Roy M. Harrison

TL;DR: Single-particle chemical analysis for hundreds of individual atmospheric particles collected over the East China Sea shows that Fe-rich particles from coal combustion and steel industries were coated with thick layers of sulfate after 1 to 2 days of atmospheric residence, providing the “smoking gun” for acid iron dissolution.

TL;DR: In this article, the physical properties of particles in the atmosphere of a UK urban area have been made, including particle number count by condensation nucleus counters with different lower particle size cut-offs; particle size distributions using a Scanning Mobility Particle Sizer; total particle Fuchs surface area using an epiphaniometer and particle mass using Tapered Element Oscillating Micro-balance (TEOM) instruments with size selective (PM 10 and PM 2.5 ) inlets.

TL;DR: In this paper, the authors synthesize and analyse existing knowledge on particles in urban environments with a focus on their number concentration and size distribution, and conclude that the concentrations, modal structures and temporal patterns of urban particles are strongly influenced by traffic emissions.

TL;DR: In this paper, an intensive seasonal sampling campaign was conducted at an urban site in the West Midlands conurbation and simultaneously at a nearby rural location with hi-vol and medium volume samplers modified in order to collect particulate and vapour phase polycyclic aromatic hydrocarbons (PAHs) by means of filters and polyurethane foam plugs (PUFs).

TL;DR: The results suggest the suitability of BaP as a marker for the carcinogenic potential of the PAH mixture irrespective of the environment is likely to be similar whether it is applied to indoor or outdoor air.