Taking the atmosphere of a typical eco-tourism city as the research object, the methods of correlation analysis, principal component analysis, and multi- variate statistical analysis are used to study air pol- lutants. The results show that the main pollutants have obvious temporal and spatial changes with sea- sonal changes. The annual average mass concentra- tions of PM10, PM2.5, SO2, NO2, and O3 are (55±19.3), (28±12.4), (18±8.1), (28±5.7), (22 ± 4.7) ug/m3, respectively, all in line with the national sec- ondary standards (GB3095-2012). During the study period, important meteorological factors such as air pressure, temperature, wind speed and humidity had significant effects on the five air pollutants; there were also extremely significant or significant effects among the five air pollutants. Except summer, the value of PM2.5 is greater than the value of PM10 in the other three seasons, which shows that PM2.5 is more harmful to human health than PM10.
展开▼
