HA Nel, MAE Abdallah, S Harrad - Environmental Research, 2022 - Elsevier
It has been estimated that over 28 million tonnes of plastics end up in water bodies annually.
These plastics degrade into microplastics (MPs), which along with microbeads and MPs …

Sinks and sources: Assessing microplastic abundance in river sediment and deposit feeders in an Austral temperate urban river system

HA Nel, T Dalu, RJ Wasserman - Science of the Total Environment, 2018 - Elsevier
Microplastics are important novel pollutants in freshwaters but their behaviour in river sediments
is poorly understood due to the large amounts of coloured dissolved organic matter that …

A quantitative analysis of microplastic pollution along the south-eastern coastline of South Africa

HA Nel, PW Froneman - Marine pollution bulletin, 2015 - Elsevier
The extent of microplastic pollution (< 5 mm) in the southern hemisphere, particularly southern
Africa, is largely unknown. This study aimed to evaluate microplastic pollution along the …

Do microplastic loads reflect the population demographics along the southern African coastline?

HA Nel, JW Hean, XS Noundou, PW Froneman - Marine Pollution Bulletin, 2017 - Elsevier
… of time and effort, thus thanks to Lynne Nel and Brett Couthard for joining the Ballito sampling
… Additional thanks to Denmar Nel and Rogan Harmer for providing accommodation, during …

Significance of hyporheic exchange for predicting microplastic fate in rivers

JD Drummond, HA Nel, AI Packman… - … Science & Technology …, 2020 - ACS Publications
Microplastics are abundantly found in streambed sediments, including both small and low-density
particles of neutral and positive buoyancy. Although the flow of water into streambed …

Detection limits are central to improve reporting standards when using Nile red for microplastic quantification

HA Nel, AJ Chetwynd, L Kelleher, I Lynch, I Mansfield… - Chemosphere, 2021 - Elsevier
HA Nel), suggesting that density separation is enough to reduce inclusion of these particle
types as false positives. It may under such conditions be possible to also detect PET, which …

[HTML][HTML] Prevailing impacts of river management on microplastic transport in contrasting US streams: Rethinking global microplastic flux estimations

…, SF Murphy, L Kelleher, GHS Smith, HA Nel… - Water Research, 2023 - Elsevier
While microplastic inputs into rivers are assumed to be correlated with anthropogenic activities
and to accumulate towards the sea, the impacts of water management on downstream …

An untargeted thermogravimetric analysis-fourier transform infrared-gas chromatography-mass spectrometry approach for plastic polymer identification

HA Nel, AJ Chetwynd, CA Kelly, C Stark… - Environmental …, 2021 - ACS Publications
Reliable chemical identification of specific polymers in environmental samples represents a
major challenge in plastic research, especially with the wide range of commercial polymers …

Citizen science reveals microplastic hotspots within tidal estuaries and the remote Scilly Islands, United Kingdom

HA Nel, GHS Smith, R Harmer, R Sykes… - Marine Pollution …, 2020 - Elsevier
The identification of microplastic hotspots is vital to our long-term understanding of their
environmental fate and distribution. Although case studies have increased globally, sampling …