Environmental Dust Monitors. ISO 9001 certified ENVIRO. EXPERIENCE AND EXPERTISE SINCE 1981

Transcription

1 Environmental Dust Monitors ENVIRO ISO 9001 certified EXPERIENCE AND EXPERTISE SINCE 1981

2 The Future of Dust and Particle Monitoring Dear readers, I am delighted to find you interested in our Enviro Product Line. Measuring and assessing particulate matter within the ambient air is of prime importance: Limit values set by the World Health Organization (WHO) for human health protection are exceeded worldwide every single day. In highly congested urban areas in particular, the degree of contamination is clearly above those limit values with a serious impact on all those many people subjected to it. In contrast to gaseous airborne pollutants, no minimum threshold can be scientifically defined for fine dust beneath the size of which such dust does not have any further relevance to health. As a consequence, it is our duty and responsibility to reduce particulate matter contamination within the ambient air to a level that is both technically feasible and cost-efficient at the same time. For more than 20 years my work at the Institute for Environmental Protection of the Berlin Technical University focused on measuring and assessing airborne pollutants. Today, different measuring principles and techniques for the determination of atmospheric dust are used in research and in applications: gravimetric sampling (high-volume and lowvolume sampling), beta dust monitors, nephelometers, thermographic, electrostatic and optical methods. Each of these technologies has its advantages and disadvantages, as well as its specific range of applications. Over time, however, a lot has changed: The measuring tasks have become more demanding and consequently the requirements on the necessary measuring technology as well. If in the past monitoring was mainly about staying within dustrelated limit values; today, root cause analyses and finding the sources of fine dust contamination have become the primary targets. Only by being able to properly identify the source of a specific particulate matter contamination, appropriate, costefficient, and long-lasting, effective initiatives can be started in politics. It is not sufficient to learn tomorrow about today s fine dust contamination values; people are entitled to get real-time information about the current fine dust contamination. In addition, mean values on a 24-hour basis do not offer enough information for a precise identification of the contamination sources. Atmospheric processes, such as vertical and horizontal transport and compound processes that have a fundamental influence on the fine dust contamination within the ambient air, obviously show lower time scales (minutes to seconds). As a consequence, measuring technologies with the following characteristics have become indispensible for today's measuring tasks: Dr. Markus Pesch Technical Director GRIMM Aerosol Technik GmbH Continuous measurements with a high temporal resolution (a few seconds up to 30 minutes) Information on the particle mass fractions PM10, PM2.5 and PM1 (to monitor the current and future limit values). Determination of the particle size distribution (to judge its relevance to health and precisely identify the source). Maintenance-free, reliable measuring technologies involving little labor (cost-efficiency). High sensitivity and low levels of detection (reliable determination even at low dust contamination of but a few µg/m³). Our GRIMM optical fine dust measuring equipment was designed to meet all the above mentioned requirements. All our Enviro systems are equipped with the same optical chamber permitting a precise and reliable single particle determination. This optical chamber is currently operating in more than 3,000 devices worldwide and has proven its quality and superiority by successfully passing the European directives for PM10 and PM2.5. With the ability to simultaneously measure dust mass fractions PM10, PM2.5 and PM1 as well as the particle size distribution in up to 31 size channels (simply by switching measuring modes), the operator is well-prepared for all present and future dust measurement tasks and specific root cause analyses. In my capacity as Technical Director of the GRIMM company, I will strive for a continuous development of measurement technologies meeting the highest technical standards and setting the benchmark for what is possible today. Rest assured that through the combined know-how of our engineers and scientists - from the service department to the product development department to R&D - we will provide top quality in all aspects of our product range and services. Our line of Enviro products is currently employed in various fields of application worldwide. I look forward to welcoming you as a new future GRIMM customer. Yours truly,

3 GRIMM s ENVIRONMENTAL DUST MONITORING FAMILY PM, PM, PM (or TSP), TC (total count) - all in real-time Portable Enviro Check GRIMM EDM 107 & EDM 164 (pages 6-7) The EDM 107 (shown on the right) is a small, portable unit measuring 24 x 12x6cm. Battery-operated it is possible to measure PM 10, PM 2.5, PM 1 (or Total Suspended Particles, TSP), and TC (Total Counts) simultaneously for up to 8 hours with a time resolution from 6 seconds on up. Next to it, you can see our EDM 164 outdoor housing with integrated heating to reduce humidity. This compact system has been designed for minimum maintenance. Mobile Professional Enviro Check GRIMM EDM 365 (pages 12-13) With our EDM 365 we set new standards in environmental monitoring! Compared to the portable EDM 107 this stand-alone mini shelter can operate on a continuous basis providing the PM-values of all dust fractions - including semi-volatile compounds -, the GPS position, wind speed, wind direction, precipitation, temperature, and humidity. Even data on nano particles down to 25 nm (mean diameter and total counts) are available and indicative gas sensors can be added as well. All values are automatically transmitted to the data logger or to the www. Stationary Dust Monitor GRIMM EDM 180 (pages 8-11) The EDM 180 Environmental Dust Monitor is a 19" rack-mounted instrument specifically designed for use inside protective housings in conformity with the existing EPA regulations for dust monitoring. As an option, this system can deliver up to 31 particle size channels within a time resolution of 6 seconds. No semivolatile compounds are lost in the process. Approved and officially certified it is the ideal solution for government use in PM monitoring. Wide Range System GRIMM EDM 665 (pages 14-15) Flagship of our Enviro line is the Wide Range Aerosol System EDM 665, the ideal combination of optical and electrical mobility particle sizing. It has been designed for environmental research with a perfect overlap of both technologies in the measuring results. This system automatically determines the size distribution of all aerosols ranging from 5 nm to 30,000 nm in more than 70 different size channels. In addition, it is a stand-alone system with an automatic sample air dehumidification and moisture extraction system incorporated. Thanks to the integrated air conditioning providing uniform operating conditions, the system can be run unsupervised for extended time periods necessitating but one single minor intervention a month. Meteorological sensors as well as GPS and wireless transfer are optionally available.

4 Measuring Principle EDM 365 Features and Options AIR FLOW: TSP PM10 This inlet was designed to meet the requirements defined at the Johannesburg convention. Sample air at a volume flow of 1.2 liter/minute is directly fed into the measuring cell by passing through a TSP (total suspended particles) head and the probe inlet. Thanks to this unique principle none of the GRIMM instruments need any size-selective sample inlets as do all other dust monitors on the market. OPTICAL SYSTEM: The sample air is then passing through the heart of the patented GRIMM spectrometer cell that has been designed as a single particle detection and counting system. As a consequence, we can guarantee that every single particle is measured by the instrument. PM2.5 Measuring Principle Detector Sample air Light trap PM1 90 Scattering angle Mirror TC COUNTS Aperture angle The optical system was optimized in such a way as to ensure that the refractive change (color) is negligible. Even in the nano size range the sensitivity across the size channels an excellent sensitivity is ensured. PM CLASSIFICATIONS: All particles (aerosol) passing through the measurement cell are classified by size distribution into 31 channels. Based on this size distribution principle, we obtained the European Equivalence Approval for PM10 and PM2.5 as well as the US-EPA Approval for PM2.5. The required figures for PM10, PM2.5, as well as for the suggested PM1 are arrived at by multiplying the obtained count concentrations with the corresponding specific density factors then to be added to the total masses of each PM channel. This is all done automatically by the instrument. SVC MONITORING: NANO One of the main problems in measuring ambient air is high humidity. To prevent moisture or small water droplets from being measured the probe is usually heated to minimize this effect. As an unwanted side effect, semi-volatile compounds such as nitrates, sulfates, etc. are vaporized before they can be measured. Instead of heating the probe, the GRIMM EDM isothermically extracts the humidity by dry air or Nafion tubes, a process patented by GRIMM. Scientists all over the world agree that the semi volatile compound (SVC) fraction normally produced by manmade processes (industrial areas, automotive, combustion, etc.), can amount to 20-50% of the total dust. In addition to the PM10 + PM2.5 + PM1 values, this contribution can be determined as an SVC fraction by a GRIMM EDM M5 Data Logger System Size: 10 x 10 x 4cm The EDM 365 series comes with an integrated data logger system. This logger combines the information from the GRIMM dust monitor with other integrated sensors. This all-in-one microcomputer interface features an integrated web server, facilitating customer interaction with the instrument on the basis of TCP/IP protocols. Digital Meteorological Sensors Our new digital meteorological sensor program is now available for all GRIMM EDM systems and has already become a standard in the EDM 365 product range. This 158L model delivers information on temperature, relative humidity, pressure, wind speed and wind direction. The optional model #159L combines the features of the #158L with a ultra sonic sensor for rain and snow information NanoCheck Sensor TSP PM10 PM2.5 PM1 TC Since optical measuring technologies reach their limit with particle diameters of less than 150 nm, we developed our NanoCheck 1.320: A device closing this gap down to 25 nm and providing information on the number and mean size of these nano particles. The combination of our optical spectrometer with the NanoCheck delivers additional information on ultrafine aerosols (soot particles from vehicle emissions, for instance) and mechanically created aerosols (such as tire and brake abrasion). AS a consequence, the NanoCheck add- on in combination with the EDM 365 represents the perfect tool for assessing air quality at road sites. Just think of the Green Zones currently set up all over the world, which can now be properly evaluated by such an instrument combination. COUNTS NANO Meteorology 365 Gas Sensors This indicative sensor was recently added to the GRIMM product portfolio to give customers the opportunity of acquiring an even more extensive environmental monitoring system. The gas system can be equipped with 2 different toxic gas detectors (CO, H2S, So2, NoX or Nh2) as well as a PID sensor. This sensor can be linked with the above data logger system to the EDM365. GAS PAH

5 Benefits of GRIMM EDM Monitors FOUR VALUES SIMULTANEOUSLY The GRIMM EDM 180 is the only commercially available fine dust monitoring unit in the world, approved for PM 10 & PM 2.5, capable of measuring PM 10, PM2.5 and PM1 in µg/m³, as well as TC (total particles) in p/l at the same time. Measurement updates of all these values are provided in 60- second intervals and in combination with optionally available meterological sensors identifying the origin is facilitated, thus permitting a better risk assessment. LITTLE MAINTENANCE REQUIRED All GRIMM Environmental Dust Monitors are designed in such a way as to require as little maintenance as possible; a field system check with a foolproof test kit should be largely sufficient. ISO 9001 stipulates that calibration of the spectrometer of that system is calibrated once every 12 to 18 months. Instead of calibrating several instruments - one for each PM value - there is but one GRIMM instrument needing calibration. REMOTE SERVICE, CONTROL & DATA ACCESS Output data from the instrument can be directly transmitted to your environmental network, your Intranet or the world wide web by using our Data Logger 1142.M5 (or the integrated German GESYTEC protocol). Scientists or environmental engineers thus gain access to the data from anywhere in the world via the WWW, by SMS or other data transfer system. Worldwide access to the service interface of our instrument for the purpose of preventive maintenance is possible as well. A fully automatic self-test and control system monitors the performance of the instrument and reports possible errors. All this results in a considerable reduction of the total cost of ownership! The GRIMM data web page (see page 15) gives every customer the chance to look into his measurement results in real time from anywhere. COMPACT SOLUTION Apart from the fact that our instruments needed to be designed to include all necessary accessories one of the major objectives was the minimization their dimensions. Focusing on arriving at the smallest possible instrument size while not compromising reliable measurements the instruments we can offer compact and handy solutions for your everyday work. 4 I N 1 NO RADIOACTIVE SOURCE All these instruments operate with lasers; therefore, no radioactive license is required. Transport, service and disposal of the products is no longer a problem. PM 10 NO CONSUMABLES None of our Environmental line products requires any consumables, such as filters, filter bands or the like to be changed on a regular basis. This translates into reduced costs, fewer visits and a constant revalidation of the unit. PM 2.5 PM 1 LOW POWER CONSUMPTION Due to the small air flow, the power requirement is minimal! Save lots of money in the course of a year thanks to our use of small pumps, low laser power, etc. TC

6 GRIMM EDM 107 Advantages Fully automatic Portable Handheld Dust Monitor Simultaneous measuring of PM 10, PM 2.5, PM1 and TC (total counts) combined with gravimetric sampling (patented) 3 different PM s Particle size (opt.) Rel. humidity (opt.) Air temperature (opt.) Air pressure (opt.) Data logger card RS-232 Front view with digital display Rear view with removable filter Battery-operated Applications Mobile monitoring Hot spot monitoring Tunnel test Public site monitor Source identification Handling Benefits of EDM 107 Handheld unit Not critical to vibration No radioactive source Our smallest portable spectrometer is the EDM 107 measuring 24 x 12 x 6 cm and weighing a mere 2.5 kg (battery included). Results are collected in 1-minute intervals and the data stored on the removable data logger card or shown online on a PC. Specifications EDM 107: Similar to our certified EDM 180 with respect to EN12341 EN14907 US-EPA GOST R Measuring principle: Laser light scattering (90 ) Measurement results: 0.25 to >32 µm/31 channels or TSP, PM10 and PM2.5 or PM 10, PM 2.5, PM1 and TC Particle concentration: 1 to 2,000,000 particles/liter Data presentation: in intervals from 6 sec. to 1h Sampling system: 47 mm PTFE filter 3 Dust mass: 0.1 to >6,000 µg/m Sample flow: 1.2 l/min, flow-controlled Reproducibility: 3 % in max. range Power supply: 18 VDC Weight: 2.5 kg incl. lead battery Battery life: up to 8h of operation Temp. range: + 4 C to + 50 C 47 mm filter holder Little maintenance Only 2.5 kg This picture (left) shows the EDM 107 integrated in our outdoor weather housing 165 and combined with a meteorological set, installed at a seaside location.

7 NEW COMPACT EFFICIENT & RELIABLE GRIMM EDM 164 Portabe Industrial Enviro-Check EDM 164 Model 164 is the combination of our efficient and reliable EN & US-EPA approved GRIMM light-scattering technology for aerosol monitoring with a smart dehumidification system. This system has been designed for maintenance-free long-term monitoring without any operator interaction. A combination with optional sensors for meteorology (wind speed, wind direction, humidity, temperature and precipitation) is optionally available. Data are available in real-time, stored in the internal memory and can be read out with the included PC software; alternatively, it can directly be uploaded to the world wide web in real-time via our Data Logger 1142.M5. Specifications EDM 107: Similar to our certified EDM 180 with respect to EN12341 EN14907 US-EPA GOST R Measuring principle: light scattering optics Measurement results: PM 10, PM 2.5, PM1 and TC optional: 0.25 to >32 µm in 31 channels Particle concentration: 1 to 2,000,000 particles/liter Data presentation: in intervals from 6 sec. to 1h Data storage: internal storage 3 Dust mass: 0.1 to >6,000 µg/m Sample flow: 1.2 l/min, volume-controlled Reproducibility: 5 % in max. Range Software: GRIMM #177 Specifications Housing: Housing: Sampling system: Winter protection: Dehumidification: Ventilation: Meteorology: Data logger: Security: Fixation: Power supply: optional: Temperature range: Dimensions: System weight: 164 PM2.5 [µg/m³] vs. 164, PM2.5, a = 0,005%, N = 1371 y = 0,8431x - 0,1664 R 2 = 0, PM2.5 [µg/m³] Glass fiber, gray 0.5 m of pipe with TSP head Heating inside Heated sampling pipe Autom., proportional Optional Optional Double lock system Wall support hook 110V/230 VAC, Hz 12V - 32 VDC - 25 C to +50 C 40 x 40 x 20 cm 12 kg THE BEST IN PRICE & PERFORMANCE Advantages Fully automatic Portable 3 different PM s No radioactive source Not critical to vibration Little maintenance Extended memory DC power supply for solar panel or truck (optional) Particle size (optional) Meteorological sensors (optional) Data logger (optional) RS-232 Applications Mobile monitoring Hot spot monitoring Public site monitor Source identification TSP PM 10 PM 2.5 PM 1 TC COUNTS

8 GRIMM EDM180 Advantages Fully automatic 19 rack solution 3 different PM s Auto-dehumidification Particle size (optional) Relative humidity Air temperature Air pressure GESYTEC protocol Data logger system RS-232 port 19 Rack Mounted Dust Monitor Stationary Approved Environmental Dust Monitor for the simultaneous measuring of PM, PM and PM The GRIMM EDM 180 has the capability to simultaneously measure PM10 and PM2.5 values in real-time, and conforms to European standards EN for PM10 and EN for PM 2.5. Values for PM1 and TC (total counts) are provided as well even though EN standards for those have yet to be established. Like a modular system, our EDM 180 can be delivered with one PM value determination only and subsequently be upgraded to deliver up to 3 PM values and the total count; in addition, the complete particle count information from 0.25 µm to 32 µm can be made available in 31 size channels (refer to page 16) Applications Enviro network Aerosol sizer Source identification Design Benefits EC approval for PM PM 2.5 equivalent PM fraction 1 10 TC value All in one system No loss of SVC Service data access Not critical to vibration No radioactive source Little maintenance Auto retrack system Specifications EDM 180: Approved for: EN12341 EN14907 GOST R US-EPA (pending) Measuring principle: Laser light scattering (90 ) Measurement reporting modes: EDM180-C: PM10 and PM2.5 EDM180-CE: TSP and PM10 EDM180-D: PM 10, PM 2.5, PM1 and TC EDM180-E: 31 size channels from 0.25 to >32 µm or Pm 10, PM 2.5, PM1 and TC Particle concentration: 1 to 2,000,000 p/l 3 Dust mass: 0.1 to >6,000 µg/m Sample flow: 72 l/h, flow-controlled Dehumidification: Autom. nafion dryer system Reproducibility:3 % in max. range Power supply: 230 V, 50 Hz/ 110 V, 60Hz Power consumption: 80W Size: 19, 6HE

9 Approved Worldwide & Unrivaled Certifications and Approvals Worldwide approval and certification tests in the course of some 15 years of field experience have put us in a position where today, we can exactly calculate the correct PM values in ambient conditions with an optical laser system. Today, this unique GRIMM EDM 180 is the only optical system to have passed environmental approvals for PM monitoring in accordance with gravimetric reference systems for PM as well as PM. GRIMM model EDM 180 is the only approved PM monitor worldwide providing PM and PM simultaneously in real-time PM 10 approved PM 2.5 Correlation Slope Intercept

10 GRIMM EDM 180 Options NANO Model NanoCheck Particle Sensor: With optically measuring technologies reaching their limit at some 150 nm, we developed the NanoCheck to be used in combination with our EDM 180. This unit closes the gap down to 25 nm and provides information about the number and mean size of nano particles below the optical detection limit. It comes in a rack mounted version as depicted on the right. The upcoming NanoCheck Sensor will be able to monitor these nano particles in size ranges of 4 different classes. System 1.320/1.321 is a great add-on to the EDM 180 with an integrated 1142.M5 Data Logger and a touch panel. Get the benefit of being able to see ultrafine particle values in real-time on the display. Meteorology Sampling NEW Meteorological Sensors: Our new meteorological digital sensor program has now become available for the EDM 180/ 365/ 665 instruments as an option. It replaces the existing analogous sensors and upgrades the EDM 180 to benefit from this new digital technology Three versions are available: Model 157L for temperature, relative humidity and ambient pressure. Model 158L adding wind speed and wind direction to the features of model 157L Model 159L topping model 158L with an additional ultrasonic sensor for precipitation (rain and snow). Please note that apart from the 184L, sensors 158L and 159L require the 1142.M5 Data Logger as well. When upgrading from the standard analogous sensors, the 184L sensor connection kit is always required. Automated Filter Sampling: To obtain specific samples for laboratory testing (to determine the chemical composition for instance) of dust exceeding a certain value, we also supply intelligent filter sampling systems. Sampling time and sampling intervals are computer-controlled and can be set / modifed by the end user, which is true for the filter change of the 14 or more filters (25 to 47 mm). Another useful feature of the GRIMM instruments. NEW Outdoor Housings: To guarantee an accurate data acquisition in conformity with worldwide governmental regulations, we supply environmental 19" protective housings for our systems featuring integrated data acquisition systems and A/C. For detailed information ask for our GAS catalogue.

11 Calibration & Quality How are Grimm Aerosol instruments calibrated? Each manufacturer calibrates his systems differently. Since no worldwide standard for the calibration of aerosol spectrometers exists, GRIMM developed their own in-house calibration process. This process has been validated by Government Departments and is based on a real-time comparison and adjustment between a reference unit and the unit to be Quality End Control Grimm Calibration Process Calibration between the candidate and the reference unit makes use of a "Grimm Calibration Tower" (shown on the left): The computer-controlled process itself is completely automated. Dolomite dust is used for our calibration aerosol. Dolomite dust is anoxic, not hygroscopic, polydisperse and very stable during storage. In addition, Dolomite dust covers the entire sizing range for all Grimm spectrometer from approx. 0.2 μm to >30μm. Due to the fact that both the reference unit and the candidate were manufactured identically, the Dolomite dust has to produce identical results in both spectrometers. The dust is injected at the top of the cylindrical calibration tower by particle-free compressed air and homogeneously dispersed within the entire tower. Up to three calibration candidates and one reference unit are attached to the bottom of the tower via identical aerosol inlets. A reverse flow of particle-free compressed air from the bottom to the top of the cylindrical tower guarantees a welldefined and reproducible aerosol particle distribution during the whole calibration process. All Enviro Systems are subjected to a long-term test by operating them complete with sampling pipe and weather housing (or outdoor rack) for a week in an outdoor reference system. During this time period, all functions are tested; humidity and temperature sensitivity of the probes, the humidity controlled mixing service or the temperature regulation, for instance. The data thus obtained are stored for each delivered unit. QUALITY 100% Quality Control Control IS OUR Made in Germany DUTY Extended System Check

12 GRIMM EDM 365 Advantages Fully automatic Outdoor stainless steel housing Housing with auto ventilation and heating 3 different PM s Auto dehumidification Particle size (opt.) Relative humidity Air temperature Air pressure GESYTEC protocol Data logger card RS-232 port Meteorology (opt.) Mobile Stand-Alone Environmental Monitoring Station For a simultaneous measuring of PM 10, PM2.5 and Pm 1 (or TSP) in real-time plus - optionally - rel. humidity, temperature, wind speed, wind direction, precipitation and atm. pressure All data are transferred online to the world wide web. GRIMM sets a new trend: instead of big measurement containers with cost-intensive maintenance requirements, our units are small and compact while making no compromises regarding dust and meterological demands. Our EDM 365 meets all demands and today, many of these stations are successfully operating in places all over the world and under the most adverse atmospheric conditions. Starting in 2011 we will offer devices of the next generation with additional gas sensors to permit the measurements of airborne gaseous pollutants (such as VOC, NOx, ozone, and CO), for better chemical differentiation. TC values Applications Enviro station Mobile PM monitoring Aerosol sizer Hot spot monitoring Source identification Construction Benefits Mobile housing No need for shelter All-in-one system Space for nano sensor Space for met. sensors Space for PAH sensor Not critical to vibration No radioactive source No loss of SVC Low maintenance Chemical analysis (opt.) Gravimetric analysis (opt.) Correlation of two different GRIMM instruments Specifications EDM 365: Equivalent to our certified EDM 180 complying with: EN12341 & EN14907 US-EPA GOST R Measuring principle: Laser light scattering Measurement reporting modes: EDM 365-C: PM10 and PM2.5 EDM 365-CE: TSP and PM10 EDM 365-D: PM 10, PM 2.5, PM1 and TC EDM 365-E: 31 size channels from 0.25 to >32 µm or PM 10, PM 2.5, PM1 and TC Particle concentration: 1 to 2,000,000 particles/liter 3 Dust mass: 0.1 to >6,000 µg/m Sample flow: 72 l/h, flow-controlled Dehumidification: Automatic nafion dryer system Reproducibility: 3 % in max. range Power supply: 230 VAC, 50 Hz (Optional: 110 VAC, 60 Hz) Dimensions: 80 x 60 x 40 cm Weight: 25 kg Temp. range: - 25 C to + 50 C

13 Measuring Principle EDM 365 Features and Options AIR FLOW: TSP PM10 This inlet was designed to meet the requirements defined at the Johannesburg convention. Sample air at a volume flow of 1.2 liter/minute is directly fed into the measuring cell by passing through a TSP (total suspended particles) head and the probe inlet. Thanks to this unique principle none of the GRIMM instruments need any size-selective sample inlets as do all other dust monitors on the market. OPTICAL SYSTEM: The sample air is then passing through the heart of the patented GRIMM spectrometer cell that has been designed as a single particle detection and counting system. As a consequence, we can guarantee that every single particle is measured by the instrument. PM2.5 Measuring Principle Detector Sample air Light trap PM1 90 Scattering angle Mirror TC COUNTS Aperture angle The optical system was optimized in such a way as to ensure that the refractive change (color) is negligible. Even in the nano size range the sensitivity across the size channels an excellent sensitivity is ensured. PM CLASSIFICATIONS: All particles (aerosol) passing through the measurement cell are classified by size distribution into 31 channels. Based on this size distribution principle, we obtained the European Equivalence Approval for PM10 and PM2.5 as well as the US-EPA Approval for PM2.5. The required figures for PM10, PM2.5, as well as for the suggested PM1 are arrived at by multiplying the obtained count concentrations with the corresponding specific density factors then to be added to the total masses of each PM channel. This is all done automatically by the instrument. SVC MONITORING: NANO One of the main problems in measuring ambient air is high humidity. To prevent moisture or small water droplets from being measured the probe is usually heated to minimize this effect. As an unwanted side effect, semi-volatile compounds such as nitrates, sulfates, etc. are vaporized before they can be measured. Instead of heating the probe, the GRIMM EDM isothermically extracts the humidity by dry air or Nafion tubes, a process patented by GRIMM. Scientists all over the world agree that the semi volatile compound (SVC) fraction normally produced by manmade processes (industrial areas, automotive, combustion, etc.), can amount to 20-50% of the total dust. In addition to the PM10 + PM2.5 + PM1 values, this contribution can be determined as an SVC fraction by a GRIMM EDM M5 Data Logger System Size: 10 x 10 x 4cm The EDM 365 series comes with an integrated data logger system. This logger combines the information from the GRIMM dust monitor with other integrated sensors. This all-in-one microcomputer interface features an integrated web server, facilitating customer interaction with the instrument on the basis of TCP/IP protocols. Digital Meteorological Sensors Our new digital meteorological sensor program is now available for all GRIMM EDM systems and has already become a standard in the EDM 365 product range. This 158L model delivers information on temperature, relative humidity, pressure, wind speed and wind direction. The optional model #159L combines the features of the #158L with a ultra sonic sensor for rain and snow information NanoCheck Sensor TSP PM10 PM2.5 PM1 TC Since optical measuring technologies reach their limit with particle diameters of less than 150 nm, we developed our NanoCheck 1.320: A device closing this gap down to 25 nm and providing information on the number and mean size of these nano particles. The combination of our optical spectrometer with the NanoCheck delivers additional information on ultrafine aerosols (soot particles from vehicle emissions, for instance) and mechanically created aerosols (such as tire and brake abrasion). AS a consequence, the NanoCheck add- on in combination with the EDM 365 represents the perfect tool for assessing air quality at road sites. Just think of the Green Zones currently set up all over the world, which can now be properly evaluated by such an instrument combination. COUNTS NANO Meteorology 365 Gas Sensors This indicative sensor was recently added to the GRIMM product portfolio to give customers the opportunity of acquiring an even more extensive environmental monitoring system. The gas system can be equipped with 2 different toxic gas detectors (CO, H2S, So2, NoX or Nh2) as well as a PID sensor. This sensor can be linked with the above data logger system to the EDM365. GAS PAH

14 GRIMM EDM 665 System components 19 GRIMM Optical Particle Counter with 31 size channels 19 GRIMM CPC Condensation Particle Counter with included M-DMA (Vienna Type) and 44 size channels Sampling probe with isothermal dehumidification (no heating) Shelter outdoor housing with air-conditioning system Highlights Counts all particles from 5.5 nm up to 32 µm 71 size classes Concentration 1 to 10 particles/cm 7 3 Stand-alone measurement Fully automatic 19 rack mounted instruments Unsupervised operation for extended periods of time Applications Environmental studies Aerosol research Mobile aerosol studies Roadside monitoring Engine exhaust studies Health effect studies Atmospheric Research Outdoor Wide Range Aerosol Spectrometer Main specifications EDM 665: Measurement range - 71 size channels from 5.5 nm up to 32 µm - Minimum scan time of 300 seconds - Concentration range from 1 to 10 P/cm 7 3 Optical device - Size range: 250 nm to 32 µm 31 size channels - Particle counts: 1 to 2,000,000 P/liter - Sample flow: 1.2 l/min - Reproducibility: 3% in max. range SMPS+C device - Size range: 5.5 nm to 350 nm 40 size channels - Particle counts: to 10 P/cm - Sample flow: 0.3 l/min - Auto refill: Butanol refill of internal tank simply by connecting the bottle - Condensate removal: Continuous evacuation by micro-pump into a collecting flask Communication ports - integrated Microcomputer for data acquisition - integrated GRIMM data logger 1142.M5-2 x RS-232 with 9-pin D connector - 2 x PCMCIA-slots for memory card use - Digital inputs for meteorological or gas sensors Operating conditions - Ambient temp.: -20 C up to +55 C - Power supply : 110/220 VAC, 50/60 Hz - Power consumption: 750 W Flagship of the GRIMM Enviro line - the EDM 665 Wide Range Aerosol System. This unique combination of optical and electrical mobility particle sizing technologies ideally supports environmental research in an extremely wide range of average particle diameters from 5 nm to 30,000 nm. Examples of obtained data Dimensions & Weight incl. A/C - Size: 60 x 60 x 120 cm - Weight: 120 kg - Sample pipe: 1.5 m (3 m optionally avail.)

15 Data Acquisition 1142.M5 Data Logger Logger 1142.M5. This data logger is an all-in-one microcomputer interface with integrated web server permitting an interactive communication with the instrument based on TCP/IP protocols. This logger can be combined with all GRIMM products adding the following features to our instruments: Extended storage of up to 4 GB, remote control, the possibility to combine information from GRIMM monitors with data from various other sensors such as meteorology and gas probes. Data can be transmitted in real-time to the world wide web, our GRIMM data base system, your web page or an Intranet. The GRIMM database system offers a range of possibilities for the remote administration and configuration of your instrument from wherever you are and the data thus obtained can be presented Online Real Time Charts Tables Data Tables export Count values Measurement results online in real time PM values Tables GPS Google TablesMaps Remote Control Google map, GPS position and instrument status. Terminal feature for remote access of the instrument online switch between PM and count mode User management Integrated function for automatic instrument control, data export and management by the press of a button Download software demo for free trial

16 DATA PRESENTATION The GRIMM software programs for environmental measurement instruments can present all data obtained from the instrument itself (or via logger) numerically and graphically or as a histogram. Data export functions to different file types, MS Excel export, different print functions as well as instrument configuration tools are implemented. Examples of results sorted by the different EDM Model versions are shown in the below graphs to give you an impression of the possibilities to present data from the GRIMM Dust Monitors. TSP PM 10 PM 2.5 GRIMM EDM Model Type A - PM 10 GRIMM EDM Model Type B - PM 2.5 PM 1 TC GRIMM EDM Model Type C PM & PM GRIMM EDM Model Type D PM, PM, PM & TC COUNTS NANO GRIMM EDM Model Type E 31 size channels and reversable PM fractions GRIMM EDM Meteorological Data METEOROLOGY Our GRIMM TEAM is traveling all around the world to advise customers the best available solution in DUST Monitoring. FOR YOUR NEAREST EXHIBITION, ROAD SHOW OR SYMPOSIA VISIT OUR WEB OR CONTACT US.