Abstract: As a type of typical persistent toxic substances, polycyclic aromatic hydrocarbons, have always been the hot spot and key point in the environmental field. However, the reports on derivatives of polycyclic aromatic hydrocarbons, especially the alkyl and nitro polycyclic aromatic hydrocarbons in the atmosphere, are still sparse. In this work, the atmospheric particulate were collected in Diaolongzui site in Laizhou Bay and 16 parent polycyclic aromatic hydrocarbons(PAHs), 12 alkylated polycyclic aromatic hydrocarbons (A-PAHs), and 25 nitrated polycyclic aromatic hydrocarbons (N–PAHs) were determined. The results indicate that the Σ₁₆PAHs concentrations range from 517.2 to 64124.8 pg/m³, the Σ₁₂A–PAHs concentrations range from 273.6 to 5897.3 pg/m³, and the Σ₂₅N–PAHs concentrations range from 113.5 to 1032.3 pg/m³. The concentrations and pollution patterns of the three types of polycyclic aromatic hydrocarbons show obvious seasonal variation characteristics. Among them, the proportion of PAHs, A–PAHs and N–PAHs of ring 2 and 3 is relatively high in summer, while the proportion of monomers with ring 4 and above is relatively high in winter. The characteristic ratios of PAHs indicate that the sources of PAHs in Diaolongzui area are mainly from diesel commission, coal and biomass combustion. The significant negative correlations between Σ₁₆PAHs、Σ₁₂A–PAHs and Σ₂₅N–PAHs (R² = 0.94, p < 0.01; R² = 0.61, p < 0.01; R² = 0.74, p < 0.01) indicate that the temperature is a major factor affecting the adsorption of aromatic hydrocarbons by particulate matter. Furthermore, the Pearson correlation between the three types aromatic hydrocarbons also indicate that PAHs and their derivatives exhibit a same sources and a similar environmental behaviors.