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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Policy & Risk Sign in to save

Resuspension of microplastics and microrubbers in a semi-arid urban environment (Shiraz, Iran)

Environmental Pollution 2022 22 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Sajjad Abbasi, Sajjad Abbasi, Andrew Turner Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Nafiseh Khodabakhshloo, Nafiseh Khodabakhshloo, Nafiseh Khodabakhshloo, Nafiseh Khodabakhshloo, Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Sajjad Abbasi, Andrew Turner Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Sajjad Abbasi, Andrew Turner Andrew Turner Andrew Turner Nafiseh Khodabakhshloo, Andrew Turner Nafiseh Khodabakhshloo, Andrew Turner Andrew Turner Sajjad Abbasi, Sajjad Abbasi, Andrew Turner Andrew Turner Nafiseh Khodabakhshloo, Andrew Turner Sajjad Abbasi, Nafiseh Khodabakhshloo, Sajjad Abbasi, Sajjad Abbasi, Andrew Turner Sajjad Abbasi, Andrew Turner Nafiseh Khodabakhshloo, Nafiseh Khodabakhshloo, Nafiseh Khodabakhshloo, Sajjad Abbasi, Sajjad Abbasi, Andrew Turner Sajjad Abbasi, Nafiseh Khodabakhshloo, Sajjad Abbasi, Sajjad Abbasi, Andrew Turner Andrew Turner Andrew Turner Nafiseh Khodabakhshloo, Nafiseh Khodabakhshloo, Sajjad Abbasi, Andrew Turner Sajjad Abbasi, Andrew Turner Sajjad Abbasi, Andrew Turner Andrew Turner Sajjad Abbasi, Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Sajjad Abbasi, Andrew Turner Andrew Turner Andrew Turner Andrew Turner Sajjad Abbasi, Sajjad Abbasi, Sajjad Abbasi, Andrew Turner Andrew Turner Andrew Turner Andrew Turner

Summary

Researchers quantified airborne microplastics and microrubbers in road dust across Shiraz, Iran, finding significant resuspension of particles up to 177 cm above road level, highlighting an underappreciated exposure pathway for urban populations.

Although airborne urban particles are a concern for air quality and human health, little information exists on the levels and characteristics of microplastics (MPs) and microrubbers (MRs) in this setting. In the present study, MPs and MRs are quantified and characterised in road dusts and accumulations captured passively (and up to elevations of 177 cm above road level) in the steps of utility poles at 18 locations throughout the city of Shiraz, southwest Iran. Dust accumulation rates were greatest at road level (median = 45 g m month) and declined with elevation (median = 2.0 g m month at 177 cm). The accumulation rates and concentrations (per g of dust) of MPs and MRs were more variable between locations but accumulation declined with elevation for both particle types and MR concentration (up to ∼27,000 MR g) was always greater than corresponding MP concentration (up to ∼3300 MP g). Increasing elevation was also accompanied by an increasing proportion of fine (≤100 μm) and fibrous particles, and in particular for MPs. Fractionation in the quantities and characteristics with elevation above road level are attributed to the extent of resuspension of MPs and MRs from the road surface by wind and passing traffic, with aerodynamic considerations predicting the greatest and most widespread resuspension of fibrous MPs. The fractionation of MPs and MRs with elevation above road level also results in different exposures for adults and children.

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