Quality of 260 Indoor Air Samples After Housing Renovation

Objectives  To investigate the pollution of indoor air after housing renovation in Meijiang district of Meizhou City, and to provide evidences for the control of indoor air quality.

Methods  Investigating and analyzing the concentration of formaldehyde, benzene, toluene, xylene in the indoor air of 260 rooms within 85 houses after housing renovation in 2011-2013.

Results  The over standard rate was 36.47%(31/85) for all houses and was 25.77%(67/260) for all rooms. The over standard rate for formaldehyde was the highest in all tested items, which was 24.62%(65/260) for rooms, and the concentration of formaldehyde in 56.92%(37/65) of over standard rooms was in the range of 0.11~0.21 mg/m³.The over standard rate was 50.00%(31/62) in summer; 46.15%(18/39) for family house in all houses and 42.86%(6/14) for beauty parlor in all public places.

Conclusions  The residents in Meijiang district paid less attention to the quality of indoor air after housing renovation. It is suggested that not using newly renovated rooms until at least 3-6 months after housing renovation. More ventilation should be had for newly renovated rooms, especially in the summer and autumn, to ensure the good quality of indoor air.