Characteristics of volatile organic compounds at hotels in Southern China

Abstract

There has been a growing development of hotels in Southern China recently. Meanwhile, the indoor air quality of the hotels has become an important issue. This study aimed to characterize the volatile organic compounds (VOCs) found in the indoor air in 13 new hotels in Southern China. A 2-day non-simultaneous sampling was carried out in each of the hotels. Decorating materials, cleansing agents and even local regional pollutants outside the hotels could have a contribution and worsen indoor air quality. Toluene level was as high as 498 μg/m3 in a hotel fitted with lots of plywood products. The highest concentrations of methylene chloride (34 μg/m3) and total carbonyls (517 μg/m3) were detected in a hotel where high VOCs cleansing agents were used in guest rooms. In another hotel located in an industrial centre, acetone concentration of 102 μg/m3 was observed. The second highest total VOCs concentration (445 μg/m3) was observed in a newly renovated hotel. Wooden interior fixtures and wall panels were identified as the major sources of VOCs and carbonyls found inside the guest rooms.