Carbonaceous particles are an important component of the atmospheric aerosol particles and important for global climate change,air quality and human health.The PM_(10) single particles from two environmental monitor locations and seven pollution emission sources were analyzed using scanning proton microprobe(SPM) techniques.The concentration of carbon in individual particles was quantitatively determined by proton non-Rutherford elastic backscattering spectrometry(EBS).The results of this investigation show...