TITLE:
Indoor Formaldehyde Pollution and Its Influencing Factors of Newly Decorated Residential Buildings in Kunshan City, Jiangsu Province
AUTHORS:
Xiaojun Liang, Baoying Zhang, Kewei Wang, Xinyi Ji, Zhengxiang Geng, Cheng’e Chen
KEYWORDS:
Newly Decorated, Residential Houses, Formaldehyde Concentration, Influencing Factors
JOURNAL NAME:
Current Urban Studies,
Vol.10 No.2,
June
15,
2022
ABSTRACT: 40 newly decorated residences in Kunshan city were selected and
investigated. Formaldehyde concentrations were detected in the winter (January
to February) and summer (July to August) respectively in 2019. A total of 324
indoor air samples were collected from 162 sampling sites. The average
formaldehyde concentration was (0.0219 ± 0.0119) mg/m3 and (0.0963 ±
0.1072) mg/m3 in winter and summer respectively, the concentration
in summer is higher than in winter with a significant difference (Z = -5.484, P 3, 10.4
times higher than the relevant standard. The seasonal formaldehyde
distributions were not different by type of residence, residence grade, bedroom
number, decoration style, floor space, decoration costs, whether occupancy at
detection and heating mode (P >
0.05). The formaldehyde concentrations in summer were different between types
of rooms (H = 8.800, P = 0.030) and whether most furniture was new (Z =
9.259, P P P P = 0.841). The average days from complete decoration to
formaldehyde detection were 130.1 and 303.3 d in
winter and summer. It was not found that the formaldehyde concentration
decreased with the extension of days after renovation in the two seasons (P > 0.0.05).