将PM与PM进行比较
Therese Nitter Moazami1, Kristin V Hirsch Svendsen1, Morten Buhagen2
1Department of Industrial Economics and Technology Management (IØT), Norwegian University of Science and Technology (NTNU), 7491, Trondheim, Norway.
Heliyon
|June 5, 2023
概括
与重力测量样本相比,DustTrak DRX监视器在测量尘埃度时显示了不准确的情况. 总尘埃读数需要一个校正系数,以准确评估职业暴露限值.
科学领域:
- 职业健康和安全问题 职业健康和安全问题
- 环境监测 环境监测
- 工业卫生 工业卫生
背景情况:
- 实时尘埃监测器为职业暴露评估提供了潜在的优势.
- 传统的重力测量采样是测量尘埃度的标准.
- 评估实时监控器的准确性对于可靠的暴露评估至关重要.
研究的目的:
- 为了评估DustTrak DRX监控器与重力测量样本的精度.
- 确定实时监控器对于职业粉尘暴露监测的适用性.
- 为了研究DustTrak DRX与不同灰尘材料的性能.
主要方法:
- 暴露室实验进行了19天,每天进行4小时的测量.
- 将DustTrak DRX实时监控数据与传统的重力测量样本进行了比较.
- 用于青和乳糖粉中的两种石矿物质被用作暴露材料.
主要成果:
- 在DustTrak DRX中,高估了PM2.5和可呼吸尘埃的度.
- 总尘埃度被DustTrak DRX低估了近两倍的因素.
- DustTrak DRX和重力测量样本之间的差异每天和根据材料而异.
结论:
- 对于DustTrak DRX的总尘埃读数,建议使用至少2的校正系数.
- 实时监控器可以识别暴露源,并有助于控制策略的评估.
- 当使用DustTrak DRX进行职业暴露分析时,需要仔细解释和潜在验证.
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