Introduction to Aeroqual CB Confidential 2017

Aeroqual in numbers 2001 Founded by Prof. David Williams and Dr Geoff Henshaw 2017 New global HQ in Auckland, New Zealand #1 Most Innovative Product, NZ High Tech Awards 2016 10,000 More than 10,000 instruments in use around the world 7 Patents covering sensor fabrication, instrument design 25 % of global revenue in China, our most important market 2017

Our Customers

Aeroqual service centres in more than 50 countries Our Presence Aeroqual service centres in more than 50 countries

Application: Shaoxing EPA 100 x Aeroqual PM2.5 monitors Lower cost but high accuracy and correlation to standard methods Now Shaoxing Prefecture can rank PM2.5 levels in every county Capacity to add ozone in future

Application: Tianjin EPA Tianjin Port explosion 1 x Aeroqual compact monitoring station (PM2.5, PM10, O3, SO2, CO, NO2) Fast to set up for short term monitoring Tianjin EPA could give public reassurance about air quality levels after the blast

Our Products Product Handhelds Dust Monitors AQS 1 AQM 65 Station Gases NO2, CO, SO2, H2S, CO2, O3, NH3, NMHC, VOC N/A O3 NO2, NOx, CO, SO2, H2S, CO2, O3, NH3, VOC Particulate TSP, PM10, PM2.5, PM1 Environmental Temp, RH Noise, solar, wind, rain, temp, RH, pressure

Target Markets Government EPAs Industrial Parks / Sites Supplement or extend the existing reference network Mobile and hot spot monitoring Special purpose / location monitoring Industrial Parks / Sites Real time monitoring allows immediate response Demonstrate impact on local receptors / compliance Corporate Social Responsibility Air Quality Consultants Tools for deployment on multiple client projects Increased temporal and spatial analysis Baseline EIA studies Universities and Research Introduce practicalities of air quality cost effectively Advance epidemiological research through higher temporal and spatial resolution

AQM 65 – Near-Reference compact air quality monitoring station Benefits Continuously measure up to 10 gases and particulate pollutants Continuously monitor up to 10 environmental parameters Small size opens up new monitoring locations Easy to install and start measuring in less than one hour Measure, log, report and respond all in real-time Near-Reference data accessed remotely via direct or cloud Remotely configure, diagnose, and adapt via online interface Modular design allows for ease of maintenance and repairs Integrated automated calibration optional Part-per-billion detection of O3, NO2, NOX, SO2, H2S and VOCs Traceable to EPA 40 CFR Part 53 and EU 2008/50/EC instruments Applications Urban air monitoring networks National air monitoring networks Roadside air monitoring Industrial perimeter monitoring Environmental impact assessments Watch the AQM 65 video

Inside the AQM 65

How is the AQM 65 different? Assess and select best of breed sensors e.g. GSS for O3, NO2, NOx, GSE for CO Add scrubbers and zero cycle to remove interferences and correct for drift Maintain sensors at a constant temperature +/- 0.2 degrees C Field calibration against Standard Reference Materials.

Traditional vs Aeroqual Traditional Fixed Stations Aeroqual AQM 65 US$ 80-100K to install US$ 10K per year to run Large site requirements High power consumption Skilled expertise to operate Limited sampling density Reference data “A+” More than 5x lower cost More than 5x less to run Compact and relocatable Low power requirements Easy to operate remotely High density networks possible Near-Reference data “A”

Other Sensors vs Aeroqual Low cost sensors Aeroqual AQM 65 US$10K to install Variable data quality Unproven in hot, humid, and cold climates Sensors replaced 6 – 12 months Unable to measure ozone US$30K to install Near reference data quality Temperature controlled (-35°C to 50°C) Sensor modules serviced 12-24 months Excellent ozone measurement

Beijing EMC Trial 3 x AQM 65 co-located with Thermo Fisher China / EU / US EPA certified analyzers for 1 month in April 2016.

Carbon Monoxide – hourly data 1-month 3 x AQM 65 to Thermo Reference

Carbon Monoxide – Correlation 1-month 3 x AQM 65 to Thermo Reference

1-month 3 x AQM 65 to Thermo reference Ozone – hourly data 1-month 3 x AQM 65 to Thermo reference

1-month 3 x AQM 65 to Thermo Reference Ozone – Correlation 1-month 3 x AQM 65 to Thermo Reference

1-month 3 x AQM 65 to Thermo reference PM2.5 – Correlation 1-month 3 x AQM 65 to Thermo reference

1-month 3 x AQM 65 to Thermo Reference PM2.5 – Correlation 1-month 3 x AQM 65 to Thermo Reference

International Air Quality Standards Comparison Between Aeroqual AQM 65 Performance Specifications and Common Ambient Air Quality Standards Pollutant   AQM 65 Calibrated Range Limit of Detection EU Standards (2008/50/EC) US EPA (NAAQS) WHO Guidelines (AQG 2005) Carbon monoxide CO 0-25 ppm (0-29 mg/m3) <0.04 ppm (<0.05 mg/m3) 10 mg/m3 / 8h 9 ppm / 8h (10 mg/m3) - Ozone O3 0-0.5 ppm (1000 µg/m3) 0.001 ppm (2 µg/m3) 200 µg/m3 / 1h 120 µg/m3 / 8h 0.075 ppm / 8h (157 µg/m3) 100 µg/m3 / 8h Nitrogen dioxide NO2 0-0.2 ppm (380 µg/m3) (1.9 µg/m3) 40 µg/m3 / 1y 0.053 ppm / 1y (100 µg/m3) Nitrogen oxides NOx Sulfur dioxide SO2 0-10 ppm 0.009 ppm (25 µg/m3) 350 µg/m3 / 1h 125 µg/m3 / 24h 0.14 ppm / 24h (365 µg/m3) 500 µg/m3 / 10m 125 µg/m3 / 24h1 50 µg/m3 / 24h2 20 µg/m3 / 24h Particulate matter PM10 0-2000 µg/m3 1 µg/m3 50 µg/m3 / 24h 150 µg/m3 / 24h 150 µg/m3 / 24h1 100 µg/m3 / 24h2 75 µg/m3 / 24h3 PM2.5 25 µg/m3 / 24h 35 µg/m3 / 24h 75 µg/m3 / 24h1 37.5 µg/m3 / 24h3 1 Interim target-1 (IT-1) – formerly WHO AQG 2000 2 Interim target-2 (IT-2) 3 Interim target-2 (IT-3)

PM2.5 / PM10 Monitoring BENEFITS Continuous real-time measurement of TSP, PM10, PM2.5 or PM1 Compact and light enough to be carried by one person Quick and easy to install and relocate Flexible integration of meteorological and noise sensors Huge on-board data storage capacity for long term fail safe monitoring Multiple data retrieval options: cellular, cloud, SCADA, RF Robust, lockable enclosure with solar shields MCERTS certified by UK Environment Agency APPLICATIONS Construction dust monitoring Industrial perimeter monitoring Roadside monitoring Short term baseline studies Research and consultancy projects

Dust Sentry Case Study – Tonglu 15 Dust Sentry PM2.5 Installed October 2015 Provides PM2.5 data across the County Supports 2 x Tonglu reference TEOMs Coldest temperatures reached -15°C

Tonglu Field Data

AQS 1: real-time, Near-Reference PM2.5 / O3 monitoring BENEFITS Cost effective PM2.5 and O3 monitoring Continuous real-time measurement Small enough to be carried by one person Quick and easy to install and relocate Easy to integrate meteorological and noise sensors Huge on-board data storage for fail safe monitoring Retrieve data remotely via WIFI, Ethernet, cellular Remotely configure and diagnose instrument Optional Email / SMS alerts and FTP data export Robust, lockable enclosure with solar shields.

AQS 1, Test Sites GEORGIA, USA ZHEJIANG, CHINA Co-located at Georgia Environmental Protection Division’s South De Kalb air monitoring site O3 reference: Thermo 49C PM2.5 reference: BAM1020 Trial period: 26 Sept to 23 Oct Max temp. 31.7°C , min 5.9°C ZHEJIANG, CHINA Co-located with Zhejiang Environmental Monitoring Bureau station O3 reference: Thermo 49C PM2.5 reference: Thermo 5014i Trial period: 26 Aug to 25 Sept Max temp. 34.1°C, min 18.8°C

AQS 1, Zhejiang O3 Test Data R2 = 0.97

AQS 1, Zhejiang PM2.5 Test Data R2 = 0.78

Factory calibration Calibration is a significant production cost. Slope and intercept variation distributed around 1 and 0 with a normal distribution. Tradeoff: time vs accuracy. Existing process for O3: sd at zero = 2 ppb sd of slope = 0.03

Calibration process Sensors are batch calibrated. Each sensor has its own individual calibration uploaded and stored in onboard memory Slope and zero follow a normal distribution and acceptance is determined by +/- 1 σ. For O3 calibration σslope < 0.03 σzero < 2 ppb

Aeroqual instrument management software for PC, phone, tablet Watch introduction to Aeroqual Cloud

Remote technical support, analytics and data management

Keep in touch Aeroqual Limited 460 Rosebank Rd Avondale Auckland New Zealand Phone: +64 9 623 3013 Email sales@aeroqual.com www.aeroqual.com ID: cmrbeck

World city Dubai uses Near-Reference air monitoring network by Aeroqual For a third of the cost of traditional stations Dubai Municipality could install and operate 12 Aeroqual Near-Reference AQM stations since 2010.

New York City DEP chooses Aeroqual for supplementary air monitoring NYC Environmental Protection chose the Aeroqual AQM 65 for effective collection of Near-Reference air data as an alternative to traditional stations.