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Microplastic Contamination of Urban Streams in the Auckland Region, New Zealand
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Researchers studied microplastic contamination in urban streams across the Auckland region of New Zealand, though the full findings are restricted to authenticated university members and the detailed results are not publicly available.
Full text is available to authenticated members of The University of Auckland only.
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Microplastic pollution in urban streams across New Zealand: concentrations, composition and implications
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Microplastic pollution was surveyed across urban streams throughout New Zealand, with plastic fragments and fibers detected at alarming concentrations in many waterways. The study highlights the widespread contamination of freshwater systems in New Zealand and identifies key sources including stormwater runoff and wastewater.
Microplastic contamination in Auckland (New Zealand) beach sediments
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Researchers conducted the first large-scale investigation of microplastic contamination in beach sediments across 39 sites in Auckland, New Zealand, finding contamination at the majority of beaches surveyed. Mean abundance varied by coastal environment type, with estuarine and harbour sites generally showing higher concentrations than open ocean beaches.
Microplastic pollution in streams spanning an urbanisation gradient
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Researchers sampled microplastics in small streams across an urbanization gradient and found contamination at all sites, with concentrations comparable to those in larger rivers and lakes. Fragments and small particles between 63 and 500 micrometers were the most common forms detected. Surprisingly, catchment-scale factors like population density and stormwater overflows did not predict microplastic levels well, suggesting that local-scale sources may be more important for pollution in small streams.
Microplastic contamination in the Avon/Ōtākaro River, Christchurch, New Zealand.
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Researchers collected sediment samples from six zones along the Avon/Ōtākaro River in Christchurch, New Zealand, finding 156 microplastic particles with a mean abundance of 5.2 particles per 100g of sediment. PET was the most common polymer, and microplastic concentrations increased in the lower, more urbanized reaches of the river.
Abundances and characteristics of small (< 0.3 mm) and large (0.3–5 mm) microplastics found in Aotearoa New Zealand beach sediments
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Researchers conducted the first study of microplastic contamination in New Zealand waters, finding that both small (under 0.3 mm) and large (0.3–5 mm) microplastics were present across beach and water samples, with fragment and fiber morphologies dominating the assemblage.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.