Microplastics: An introduction to environmental transport processes
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Citations
Atmospheric microplastics: A review on current status and perspectives
Microplastics in the environment: A critical review of current understanding and identification of future research needs
Understanding plastic degradation and microplastic formation in the environment: A review
Removal of microplastics from the environment. A review
Dispersion, Accumulation, and the Ultimate Fate of Microplastics in Deep-Marine Environments: A Review and Future Directions
References
On the quantity and composition of floating plastic debris entering and leaving the Tamar Estuary, Southwest England.
Process, form and change in dryland rivers: a review of recent research
How well is microlitter purified from wastewater? – A detailed study on the stepwise removal of microlitter in a tertiary level wastewater treatment plant
A homologue of the Parkinson's disease-associated protein LRRK2 undergoes a monomer-dimer transition during GTP turnover.
A theoretical assessment of microplastic transport in river catchments and their retention by soils and river sediments
Related Papers (5)
Frequently Asked Questions (10)
Q2. How many tons of microplastics are added to agricultural soils each year?
It is estimated that throughout Europe, between 125-90 850 tons of microplastics per million inhabitants are added annually to agricultural soils as a 91 result of sewage sludge application.
Q3. What is the common source of microplastics in the atmosphere?
Microplastics in the atmosphere 148It has recently been recognised that due to their lightweight nature, many microplastic 149 particles will become suspended and transported within the air as ‘urban dust’.31, 32 These 150commonly originate from road dust (e.g. tyre and paint particles) and fibres from synthetic 151 textiles, especially from soft furnishings5, 33 and can lead to deposition of microplastics to land 152 or aquatic environments.
Q4. How can plastics be transported to the freshwater environment?
107Larger plastic items can enter the freshwater environment through inadequate waste 108 disposal, either through littering or loss from landfill and transported from land via wind or 109surface runoff.
Q5. How do they affect their transport and retention in sediments?
45 200The density and shape of microplastic particles will have important effects on their 201 transport and retention in sediments.
Q6. How many microplastic particles can be removed from the wastewater stream?
Wastewater treatments plants are quite effective at removing 88 microplastic particles from the wastewater stream, often with ~99% removal,18-20 and many of 89 these particles will settle to the sludge.
Q7. How many tonnes of plastic waste is retained in the European continent?
17 Horton et al.21 calculated that 473,000-910,000 metric 92 tonnes of plastic waste is retained within European continental environments (terrestrial and 93 freshwater) annually, which includes microplastics derived from sewage sludge, in addition to 94 predicted inputs of litter and inadequately managed waste.
Q8. What is the role of air currents in the transport of microplastics?
160161 3. Transport processes 162It is widely considered that the ocean represents a sink for a large proportion of 163 microplastics, with the terrestrial and freshwater environments acting as important sources 164 and pathways for microplastics to the sea.4, 35 Due to their lightweight nature and potential for 165 widespread dispersal it is also likely that air currents act as a means of particulate transport, 166 contributing to microplastic contamination on land and within aquatic systems.
Q9. how many plastic particles will settle out in river bed sediments?
Despite the buoyancy of many plastics, where river energy drops, for 192 example in slow-moving sections of water, it is likely that microplastics will settle out along 193 with sinking sediment particles.
Q10. What is the common name for polystyrene?
218219Polymer name Abbreviation Density (g/cm3) Polystyrene (non-expanded) PS 1.04-1.08 a Expanded polystyrene EPS 0.015-0.03 b Low-density polyethylene LDPE 0.89-0.94 a High-density polyethylene HDPE 0.94-0.97 a Polypropylene PP 0.89-0.91 a Polyvinyl chloride PVC 1.3-1.58 a Polyethylene terephthalate PET 1.29-1.4 a Polyester - 1.01-1.46 a Polyamide (nylon) - 1.13-1.35 c220Table 1. Densities of commonly-used polymers.