Robotic Direct Reading Device with Spatial, Temporal, and PID Sensors for Laboratory VOC Exposure Assessment

Details

• Personal Author:
  Brown KK ; Neu, Dylan T. ; Norton AE ; Shaw, Peter B.
• Description:
  This study evaluated a novel robotic direct reading method that used a real-time location system to measure the spatial-concentration distribution of volatile organic compounds (VOCs) in a chemistry laboratory. The CEMWIP II is a custom-made sensor that measures VOCs, temperature, humidity, and location, sending data wirelessly in real time to a remote location for display and storage. In this study, the CEMWIP II device was mounted on a robotic platform to create a CEMWIP II-mobile platform. The autonomous mobile platform was released from a corner of the room and allowed to travel randomly along an open floor with the goal of characterizing the spatial distribution of VOCs and identifying their sources in the laboratory. The experiment consisted of 12 runs made of permutations of four corner release sites and four beaker locations, with two beakers containing water and two containing the solvent acetone. The autonomous mobile platform was tasked with locating the two beakers of acetone. The sensor had a detection limit of 100?ppb and the confidence of detecting a source within a 1.46 m2 area was p = 0.0005 by ANOVA. The CEMWIP II-mobile platform was able to measure the spatial distribution of VOCs within a laboratory that were associated with open solvent containers. [Description provided by NIOSH]
• Subjects:
  Acetone Environmental Exposure Humidity Laboratories Occupational Health Safety Solvents Volatile Organic Compounds
• Keywords:
  Author Keywords: CEMWIP Chemicals Direct Reading Exposure Assessment Exposure Levels Mobile Equipment Real-time Location System Risk Assessment Robotic Robotics Sensors Temperature Measurement VOC VOCs Volatile Organic Compounds

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• ISSN:
  1545-9624
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DFSE - Division of Field Studies and Engineering ; HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  16
• Issue:
  11
• NIOSHTIC Number:
  nn:20057694
• Citation:
  J Occup Environ Hyg 2019 Nov; 16(11):717-726
• Contact Point Address:
  Kenneth Brown, NIOSH/HELD/CMBM, 1090 Tusculum (MS-7), Cincinnati, Ohio 45226
• Email:
  krb1@cdc.gov
• CAS Registry Number:
  Acetone (CAS RN 67-64-1)
• Federal Fiscal Year:
  2020
• Peer Reviewed:
  True
• Source Full Name:
  Journal of Occupational and Environmental Hygiene
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:538cf7080980d64f37b873addea76f6190f92bd1a377caff189bb5e4bbce9f1272db4948c42c1b685e9fddf54c9ce32353492b089d459cf138c940e8664b2c83
• Download URL:
  https://stacks.cdc.gov/view/cdc/214952/cdc_214952_DS1.pdf
• File Type:
  [PDF - 1.61 MB ]