Nine PAHs were surveyed in communication air of Hangzhou. The results indicated that the PAHs pollution is very serious and the total sum of 9 PAHs, on the average are 3.39-13.82 μg/m 3. The PAHs signatures for all streets are similar to each other. Multivariate statistical techniques were used to investigate source apportionment for PAHs. A factor analysis/multiple regression model was successfully applied to the study. The most important three PAHs sources in communication air are diesel emission, gasoline engine emission, coal burning accounting for 61.1±6.4%, 19.9±8.3%, 10.8±10.8% of total PAHs, respectively. The relationship for three source tracers and total PAHs is: [PAHs] =1.471(±0.155)[Phen] + 2.538 (±2.522)[1-Mepy]+2.254 (±0.943)[Chry]+1.022 (±1.767).
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机译:Do Regional Integration Plans Promote Joint Prevention and Control of Air Pollution? - Lessons from China’s Major City Clusters =区域一体化进程带给大气污染联防联控的契机和挑战 - 基于中国国家级城市群发展的研究