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Air Monitoring Technology
Prepared for Environmental Defense Fund Los Angeles, California Prepared by Ramboll Environ US Corporation San Francisco, California Project Number 0342333A Date December, 2017 TECHNOLOGY ASSESSMENT REPORT: AIR MONITORING TECHNOLOGY NEAR UPSTREAM OIL AND GAS OPERATIONS ENVIRONMENTAL DEFENSE FUND LOS ANGELES, CALIFORNIA Technology Assessment Report: Air Monitoring Technology Near Upstream Oil and Gas Operations Environmental Defense Fund Los Angeles, California CONTENTS 1. INTRODUCTION 1 1.1 Objectives of this Report 1 2. HISTORICAL APPROACHES TO AMBIENT AIR MONITORING NEAR UPSTREAM OIL AND GAS OPERATIONS 2 2.1 Pollutants of Interest 2 2.2 Regulatory Framework 4 2.3 Episodic/Ad-hoc Monitoring Plans 6 3. PARADIGM SHIFT TO UTILIZE LOWER COST SENSORS 10 3.1 Current State of Sensor Science and Performance Evaluations 11 3.2 Emerging Capabilities of Networked or Crowdsourced Sensors Utilizing Data Analytics 13 4. CHALLENGES 14 5. OVERVIEW OF PRIMARY SENSING CATEGORIES 15 6. DETAILED REVIEWS OF AVAILABLE AND EMERGING TECHNOLOGIES 22 6.1 Mobile Platforms 22 6.2 Sensor Technologies 23 6.2.1 Mid-range Cost 24 6.2.1.1 Open Path Fourier Transform Infrared Spectroscopy (OP-FTIR) 24 6.2.1.2 Tunable Diode Laser Absorption Spectroscopy (TDLAS) 26 6.2.1.3 Cavity-Enhanced Absorption Spectroscopy/Cavity Ring Down Spectroscopy 29 6.2.1.4 Handheld Gas Chromatographs 31 6.2.2 Low Cost 33 6.2.2.1 Non-dispersive Infrared Sensor (NDIR) 33 6.2.2.2 Photoionization Detector (PID) 35 6.2.2.3 Electrochemical (EC) 38 6.2.2.4 Metal Oxide Semiconductor (MOS) 40 6.2.2.5 Pellistor 43 7. -
Components for Evaluation of Direct-Reading Monitors for Gases and Vapors
A NIOSH TECHNICAL REPORT Components for Evaluation of Direct-Reading Monitors for Gases and Vapors DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention National Institute for Occupational Safety and Health Components for Evaluation of Direct-Reading Monitors for Gases and Vapors DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention National Institute for Occupational Safety and Health This document is in the public domain and may be freely copied or reprinted. DISCLAIMER Mention of any company or product does not constitute endorsement by the National Institute for Occupational Safety and Health (NIOSH). In addition, citations to Web sites external to NIOSH do not constitute NIOSH endorsement of the sponsoring organizations or their programs or prod- ucts. Furthermore, NIOSH is not responsible for the content of these Web sites. All Web addresses referenced in this document were accessible as of the publication date. ORDERING INFORMATION To receive documents or other information about occupational safety and health topics, contact NIOSH at Telephone: 1–800–CDC–INFO (1–800–232–4636) TTY: 1–888–232–6348 E-mail: [email protected] or visit the NIOSH Web site at www.cdc.gov/niosh. For a monthly update on news at NIOSH, subscribe to NIOSH eNews by visiting www.cdc.gov/niosh/eNews. DHHS (NIOSH) Publication No. 2012–162 July 2012 ii Components for Evaluation of Direct Reading Monitors FOREWORD The Occupational Safety and Health Act of 1970 (Public Law 91–596) assures, insofar as possible, safe and healthful working conditions for every working man and woman in the Nation. -
SEMICONDUCTOR GAS SENSORS This Page Intentionally Left Blank Woodhead Publishing Series in Electronic and Optical Materials
SEMICONDUCTOR GAS SENSORS This page intentionally left blank Woodhead Publishing Series in Electronic and Optical Materials SEMICONDUCTOR GAS SENSORS Second Edition Edited by RAIVO JAANISO University of Tartu, Tartu, Estonia OOI KIANG TAN Nanyang Technological University, Singapore Woodhead Publishing is an imprint of Elsevier The Officers’ Mess Business Centre, Royston Road, Duxford, CB22 4QH, United Kingdom 50 Hampshire Street, 5th Floor, Cambridge, MA 02139, United States The Boulevard, Langford Lane, Kidlington, OX5 1GB, United Kingdom Copyright © 2020 Elsevier Ltd. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Details on how to seek permission, further information about the Publisher’s permissions policies and our arrangements with organizations such as the Copyright Clearance Center and the Copyright Licensing Agency, can be found at our website: www.elsevier.com/permissions. This book and the individual contributions contained in it are protected under copyright by the Publisher (other than as may be noted herein). Notices Knowledge and best practice in this field are constantly changing. As new research and experience broaden our understanding, changes in research methods, professional practices, or medical treatment may become necessary. Practitioners and researchers must always rely on their own experience and knowledge in evaluating and using any information, methods, compounds, or experiments described herein. In using such information or methods they should be mindful of their own safety and the safety of others, including parties for whom they have a professional responsibility. -
Review of Portable and Low-Cost Sensors for the Ambient Air Monitoring of Benzene and Other Volatile Organic Compounds
sensors Review Review of Portable and Low-Cost Sensors for the Ambient Air Monitoring of Benzene and Other Volatile Organic Compounds Laurent Spinelle 1 , Michel Gerboles 1,* , Gertjan Kok 2, Stefan Persijn 2 and Tilman Sauerwald 3 1 European Commission—Joint Research Centre, 21027 Ispra, Italy; [email protected] 2 VSL Dutch Metrology Institute, 2629 JA Delft, The Netherlands; [email protected] (G.K.); [email protected] (S.P.) 3 Laboratory for Measurement Technology, Universitaet des Saarlandes, 66123 Saarbruecken, Germany; [email protected] * Correspondence: [email protected]; Tel.: +39-332-78-5652 Received: 26 April 2017; Accepted: 23 June 2017; Published: 28 June 2017 Abstract: This article presents a literature review of sensors for the monitoring of benzene in ambient air and other volatile organic compounds. Combined with information provided by stakeholders, manufacturers and literature, the review considers commercially available sensors, including PID-based sensors, semiconductor (resistive gas sensors) and portable on-line measuring devices as for example sensor arrays. The bibliographic collection includes the following topics: sensor description, field of application at fixed sites, indoor and ambient air monitoring, range of concentration levels and limit of detection in air, model descriptions of the phenomena involved in the sensor detection process, gaseous interference selectivity of sensors in complex VOC matrix, validation data in lab experiments and under field conditions. Keywords: PID based sensors; semiconductor and amperometric sensor; mini GC; portable on-line measuring devices; benzene; volatile organic compounds 1. Introduction Volatile organic compounds (VOCs) are hazardous compounds that may cause damage to humans with chronic exposure [1].