Biocidal sprays are frequently used by consumers in indoor areas to control pests.To obtain data on indoor contaminations, different insecticide aerosol sprays were applied in furnished model rooms (40 m~3). On the one hand, the sprays were used according to the manufacturers' instructions (spraying for about 10-20 sec), and on the other hand under worst-case conditions (spraying for 2 min). Within two weeks, four spray applications with correct use and three worst-case applications were performed. Indoor air was collected a) during the spraying process, b) 2-4 h after spraying (in case of correct use the room was ventilated for 30 min), and c) about two weeks after the last application. The applied sprays contained ⅰ) tetramethrin/d-phenothrin (0.15 g/0.15 g), ⅱ) pyrethrum extract/PBO (0.25 g/lg), and ⅲ) chlorpyrifos/bioallethrin/PBO (0.5 g/0.15 g.s.) per 100 g spray. During spraying, concentrations of biocides in the air (mean values from 3 or 4 measurements) ranged from 100-1020 μg/m~3 for correct use (290-6020 μg/m3 for worst case). Highest concentrations of 2510 μg/m~3 (10340 μg/m~3) were measured for the synergist PBO. Two to four h after application, concentrations of the active ingredients in the indoor air were down to 0.1-0.8% (1-11% for worst case). Three weeks after the last application, concentrations between 0.02-1 μg/m3 were measured for both scenarios. To determine the surface load, pads of filter paper were placed horizontally at different positions in the room. The amounts of active ingredients were determined at different times (after first and last applications and about two weeks later). Concentrations varied from 10-480 ng/cm~2 (70-5700 ng/cm~2 for worst case) for biocides and from 300-2260 ng/cm~2 (1000-16500 ng/cm~2 for worst case) for PBO. After 2 weeks, bioallethrin had been degraded, the other biocide concentrations were down to 10-40% (40-70% for worst case). The PBO value remained constant over time.
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机译：消费者经常在室内区域使用杀虫喷雾剂来控制害虫。为了获得有关室内污染的数据，在配备家具的样板间（40 m〜3）中使用了不同的杀虫剂喷雾剂。一方面，根据制造商的说明使用喷雾剂（喷雾时间约10-20秒），另一方面，在最坏情况下使用喷雾剂（喷雾2分钟）。在两周内，进行了四次正确使用的喷涂和三次最坏情况的喷涂。 a）在喷涂过程中收集室内空气，b）喷涂后2-4小时（在正确使用的情况下，房间通风30分钟），以及c）最后一次喷涂后约两周。所施加的喷雾剂包含ⅰ）毒菊酯/ d-吩草苷（0.15 g / 0.15 g），ⅱ）除虫菊提取物/ PBO（0.25 g / lg）和ⅲ）毒死rif /生物菊酯/ PBO（0.5 g / 0.15 g / ns） 100克喷雾剂。在喷涂过程中，正确使用的空气中杀菌剂的浓度（3或4次测量的平均值）在100-1020μg/ m〜3的范围内（最坏情况为290-6020μg/ m3）。增效剂PBO的最高浓度为2510μg/ m〜3（10340μg/ m〜3）。施用后2至4小时，室内空气中的活性成分浓度降至0.1-0.8％（最坏情况为1-11％）。上次施用后三周，两种情况下的浓度都在0.02-1μg/ m3之间。为了确定表面负荷，将滤纸垫水平放置在房间的不同位置。在不同的时间（第一次和最后一次施用后以及大约两周后）确定活性成分的量。杀菌剂的浓度范围从10-480 ng / cm〜2（最坏情况为70-5700 ng / cm〜2）和300-2260 ng / cm〜2（最坏情况为1000-16500 ng / cm〜2）。 PBO。 2周后，生物菊酯已降解，其他杀生物剂的浓度降至10-40％（最坏情况为40-70％）。 PBO值随时间保持恒定。
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