Roy M. Harrison

TL;DR: The Po valley in northern Italy is renowned for its high air pollutant concentrations, and measurements from a background site in Modena, a town of 200 thousand inhabitants within the Po valley, are analysed, showing a strong seasonality with higher concentration in winter and lower concentration in summer and spring.

TL;DR: Wang et al. as mentioned in this paper developed a combined method to investigate source types of PM 2.5 and its source regions during winter 2016 in Beijing, which include the receptor model (positive matrixfactorization, PMF), footprint and an air quality model.

TL;DR: In this paper, the fragmentation patterns of molecules in mass spectrometers using electron impact ionization at 70 eV can be useful for molecule identification, provided a match is available in a published EI MS library, but are indistinguishable for many isomeric organic compounds.

TL;DR: In this article, the authors evaluated the performance and the uncertainty of receptor models (RMs) in intercomparison exercises employing real-world and synthetic input datasets and concluded that RMs are capable of estimating the contribution of the major pollution source categories over a given time window with a level of accuracy that is in line with the needs of air quality management.

TL;DR: Significant correlations were observed between the oxidant generating potential and all toxicological endpoints investigated, which demonstrates that measurement of the oxidation generating potential by ESR represents a sensitive method to estimate the toxic potential of PM.