Particulate matter concentration and related factors in accommodation places in 2016-2021
10.3969/j.issn.1006-2483.2023.05.012
- VernacularTitle:2016—2021年住宿场所颗粒物浓度及相关因素分析
- Author:
Dongjuan HUANG
1
;
Shaoyan YE
1
;
Yanfei LI
1
Author Information
1. Liuzhou Center of Disease Control and Prevention , Liuzhou , Guangxi 545000 , China
- Publication Type:Journal Article
- Keywords:
Accommodation place;
Particulate matter;
Influencing factors
- From:
Journal of Public Health and Preventive Medicine
2023;34(5):56-59
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the indoor particulate matter concentration in accommodation places in Liuzhou City, and to analyze the change rule and influencing factors of the concentration. Methods Eighteen hotels in Liuzhou were selected as monitoring objects by stratified random sampling method, and indoor particulate matter concentration and related factors were monitored from 2016 to 2021. Results The indoor PM2.5 concentration was 33(20-49) μg/m3, and the qualified rate was 89.1%. The concentration of PM10 was 70 (42-102) μg/m3, and the qualified rate was 88.6%. There were significant differences in indoor PM2.5 and PM10 mass concentration and qualification rate in different years (P<0.05). The indoor PM2.5 and PM10 concentrations were the highest in winter and spring, and the lowest in summer, with a statistically significant difference (P<0.05). Compared with the mass concentration of particulate matter in different levels of accommodation, the concentration of particulate matter in three stars and above was the lowest, and that in three stars and below was the highest, with a statistically significant difference (P<0.05). Univariate analysis showed that indoor PM2.5 concentration was highly correlated with PM10 concentration (r=0.996, P<0.05). Indoor PM2.5 and PM10 concentrations were positively correlated with CO, total number of bacteria in the air, CO2, and noise, and negatively correlated with temperature. Multivariate regression analysis showed that there was a high positive correlation between indoor PM2.5 and PM10 mass concentrations, which was correlated with seasons (P<0.05). Conclusion From 2016 to 2021, indoor particulate pollution exists in accommodation places in Liuzhou, but the pollution is relatively light. The mass concentration decreases and the qualification rate increases year by year. There is a high positive correlation between indoor PM2.5 and PM10 mass concentrations.
