Determination of ozone removal rates by selected building products using the FLEC emission cell

被引：62

作者：

Kleno, JG ^{[1
]}

Clausen, PA ^{[1
]}

Weschler, CJ ^{[1
]}

Wolkoff, P ^{[1
]}

机构：

[1] Natl Inst Occupat Hlth, DK-2100 Copenhagen O, Denmark

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2001年 / 35卷 / 12期

关键词：

D O I：

10.1021/es000284n

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Ozone removal by 16 aged (older than 1-120 months) but unused building products or materials was studied in a test system that included the field and laboratory emission cell (FLEC). The ozone removal was studied at 50 +/- 1 ppb ozone, a relative humidity of 50 +/- 5%, a temperature of 21 +/- 2 degreesC, and an air flow rate of 900 +/- 10 mL min(-1) through the FLEC lair velocity ca. 3 cm s(-1)). The ozone removal increased rapidly during the first 1-2 min and either remained at a constant level or decreased asymptotically to reach a steady state-like value. The ozone removal profiles for a given material showed good repeatability during replicate experiments. Ozone deposition velocities for the building products were calculated to be between 0.0007 cm s(-1) (lacquered ash) and 0.8 cm s(-1) (unpainted gypsum board).

引用

页码：2548 / 2553

页数：6

共 23 条

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