To explore the blocking impact of plant communities on atmospheric particulate matters,we monitored the PM_2.5 and PM₁₀ concentrations and related meteorological factors near plant communities in three functional areas of Zhengzhou's Jinshui district,which were garden area (Digital Park),residential area (Zhengzhou Blue Bay),and cultural & educational area (Henan Agricultural University).The monitoring period covered a whole winter from December 2020 to February 2021.The results indicated that the diurnal variation trends of PM_2.5 and PM₁₀ concentrations were basically the same for all sampling plots,which were generally high in early morning and low in evening;obvious differences in PM_2.5 and PM₁₀ concentrations were observed among plant communities,which were most significant between the square plot and other plots;for the three functional areas,the blocking of PM_2.5 and PM₁₀ were all the strongest by the combined structure of arbor,shrub and grass,followed by arbor & shrub and arbor & grass structures,and the lowest by structure of shrub & grass and single structure of grass;the PM_2.5 and PM₁₀ concentrations were observed to be negatively correlated with temperature and wind speed,and positively correlated with relative humidity.