Sixteen parent PAHs and twelve nitro-PAHs were measured in PM2.5 samples collected over one year (2013–2014) at nine urban sites in China. During the sampling period, concentrations of individual nitro-PAHs were one or two orders of magnitude lower than their parent PAHs. Typical seasonal vari...
Interest in this field has increased after episodes of extreme weather and under climate change scenarios10. Although consensus regarding the adverse influence of cold and hot temperatures has been reached, these associations remain to be explored in further detail. For instance, uncertainty regarding ...