Author response for "Microplastics and PMT plastic-associated chemicals as co-contaminants in ice shaving waste from an urban ice rink"

Microplastics and PMT plastic-associated chemicals as co-contaminants in ice shaving waste from an urban ice rink.

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Scientists testing ice shavings from a Toronto ice rink (the leftover snow from resurfacing machines) found surprisingly high levels of tiny plastic particles and plastic-related chemicals, likely coming from the rink's equipment and surfaces. This matters because that waste ice is often dumped into sewers or outdoors, meaning these contaminants could be leaking into our water systems and environment—and with nearly 8,000 rinks across Canada alone, this could add up to a much bigger pollution source than anyone realized.

Author response for "Microplastics: Sources, Environmental Fate, Degradation Pathways, and Analytical Identification Methods – A Review"

Comparative Analysis of Contamination with Microplastic Particles of Ice in the Curonian Lagoon (Baltic Sea) and Novik Bay (Sea of Japan)

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Researchers compared microplastic contamination in ice cores from two geographically distant sites — the Baltic Sea and the Sea of Japan — finding that even frozen coastal environments accumulate plastic particles ranging from 0.3 to 5 mm. The presence of microplastics in ice from both regions suggests contamination has reached remote and seasonally frozen aquatic environments.

Microplastics in Urban Environments: Sources, Pathways, and Distribution

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Researchers mapped the major sources and pathways of microplastic pollution in cities, finding that tire wear, laundry wastewater, landfills, and construction activity collectively make urban areas major generators of the microplastics that flow into surrounding air, water, and soil.

Effects of Microplastics in the Cryosphere

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Microplastics have been detected at surprisingly high concentrations in the cryosphere — glaciers, sea ice, and polar snow — with melting ice acting as a release mechanism that redistributes accumulated plastics into freshwater and marine systems. This finding means climate change and plastic pollution are compounding threats, as warming accelerates the release of long-stored microplastic reservoirs into ecosystems.